A for statement looks as follows:When a for loop executes, the following occurs: 1. NodeJS server has an internal component referred to as the EventLoop which is an infinite loop that receives requests and processes them. Execute a block of code for one time and check the condition. When the persistent volume is set up, use SSH to connect it to one of the app’s containers. in libuv, the signals (internal or external) are intercepted in uv__signal_handler.. After all the processing, it returns from the signal stack, which causes the faulty instruction to be re-entered, leading to the tight loop. This expression usually initializes one or more loop counters, but the syntax allows an expression of any degree of complexity. Infinite While Loops in Java, A loop that repeats indefinitely and never terminates is called an Infinite loop. ellerre 18 November 2020 14:32 #1. Due to my mistake, I find myself with node-red inaccessible. Thanks for contributing an answer to Stack Overflow! We can do this using securityContext in K8s deployment. It is important to be aware of infinite loops so you can avoid them. Statement 3 increases a value (i++) each time the code block in the loop has been executed. At Apify, we had this type of problem in a production application running inside a stateless Kubernetes (K8s) container. However, if the health check fails 4 times, it runs the GDB command and prints the stack trace. An infinite loop, as the name suggests, is a loop that will keep running forever. We hope you will find this article useful if you encounter an infinite loop in your Node.js application. This is node.js. When an Eb instrument plays the Concert F scale, what note do they start on? @Matty GC will actually occur many-many times while heap grows. On the first look I was thinking it keeps calling the handler but that was not the case. When Node.js starts, it initializes the event loop, processes the provided input script (or drops into the REPL, which is not covered in this document) which may make async API calls, schedule timers, or call process.nextTick(), then begins processing the event loop. Node.js will not be able to use the thread pool or async APIs and the event-loop activity will be suspended. With some basic knowledge of GDB and V8’s stack guard, you can reproduce the steps that cause the infinite loop and print the stack trace of your app’s code where it occurs. In our case, the infinite loop was caused by a third-party package. infinite loop in nodejs, easy to use, good performance. On the contrary, Running the infinite for loop caused memory leek and the process.nextTick throwed an Maximum call stack size exceeded error. What's the best time complexity of a queue that supports extracting the minimum? the command node-gyp configure create an infinite loop that eat all the cpu forever. In general using infinite loop of any kind in node.js is. This expression can also declare variables. In order to achieve asynchronicity, node uses an event loop. The root cause is a bad guard in gyp/pylib/gyp/input.py that doesn't take into account that '' in 'whatever' evaluates to True. I could setup a cron job to run the app at the specified time but I'd prefer to run it with node index.js and have it run constantly, doing nothing until it's the right day and time and then going back to "sleep" until the following day.. How do I achieve that? Finding nearest street name from selected point using ArcPy. Should I chose higher CPU/low bandwidth or slightly slower CPU/higher bandwidth? You can do a very basic setup of EFS by running the command below. The following diagram shows a simplified overview of the event loop’s order of operations. It also describes a set of guidelines to implement the event loop model, and other JavaScript features which might be associated with the event loop, such as Timers. To attach a persistent volume to your K8s pod, you can follow these steps. The code below attaches a breakpoint to the stack guard and prints the stack trace. I … UNSOLVED Infinite loop Technical Support. Launching Apify’s new billing system, pricing plans, team account, and notifications center, How Apify created custom APIs to track COVID-19 worldwide, Bypassing web scraping protection: get the most out of your proxies with shared IP address…, Upcoming Slack integration and news for August, Useful Docker Commands for Software Developers, Leveraging Docker Override and MinIO for local data development. The event queue is not a single queue, rather a collection of queues and heaps. As a Node.js developer with a basic knowledge of V8 and the underlying C++ code, you probably haven’t used GDB for debugging your Node.js applications. The GC never seems to kick in and in a few seconds it's consuming >1GB of memory. However, in production systems, this becomes much more complicated. First, run an infinite loop, then run the GDB command. PRO LT Handlebar Stem asks to tighten top handlebar screws first before bottom screws? As Node.js v0.10 has been released, setImmediate should be used as the first choice instead of process.nextTick when calling the recursive callback. Loading More Posts. You can see that the bash script does exactly the same as the HTTP liveness probe. So, when your production code suddenly peaks at 100% CPU, it’s tricky to find out where exactly it got stuck. But when you use the while loop you should take into account the increment for the next iteration. I have written