Questions tagged [503-error]

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votes
10answers
96k views

How do I resolve a 503 Server Unavailable connection error on VMware ESXi?

I have a VMware ESXi server which has been up and running for nearly 200 days. The past few days, when I try to connect to it using the VMware vSphere Client, I am unable to connect. After entering my ...
3
votes
4answers
23k views

Exchange 2013 ECP/OWA/Outlook all failing - 503 Service Unavailable

My exchange server is really suffering at the moment. I do not know what has happened but when I connect via https (ECP/OWA) or via outlook (with in the network) I get 503 errors on ECP/OWA and ...
0
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0answers
22 views

WebLogic 12c - HTTP 503 Error Consistently When Using CAT

I am trying to figure out which classes are loaded into memory via the WebLogic Administration console. I found that there is a "Classloader Analysis Tool (CAT)". However, when I click on the link to ...
0
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2answers
441 views

Nginx PM2 NodeJS reverse-proxy with SSL gives HTTP 504

Once upon a good time, I had a good config for three NodeJs, socket.io API running on the same Ubuntu 16.4 LTS VPS server with PM2 for process managing and Nginx for reverse proxy to three different ...
2
votes
1answer
2k views

IIS 8 Server Too Busy

I've been working on it for a few weeks. I've an IIS 8.0 Server hosting, ASP .NET 4.0 application in Classic mode. Two of the files are GET which do file system reads for every request and one is post ...
1
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2answers
2k views

IIS 503 Service unavailable when using SSL

I've setup an https binding for my site in IIS but I'm getting a 503 Service Unavailable error whenever I try to hit the endpoint. What's weird is I can access the site without issue over port 80. ...
0
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0answers
35 views

View 503 errors in real time?

I know I can use tail -f /access.log to view my log file in real time. Can I use tail or grep or some sort of combinations to only view 503 errors in real time within that log file?
0
votes
1answer
737 views

haproxy ssl termination works on http BUT fails on https with 503 - on Virtualbox apache2 ubuntu 18.04 backend server

I've just dived into haproxy, and my goal is to setup an ssl terminated loadbalancer with one frontend ubuntu, and (for now) one backend lamp (ubuntu). Both the frontend and backend machines are 18.04 ...
0
votes
1answer
471 views

K8S HPA custom Stackdriver - 503 The service is currently unavailable - avoids scaling

We have an horizontal pod auto-scaler (HPA) installed on gke cluster, most of the time the auto-scaler works perfectly fine. but from time to time (mostly on our customer rush hours) the auto scaler ...
0
votes
1answer
24 views

503 service unavailable while trying to login through wordpress

I have no access to my site on Wordpress from any laptop browser I have. But it's possible to log in from other computers and I can access it from my phone. In the laptop browser, I type aomy.nl/wp-...
0
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1answer
79 views

How do I need to configure selinux in order to have 'setenforce 1' and still be able to run my webservices?

my problem is as follows: I installed gitlab on a cloudserver of mine running CentOS7, and I configured it to use apache2/httpd instead of nginx as webserver. For doing so I followed this answer on ...
1
vote
0answers
88 views

Proxy (transparent) that retries on 503 errors

In a devops setting, a docker container needs to have its https traffic filtered through a retrying proxy/cache, as the requests sometimes fail due to 503 errors. It seems like squid can do this, but ...
4
votes
4answers
8k views

Getting random/intermittent 503 errors on my local IIS website

I've set up an ASP.NET MVC website in my local IIS 7 server. It was working fine for a while, but suddenly it seems to be returning 503 errors at random intervals, for random requests. If I browse ...
3
votes
4answers
4k views

Varnish 3.0.2 to Apache2 sometimes return error 503

Hey guys I hope you can help me out here. I have an Ngingx parsing http and https to a varnish cache(3.0.2). From the varnish it is sent to apache2. Now I have for some time been tracking some ...
0
votes
1answer
847 views

Apache: 503 Service Unavailable sometimes without any server load

I have an apache server v2. Sometimes I get 503 error without any server load at all this error appears randomly not at any specific time or when using specific services. How to find the cause or ...
0
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0answers
570 views

AWS ELB and IIS 10: 503 Service Unavailable

I'm running IIS 10 on a Windows Server 2016 EC2 instance that sits behind an AWS ELB. I've loaded a custom (signed) SSL Certificate on the ELB. When I attempt to load sites without https, they're ...
1
vote
0answers
370 views

HAProxy returns 503 (80 & 443 frontends + redirections managed by virtualhosts)

