From Leads, Quotations, Estimates, Invoices, Accounting, Client Relations and Networking - Refrens is everything you&#x27;ll ever need to run your business seamlessly. Refrens powers the operating system for over 150k businesses and freelancers across 178 countries.

Refrens - Product Information, Latest Updates, and Reviews 2024 ...

We're a SaaS company Refrens.com that provides CRM and Accounting solutions, and we're looking for B2B channel partners to help us reach our target audience and grow our business. Here are just a ...

Partnership Program.

Manufacturing, Wholesale and Retail Trade sectors poised to lead in AI adoption. 08 Jun, 2023 - 05:20 PM IST | By indiantelevision.com Team Mumbai: On 19 July, The Belgian Waffle Co, India's ...

Generative AI poised to unlock $621 Billion in productive capacity for India: FICCI - Access Partnership report

Revolutionizing Digital Marketing: Itzfizz Digital Empowers SMBs with Innovative Services and Personalized Approach to Boost Online Presence. BANGALORE, KARNATAKA, INDIA, May 8, 2023/EINPresswire ...

Itzfizz Digital Empowers SMBs with Comprehensive Digital Marketing Services through Rebranding

Revolutionizing Digital Marketing: Itzfizz Digital Empowers SMBs with Innovative Services and Personalized Approach to Boost Online Presence. BANGALORE, KARNATAKA, INDIA, May 8, 2023/einpresswire ...

Itzfizz Digital Empowers Smbs With Comprehensive Digital Marketing Services Through Rebranding

The popular perception of an entrepreneur is someone who is building a large business, with a growing team. But, there are other kinds of entrepreneurship models. A single person with a skill that is in-demand could be a solopreneur or a freelancer. And ...

How solopreneurs and freelancers can use generative AI

The rise of solopreneurship and freelancing is on the rise globally and in India, according to the Global Entrepreneurship Monitor report and Refrens, a Bangalore-based business operating platform for freelancers and agencies across the world.

How solopreneurs, freelancers can use AI

Chaz Bono, the eldest of Cher’s kids, was born as Chastity Bono on March 4, 1969. Originally known as Cher’s daughter with then-spouse Sonny Bono, Chaz later came out as transgender. When he was still a child, Chaz appeared numerous times in The Sonny ...

What You Didn’t Know About Cher and Her Kids

Review of Refrens Software: system overview, features, price and cost information. Get free demos and compare to similar programs.

Refrens Software Reviews, Demo & Pricing - 2023

An envelope. It indicates the ability to send an email. An curved arrow pointing right. When you buy through our links, Insider may earn an affiliate commission. Learn more. The streaming market ...

The best streaming services you can sign up for in 2022

Refrens

refrens

Disclaimer: This post was assisted by AI to do research, create an outline, detect plagiarism, and check grammar. The rest is human-crafted. Getting paid is one of the biggest challenges facing freelancers today. After putting in hours of hard work, it can be incredibly frustrating to have to chase down clients for payment. Unfortunately, clients failing to pay freelancers on time (or at all) is an all-too-common occurrence, as can be seen from weekly and even daily complaints on LinkedIn about clients taking months on average to pay. The freelance economy is not going anywhere. It can be very lucrative and often provides work that gives the same or more pay as a full-time role. Or it can support people with extra income who need some more money. Over have been completed on Freelancer.com alone. Millions more must be done through other platforms or directly between the freelancer provider and clients. And still, freelancers have trouble getting paid by clients who nevertheless demand high-quality work on time. 200K+ WordPress projects To avoid such common scenarios, we present some actionable tips to help freelancers get paid for their work and avoid problematic clients. With the right precautions, you can protect yourself from non-payment or late payments that put your freelance business at risk. Get a Deposit Upfront Getting a deposit upfront from a new client is one of the best ways freelancers can protect themselves before starting work. I recommend asking for 25-50% of the total project cost upfront before you begin. An upfront deposit helps ensure the client is invested in the project and incentivized to continue working with you. It also provides you with funds so you can comfortably start working without having to worry as much about non-payment later on. With the deposit in hand, you can purchase any materials, software, or assets needed for the project with the confidence that you will at least recover these costs. The remaining payment can then be scheduled upon completion of clearly defined milestones or delivery of the final product. Just be sure the deposit is specified in your project proposal or contract. I recommend 25% of the total for shorter projects or 50% for longer, multi-month engagements. Alternatively, you could request part payments at different time periods or milestones. This ensures you aren't left doing free work if the client decides to ghost you mid-project. We do understand that this isn’t feasible for all freelancers, especially new ones. However, once you establish yourself in the market and clients know your value, they will be more willing to give you your deposit. Use Contracts Having a strong contract in place before is one of the best ways to protect yourself and ensure you get paid. The contract should clearly spell out all payment terms, including: starting any freelance engagement When payment is due (e.g., 50% upfront or 15 days after delivery and so on) Exact payment dates and milestones associated with each payment. Your late fee policy - make it high enough to deter late payments (e.g., 1.5% per month) Steps you will take to collect late payments, including sending to collections, suspending work, etc. Get all of this agreed to upfront and have the client sign the contract before you start working. This gives you legal recourse if the client tries to wiggle out of paying. The clearer you are about payment schedules and repercussions for late payments, the more likely you'll avoid issues. You might have to invest in a proposal or contract tool, but you’ll find that such an investment is worth the time and hassle saved when you have legal proof of expectations and processes. Send Invoices Properly Be sure to send invoices on time and as specified in your contract terms. The invoice should clearly state the payment amount owed and preferred payment methods, which could include options like bank transfer, PayPal, credit card, or even wallets. Today, payments are easier than ever to make and of all payments online in 2025. This makes it easier for businesses and clients to pay you - not harder and you should remember that when you make your contracts and invoices. online wallets will become 52% I also suggest using a payment platform or contract tool that has templates for these matters. Also, create emails with templates for reminders or for sending invoices. Whatever you do, make sure you create a professional invoice with clear terms, amounts, and your service provided to collect payments smoothly and avoid late or missed payments. Use Escrow Services Escrow services allow a third party to hold payment in escrow until work has been completed and delivered. This gives both the freelancer and the client assurance during the project. Popular freelance sites like Upwork offer escrow services to protect both parties for anyone who uses its service. When a new contract is started, the client funds the escrow account. Once the freelancer completes the work and the client accepts, the funds are released from escrow to the freelancer. Using escrow services like those offered by Upwork reduces the risk that a client will fail to pay for completed work. However, you’ll also pay a steep price to use the platform. You can use other third-party dedicated escrow services like Refrens and others. Using escrows helps you feel confident that payment is secured, and your client knows they won't pay until they've received the finished product. Screen Clients Thoroughly Before accepting a new client, it's important to do your due diligence and thoroughly screen them. This can help avoid working with clients who may have a history of payment issues or are difficult to work with. Here are some tips: Research the client's reputation and background. Search online for reviews, complaints, news articles, social media accounts, etc., to get a sense of their business practices. Ask for referrals. Reach out to people who have worked with them before and ask about their experience. Also, request samples of projects they’ve commissioned to evaluate their expectations. Check for any public records of lawsuits, tax liens, etc., that may indicate financial issues. Search court records and other public databases if you’re working on a large project. For most cases, a simple Google search will do. Avoid taking on clients that seem evasive, rushed, or refuse to provide references. Be wary if they push back against screening requests. Vetting clients thoroughly on the front end can help avoid nonpayment and other issues down the road. Trust your gut instinct if something seems off about a potential client during screening. It's better to turn down work than risk not getting paid. Have a Collection Process It's important to have a clear process or workflow for collecting fees, especially ones that are late or unpaid. This will help ensure you handle them in a consistent and professional manner. Here are some tips: Follow up at 15-30 days late with an email and/or phone call to politely check on the status of your payment. Remind them of the amount owed and the due date. Be firm but still professional in setting expectations for payment. For example: "As outlined in our contract, payment is due within 30 days. Let's discuss how we can get this resolved." Outline the next steps if payment is still not received after the initial follow-up. For example, pausing work, adding late fees, involving legal counsel, etc. Explicitly stating your policies shows you are serious about getting paid. Escalate accordingly if there is still no response after multiple attempts. Keep documentation of all attempts to collect payments. Having a process gives you clear steps to follow up professionally while still reinforcing that you expect to be paid per your agreement. Be persistent and consistent to show you are serious about getting owed payments. Conclusion Your final option is to take up legal help - which is not something anyone wants. But if the project is big enough and you feel it’s necessary, then it may be your only option. Protecting yourself financially as a freelancer is crucial to running a successful business. With the tips and advice outlined above, you will be better equipped to avoid nonpayment, handle late or unpaid invoices, and take necessary action when needed. Don't be afraid to take action to get paid for your hard work and talent. Often, a stern email is all that’s needed. Or a bit of research can prevent you from giving your time to businesses that don’t intend to honor your agreement. Your time and effort are valuable, and you deserve to be compensated for it. Remember to always prioritize your financial security as a freelancer. There are plenty of great clients out there who will value your work and pay you fairly, so don't settle for less.