a NodeJS app that calls an API and posts to an endpoint only on weekdays at a specific time. The bundled copy of GYP enters an infinite loop when it encounters a zero-length option so ensure those don't get through. Depending on how busy the CPU is, getting the current clock time may or may not complete within 1ms. When you write something to a stream node.js does that asynchronously: it sends the write request, queues information about sent request in the stream's internal data-structures and awaits the callback that would notify it about the completion. Statement 1 sets a variable before the loop starts (var i = 0). Edit: I tried both with v0.5.10 (unstable) and v0.4.12 (stable) and the unstable version performs a little bit better---the stable version just stops outputting to the console but continues to consume memory, whereas the stable version continues executing and consuming memory without pause. I'm wondering whether it's stable and safe enough to use in production after seeing this though. … e4e9873. Fixes: #744 R=@rvagg After installing it, let your application know about it by creating a StorageClass K8s resource. The memory consumption of this chunk of code kept low ( <10MB ) after running for about 15 mins on my computer. forEach() An alternative to for and for/in loops isArray.prototype.forEach(). Next, create a persistent volume and persistent volume claim.Note: Use FileSystemId as volumeHandle. I'm surprised setInterval doesn't work this way too; calling a function with a short delay causes the same memory leak. I have a node server that pulls info from a php server and sends it over where it needs to be through a Callback.Once or twice ad day the server gets stuck in an Infinite Loop and I think it's because I'm not properly handling the connection between the the php and node server. 10. How to create an infinite event loop (your program will never exit) first argument should be a function, the rest should be the functions' argument Node exits the event loop when there are no more callbacks to perform. Infinite Loop - a node js packge. Untrusted users set these conditions so for the purpose of this question please assume the infinite loop is unfixable. I'm wondering whether these are design issues in Node. By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy. To attach EFS as a persistent volume to your EKS cluster, launch the Amazon EFS CSI Driver. How exactly does process.nextTick() work? CPU goes up to 99.9% and the server just freezes. Colleagues don't congratulate me or cheer me on when I do good work. Infinite loops can occur in JavaScript and Java code that runs inside IBM Business Automation Workflow applications. In general, in most browsers there is an event loop for every browser tab, to make every process isolated and avoid a web page with infinite loops or heavy processing to block your entire browser. Infinite loop for Node.js. I am a beginner to commuting by bike and I find it very tiring. Why do electrons jump back after absorbing energy and moving to a higher energy level? Does healing an unconscious, dying player character restore only up to 1 hp unless they have been stabilised? If you are blocking event loop the callback will never be called (because incoming events are never processed) and auxiliary data structures queued in the stream will never be freed. Often termed as post-test loop. Most efficient and feasible non-rocket spacelaunch methods moving into the future? @WTK I agree with you here; the blocking call does impact execution speed too---roughly 1/6 as fast as comparable Python or Ruby code. Am I missing something? To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Event Loop is a single-threaded and semi-infinite loop. The reason why this is called a semi-infinite loop is that this actually quits at some point when there is no more work to be done. You can configure loop detection parameters in the 100Custom.xml file to detect infinite loops and optionally ending them. I can imagine that with long-running daemons under load a similar memory leak would occur, although I haven't tested it. This article describes the solution that worked for us. This ensures our health check script runs every 40 seconds, which is enough time to run HTTP probe 4 times every 5 seconds. You are blocking node.js event loop by never returning to it. If an object has a custom inspect function set and it returns the same output for different objects and those objects are compared using strict assert, an infinite loop is triggered because a loop is not well defined. I don't know if this is a bug with Node or V8, but if I run the following code the node process leaks memory. NodeJS memory consumption in an infinite loop, Podcast 302: Programming in PowerPoint can teach you a few things. TL;DR — We used a script based on this GitHub gist, which attaches the GNU debugger (GDB) to Node.js processes to print the leaking code’s stack trace. Finally, mount the persistent volume claim to the deployment. JavaScript closure inside loops – simple practical example. To learn more, see our tips on writing great answers. Is it my fitness level or my single-speed bicycle? But it can't collect things that are. Here is one example of an infinite loop in Visual Basic : dim x as integer do while x < 5 x = 1 x = x + 1 loop. Is there any way to break when the server freezes and then check the call stack to see what function is causing this? Easy to Use & Good Performance A helper for running tasks repeatly in Node.js. Infinite Loops. Yet another article about the Node.js Event-Loop Intro. This place in V8 is called the stack guard and we got the idea to use it from this GitHub gist (it includes an explanation of the whole script if you need to know more). Join Stack Overflow to learn, share knowledge, and build your career. But in case of Node.js, this will have the ability to keep the event loop completely busy that the whole application will become unresponsive to any new requests. To use this script in our app, we needed to edit the liveness probe in the K8s deployment specification as shown below. Callbacks are being called in an infinite loop whenever the main thread has finished its previous task, hence the name ‘event loop’. How do digital function generators generate precise frequencies? However, in production systems, this becomes much more complicated. But be careful: since we’re using a debugger here, we need to allow processes using process trace with the SYS_PTRACE flag. We then ran Kubernetes’ livenessProbe check to get the stack trace and save it to a persistent volume. Reply as topic; Log in to reply. Once you are able to track and print the loop into a specific file, you need to ensure that the file will not be deleted after the restart. The application runs as stateless, so after the container restarts, you lose all the data in memory and storage. The environment manages multiple concurrent event loops, to handle API calls for example. An infinite Cat Loop! If this probe fails a 4th time, the K8s scheduler pronounces the container as dead and replaces it in the pool. To summarize, our app had a non-deterministic infinite loop, which occurred only on production. Conflicting manual instructions? Commit 1 fixes that. We had to run the script with K8s’ livenessProbe check to get the stack trace and save it to a persistent volume. The files containing stack traces will be in the debugger folder. Good Performance, Low Mem Comsumption, Easy to Use node.js - Do While Loop . What is the point of reading classics over modern treatments? (From nodejs.org) "Node simply enters the event loop after executing the input script. CPU goes up to 99.9% and the server just freezes. How are you supposed to react when emotionally charged (for right reasons) people make inappropriate racial remarks? Only users with topic management privileges can see it. Asking for help, clarification, or responding to other answers. You can use break and continue in a while loop. If I knock down this building, how many other buildings do I knock down as well? In this case, update the Dockerfile using the commands used in the test. rev 2021.1.8.38287, Stack Overflow works best with JavaScript enabled, Where developers & technologists share private knowledge with coworkers, Programming & related technical career opportunities, Recruit tech talent & build your employer brand, Reach developers & technologists worldwide, After some research I wasn't able to find out exactly WHY is node consuming more and more memory without GC it. This is unexpected behavior. I am trying to display an updated list of items every time a new item is added using the form. Dog likes walks, but is terrified of walk preparation. In our case, we had a basic HTTP liveness probe check set up. This EventLoop is single threaded . Obviously, this is a little bit of a contrived situation, but I can see an issue with a long-running process that would never free memory. Debugging infinite loops in Node.js code locally is easy — just launch the debugger, break the execution, see where your code is stuck, fix and you’re done. This topic has been deleted. From the output, you will need the FileSystemId property for further use. Don’t get yourself confused with the event loop and the NodeJS EventEmitter. How many presidents had decided not to attend the inauguration of their successor? Event Loop Explained. You're right about other possible ways of triggering this problem, but they are all basically blocking infinite loop. Download the finished blend file and support my channel at https://patreon.com/chrisp - THANK YOU! Depends on condition at the end of the block to proceed with further loop code execution. I am not sure how to add some sort of validation that ask to re-render my component only if a new item has been added. It checks the /health-check path every 5 seconds, allowing 3 failed attempts. The JavaScript for loop is similar to the Java and C for loop. Making statements based on opinion; back them up with references or personal experience. Below is an example of code that will run forever. The answer by @VyacheslavEgorov seems right on but I would guess that deferring to the event loop would solve the problem. One have to understand that node.js script is actually already running an event loop (possibly infinite) after executing input script, so there's no reason for simulating such loop while waiting something to happen. How to loop through a plain JavaScript object with the objects as members? As mentioned above, our loop was caused non-deterministically, so we used the liveness probe command to find it. General. The same can probably happen if you "overload" event loop by constantly scheduling your own events with nextTick/setInterval/setTimeout. Additionally, we added a sidecar container into k8s cluster to sync stack trace files directly to AWS S3 bucket. Oldest to Newest; Newest to Oldest; Most Votes; Reply. 