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Posted to bugs@httpd.apache.org by bu...@apache.org on 2006/05/23 19:58:03 UTC
DO NOT REPLY [Bug 39645] New: - proxy error: Error reading from remote server
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Summary: proxy error: Error reading from remote server
Product: Apache httpd-2
Version: 2.0.55
Platform: Sun
OS/Version: Solaris
Status: NEW
Severity: normal
Priority: P2
Component: mod_proxy
AssignedTo: bugs@httpd.apache.org
ReportedBy: jsrao_5@yahoo.com
CC: jsrao_5@yahoo.com
I configured the Apache httpd-2.0.55 as Reverse proxy server for a JBOSS backend
application server.
It seems everything working fine. But some times ( intermittently) i am seeing
an following error.
Proxy Error: The proxy server received an invalid response from an upstream server.
The proxy server could not handle the request POST /jsp/file/file_upload1.jsp.
Reason: Error reading from remote server
The folllwing are the errors found in the error_logs
[Tue May 23 05:30:24 2006] [error] [client 10.10.7.69] proxy: error reading
status line from remote server myserver, referer: http:/
/myserver.mydomain.com/jsp/authapp/group_app_add1.jsp
[Tue May 23 05:30:24 2006] [error] [client 10.10.7.69] proxy: Error reading from
remote server returned by /jsp/authapp/group_app_ad
d1.jsp, referer: http://proxy.mydomain.com/jsp/authapp/group_app_add1.jsp
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DO NOT REPLY [Bug 39645] - proxy error: Error reading from remote server
Posted by bu...@apache.org.
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rpluem@apache.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |NEEDINFO
------- Additional Comments From rpluem@apache.org 2006-05-23 18:28 -------
Are you using SSL on httpd side? If you yes, you have been hit by PR37145.
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DO NOT REPLY [Bug 39645] - proxy error: Error reading from remote server
Posted by bu...@apache.org.
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------- Additional Comments From jsrao_5@yahoo.com 2006-05-23 18:35 -------
(In reply to comment #1)
> Are you using SSL on httpd side? If you yes, you have been hit by PR37145.
Yes I am using ssl on httpd side. But i am seeing this error on both http( Non
SSL ) and https:// ( SSL ) requests intermittently
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DO NOT REPLY [Bug 39645] - proxy error: Error reading from remote server
Posted by bu...@apache.org.
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jsrao_5@yahoo.com changed:
What |Removed |Added
----------------------------------------------------------------------------
Severity|normal |critical
------- Additional Comments From jsrao_5@yahoo.com 2006-05-23 18:44 -------
The patch PR37145 has been applied earlier before moving Reverse proxy server to
production.
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DO NOT REPLY [Bug 39645] - proxy error: Error reading from remote server
Posted by bu...@apache.org.
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------- Additional Comments From rpluem@apache.org 2006-05-23 19:17 -------
Either there is a problem with your backend system or you are probably facing
some sort of keepalive problem (backend closed connection just as httpd sent
request).
I know that this may not be possible in a production environment, but are you
able to catch such a situation with a network sniffer?
Another approach would be to disable keepalives to the backend to find out if
this makes the problem go away. So please try the following setting:
SetEnv proxy-nokeepalive 1
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DO NOT REPLY [Bug 39645] - proxy error: Error reading from remote server
Posted by bu...@apache.org.
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------- Additional Comments From pupilla@hotmail.com 2006-06-14 10:38 -------
I'm having a similar problem with apache 2.2.2 and IIS from windows
2003sp1/2000sp4/nt40sp6a (no ssl & only ipv4).
'SetEnv proxy-nokeepalive 1' resolves the problem. The problem is related to a
RST packet sent from the backend server to the apache reverse proxy.
See http://issues.apache.org/bugzilla/show_bug.cgi?id=39499#c7
apache is running on linux 2.6.16.20 and/or 2.6.17-rc6
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DO NOT REPLY [Bug 39645] - proxy error: Error reading from remote server
Posted by bu...@apache.org.
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jsrao_5@yahoo.com changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEEDINFO |RESOLVED
Resolution| |FIXED
------- Additional Comments From jsrao_5@yahoo.com 2006-06-14 12:33 -------
Hi Guys
First of all, thanks alot for all your sugestions.
I tried with this "SetEnv proxy-nokeepalive 1" setting last week. and my QA
team monitored the system for a week. seems to be everything is good and the
problem is fixed.
Thanks once gain ..
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