Collecting Payments: Tips for Freelancers to Protect Themselves

How to Implement the Pull-to-Refresh Feature in iOS 18 - #30DaysOfSwift

In most cases, Tableau tasks are scheduled to run at designated times, however, there may be occasions where the flexibility is not sufficient. If you're looking for a more flexible way to work with Tableau, you might want to check out the Tableau Server Client. It’s a Python library for the Tableau Server REST API. Using the TSC library, you can manage and change many of the Tableau Server and Tableau Cloud resources programmatically. Step 1: Authentication The provided Python code establishes a connection to Tableau Server using the Tableau Server Client (TSC) library. It authenticates using the provided account credentials and establishes a connection to the specified Tableau Server site. Once authenticated, the code allows access to Tableau Server resources for tasks such as querying data, publishing workbooks, and managing server content. import pandas as pd
import tableauserverclient as TSC

tableau_auth = TSC.TableauAuth('account', 'password', site_id='site_id')
server = TSC.Server('http://localhost', use_server_version=True)
server.auth.sign_in(tableau_auth) Make sure to replace ' ', ' ', and ' ' with actual credentials before running the code. account password site_id Step 2: List All Tasks and Find Task ID This code signs in to Tableau Server using provided authentication credentials, then retrieves all tasks from the server and creates a dataframe to store the , , and for each task. Taskid schedule_item task_type # get all tasks and find the Taskid
with server.auth.sign_in(tableau_auth):
    all_tasks, pagination_item = server.tasks.get()
    df_tasks = pd.DataFrame()
    df_tasks['Taskid'] = [task.id for task in all_tasks]
    df_tasks['schedule_item'] = [task.schedule_item for task in all_tasks]
    df_tasks['task_type'] = [task.task_type for task in all_tasks]
print(df_tasks) You can easily navigate through the dataframe to locate the specific task you wish to work with and then proceed to copy its corresponding Taskid in preparation for the next step. Step 3: Run or Delete a Task run a task You could use the following code to runs the specified extract refresh task, make sure to replace the with the actual id that you want to work with. id # replace the id 
with server.auth.sign_in(tableau_auth):
    task = server.tasks.get_by_id('9f9e9d9c-8b8a-8f8e-7d7c-7b7a6f6d6e6d')
    server.tasks.run(task)
    print("successfully refreshed") delete a task Deleting a task may not be as frequently utilized as running one, but it is just as straightforward. With the following code, you can smoothly delete a task. # delete a task
with server.auth.sign_in(tableau_auth):
    server.tasks.delete('9f9e9d9c-8b8a-8f8e-7d7c-7b7a6f6d6e6d')
    print("successfully deleted") References Tableau Server Client (Python) Tableau REST API Help Thank you for taking the time to explore data-related insights with me. I appreciate your engagement. If you find this information helpful, I invite you to follow me or connect with me on . Happy exploring!👋 LinkedIn

Using Python to Refresh Tableau Dashboard

ClickHouse NewYear Release A new version of ClickHouse was released in December 2023. Let’s see what exciting new features are inside and dive into one of them - new refreshable materialized views! What is on the board? This release contains 21 new features, 18 performance optimizations, and 37 bug fixes. Here are several exciting features I would like to you to know about: New Refreshable Materialized Views. It creates crontab-like refreshing views. New PASTE JOIN clause. Handy 1-to-1 row join of datasets. New ORDER BY clause ALL. Syntax sugar to order query by every column from the SELECT statement. New mutation command ALTER TABLE <table> APPLY DELETED MASK. It applies a mask written by lightweight delete to remove rows marked as deleted from the disk. Ability to refer to ALIAS column in index (non-primary-key) definitions. The complete changelog you can read . here In the meantime, I’ll show an example of the materialized views usage. Refreshable Materialized Views ClickHouse runs the corresponding query and stores its result in a table, replacing the table's previous contents, which differs from regular non-refreshable materialized views fundamentally: it’s not incremental, it’s entire recalculation and reformating data from the source tables. periodically atomically Of course, there are trade-offs: it’s not online anymore, and this is the cost for aggregation queries. Non-refreshable materialized views are limited by using aggregation functions in the query since they apply only to the incremental data. There are no restrictions on the SELECT query. Table functions (e.g. url()), views, UNION, JOIN, are all allowed. Since the feature is experimental, you have to enable it by setting SET allow_experimental_refreshable_materialized_view = 1 Let’s create a sort of synthetic example: crawler traverses urls on the single domain using DFS and stores request headers, response headers, and content to the plain table. CREATE TABLE IF NOT EXISTS crawler.pages (
 url String,
 req_headers Map(String, String),
 resp_headers Map(String, String),
 resp_code Int, 
 content String,
 links Nested (
 uri String,
 titles Array(String)
 )
)
ENGINE MergeTree
PRIMARY KEY url
ORDER BY url This new feature allows me to build handy pipelines. The following example is pretty synthetic, however, it demonstrates The original (“source”) table may contain duplicates for any page, so the first step of data processing would be the selection of the unique pages with the additional condition non-empty etag response header and response code 200 using data transformation like domain extraction and crawling date parsing. CREATE MATERIALIZED VIEW IF NOT EXISTS crawler.uniqpages
REFRESH EVERY 2 MINUTE --- refresh could be SECOND|MINUTE|HOUR|DAY|WEEK|MONTH|YEAR
RANDOMIZE FOR 1 MINUTE 
ENGINE = Memory
AS SELECT DISTINCT
 domainWithoutWWW(url) as domain, -- extract domain from the url builtin func
 path(url) as uri, -- extract path from the url builtin func
 url as url,
 resp_headers['etag'] as etag,
 parseDateTime32BestEffort(resp_headers['date']) as crawled_at, -- datetime parsing
 req_headers['user-agent'] as user_agent,
 resp_code as resp_code,
 links.uri as nei_uris,
 links.titles as nei_titles
FROM
 crawler.pages
WHERE
 resp_headers['etag'] <> '' AND resp_code = 200 The second step is to precalculate per domain unique valid page stats. This step would be dependent on the uniqpages view refresh completion, without this dependency those both start simultaneously. CREATE MATERIALIZED VIEW IF NOT EXISTS crawler.stats
REFRESH EVERY 2 MINUTE 
DEPENDS ON crawler.uniqpages -- sync with uniqpages view, this ensures refresh to run in sequence
ENGINE = Memory
AS SELECT DISTINCT
 domain,
 count(1) as qnt
FROM
 crawler.uniqpages
GROUP BY
 1
ORDER BY
 ALL Check the for any record to verify results. uniqpages dd4a5ae26651 :) select * from uniqpages limit 1 format Vertical