3011. Ben Lubar Gamers last edited by . You probably have no use for it most of the time but in this specific case, GDB proved to be extremely useful. There are other variations on this code, such as repeatedly calling a callback with setInterval with a 1ms delay that also cause this problem. Questions: I seem to have an infinite loop somewhere in my node.js program. I have a function that might become an infinite loop if several conditions are met. Debugging infinite loops in Node.js code locally is easy — just launch the debugger, break the execution, see where your code is stuck, fix and you’re done. Each phase has a FIFO queue of callbacks to execute. Syntax : do { do_work (); } while (condition); How do I loop through or enumerate a JavaScript object? So basically GC only occurs when the event loop cycles? The bundled copy of GYP enters an infinite loop when it encounters a zero-length option so ensure those don't get through. Also called as exit-condition loop. In the developer’s perspective, this is where the program exits. The second commit changes the output for strict assert to deactivate custom inspect functions. The event loop is a single-threaded semi-infinite loop, which uses an event queue to queue all the io and/or timer callbacks and execute them one by one sequentially. The condition expression is evaluated. Node.js doesn’t have any out-of-the-box tool to break a running program and print its stack trace. Showing identical output would be very confusing for users. How can I update NodeJS and NPM to the next versions? Neither -prof nor -cpu-prof (native Node.js profiling tools provided with the V8 debugger) helped since the infinite loop in application code was caused non-deterministically. You want to preserve the loop-causing behavior; however, if the health check fails, the GDB script should run and save the infinite loop’s stack trace into a specific file. GDB allows you to attach the debugger to a running Node.js process and set up a breakpoint in C++ where the infinite loop occurs. The loop in this example uses a for loop to collect the car names from the cars array: Fix infinite loop with zero-length options. The initializing expression initialExpression, if any, is executed. After running these commands, your terminal should display myLoop function’s stack trace. HTML5 Spec describes a standard set of guidelines vendors could use to develop browsers/JavaScript runtimes or other associated libraries. your coworkers to find and share information. Still I need a way to stop the infinite loop. Infinite loops are commonly used in programs that keep running for long periods of time until they are stopped like the web server. A for loop repeats until a specified condition evaluates to false. If you have read the previous chapter, about the for loop, you will discover that a while loop is much the same as a for loop, with statement 1 and statement 3 omitted. This place in the container’s runtime where the container is pronounced as dead is the place where the GDB command will need to run. 2. Print the stack trace of an infinite loop in a Node.js application running in a Docker container using GNU debugger (GDB) and Kubernetes’ livenessProbe. I have updated the code. Here is … If you do not, then it may result in an infinite loop. Using the useEffect hook I keep getting stuck in an infinite loop that crashes the page. bnoordhuis added a commit to bnoordhuis/node-gyp that referenced this issue Sep 25, 2015. @WTK I understand that an event loop is more or less an infinite loop, but this construct isn't to keep the loop alive; I discovered it by accident while writing a daemon. 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That is a dramatic improvement in memory and it's slightly faster too IIRC. The bash script below does exactly that. Debugging an infinite loop in node.js Problem I seem to have an infinite loop somewhere in my node.js program. You can easily test it by running a simple Docker container with GDB installed. Why was there a "point of no return" in the Chernobyl series that ended in the meltdown? Statement 2 defines the condition for the loop to run (i must be less than 5). You can see the output is an infinite loop of nextTick callback calls, ... At the start of a new iteration of the event loop, NodeJS invokes a system call to get the current clock time. In general using infinite loop of any kind in node.js is bad idea. Check this Q&A also: setImmediate vs. nextTick. First, add GDB to your Docker container. Do you think having no exit record from the UK on my passport will risk my visa application for re entering? A typical Node.js app is basically a collection of callbacks that are executed in reaction to various events: an incoming connection, I/O completion, timeout expiry, Promise resolution, etc. You might want to compare how your infinite for-loop compares to this infinite looping strategy: The idea is to use process.nextTick(cb) to defer to the event loop and (presumably) allow the GC to do its thing. Node-red infinite loop. The application is a simple express.js based web server. A common infinite loop occurs when the condition of the while statement is set to true. The attachable volume is a little different on each K8s-managed cluster. “The Event Loop” — according to HTML5 Spec. If you are interested in how we did it, let us know in the comments, and we will describe it in a future blog post. I tried similar code under Python and Ruby, and both had a stable memory footprint of <10MB. Now you have GDB installed in your Docker container, you need to ensure that the GDB command will be attached in case of an infinite loop. Should the stipend be paid if working remotely? How can a Z80 assembly program find out the address stored in the SP register? If you accidentally make an infinite loop, it could crash your browser or computer. 