Intermittent 502 bad gateway. 1) Last updated on MAY 26, 2021.

• Intermittent 502 bad gateway Some of the environment variables which were being picked up by the Java process were causing it to fail at startup. Mar 16, 2025 · It can be caused by similar issues to 502 but with a specific timeout element. Oct 16, 2019 · Intermittently, when sending GET to the bot token controller in order to retrieve a token to open the bot, result 502 (Bad Gateway) occurs. The server returns an incorrect response when it reaches a state of overwhelming requests and fails to complete processing in a short time. I didn't use the word "intermittently" because it is always on the same type of call but now always with the same data. also when the "502 Bad Gateway (nginx/1. 15. 2022-02-17T11:02:02. 5. 502 Bad Gateway, HANA Cloud, AFO, InA, INARuntimeException, RESULTSET_PARSING, HANA Analytics Adapter (HAA), INCOMING_CONNECTION_TIMEOUT, HanaHttpConnectionTimeout , KBA , HAN-DB-ENG-MDS , SAP HANA Multidimensional Services MDS / InA , Problem May 1, 2018 · I'm running into '502 Bad Gateway' issues for HTTPS requests when using AWS Elastic Load Balancer (Application type) in front of EC2 instances running Nginx. 2. Dec 9, 2022 · At one of my clients we experienced a similar issue with intermittent 502 responses when using Application Gateway v2 with an AKS cluster backend running it own ingress controler (nginx or haproxy, so no AGIC). Sometimes the issue might be resolved on the server-side soon. com' with a status of 502 Bad Gateway. Feb 18, 2024 · HTTP ERROR 502'. Sep 19, 2024 · When a 502 error happens, users are unable to access your website, which can lead to a poor user experience and lost traffic. Check the app logs for restarts or other errors. Jan 26, 2019 · Creating and deploying API servers is a space with a lot of options and many different ways to achieve the same end-result in both development and operations. 15. Aug 10, 2021 · A few common reasons for an AWS Load Balancer 502 Bad Gateway: Be sure to have your public subnets (that your ALB is targeting) are set to auto-assign a public IP (so that instances deployed are auto-assigned a public IP). 5)" occured ingress-controller pod shows. The main instance is where a user attempts to login. It's a container that logs POST data to a mysql DB on another Mar 6, 2023 · Our Azure Fuction has started to return 502 Bad Gateways but not on all calls. However although I have got the apps up running fine I am now experiencing intermittent 502 Bad Gateway errors in certain circumstances. Mar 27, 2025 · Here are some common culprits behind a 502 bad gateway error: 😵‍💫Overloaded server: The server experiences performance problems when website traffic spikes rapidly. Nginx is acting as a reverse proxy on each instance for a waitress server serving up a python app (Pyramid framework). To troubleshoot and resolve this issue, the following steps can be taken: Oct 17, 2018 · @CandleCandle and I were also facing similar 502 Bad Gateway issues when using the SQS service. 502 Bad Gateway NodeJS/MongoDB AWS Elastic Beantstalk. I am not sure what could be the reason. Jul 24, 2024 · A Bad Gateway error received in Windows Update generates a 0x80244021 error code or the message WU_E_PT_HTTP_STATUS_BAD_GATEWAY. node. May 19, 2023 · Learn how to troubleshoot Application Gateway Server Error: 502 - Web server received an invalid response while acting as a gateway or proxy server. This has happened 8/7/19, 9/16/19, 9/17/19, and 9/20/19. Coupon code applied: Aug 2, 2014 · Intermittent 502 Bad Gateway errors running Express apps behind Nginx. js express apps behind nginx. Applies to: Oracle Integration - Version 17. css files, with the same 502 Bad Gateway status. Jul 27, 2020 · I have a Kubernetes cluster deployed on AWS (EKS). It's similar to 502 but might be due to planned downtime. . I’m trying to deploy a Dash python app on the cluster without success. The page remains blank with multiple entries in the 'Network' tab. then k8s could be load balancing all of them and giving intermittent errors May 30, 2019 · A 502 on an ELB generally points to an app/server issue. And mostly on 1 website/container. When Google services, like Google Search or Gmail, are experiencing a 502 Bad Gateway, they often show Server Error , or sometimes just 502 , on the screen. js or xxx. e. Mar 10, 2022 · Backstory First: We have a deployment running that encounters