SELECT *
FROM uniqpages
LIMIT 1
FORMAT Vertical

Query id: ba19be7b-0891-4c07-a707-62e5e3eaa3c4

Row 1:
──────
domain: levelup.gitconnected.com
uri: /%EF%B8%8F-how-to-deploy-a-static-website-or-a-server-side-rendered-app-with-aws-amplify-hosting-806b4d620458
url: https://levelup.gitconnected.com/%EF%B8%8F-how-to-deploy-a-static-website-or-a-server-side-rendered-app-with-aws-amplify-hosting-806b4d620458?source=---------4-----------------------
etag: W/"1c8ed-8WUFxf2KDh2sBbP4zrGTJCdxo4I"
crawled_at: 2023-12-31 14:20:54
user_agent: Mozilla/5.0 (X11; Linux x86_64; Testbot/1.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.88 Safari/537.36
resp_code: 200
nei_uris: ['https://levelup.gitconnected.com/?source=post_page-----806b4d620458--------------------------------']
nei_titles: [['Level Up Coding','Level Up Coding']]

1 row in set. Elapsed: 0.001 sec. Processed 22.91 thousand rows, 209.44 MB (30.17 million rows/s., 275.83 GB/s.)
Peak memory usage: 15.02 KiB. Let’s check the stats view dd4a5ae26651 :) select domain, qnt from stats order by domain

SELECT
 domain,
 qnt
FROM stats
ORDER BY domain ASC

Query id: 9a2975ea-b52a-44ec-acae-698bb51f1973

┌─domain───────────────────┬───qnt─┐
│ habr.com │ 12941 │
│ levelup.gitconnected.com │ 9295 │
│ w3.org │ 665 │
│ wikipedia.org │ 6 │
└──────────────────────────┴───────┘

4 rows in set. Elapsed: 0.001 sec. … and in a couple of minutes dd4a5ae26651 :) select domain, qnt from stats order by domain

SELECT
 domain,
 qnt
FROM stats
ORDER BY domain ASC

Query id: 9a2975ea-b52a-44ec-acae-698bb51f1973

┌─domain───────────────────┬───qnt─┐
│ habr.com │ 12947 │
│ levelup.gitconnected.com │ 9316 │
│ w3.org │ 665 │
│ wikipedia.org │ 6 │
└──────────────────────────┴───────┘

4 rows in set. Elapsed: 0.001 sec. Conclusion A Refreshable Materialized View is quite handy and the most interesting feature of this release. It allows me to build useful data ETL pipelines in a very simple way just using SQL letting the ClickHouse to do the routine job for you. Let me know in the comments which of the new features excites you the most!

Refreshable Materialized Views and other features in ClickHouse Release 23.12

Who is this article for? The material is designed for developers with little experience with , and the main reason is to refresh their knowledge. Java Table of Contents: Variables and types It will be better to use these Switch and case. Try, catch, and finally. Lambdas, streams, optional? Record class Variables and types. Let’s start with the general and important things that you really should have learned earlier. Java, like many languages, has two types of variables: Primitives: Non-Primitive: Classes and arrays! Usually, we need to compare variables, but what methods should we use? “equals” or “== “ ? Let’s look at all the comparison methods available to us: == equal to
!= not equal to
> greater than
>= greater than or equal to
< less than
<= less than or equal to This tricky question was asked in the interview. We can use it with classes, but: // Integer != int
int a = 1, b = 1;
System.out.println(a == b); // true

int c = 1, j = c;
System.out.println(c == j); // true

Integer ai = Integer.valueOf(1), bi = Integer.valueOf(1);
System.out.println(ai == bi); // true 

Integer ci = Integer.valueOf(128), ji = Integer.valueOf(128);
System.out.println(ci == ji); // false
/* You can always count on the fact that 
* for values between -128 and 127, 
* you get the identical Integer objects after autoboxing, 
* and on some implementations you might get identical objects
* even for higher values.
*/ It’s important to learn that the Integer class is not a primitive value because it is a regular class. Class is the root of the class hierarchy. Every class has as a superclass. All objects, including arrays, implement the methods of this class. Object Object The “==” operator compares the values of two object references to see if they refer to the same thing. For an object, we should use “equals”: // Indicates whether some other object is "equal to" this one.
public boolean equals(Object obj) Or interface for natural ordering (if you need to sort your collection with your own type of object): Comparable public class HugePoint implements Comparable<HugePoint> {

 // same as before

 @Override
 public int compareTo(HugePoint otherHugePoint) {
 return Integer.compare(getSize(), otherHugePoint.getSize());
 }

} The interface defines a method: Comparator compare(arg1, arg2) public class HugePointComparator implements Comparator<HugePoint> {

 @Override
 public int compare(HugePoint firstPoint, HugePoint secondPoint) {
 return Integer.compare(firstPoint.getSize(), secondPoint.getSize());
 }

} It’s easy to use Java 8+ this way: Comparator<Person> byAge = Comparator.comparing(Person::getAge);

Comparator byAge = (Person person1, Person person2) -> 
 Integer.compare(person1.getAge(), person2.getAge()); Which one do you need to use and when? I would recommend using “Comparable” interface for ordering (if you have a sorting method, etc.), and “Comparator” if you need to compare objects by a special field. It will be better to use these Date and time Why? For the current timestamp, just use . We don’t need to convert to milliseconds. Instant.now() // Instant class, one of the main classes of the Date-Time API, encapsulates a point on the timeline.
Instant.now();
Instant now = Instant.parse("2021-02-09T11:19:42.12Z");
Instant before = now.minus(Duration.ofDays(1)); For the local date format use the following: // LocalDateTime is an immutable date-time object 
// that represents a date-time, often viewed 
// as year-month-day-hour-minute-second. 
LocalDateTime.now();
LocalDateTime.of(2001, Month.FEBRUARY, 10, 03, 01); UUID // uuid
UUID uuid = UUID.randomUUID();
UUID uuid = new UUID(mostSignificant64Bits, leastSignificant64Bits); Random // random for int
int randomWithMathRandom = (int) ((Math.random() * (max - min)) + min);

// or easy way
Random random = new Random();
int randomWithNextInt = random.nextInt(); Switch and case. Try, catch, and finally When we have too many conditions, and they are all tied to the same type of variable in “if-then-else,” it is worth using a switch-case. // case 
int expression = 9;
switch(expression) {
 case 2:
 System.out.println("Small Size");
 break;

 case 3:
 System.out.println("Large Size");
 break;
 
 // default case
 default:
 System.out.println("Unknown Size");
} Also, up Java to version 19 or more, and we can use the expression: Day day = Day.WEDNESDAY;
var resultDay = switch (day) {
 case MONDAY, FRIDAY, SUNDAY -> 6;
 case TUESDAY -> 7;
 case THURSDAY, SATURDAY -> 8;
 case WEDNESDAY -> 9;
 default -> throw new IllegalStateException("Invalid day: " + day);
 } 

