Questions tagged [503-error]

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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?
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1answer
673 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 ...
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449 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 ...
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1answer
20 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-...
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1answer
64 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 ...
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69 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 ...
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2answers
352 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 ...
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1answer
724 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 ...
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496 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 ...
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328 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 ...
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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 ...
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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. ...
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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 ...
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1answer
608 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 ...
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0answers
775 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 ...
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351 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 ...
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3answers
641 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 ...
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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 -...
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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 ...
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2answers
1k 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. ...
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1answer
728 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. ...
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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 ...
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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 ...
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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. ...
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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....
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1answer
625 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 ...
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3answers
79 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} !^...
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1answer
692 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 ...
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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 ...
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2answers
743 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?. ...
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0answers
749 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....
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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 ...
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3answers
21k 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 ...
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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 ...
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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 ...
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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 (...
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51 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 ...
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0answers
713 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 ...
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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 "...
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1answer
874 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, ...
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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 [...
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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 ...
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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 ...
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765 views

Custome page when Apache Server is down

I've looked at Apache ErrorDocument directive on how to do this. I found an answer here and it mentioned : You should use a URL to point to your ErrorDocument otherwise if you use a filesystem ...
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0answers
571 views

Nginx with wordpress refused varnish static content requests

I just added another wordpress site to my ubuntu server. 2 wordpress sites, not multisite. They use 2 different fpm pool with same config. Their Nginx config files are basically identical except the ...
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1answer
746 views

Switched from Apache to Nginx - 503 errors

Switching from Apache to Nginx has caused us some errors.Our forum images do not load, and a directory with redirects and such don't actually redirect. The two problems is /forum/uploads/avatars, ...
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2k views

varnish random and sporadic 503 error

EDIT1 : I tried the setting suggested on my preprod environment without success. Since I can reproduce the issue on another environment I tried to look for similarities. I disabled logrotate for ...
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5answers
71k 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 ...
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1answer
2k views

Citrix Secure Gateway not redirecting to login URL

We have an older setup for XenApp - users log in through Citrix Secure Gateway running on a windows box. (We hope to start using a NetScaler soon.) Earlier today, connections to https://citrix....
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2answers
1k views

Nginx Maintenance Mode (503) in Subdirectory with PHP-FPM

I'm using Nginx with PHP-FPM, and I want to restrict access to a subdirectory of PHP files on my site so that only traffic from my IP address is allowed. Here is what I have tried, assuming my IP is ...