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Posted to users@httpd.apache.org by Parag Dhanuka <pa...@gmail.com> on 2008/04/20 15:21:53 UTC
[users@httpd] Re: Proxy Error
I did a netstat -n and it seems that I am always having arnd 300-400
connections to the port on which tomcat is listening to the proxy
On Sun, Apr 20, 2008 at 6:32 PM, Parag Dhanuka <pa...@gmail.com>
wrote:
> Hi all,,
>
> I am using an apache server to act as a load balancer to my tomcat
> server...
>
> I am using reverse proxy for doing this..
> The major lines of change in my http conf are these
>
> <IfModule mod_proxy.c>
> ProxyRequests Off
>
> <Proxy *>
> Order deny,allow
> Deny from all
> Allow from all
> SetEnv force-proxy-request-1.0 1
> SetEnv proxy-nokeepalive 1
> </Proxy>
>
> ProxyPass /blah http://localhost:8090/blah
> ProxyPassReverse /blah http://localhost:8090/blah
>
> ProxyPass /blah http://localhost:8091/blah
> ProxyPassReverse /blah http://localhost:8091/blah
>
>
> My tomcat server conf has this line added with other appropriate changes
>
> <Connector
> className="org.apache.catalina.connector.http.HttpConnector" port="8091"
> maxKeepAliveRequests="1" protocol="HTTP/1.1"
> proxyPort="80"/>
>
>
> Now I am getting this error in my server logs which I have no idea as to
> how to fix
>
> [Sun Apr 20 03:35:57 2008] [error] [client 66.249.85.88] proxy: error
> reading status line from remote server localhost
> [Sun Apr 20 03:35:57 2008] [error] [client 66.249.85.88] proxy: Error
> reading from remote server returned by blah
>
> As soon as this error comes soon I am bombarded with errors like
> (111)Connection refused: proxy: HTTP: attempt to connect to 127.0.0.1:8091(localhost) failed
>
> All tht I get on my webserver is a 500 response.... I am lost.... Please
> help....I gooogled a lot and added
> SetEnv force-proxy-request-1.0 1
> SetEnv proxy-nokeepalive 1
>
> and also removed keepaliverequest from tomcat. but still I soon ended up
> getting into this problem :(
>
> --
> Parag Dhanuka
--
Parag Dhanuka
Re: [users@httpd] Re: Proxy Error
Posted by Parag Dhanuka <pa...@gmail.com>.
Ok will start stress test on tomcat.... its just tht I have low CPU and mem
usage showing <10%.... but still thanks for the reply.... have been in a
mess
:(
On Mon, Apr 21, 2008 at 8:58 PM, Joshua Slive <jo...@slive.ca> wrote:
> On Mon, Apr 21, 2008 at 11:24 AM, Parag Dhanuka <pa...@gmail.com>
> wrote:
> > THis however happens after I get tonnes of
> >
> > [client 66.249.85.88] proxy: error reading status line from remote
> server
> >
> > What can this error mean as tomcat logs are not showing any errors
> > whatsoever :(
>
> That's probably just a symptom of httpd being unable to connect to tomcat.
>
> Joshua.
>
> ---------------------------------------------------------------------
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>
--
Parag Dhanuka
Re: [users@httpd] Re: Proxy Error
Posted by Joshua Slive <jo...@slive.ca>.
On Mon, Apr 21, 2008 at 11:24 AM, Parag Dhanuka <pa...@gmail.com> wrote:
> THis however happens after I get tonnes of
>
> [client 66.249.85.88] proxy: error reading status line from remote server
>
> What can this error mean as tomcat logs are not showing any errors
> whatsoever :(
That's probably just a symptom of httpd being unable to connect to tomcat.
Joshua.
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Re: [users@httpd] Re: Proxy Error
Posted by Parag Dhanuka <pa...@gmail.com>.
THis however happens after I get tonnes of
[client 66.249.85.88] proxy: error reading status line from remote server
What can this error mean as tomcat logs are not showing any errors
whatsoever :(
On Mon, Apr 21, 2008 at 8:08 PM, Joshua Slive <jo...@slive.ca> wrote:
> On Mon, Apr 21, 2008 at 12:12 AM, Parag Dhanuka <pa...@gmail.com>
> wrote:
> > Please help someone... The problem is happening every 3 hrs on a live
> server
> > :(.... I have writen some script to handle this but cannot really sleep
> till
> > this is fix....
> >
> > Besides I also tried connecting locally to the tomcat instance using
> wget
> > localhost:8091 and interestingly the wget just hung without any response
> > from tomcat.... Is this some weird tomcat issue which I cannot look
> into....