System.out.println(resultDay); Don’t forget to use try/catch with methods that can throw exceptions. Try/catch and try with resources: // old
public int find(String playerFile) {
 try {
 Scanner contents = new Scanner(new File(playerFile));
 return Integer.parseInt(contents.nextLine());
 } catch (FileNotFoundException noFile) {
 throw new IllegalArgumentException("Couldn't find the file");
 }
}

// with resources
public int find(String playerFile) {
 try (Scanner contents = new Scanner(new File(playerFile))) {
 return Integer.parseInt(contents.nextLine());
 } catch (FileNotFoundException e ) {
 logger.warn("Couldn't find the file");
 return 0;
 }
}

// don't do it!
public int find(String playerFile) {
 try {
 // action
 } catch (Exception e) {} // <== catch and swallow
 return 0;
} Use , especially with channels: finally // close it!
public int find(String playerFile) throws FileNotFoundException {
 Scanner contents = null;

 try {
 contents = new Scanner(new File(playerFile));
 return Integer.parseInt(contents.nextLine());
 } finally {
 if (contents != null) {
 contents.close();
 }
 }
}

// Always close it!
public int find(String playerFile){
 MessageChannel channel = buildChannel(port);
 try {
 // do some action with channel
 } finally {
 channel.close(); // close!
 }
} Lambdas, streams, optional? The main reason for switching to Java 8 and higher is to be able to work with threads, streams, and functional interfaces. In this article, we will cover only working with streams, and we will deal with threads on the next page. First point — collections: Also, it would be good to go through the algorithms’ complexity table. I strongly recommend using this link: or the full article . gist here Let’s analyze the two approaches and see the difference. // old way: 
List<String> old = new ArrayList<>();
old.add("one");

// new way:
List<String> list = Arrays.asList("one", "two");
List<String> list = List.of("one", "two", "three");
Set<String> set = Set.of("one", "two", "three"); We can simplify working with the map. // old:
HashMap<Integer, String> hm = new HashMap<Integer, String>();
hm.put(1, "foo");

// new:
Map<String, String> map = Map.of("foo", "one", "bar", "two"); As you know, we have only two types of operations: and operations. intermediate terminal // Intermediate Operations
var stream = ...;
stream.filter();
stream.map();
stream.flatMap();
stream.distinct();
stream.sorted();
stream.peek();
stream.limit();
stream.skip();


// Terminal
stream.reduce();
stream.forEach();
stream.min();
stream.max();
stream.anyMatch();
stream.allMatch();
stream.noneMatch();
stream.findAny();
stream.findFirst();
stream.toArray();
stream.collect();
stream.count();
stream.forEachOrdered(); Just code: // Java 7 way
ArrayList results = new ArrayList(); 
for (Score score: scores) { 
 if (score.getVal() > 10) { 
 results.add(score.getVal()); 
 } 
} 
System.out.println(results);

// Java 8+ way
ArrayList results = scores.stream()
 .filter(score -> score.getVal() > 10)
 .collect(Collectors.toList()); 

System.out.println(results); If you have a duplicate code, just use functional interfaces: // Functional 
Consumer<Integer> consumer = (n) -> { System.out.println(n); };
numbers.forEach(consumer); Throwing exceptions every time an object is not found is not a good idea; you should use the “Optional” class for this: var empty = Optional.empty();
empty.isPresent(); // false

var notEmpty = Optional.of(name);
notEmpty.isPresent(); // true

String name = null;
Optional<String> opt = Optional.ofNullable(name);
opt.isPresent(); // false

String name = null;
String result = Optional.ofNullable(nullName).orElse("Default");

// get result
var name = Optional.of("Name");
name.get(); And if you really need to throw an exception, you should use “orElseThrow”: String name = Optional.ofNullable(name)
 .orElseThrow(IllegalArgumentException::new);

// throw NoSuchElementException.class
Optional.ofNullable(name).orElseThrow(); Record classes A typical situation: API had been written with “none thread safe” methods, and we didn’t know about the magic inside the library. What exactly do I mean? Any variables are mutable by default, which means we can change the value they hold. We don’t have read-only methods for classes inside; we can change them inside any threads: public class TestObject {
 private String string;
 // public contructor 
 // getters and setters
} In action: // create new object
ExecutorService executor = Executors.newFixedThreadPool(10);
var testObject = new UsefulObject();

executor.submit(() -> testObject.setTestString("test_1"));
executor.submit(() -> testObject.setTestString("test_2"));
executor.submit(() -> testObject.setTestString("test_3"));
executor.submit(() -> testObject.setTestString("test_4")); And what about the result? // the result might be anything!
// test_1 or test_2
// or test_3
System.out.println(testObject.getTestString()); . They are immutable classes and are implicitly classes, which means they can’t be extended. Just use a record class instead of a class: Record classes are special classes that act as transparent carriers for immutable data final record MainObject(int x) { } The compiler implicitly provides the constructor, getters, & , and . equals hashCode toString public final class MainObject {

 private final int x;

 public Rectangle(int x) {
 this.x = x;
 }

 double x() { return this.x; }
 // Implementation of equals() and hashCode(), which specify
 // that two record objects are equal if they
 // are of the same type and contain equal field values.
 public boolean equals...
 public int hashCode...
 // An implementation of toString() that returns a string
 // representation of all the record class's fields,
 // including their names.
 public String toString() {...}
} If we need to share the class now, we can do it without synchronization. That’s it for the first part! Thank you, and good luck! Notes Java primitives https://docs.oracle.com/javase/tutorial/java/nutsandbolts/datatypes.html Class object https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html How we can work with collections after Java 7: https://docs.oracle.com/javase/8/docs/technotes/guides/collections/overview.html Java intermediate and terminal operation: https://javaconceptoftheday.com/java-8-stream-intermediate-and-terminal-operations/