intermittent 502s when trying to load test it with something like JMeter. so, I used --ignore-watch "images/blog" in pm2 command and it ignored new images Jan 22, 2020 · I've looked through other bad gateway errors in this repo, but they are mostly failing all the time. May 6, 2017 · IN my scenario, I had saved images in local assets folder and pm2 keep monitoring and restarting my server once I hit post/patch request as image is newly saved or updated. Please DM me if you have any questions about this Cloudflare article (or have some feedback to make it better 😄️). Implementing health checks, load Mar 18, 2024 · If you’re looking for (free) tips to optimize your site speed with Cloudflare and rank higher on Google, you can follow me on Twitter 👉🏻 @bitofseo. Underneath the hood, Localstack's SQS service fires up a Java process, using elasticmq-server. Try to check in Configmap for proxy-next-upstream settings, and extend it to handle the http_502 case. But other website/containers are also getting it, al Aug 2, 2018 · Azure Application Gateway's back-end pool is not configured or empty. None of the VMs or instances in virtual machine scale set are healthy. MyDomain. 1 and later Aug 12, 2020 · Without linkerd proxy, there are no trace of 502 bad gateway at the ingress level nor the app level With linkerd proxy enabled on nginx ingress and or app, intermittent 502 Bad Gateway appears in the system. 257+00:00. My issue is different, I get 502 intermittently. Logs don't provide anything useful. Optimizing server performance and reliability involves routine maintenance and monitoring. some old IPs no longer part of the ELB), we face issues as Nginx continues to forward traffic to the old IP which no longer has any target attached. 1) Last updated on MAY 26, 2021. So, 502 or bad gateway is thrown by that IP (VM or whatever) and Nginx also returns the same 502 status to the clients. Per the RFC: 10. References: Troubleshooting bad gateway errors in Application Gateway Apr 11, 2021 · if you use the nginx ingress reverse proxy, it maybe the cause. This code indicates that the server is temporarily unavailable, overloaded, or under maintenance. 4. Sep 6, 2023 · The website suddenly starts experiencing intermittent 502 Bad Gateway errors, causing frustration for both the website owners and users. Request time-out or connectivity issues with user requests. jar . In this post, I’m going to describe my experience with debugging intermittent HTTP 502 responses from NodeJS Express servers fronted by an AWS Application Load Balancer (ALB), and present the solution to solve these intermittent 502 Jun 24, 2022 · I have an azure function runtime version 1 that is returning 502 Bad Gateway errors after running for sometime. Also enable the retry-non-idempotent if the request that got 502 is POST, LOCK, PATCH, if it is safe for your app to do so. In this article, we’ll explore what a 502 Bad Gateway error means, its common causes, and practical steps to troubleshoot and resolve it. Hi everyone,. I deployed the cluster using the “eksctl” command line tool. Security group for your alb allows http and/or https traffic from the IPs that you are connecting from. js app with nginx 502 bad Aug 9, 2023 · Based on my understanding of your question above you are getting intermittent 502 bad gateway errors when performing load tests with JMeter on an Application Gateway v2 Standard (as Load Balancer) in front of 2 VMs with a Java Spring Boot application as a backend pool. Errors occur when accessing one or more xxx. In this case, the 'Network' tab shows only one entry for 'www. Aldrine Einsteen 1 Reputation point. You can fix it by reloading the webpage. The default po May 26, 2021 · Intermittent 502 Bad Gateway errors in OIC (Doc ID 2400317. 6 days ago · A 502 bad gateway occurs when a server acting as a gateway receives an invalid response. 3 502 Bad Gateway The server, while acting as a gateway or proxy, received an invalid response from the upstream server it accessed in attempting to fulfill the Jan 20, 2024 · Preventing 502 Bad Gateway Errors. Dec 13, 2017 · But when the IPs for an upstream ELB changes (i. General Config Oct 24, 2013 · I'm currently running a range of Node. The ELB is having problems communicating with the app server. Feb 17, 2022 · Azure application gateway giving BAD Gateway 502. qsbhj xjul tutlg ttnne ivijmu ktvg rujf jndqw mqkb qzdd rtod drugc bavnpk oltr rqrd