> > It is not tht my instance is heavily loaded as it happened also at a
> time
> > when traffic was really very low.... :(
>
> I can't give you much help on this, but if tomcat is not responding to
> HTTP requests, then the problem is with tomcat and not with apache
> httpd. Perhaps you'd have better luck asking for debugging help on a
> tomcat list.
>
> Joshua.
>
> ---------------------------------------------------------------------
> The official User-To-User support forum of the Apache HTTP Server Project.
> See <URL:http://httpd.apache.org/userslist.html> for more info.
> To unsubscribe, e-mail: users-unsubscribe@httpd.apache.org
> " from the digest: users-digest-unsubscribe@httpd.apache.org
> For additional commands, e-mail: users-help@httpd.apache.org
>
>
--
Parag Dhanuka
Re: [users@httpd] Re: Proxy Error
Posted by Joshua Slive <jo...@slive.ca>.
On Mon, Apr 21, 2008 at 12:12 AM, Parag Dhanuka <pa...@gmail.com> wrote:
> Please help someone... The problem is happening every 3 hrs on a live server
> :(.... I have writen some script to handle this but cannot really sleep till
> this is fix....
>
> Besides I also tried connecting locally to the tomcat instance using wget
> localhost:8091 and interestingly the wget just hung without any response
> from tomcat.... Is this some weird tomcat issue which I cannot look into....
> It is not tht my instance is heavily loaded as it happened also at a time
> when traffic was really very low.... :(
I can't give you much help on this, but if tomcat is not responding to
HTTP requests, then the problem is with tomcat and not with apache
httpd. Perhaps you'd have better luck asking for debugging help on a
tomcat list.
Joshua.
---------------------------------------------------------------------
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See <URL:http://httpd.apache.org/userslist.html> for more info.
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[users@httpd] Re: Proxy Error
Posted by Parag Dhanuka <pa...@gmail.com>.
Please help someone... The problem is happening every 3 hrs on a live server
:(.... I have writen some script to handle this but cannot really sleep till
this is fix....
Besides I also tried connecting locally to the tomcat instance using wget
localhost:8091 and interestingly the wget just hung without any response
from tomcat.... Is this some weird tomcat issue which I cannot look into....
It is not tht my instance is heavily loaded as it happened also at a time
when traffic was really very low.... :(
Parag.
On Sun, Apr 20, 2008 at 6:51 PM, Parag Dhanuka <pa...@gmail.com>
wrote:
> I did a netstat -n and it seems that I am always having arnd 300-400
> connections to the port on which tomcat is listening to the proxy
>
>
> On Sun, Apr 20, 2008 at 6:32 PM, Parag Dhanuka <pa...@gmail.com>
> wrote:
>
> > Hi all,,
> >
> > I am using an apache server to act as a load balancer to my tomcat
> > server...
> >
> > I am using reverse proxy for doing this..
> > The major lines of change in my http conf are these
> >
> > <IfModule mod_proxy.c>
> > ProxyRequests Off
> >
> > <Proxy *>
> > Order deny,allow
> > Deny from all
> > Allow from all
> > SetEnv force-proxy-request-1.0 1
> > SetEnv proxy-nokeepalive 1
> > </Proxy>
> >
> > ProxyPass /blah http://localhost:8090/blah
> > ProxyPassReverse /blah http://localhost:8090/blah
> >
> > ProxyPass /blah http://localhost:8091/blah
> > ProxyPassReverse /blah http://localhost:8091/blah
> >
> >
> > My tomcat server conf has this line added with other appropriate changes
> >
> > <Connector
> > className="org.apache.catalina.connector.http.HttpConnector" port="8091"
> > maxKeepAliveRequests="1" protocol="HTTP/1.1"
> > proxyPort="80"/>
> >
> >
> > Now I am getting this error in my server logs which I have no idea as to
> > how to fix
> >
> > [Sun Apr 20 03:35:57 2008] [error] [client 66.249.85.88] proxy: error
> > reading status line from remote server localhost
> > [Sun Apr 20 03:35:57 2008] [error] [client 66.249.85.88] proxy: Error
> > reading from remote server returned by blah
> >
> > As soon as this error comes soon I am bombarded with errors like
> > (111)Connection refused: proxy: HTTP: attempt to connect to
> > 127.0.0.1:8091 (localhost) failed
> >
> > All tht I get on my webserver is a 500 response.... I am lost.... Please
> > help....I gooogled a lot and added
> > SetEnv force-proxy-request-1.0 1
> > SetEnv proxy-nokeepalive 1
> >
> > and also removed keepaliverequest from tomcat. but still I soon ended up
> > getting into this problem :(
> >
> > --
> > Parag Dhanuka
>
>
>
>
> --
> Parag Dhanuka
--
Parag Dhanuka