Java Essentials: A Quick Guide for Refreshing Developers' Knowledge

In today's digital age, technology has transformed the way we live and work, leading to excessive use that can take a toll on our mental and physical health. However, wellness retreats provide a much-needed break from the "digital grind," offering an opportunity to disconnect, recharge, and prioritize mental and physical health. Wellness retreats are immersive experiences that focus on delivering a general sense of well-being and can be tailored to different needs and interests. They range from yoga and meditation retreats to wellness and spa retreats, located in secluded natural environments or bustling urban areas, and can last from a few days to several weeks. Retreats offer a range of activities, from mindfulness practices and fitness classes to healthy cooking workshops and spa treatments, promoting mindfulness and relaxation. They can also foster personal growth and connect individuals with like-minded people. There are wellness retreats offering everything between yoga and meditation, hot springs spa, wellness sailing cruises, and more. Choosing the right wellness retreat can be a daunting task, but it is important to research and select one that aligns with your goals and interests. Choosing the Right Wellness Retreat Personal preferences, such as location, duration, and budget, as well as the specific programs and activities offered at each retreat. Some retreats may focus more on physical fitness, while others may prioritize mental health and mindfulness practices. It's important to consider your goals and what you hope to achieve from the retreat. Additionally, it's a good idea to research the retreat's accommodations and amenities to ensure that they align with your comfort level and preferences. For example, some retreats may offer more basic accommodations, while others may provide luxury accommodations and spa treatments. It's also helpful to read reviews and testimonials from previous retreat participants to get a sense of their experiences and the overall quality of the retreat. This can give you a better idea of what to expect and whether the retreat is right for you. Popular Wellness Retreat Destinations I went ahead and asked multiple travel and wellness experts from HARO (Help a Reporter Out) and Qwoted, and this is what they had to say. A yoga retreat in Bali, where I spent a week practicing yoga, meditating, and exploring the island's beautiful natural landscapes. The retreat was led by knowledgeable and caring teachers who guided us through challenging but rewarding classes, and the daily schedule allowed plenty of time for relaxation and reflection. A weekend at a hot springs spa in California, where I soaked in healing mineral waters, enjoyed massages and other spa treatments, and indulged in healthy and delicious meals. The peaceful and serene surroundings made it easy to unwind and let go of stress and tension. -Lieu Dang, Marketing Manager at Ling App The Best Wellness Retreat is hands down The Haven Wellness Resort & Spa in Panama. Reason is because it has one of the nicest wellness retreats that I always recommend is in Boquete, Panama.  It’s a boutique spa complete with a yoga and meditation studio.  It’s a complete wellness center.  They only have a handful of rooms with a beautiful scenery.  I recommend the garden suite.  I have hosted several yoga retreats here. And the best Yoga retreat is Himalayan Institute in Honesdale. The beautiful grounds there give space for you to retreat within and deepen your practice.  My daughters and I have gone on personal yoga retreats her many times, and we always experience some type of growth and revelation in the sacred grounds. -Steph Ball-Mitchell from Online Yoga School My name is Val Streif, and I work for GetMyBoat, a boat rental marketplace with a mobile app. Think "Airbnb," but for boat rentals and charters. Our mission is to make all types of on-the-water experiences more accessible worldwide. Regarding wellness, boating might not be the first thing that comes to mind, but you'd be surprised at the therapeutic offerings available. Everything from this plant-based wellness sailing cruise to the Bahamas to stand-up paddleboard yoga classes, to spa and massages on a private yacht, there are many wonderful, relaxing ways to enjoy the water on your travels in 2023. You can find and book these experiences right on your phone with our app! -Val Streif from GetMyBoat My number one spot for relaxation is Bali, Indonesia - Bali has a thriving wellness culture, and it's no surprise that there are many yoga retreats on this Indonesian island. The beautiful scenery, including rice paddies, mountains, and beaches, make it an ideal place to practice yoga and meditation. There are many world-class retreat centers in Bali, such as the Yoga Barn, Radiantly Alive, and Soulshine Bali. -Sam Helmy from PointsPanda Conclusion Wellness retreats offer a much-needed break from the demands of modern life and can provide an opportunity to prioritize mental and physical health. By disconnecting from technology and engaging in mindfulness practices, physical activity, and healthy eating, participants can improve their overall well-being and gain a fresh perspective on life. When choosing a retreat, it's important to consider factors such as the type of retreat, location, duration, price, and accommodations to ensure a positive experience.

Escape the Digital Grind: How Wellness Retreats Offer a Refreshing Break

What's Next for AI: Interpreting Anthropic CEO's Vision

Què hi ha a continuació per a la IA: interpretar la visió del CEO antròpic

Co bude dál pro AI: Interpretace vize generálního ředitele společnosti Anthropic

Τι ακολουθεί για την AI: Ερμηνεύοντας το όραμα του CEO της Anthropic

¿Qué viene después en el mundo de la IA?: interpretación de la visión del director ejecutivo de Anthropic

AIの今後: Anthropic CEOのビジョンを解釈する

Nini ekoya sima pona AI: Ko interpréter Vision ya CEO Anthropic

AI-ийн дараагийн зүйл: Anthropic CEO-ийн алсын харааг тайлбарлах нь

Seo se Latelago bakeng sa AI: Go Hlatholla Pono ya CEO ya Anthropic

Leswi landzelaka eka AI: Ku hlamusela Xivono xa CEO wa Anthropic

Що далі для ШІ: інтерпретація бачення генерального директора Anthropic

AI uchun navbatdagi narsa: Antropik bosh direktorning qarashlarini talqin qilish

人工智能的下一步：解读 Anthropic 首席执行官的愿景

Visualizing PostgreSQL Data With Angular To Analyze What Passengers Find Rude to Do During a Flight

RunLoops impact on asynchronous tasks I am Boris Dobretsov, and some time ago I published my first article - Understanding Parallel Programming: A Guide for Beginners. https://hackernoon.com/understanding-parallel-programming-a-guide-for-beginners?embedable=true In that article, I introduced basic concepts such as "processes" and "threads" and explained in simple terms what a processor, operating system, process, and thread are. Today, we will elaborate further on RunLoops and their impact on asynchronous tasks. But first, let's refresh our knowledge of what a RunLoop is and what it is responsible for. A RunLoop helps asynchronous tasks run at the right time without blocking or interfering with the main thread. It functions as a cycle of event handling, used to schedule tasks and coordinate incoming events. Its purpose is to keep the thread active when there is work to do and put it to sleep when there is none. As we know from the previous article, there are several main types of architecture for code organization: Synchronous single-threaded


Asynchronous single-threaded


Synchronous multi-threaded


Asynchronous multi-threaded Some of these are simpler, while others are designed to run several tasks (competing tasks) at the same time, making the development process more efficient and multifunctional. The most commonly used architecture in iOS application development is the asynchronous multi-threaded model. It is important to understand how to interact with these models and what to do to prevent overloading. That is why in this article we are going to discuss RunLoops impact on asynchronous tasks. As we also know from the previous article, asynchronous tasks can be paused mid-execution and resumed later. But who decides when to put a task on hold and when to resume it? It’s actually the task itself that makes this decision. This is because asynchronous tasks consist of two parts: the first starts the task, and the second executes asynchronously in response to a specific event. The latter part is added to a source for the RunLoop and is checked on each loop iteration. If the specified event occurs, the task proceeds. A basic example of an asynchronous task is a timer. Let me share the code which which demonstrates this idea: Timer.scheduledTimer(withTimeInterval: 0.25, repeats: true) { timer in    
  print("tick")
} In the above example, you can see the code which starts a timer that runs every quarter of a second, outputting "tick" to the console. The first part of the asynchronous task is creating the timer, and the second part is passing the block to the scheduled Timer method. The task is single-threaded: both the timer setup and block execution happen in the same thread. However, it is asynchronous since the block doesn’t execute immediately but after a delay that allows the thread to do other work in the meantime. This illustrates the interconnection between asynchronous tasks and the RunLoop. The timer block will be called every quarter second, with the RunLoop responsible for this condition. However, if the thread is busy with a long-running task and the iteration cannot be completed within 0.25 seconds, the timer's block will be delayed. Let's modify the example so that the block outputs the current time: Timer.scheduledTimer(withTimeInterval: 0.25, repeats: true) { timer in    
  print(Date())
} Let’s see what will be the console output: 2017-09-26 05:13:16 +0000
2017-09-26 05:13:16 +0000
2017-09-26 05:13:16 +0000
2017-09-26 05:13:16 +0000
2017-09-26 05:13:17 +0000
2017-09-26 05:13:17 +0000
2017-09-26 05:13:17 +0000
2017-09-26 05:13:17 +0000
2017-09-26 05:13:18 +0000
2017-09-26 05:13:18 +0000
2017-09-26 05:13:18 +0000
2017-09-26 05:13:18 +0000 In this case,  the timer goes off four times per second. Let's now add another asynchronous task that runs once every second and takes up the thread by waiting to be executed: Timer.scheduledTimer(withTimeInterval: 0.25, repeats: true) { timer in    
  print(Date())
}