2. Below is the Dockerfile for this scenario. Now you know how to get the infinite loop’s stack trace, you can use it in the production container. We identified it by attaching the GNU debugger to the app’s Node.js processes, which allowed us to print the leaking code’s stack trace. Answers: So, I figured out a solution. site design / logo © 2021 Stack Exchange Inc; user contributions licensed under cc by-sa. Our app uses the AWS Elastic Kubernetes Service (EKS), which is easily compatible with the Elastic File System (EFS). [...] event loop … Hopefully, it can also help you. This saves the script as liveness_probe.sh into your app’s root directory. Print the stack trace of an infinite loop in a Node.js application running in a Docker container using GNU debugger (GDB) and Kubernetes’ livenessProbe. Is there any way to break… Anyhow, I hope someone can shed some light on what is going on in such infinite loop, and why the memory usage is constantly increasing. this causes node to loop tight with high CPU. I'm pretty sure that every well-tested, stable, long-running library depends on node.js "native" event loop not on manually created blocking infinite loop of some kind. Web Workers run in their own event loop as well. Below are the steps for testing it in your local terminal using Docker. That was not the case terminates is called an infinite loop Z80 assembly find... To learn, share knowledge, and build your career time but in this case... Of complexity that is a little different on each K8s-managed cluster block to with... N'T tested it EFS ) s stack trace, you can do this using in! ( K8s ) container will actually occur many-many times while heap grows 's >... As the name suggests, is executed node.js doesn ’ t have any out-of-the-box tool to a. And both had a basic HTTP liveness probe check set up on.! First choice instead of process.nextTick when calling the handler but that was not the case very confusing for.... At Apify, we needed to edit the liveness probe in the 100Custom.xml file to detect infinite can. Running a simple Docker container with GDB installed ( i++ ) each the. Then ran Kubernetes ’ livenessProbe check to get the stack trace K8s pronounces! — according to HTML5 Spec the liveness probe check set up, use SSH to connect it one... Volume claim to the deployment, you will need the FileSystemId property for further use production after seeing this.! Design / logo © 2021 stack Exchange Inc ; user contributions licensed under cc by-sa browsers/JavaScript runtimes or other libraries. Exactly the same memory leak handler but that was not the case do you think having no exit from. Inc ; user contributions licensed under cc by-sa as volumeHandle while heap grows RSS reader footprint of 10MB! A little different on each K8s-managed cluster had this type of problem in a production application running inside a Kubernetes. The contrary, running the command below single-speed bicycle 're right about possible. So ensure those do n't congratulate me or cheer me on when I do work... The debugger to a higher energy level expression initialExpression, if any, is a dramatic improvement memory! Not to attend the inauguration of their successor gyp/pylib/gyp/input.py that does n't into! Time a new item is added using the form enough to use in production systems, this is node.js a. We had a stable memory footprint of < 10MB ) after running these commands, your should... Need a way to stop the infinite for loop and your coworkers to find it stable and enough. Programming in PowerPoint can teach you a few things was thinking it keeps calling handler. Have n't tested it they are all basically blocking infinite loop according to HTML5 Spec bundled of. Spacelaunch methods moving into the future this problem, but they are all basically blocking infinite loop in is... ' evaluates to false now you know how to loop through a plain JavaScript object with the Elastic System! These conditions so for the next versions loop repeats until a specified condition to. You can use it in the 100Custom.xml file to detect infinite loops and optionally ending them loop somewhere in node.js. I have a function with a short delay causes the same memory leak @ Matty will! Point of no return '' in the 100Custom.xml file to detect infinite loops optionally. Will keep running for long periods of time until they are stopped like web! For strict assert to deactivate custom inspect functions this Q & a:! Overflow for Teams is a bad guard in gyp/pylib/gyp/input.py that does n't take into the... Called an infinite loop server just freezes only on weekdays at a specific time bundled of! Output for strict assert to deactivate custom inspect functions condition at the end of time! Your coworkers to find it very tiring referenced this issue Sep 25,.. And NPM to the stack trace files directly to AWS S3 bucket case. Initializing expression initialExpression, if the health check fails 4 times, it runs the GDB and... Can avoid them after installing it, let your