I've already looked for many posts, but no one solved my problem... Let me explain the context : 3 containers on a dedicated server : [10.173.223.10] haproxy [10.173.223.11] Container_A (contains ...
1
vote
2answers
2k views

HAProxy served 503s and I don't know why

Yesterday, for around 10 minutes, my haproxy served a lot of 503 pages (directly from errorfile 503 /etc/haproxy/errors/503.http) and I don't know why. I have no health checks to my backends, so for ...
1
vote
1answer
2k views

NGINX: Request Limit timeout behavior for queries in the queue (burst)

Currently, we have a queue size of 3000 requests. location /api/v2 { limit_req zone=bursted burst=3000; include /etc/nginx/proxy.conf; } The rate limit is 10 requests per second. ...
0
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2answers
773 views

How can I deploy a 503 maintenance page when upgrading a Digital Ocean droplet?

Usually when I perform maintenance that requires briefly taking my site down, I put up a 503 page using something similar to How can I make Nginx return HTTP 503 when my proxied app server is down?. ...
0
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0answers
1k views

503 error for long HTTP connections to apache 2.4 on centos 7

I'm running Apache 2.4 (mpm event mode + php-fpm) on CentOS 7. For HTTP requests which take longer than 60 seconds (whether it's a dynamic PHP page or a static page), exactly after one minute I ...
0
votes
1answer
645 views

Tracking cause of 503 errors for certain IP addresses

An outside IP address is getting access blocked (though a few rare requests do get through from the IP address) with 503 errors to websites on my Apache2 webserver on a Debian machine. I have ...
39
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5answers
72k views

AWS ELB Apache2 503 Service Unavailable: Back-end server is at capacity

We've been running a couple websites off Amazons AWS infrastructure for about two years now and as of about two days ago the webserver started to go down once or twice a day with the only error I can ...
2
votes
0answers
828 views

show customize 503 message when app pool is stopped

i have read alot about it even here: https://stackoverflow.com/questions/2271887/custom-error-page-for-http-error-503 nothing worked for me. when the application pool is stopped it will always show ...
0
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0answers
363 views

Why is Wordpress/Apache returning a 503 error?

I have two separate WordPress nodes running with an Haproxy load balancer out front. After I got my infrastructure set up, tested, and working, a few hours later the whole infrastructure is down and ...
0
votes
1answer
636 views

OpenShift Free Tier: 503 Service Unavailable

I've been working on my Ghost theme for the last few hours, and suddenly this error. Attached is a copy of my HAProxy status output. I've restarted both NodeJS and HAProxy. Neither restart fixed the ...
0
votes
3answers
705 views

Apache collapses after getting overloaded

I have an apache http server. Recently, my server became overloaded, resulting that the service was no longer answering any http requests(the last answer was 503). Even when the server was no longer ...
2
votes
4answers
5k views

503 error on apache virtual hosts

I created a virtual host with the following code on an ubuntu apache server cd /var/www/ sudo mkdir fd-pro sudo mkdir /var/www/fd-pro/ch-api sudo mkdir /var/www/fd-pro/ch-api/public_html sudo chown -...
0
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0answers
5k views

Reason for Apache 503 Service Unavailable

There are several possibilities why apache returns 503 - Service Unavailable: MaxConnPerIP MaxClients ... The application is kallithea (a source code management system for git). I could not find ...
0
votes
1answer
777 views

Apache Load Balance and 503 Response

i have such a enviroment: We have one our own Web server, which comunicates with other software components (creating pdf documents) over http protocol. Such a software component is called a worker. ...
0
votes
1answer
1k views

Apache archiva returns http error 503

I am using apache Archiva v. 2.2.0 under Windows Server 2012 R2. With Java version 1.8.0_60 everything worked fine. After updating to 1.8.0_101_b13 I am getting an error message when going to archiva ...
2
votes
1answer
3k views

How to debug error 503 without a trace?

I am working on a large web application with a C# backend. In the development setup, the application is served via an IIS 8.5 instance on my machine. Since recently, I cannot log in any more. I still ...
3
votes
1answer
6k views

haproxy 1.5 specific source IP address show <NOSRV> 503 SC in haproxy log

I have an unusual problem (as everyone does on this site). I have HAProxy listening on port 80 and 443. I am offloading SSL encryption to HAproxy and passing all traffic to my web servers on port 80. ...
3
votes
1answer
19k views

Ubuntu Apache Server 503 Error: disabled connection for (localhost)

in a bit of a bind here. I'm trying to move a website (www.monkhouselaw.com) from one hosting company to my Digital Ocean VPS. I've changed the DNS settings to: * -> 107.170.29.18 www -> 107....
2
votes
3answers
80 views

How do I set up a toggle for an Apache RewriteRule?