Timer.scheduledTimer(withTimeInterval: 1, repeats: true) { timer in    
  sleep(1)
} Console output: 2017-09-26 05:17:33 +0000
2017-09-26 05:17:34 +0000
2017-09-26 05:17:34 +0000
2017-09-26 05:17:34 +0000
2017-09-26 05:17:35 +0000
2017-09-26 05:17:35 +0000
2017-09-26 05:17:36 +0000
2017-09-26 05:17:36 +0000
2017-09-26 05:17:36 +0000
2017-09-26 05:17:37 +0000
2017-09-26 05:17:37 +0000
2017-09-26 05:17:38 +0000
2017-09-26 05:17:38 +0000
2017-09-26 05:17:38 +0000
2017-09-26 05:17:39 +0000
2017-09-26 05:17:39 +0000
2017-09-26 05:17:40 +0000
2017-09-26 05:17:40 +0000 As you can see, the timer now triggers at irregular intervals, sometimes twice, sometimes three times per second. This happened because the thread was too busy running other code to process the timer in time. This example perfectly illustrates that there is no magic in asynchronous code. It relies on the RunLoop and competes with other tasks in the thread. My advice is: don’t rely on miracles when planning asynchronous tasks; consider whether they can be executed on time. If there is a likelihood that thread resources may be insufficient to run all tasks, consider offloading tasks to separate threads where they won’t face interference. Conclusion In the next article, we will talk about the main approaches to building multi-threaded code in iOS and will touch upon the concepts of Thread, Grand Central Dispatch (GCD), and Operation. Stay tuned! RunLoops impact on asynchronous tasks I am Boris Dobretsov, and some time ago I published my first article - Understanding Parallel Programming: A Guide for Beginners. Understanding Parallel Programming: A Guide for Beginners . Understanding Parallel Programming: A Guide for Beginners https://hackernoon.com/understanding-parallel-programming-a-guide-for-beginners?embedable=true https://hackernoon.com/understanding-parallel-programming-a-guide-for-beginners?embedable=true In that article, I introduced basic concepts such as " processes " and " threads " and explained in simple terms what a processor, operating system, process, and thread are. processes threads Today, we will elaborate further on RunLoops and their impact on asynchronous tasks. RunLoops But first, let's refresh our knowledge of what a RunLoop is and what it is responsible for. RunLoop A RunLoop helps asynchronous tasks run at the right time without blocking or interfering with the main thread. It functions as a cycle of event handling, used to schedule tasks and coordinate incoming events. Its purpose is to keep the thread active when there is work to do and put it to sleep when there is none. A RunLoop helps asynchronous tasks run at the right time without blocking or interfering with the main thread. It functions as a cycle of event handling, used to schedule tasks and coordinate incoming events. Its purpose is to keep the thread active when there is work to do and put it to sleep when there is none. RunLoop As we know from the previous article, there are several main types of architecture for code organization: Synchronous single-threaded Asynchronous single-threaded Synchronous multi-threaded Asynchronous multi-threaded Synchronous single-threaded Synchronous single-threaded Synchronous single-threaded Asynchronous single-threaded Asynchronous single-threaded Asynchronous single-threaded Synchronous multi-threaded Synchronous multi-threaded Synchronous multi-threaded Asynchronous multi-threaded Asynchronous multi-threaded Asynchronous multi-threaded Some of these are simpler, while others are designed to run several tasks (competing tasks) at the same time, making the development process more efficient and multifunctional. The most commonly used architecture in iOS application development is the asynchronous multi-threaded model . It is important to understand how to interact with these models and what to do to prevent overloading. That is why in this article we are going to discuss RunLoops impact on asynchronous tasks . asynchronous multi-threaded model RunLoops impact on asynchronous tasks As we also know from the previous article, asynchronous tasks can be paused mid-execution and resumed later. But who decides when to put a task on hold and when to resume it? But who decides when to put a task on hold and when to resume it? It’s actually the task itself that makes this decision. This is because asynchronous tasks consist of two parts: the first starts the task, and the second executes asynchronously in response to a specific event. The latter part is added to a source for the RunLoop and is checked on each loop iteration. If the specified event occurs, the task proceeds. A basic example of an asynchronous task is a timer . Let me share the code which which demonstrates this idea: timer Timer.scheduledTimer(withTimeInterval: 0.25, repeats: true) { timer in    
  print("tick")
} Timer.scheduledTimer(withTimeInterval: 0.25, repeats: true) { timer in    
  print("tick")
} In the above example, you can see the code which starts a timer that runs every quarter of a second, outputting "tick" to the console. The first part of the asynchronous task is creating the timer, and the second part is passing the block to the scheduled Timer method. The task is single-threaded: both the timer setup and block execution happen in the same thread. However, it is asynchronous since the block doesn’t execute immediately but after a delay that allows the thread to do other work in the meantime. This illustrates the interconnection between asynchronous tasks and the RunLoop. The timer block will be called every quarter second, with the RunLoop responsible for this condition. However, if the thread is busy with a long-running task and the iteration cannot be completed within 0.25 seconds, the timer's block will be delayed. Let's modify the example so that the block outputs the current time: Timer.scheduledTimer(withTimeInterval: 0.25, repeats: true) { timer in    
  print(Date())
} Timer.scheduledTimer(withTimeInterval: 0.25, repeats: true) { timer in    
  print(Date())
} Let’s see what will be the console output: 2017-09-26 05:13:16 +0000
2017-09-26 05:13:16 +0000
2017-09-26 05:13:16 +0000
2017-09-26 05:13:16 +0000
2017-09-26 05:13:17 +0000
2017-09-26 05:13:17 +0000
2017-09-26 05:13:17 +0000
2017-09-26 05:13:17 +0000
2017-09-26 05:13:18 +0000
2017-09-26 05:13:18 +0000
2017-09-26 05:13:18 +0000
2017-09-26 05:13:18 +0000 2017-09-26 05:13:16 +0000
2017-09-26 05:13:16 +0000
2017-09-26 05:13:16 +0000
2017-09-26 05:13:16 +0000
2017-09-26 05:13:17 +0000
2017-09-26 05:13:17 +0000
2017-09-26 05:13:17 +0000
2017-09-26 05:13:17 +0000
2017-09-26 05:13:18 +0000
2017-09-26 05:13:18 +0000
2017-09-26 05:13:18 +0000
2017-09-26 05:13:18 +0000 In this case,  the timer goes off four times per second. Let's now add another asynchronous task that runs once every second and takes up the thread by waiting to be executed: Timer.scheduledTimer(withTimeInterval: 0.25, repeats: true) { timer in    
  print(Date())
}

Timer.scheduledTimer(withTimeInterval: 1, repeats: true) { timer in    
  sleep(1)
} Timer.scheduledTimer(withTimeInterval: 0.25, repeats: true) { timer in    
  print(Date())
}