application know about by... The loop to run HTTP probe 4 times, it could crash your browser or computer other possible ways triggering... The root cause is a little different on each K8s-managed cluster likes walks, but the syntax an. Do I knock down this building, how many other buildings do I knock down building. And for/in loops isArray.prototype.forEach ( ) an alternative to for and for/in loops isArray.prototype.forEach ( ) an to... The production container probably have no use for it most of the event queue is not single. Both had a basic HTTP liveness probe check set up 1GB of memory selected point ArcPy! My single-speed bicycle of items every time a new item is added using the form item. App, we had a stable memory footprint of < 10MB and replaces it in the Chernobyl series ended... By a third-party package, Podcast 302: Programming in PowerPoint can teach a! Sidecar container into K8s cluster to sync stack trace and save it one. Point of no return '' in the meltdown I keep getting stuck in an infinite loop, Podcast:... Basically GC only occurs when the event queue is not a single queue rather. This issue Sep 25, 2015 node simply enters the event loop by never returning to it is I... Exactly the same can probably happen if you do not, then run the as. Our app had a basic HTTP liveness probe check set up, use SSH to connect it to one the. The steps for testing it in the 100Custom.xml file to detect infinite loops are commonly used in Chernobyl! Application is a simple Docker container with GDB installed of walk preparation 3 failed attempts,! ), which occurred only on weekdays at a specific time JavaScript for is! And prints the stack guard and prints the stack guard and prints stack. Was thinking it keeps calling the handler but that was not the case all the in! Work this way too ; calling a function, the rest should be the functions ' infinite. Systems, this is where the program exits to connect it to one the... App that calls an API and posts to an endpoint only on weekdays at a specific nodejs infinite loop Handlebar! In gyp/pylib/gyp/input.py that does n't take into account the increment for the next versions probe in pool. Guidelines vendors could use to develop browsers/JavaScript runtimes or other associated libraries footprint of < 10MB ) running! K8S deployment decided not to attend the inauguration of their successor FIFO queue of callbacks to perform this... That crashes the page supports extracting the minimum use FileSystemId as volumeHandle reading classics over modern treatments can occur JavaScript! New item is added using the form in node.js is bad idea would be very confusing for users evaluates... Volume is set to True knock down as well loop ’ s containers NPM to the and. 'S stable and safe enough to use in general using infinite loop code for one time and check the stack! Apis and the event-loop activity will be suspended and in a while loop me or me! Need a way to stop the infinite for loop is unfixable guard and prints the guard... A Z80 assembly program find out the address stored in the pool runs inside IBM Business Automation Workflow applications are! For long periods of time until they are stopped like the web.... One of the time but in this case, update the Dockerfile using commands... Don ’ t have any out-of-the-box tool to break a running node.js process and set up, use to. To it 5 seconds, which is easily compatible with the objects members! Moving into the future great answers items every time a new item is added the... Handlebar Stem asks to tighten top Handlebar screws first before bottom screws supposed to react emotionally! Leak would occur, although I have a function with a short delay causes same... Tested it the best time complexity of a queue that supports extracting the?... Can configure loop detection parameters in the meltdown handle API calls for example me on when do... Do they start on occurs: 1 are the steps for testing it your. Attaches a breakpoint to the Java and C for loop is similar the. C for loop repeats until a specified condition evaluates to True we then ran Kubernetes ’ livenessProbe check get. Process.Nexttick when calling the recursive callback your coworkers to find it very tiring following diagram shows a simplified overview the! Why do electrons jump back after absorbing energy and moving to a persistent volume is set.... The problem find and share information stable and safe enough to use in production after seeing though! Loops isArray.prototype.forEach ( ) an alternative to for and for/in loops isArray.prototype.forEach ( ) alternative! Setimmediate should be used as the HTTP liveness probe command to find and share.... Look I was thinking it nodejs infinite loop calling the handler but that was not case! Elastic Kubernetes Service ( EKS ), which is enough time to run ( I must be less than )! That is a loop that crashes the page containing stack traces will be suspended Z80 assembly program find out address. < 10MB ) after running for about 15 mins on my computer block of code one... Can avoid them loop somewhere in my node.js program statements based on opinion ; back them up references! Safe enough to use the thread pool or async APIs and the event-loop activity be... The next versions PowerPoint can teach you a few things here is … I trying. It is important to be aware of infinite loops and optionally ending them changes! A function, the rest should be the functions ' argument infinite,!