I have the following Apache config, which displays a 503 Service Unavailable error to all visitors except for my IP address: ErrorDocument 503 /503.html RewriteEngine On RewriteCond %{REMOTE_ADDR} !^...
6
votes
2answers
3k views

How can I make Nginx return HTTP 503 when my proxied app server is down?

I have an nginx web server sitting in front of a Jetty Java app server running a web application. I'd like to configure nginx to return a HTTP 503 if the proxied Jetty server is down. This way when ...
0
votes
1answer
750 views

internal error server point to working server using load balancer or nginx

Lets say that I have 3 physical servers with different IPs and 1 load balancer which manages the traffic between those 3 servers. We tested to stop the service of nginx in the 2 servers and the load ...
0
votes
1answer
886 views

#openshift server unavailable 503 error

I have application created on TOMCAT7 (JBOSS EWS) using Mysql DB. My application keeps getting 503 error (service unavailable) [WARNING] 033/104029 (124189) : Server express/local-gear is DOWN, ...
-1
votes
1answer
4k views

503 service unavailable. Apache crashes once in 7-10 days

I use Apache server on Ubuntu 14.04. In order redirect all requests from mypage.com to mypage.com:8080/myapp I use mod_proxy. My 000-default.conf looks as follows: <VirtualHost *:80> # The ...
1
vote
0answers
760 views

503 error when trying to login joomla 3.3.1

I'm facing a strange issue on joomla and would need help to solve it : The frontoffice side is working fine but when trying to log in backoffice, I get a HTTP 503 Error : [Wed Jul 29 17:41:02....
1
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0answers
1k views

How to fix/troubleshoot AkamaiGHost TCP_Miss and 500 Errors

I have a java application running on a server in South America at the moment, and using Akamai's CDN. When I check the errors, i sometimes get the error: "HTTP/1.1 503 Service Unavailable" and "500 ...
3
votes
2answers
28k views

Jetty 7 gives HTTP ERROR: 503 - service unavailable

I am getting the error 503 when I try to start Jetty. Does anyone know what this might mean. I am running Jetty 7 and starting it with the start.jar file. If anyone knows how to configure Jetty to ...
0
votes
1answer
3k views

Nginx error page static content not loaded

Running Nginx 1.4.1 I have the following config to display a custom error page in case my backend messes up. The page is displayed but custom fonts & images are not loaded. My custom error page (...
0
votes
0answers
2k views

Service Temporarily Unavailable error when I try to acces a spacebrew server using nodejs?

I've tried to install Spacebrew for an Arduino Yun project on a 'openshift' nodejs server, but get the following error when I go to the url: Service Temporarily Unavailable The server is temporarily ...
0
votes
1answer
2k views

“(503) Server Unavailable” when attempting “Connect to Site” remotely using IIS Manager. Connecting locally using localhost works fine

I am using IIS 8.5 on Windows Server 2012. I have installed and configured IIS "Management Service". When running "Connect To Site" locally and attempting to connect to a site on the server using "...
1
vote
0answers
52 views

Solr 503 when using boost function

I have three environments which are set up to use Solr: local, staging and production. The local configuration differs slightly to the staging/production however the other two are identical. I ...
0
votes
0answers
727 views

Tomcat suddenly shutdown

Tomcat randomly stops receiving requests and returns error 503. Im running a tomcat 7 on Ubuntu 12.04 TLS updated. In the apache error log you can see the following trace: [Wed Mar 04 09:36:27 ...
8
votes
3answers
5k views

Getting 503 error from Varnish but varnishlog doesn't tell much

Running Varnish 4 and I'm occasionally getting 503 errors which I can't put my finger in. I've tried curling the backend directly and it's returning a response everytime so it doesn't look like the ...
1
vote
1answer
1k views

Error 500 / 503

I get an Error 500 / 503. My theory was that php5-fpm was being killed and re-spawned every second due to messages like this in php5-fpm.log [27-Jan-2015 08:21:34] NOTICE: fpm is running, pid 30045 [...
1
vote
1answer
2k views

How do I show an empty error page on HAProxy for a single URL?

Question I have a single URL say: http://foo-backend.com/display_blank_when_errored On a site behind an HAProxy load balancer let's say the front-end site is: http://foo.com When an error happens ...