Timer.scheduledTimer(withTimeInterval: 1, repeats: true) { timer in    
  sleep(1)
} Console output: 2017-09-26 05:17:33 +0000
2017-09-26 05:17:34 +0000
2017-09-26 05:17:34 +0000
2017-09-26 05:17:34 +0000
2017-09-26 05:17:35 +0000
2017-09-26 05:17:35 +0000
2017-09-26 05:17:36 +0000
2017-09-26 05:17:36 +0000
2017-09-26 05:17:36 +0000
2017-09-26 05:17:37 +0000
2017-09-26 05:17:37 +0000
2017-09-26 05:17:38 +0000
2017-09-26 05:17:38 +0000
2017-09-26 05:17:38 +0000
2017-09-26 05:17:39 +0000
2017-09-26 05:17:39 +0000
2017-09-26 05:17:40 +0000
2017-09-26 05:17:40 +0000 2017-09-26 05:17:33 +0000
2017-09-26 05:17:34 +0000
2017-09-26 05:17:34 +0000
2017-09-26 05:17:34 +0000
2017-09-26 05:17:35 +0000
2017-09-26 05:17:35 +0000
2017-09-26 05:17:36 +0000
2017-09-26 05:17:36 +0000
2017-09-26 05:17:36 +0000
2017-09-26 05:17:37 +0000
2017-09-26 05:17:37 +0000
2017-09-26 05:17:38 +0000
2017-09-26 05:17:38 +0000
2017-09-26 05:17:38 +0000
2017-09-26 05:17:39 +0000
2017-09-26 05:17:39 +0000
2017-09-26 05:17:40 +0000
2017-09-26 05:17:40 +0000 As you can see, the timer now triggers at irregular intervals, sometimes twice, sometimes three times per second. This happened because the thread was too busy running other code to process the timer in time. This example perfectly illustrates that there is no magic in asynchronous code. It relies on the RunLoop and competes with other tasks in the thread. My advice is: don’t rely on miracles when planning asynchronous tasks; consider whether they can be executed on time. If there is a likelihood that thread resources may be insufficient to run all tasks, consider offloading tasks to separate threads where they won’t face interference. Conclusion In the next article, we will talk about the main approaches to building multi-threaded code in iOS and will touch upon the concepts of Thread , Grand Central Dispatch (GCD) , and Operation . Stay tuned! Thread Grand Central Dispatch (GCD) Operation

Understanding Parallel Programming: A Guide for Beginners, Part II

When browsing the web, you may occasionally encounter an error message that reads, "504 Gateway Timeout." While it might seem cryptic at first, this error is more common than you think. If you're wondering what it is, why it happens, and how to fix it, this guide has got you covered. What Is a 504 Gateway Timeout Error? A 504 Gateway Timeout Error occurs when a server acting as a gateway or proxy doesn't receive a timely response from an upstream server. In simpler terms, it means the server you're trying to access is taking too long to respond. This error is a part of the HTTP status code family, which communicates the state of your connection to a server. A "504" indicates that the server acting as an intermediary (like a web host or content delivery network) could not complete your request because the upstream server is unresponsive. What Causes a 504 Gateway Timeout Error? Understanding the causes of this error is key to troubleshooting. Here are the most common reasons: 1. Server Overload The upstream server is overwhelmed with traffic or resource demands. Websites experiencing sudden surges in visitors (e.g., during sales or viral events) often encounter this issue. 2. Poor Server Communication The gateway server and upstream server fail to communicate properly due to misconfigured settings or network interruptions. 3. DNS Issues If DNS (Domain Name System) records are outdated or misconfigured, servers might fail to locate each other. 4. Firewall Restrictions Firewalls may block requests from a specific IP address, thinking it's malicious, causing communication breakdowns. 5. Server Timeout Settings If the timeout period for a server request is too short, slower upstream servers may not respond in time, triggering a 504 error. How to Fix a 504 Gateway Timeout Error Fixing this error depends on whether you're a website visitor or the owner of the website. For Website Visitors: Refresh the Page


Sometimes, a temporary issue on the server resolves itself. Refreshing can help.



Check Your Internet Connection


Ensure your connection is stable. Disconnect and reconnect to verify.



Try Another Browser or Device


Use a different browser or device to rule out local issues.



Clear Your Browser Cache


Cached files can sometimes cause errors. Clear your cache and cookies.



Check if the Website Is Down

Use a tool like CheckIfWebsiteDown to confirm if the issue is global. For Website Owners or Administrators: Check Server Logs


Analyze server logs to identify where the communication breakdown occurred.



Restart Your Servers


Restarting the gateway or upstream server may resolve temporary glitches.



Update DNS Records


Ensure your DNS records are updated and correctly configured.



Increase Timeout Limits


Extend timeout periods in your server settings to allow upstream servers more time to respond.



Optimize Server Performance


Use load balancers or upgrade your hosting plan to handle more traffic efficiently.



Disable Firewall or Proxy Blocks


Review firewall rules to ensure legitimate requests aren’t being blocked.



Contact Your Hosting Provider

If the issue persists, reach out to your hosting provider for support. Preventing 504 Gateway Timeout Errors Proactive measures can help prevent future occurrences. Here’s what you can do: Monitor Server Health: Regularly check your servers for high resource usage or connectivity issues.
Use a Content Delivery Network (CDN): CDNs can distribute traffic and reduce server strain.
Optimize Your Website: Minimize heavy scripts and ensure faster loading times.
Conduct Regular DNS Checks: Keep DNS records updated and resolve any configuration errors promptly. Common Variations of the 504 Error Depending on the browser or server, the error message might look different: "HTTP 504 Gateway Timeout"
"504 Error – The server didn't respond in time"
"504 Gateway Timeout – nginx"
"Gateway Timeout Error – Cloudflare" While the phrasing varies, the issue remains the same: delayed communication between servers. When Should You Seek Professional Help? If you've tried the above fixes and still experience the error frequently, it’s time to consult a professional. Persistent 504 errors could indicate underlying server misconfigurations or hardware issues requiring expert attention. For website visitors, if the error persists on multiple devices and browsers, contact the website owner or administrator. Key Takeaways A 504 Gateway Timeout Error occurs when servers fail to communicate within a set timeframe.
Causes range from server overload to DNS misconfigurations.
Fixes include refreshing the page, checking DNS settings, and optimizing server performance.
Regular monitoring and proactive measures can prevent these errors from happening frequently. The 504 Gateway Timeout Error may seem daunting, but with a clear understanding and the right troubleshooting steps, you can resolve it efficiently. Whether you're a visitor encountering the error or a website owner managing traffic, this guide equips you with actionable solutions to tackle the issue. When browsing the web, you may occasionally encounter an error message that reads, "504 Gateway Timeout." While it might seem cryptic at first, this error is more common than you think. If you're wondering what it is, why it happens, and how to fix it, this guide has got you covered. What Is a 504 Gateway Timeout Error? What Is a 504 Gateway Timeout Error? A 504 Gateway Timeout Error occurs when a server acting as a gateway or proxy doesn't receive a timely response from an upstream server. In simpler terms, it means the server you're trying to access is taking too long to respond. This error is a part of the HTTP status code family, which communicates the state of your connection to a server. A "504" indicates that the server acting as an intermediary (like a web host or content delivery network) could not complete your request because the upstream server is unresponsive. What Causes a 504 Gateway Timeout Error? Understanding the causes of this error is key to troubleshooting. Here are the most common reasons: 1. Server Overload The upstream server is overwhelmed with traffic or resource demands. The upstream server is overwhelmed with traffic or resource demands. Websites experiencing sudden surges in visitors (e.g., during sales or viral events) often encounter this issue. Websites experiencing sudden surges in visitors (e.g., during sales or viral events) often encounter this issue. 2. Poor Server Communication The gateway server and upstream server fail to communicate properly due to misconfigured settings or network interruptions. The gateway server and upstream server fail to communicate properly due to misconfigured settings or network interruptions. 3. DNS Issues If DNS (Domain Name System) records are outdated or misconfigured, servers might fail to locate each other. If DNS (Domain Name System) records are outdated or misconfigured, servers might fail to locate each other. 4. Firewall Restrictions Firewalls may block requests from a specific IP address, thinking it's malicious, causing communication breakdowns. Firewalls may block requests from a specific IP address, thinking it's malicious, causing communication breakdowns. 5. Server Timeout Settings If the timeout period for a server request is too short, slower upstream servers may not respond in time, triggering a 504 error. Settings If the timeout period for a server request is too short, slower upstream servers may not respond in time, triggering a 504 error. How to Fix a 504 Gateway Timeout Error How to Fix a 504 Gateway Timeout Error Fixing this error depends on whether you're a website visitor or the owner of the website. For Website Visitors: For Website Visitors: Refresh the Page


