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 Topic: Apache httpd Service Unavailable 503 error |
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sairam
Joined: 13 Jan 2015
Posts: 2
Location: india,hyderabad
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 Posted: Tue 13 Jan '15 13:45 Post subject: Apache httpd Service Unavailable 503 error |
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Hi folks,
I am using windows 2008 R2 64 bit O.S, I downloaded httpd-2.4.10-win64-VC11 and tomcat-connectors-1.2.39-windows-x86_64-httpd-2.4.x and I created 3 tomcat workers and then I configured workers.properties and httpd.conf.
After complete setup when i tried using
http://localhost then
I got It works! message (looks everything is fine).
and then I have deployed my sample web application I tried to access the same application then using
http://localhost/SampleCluster
I am getting
503 service not available.
Service Unavailable
The server is temporarily unable to service your request due to maintenance downtime or capacity problems. Please try again later.
I seen so many people are struck with this issue(I came to know when I searched for this issue)
What might be the problem ?
Please let me know.
Last edited by sairam on Wed 14 Jan '15 7:51; edited 1 time in total |
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maba
Joined: 05 Feb 2012
Posts: 64
Location: Germany, Heilbronn
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| Posted: Tue 13 Jan '15 21:17 Post subject: |
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This is almost always a problem of the Tomcat application. Apache is waiting for some valid HTTP response but gets strange output that cannot be interpreted as a HTTP reply.
Example:
should return something like
| Code: |
Content-Type: text/html
Content-Length: 2069
<html>
...
</html>
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The byte count and the reply are just examples. Now lets assume your Tomcat app returns a LOG-Message to Apache instead of valid HTML. Something like
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INFO: 2015-01-13 10:00:00.1234 Here comes a log message
WARN: 2015-01-13 10:00:00.1235 Here comes something else
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This would totally confuse Apache. Those are the scenarios where Apache will give 503 or 500 as a reply.
To debug Tomcat Apps and check what is going on, please check the catalina.out file of you Tomcat App for errors.
The catalina.out default location is under .../Apache-Tomcat-x.y.z/logs |
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