Sometimes, a temporary issue on the server resolves itself. Refreshing can help. Check Your Internet Connection


Ensure your connection is stable. Disconnect and reconnect to verify. Try Another Browser or Device


Use a different browser or device to rule out local issues. Clear Your Browser Cache


Cached files can sometimes cause errors. Clear your cache and cookies. Check if the Website Is Down

Use a tool like CheckIfWebsiteDown to confirm if the issue is global. Refresh the Page Sometimes, a temporary issue on the server resolves itself. Refreshing can help. Refresh the Page Sometimes, a temporary issue on the server resolves itself. Refreshing can help. Sometimes, a temporary issue on the server resolves itself. Refreshing can help. Sometimes, a temporary issue on the server resolves itself. Refreshing can help. Check Your Internet Connection Ensure your connection is stable. Disconnect and reconnect to verify. Check Your Internet Connection Ensure your connection is stable. Disconnect and reconnect to verify. Ensure your connection is stable. Disconnect and reconnect to verify. Ensure your connection is stable. Disconnect and reconnect to verify. Try Another Browser or Device Use a different browser or device to rule out local issues. Try Another Browser or Device Use a different browser or device to rule out local issues. Use a different browser or device to rule out local issues. Use a different browser or device to rule out local issues. Clear Your Browser Cache Cached files can sometimes cause errors. Clear your cache and cookies. Clear Your Browser Cache Cached files can sometimes cause errors. Clear your cache and cookies. Cached files can sometimes cause errors. Clear your cache and cookies. Cached files can sometimes cause errors. Clear your cache and cookies. Check if the Website Is Down Use a tool like CheckIfWebsiteDown to confirm if the issue is global. Check if the Website Is Down Use a tool like CheckIfWebsiteDown to confirm if the issue is global. Use a tool like CheckIfWebsiteDown to confirm if the issue is global. CheckIfWebsiteDown For Website Owners or Administrators: For Website Owners or Administrators: Check Server Logs


Analyze server logs to identify where the communication breakdown occurred. Restart Your Servers


Restarting the gateway or upstream server may resolve temporary glitches. Update DNS Records


Ensure your DNS records are updated and correctly configured. Increase Timeout Limits


Extend timeout periods in your server settings to allow upstream servers more time to respond. Optimize Server Performance


Use load balancers or upgrade your hosting plan to handle more traffic efficiently. Disable Firewall or Proxy Blocks


Review firewall rules to ensure legitimate requests aren’t being blocked. Contact Your Hosting Provider

If the issue persists, reach out to your hosting provider for support. Check Server Logs Analyze server logs to identify where the communication breakdown occurred. Check Server Logs Analyze server logs to identify where the communication breakdown occurred. Analyze server logs to identify where the communication breakdown occurred. Analyze server logs to identify where the communication breakdown occurred. Restart Your Servers Restarting the gateway or upstream server may resolve temporary glitches. Restart Your Servers Restarting the gateway or upstream server may resolve temporary glitches. Restarting the gateway or upstream server may resolve temporary glitches. Restarting the gateway or upstream server may resolve temporary glitches. Update DNS Records Ensure your DNS records are updated and correctly configured. Update DNS Records Ensure your DNS records are updated and correctly configured. Ensure your DNS records are updated and correctly configured. Ensure your DNS records are updated and correctly configured. Increase Timeout Limits Extend timeout periods in your server settings to allow upstream servers more time to respond. Increase Timeout Limits Extend timeout periods in your server settings to allow upstream servers more time to respond. Extend timeout periods in your server settings to allow upstream servers more time to respond. Extend timeout periods in your server settings to allow upstream servers more time to respond. Optimize Server Performance Use load balancers or upgrade your hosting plan to handle more traffic efficiently. Optimize Server Performance Use load balancers or upgrade your hosting plan to handle more traffic efficiently. Use load balancers or upgrade your hosting plan to handle more traffic efficiently. Use load balancers or upgrade your hosting plan to handle more traffic efficiently. Disable Firewall or Proxy Blocks Review firewall rules to ensure legitimate requests aren’t being blocked. Disable Firewall or Proxy Blocks Review firewall rules to ensure legitimate requests aren’t being blocked. Review firewall rules to ensure legitimate requests aren’t being blocked. Review firewall rules to ensure legitimate requests aren’t being blocked. Contact Your Hosting Provider If the issue persists, reach out to your hosting provider for support. Contact Your Hosting Provider If the issue persists, reach out to your hosting provider for support. If the issue persists, reach out to your hosting provider for support. Preventing 504 Gateway Timeout Errors Preventing 504 Gateway Timeout Errors Proactive measures can help prevent future occurrences. Here’s what you can do: Monitor Server Health: Regularly check your servers for high resource usage or connectivity issues. Use a Content Delivery Network (CDN): CDNs can distribute traffic and reduce server strain. Optimize Your Website: Minimize heavy scripts and ensure faster loading times. Conduct Regular DNS Checks: Keep DNS records updated and resolve any configuration errors promptly. Monitor Server Health: Regularly check your servers for high resource usage or connectivity issues. Monitor Server Health: Use a Content Delivery Network (CDN): CDNs can distribute traffic and reduce server strain. Use a Content Delivery Network (CDN): Optimize Your Website: Minimize heavy scripts and ensure faster loading times. Optimize Your Website: Conduct Regular DNS Checks: Keep DNS records updated and resolve any configuration errors promptly. Conduct Regular DNS Checks: Common Variations of the 504 Error Common Variations of the 504 Error Depending on the browser or server, the error message might look different: "HTTP 504 Gateway Timeout" "504 Error – The server didn't respond in time" "504 Gateway Timeout – nginx" "Gateway Timeout Error – Cloudflare" "HTTP 504 Gateway Timeout" "HTTP 504 Gateway Timeout" "504 Error – The server didn't respond in time" "504 Error – The server didn't respond in time" "504 Gateway Timeout – nginx" "504 Gateway Timeout – nginx" "Gateway Timeout Error – Cloudflare" "Gateway Timeout Error – Cloudflare" While the phrasing varies, the issue remains the same: delayed communication between servers. When Should You Seek Professional Help? When Should You Seek Professional Help? If you've tried the above fixes and still experience the error frequently, it’s time to consult a professional. Persistent 504 errors could indicate underlying server misconfigurations or hardware issues requiring expert attention. For website visitors, if the error persists on multiple devices and browsers, contact the website owner or administrator. Key Takeaways Key Takeaways A 504 Gateway Timeout Error occurs when servers fail to communicate within a set timeframe. Causes range from server overload to DNS misconfigurations. Fixes include refreshing the page, checking DNS settings, and optimizing server performance. Regular monitoring and proactive measures can prevent these errors from happening frequently. A 504 Gateway Timeout Error occurs when servers fail to communicate within a set timeframe. Causes range from server overload to DNS misconfigurations. Fixes include refreshing the page, checking DNS settings, and optimizing server performance. Regular monitoring and proactive measures can prevent these errors from happening frequently. The 504 Gateway Timeout Error may seem daunting, but with a clear understanding and the right troubleshooting steps, you can resolve it efficiently. Whether you're a visitor encountering the error or a website owner managing traffic, this guide equips you with actionable solutions to tackle the issue.

Stories, News & Mentions about REFRENS

Refrens’s Stories on HackerNoon

Refrens's News & Mentions