I have a java web application running in Glassfish 3.1.1 on port 8080. I have Apache running on the same server on port 80 acting as a reverse proxy (using ajp) to Glassfish. Here is my configuration (and forgive the formatting but the pre tags don't seem to work on this forum):
In glassfish:
network-listener port="8009" protocol="http-listener-1" transport="tcp" name="jk-connector" jk-enabled="true" thread-pool="http-thread-pool"
In apache:
ProxyRequests Off
ProxyPass /client ajp://10.72.8.167:8009/client timeout=1200 ttl=1200
The problem occurs when I have around 10-15 concurrent connections I start seeing server unavailable messages in client browsers and this in the logs:
In glassfish domain log:
[#|2013-03-28T10:02:15.742-0500|SEVERE|glassfish3.1.1|org.apache.tomcat.util.threads.ThreadPool|_ThreadID=22;_ThreadName=Thread-2;|threadpool.busy|#]
In apache error_log:
[Thu Mar 28 10:13:01 2013] [error] (104)Connection reset by peer: ajp_ilink_receive() can't receive header
[Thu Mar 28 10:13:01 2013] [error] ajp_read_header: ajp_ilink_receive failed
[Thu Mar 28 10:13:01 2013] [error] (120006)APR does not understand this error code: proxy: read response failed from (null) (10.72.8.167)
[Thu Mar 28 10:13:13 2013] [error] (104)Connection reset by peer: ajp_ilink_receive() can't receive header
[Thu Mar 28 10:13:13 2013] [error] ajp_read_header: ajp_ilink_receive failed
[Thu Mar 28 10:13:13 2013] [error] (120006)APR does not understand this error code: proxy: read response failed from (null) (10.72.8.167)
[Thu Mar 28 10:13:35 2013] [error] (104)Connection reset by peer: ajp_ilink_receive() can't receive header
[Thu Mar 28 10:13:35 2013] [error] ajp_read_header: ajp_ilink_receive failed
[Thu Mar 28 10:13:35 2013] [error] (120006)APR does not understand this error code: proxy: read response failed from 10.72.8.167:8009 (10.72.8.167)
[Thu Mar 28 10:15:14 2013] [error] ap_proxy_connect_backend disabling worker for (10.72.8.167)
[Thu Mar 28 10:15:14 2013] [error] proxy: AJP: failed to make connection to backend: 10.72.8.167
[Thu Mar 28 10:15:15 2013] [error] (104)Connection reset by peer: ajp_ilink_receive() can't receive header
[Thu Mar 28 10:15:15 2013] [error] ajp_read_header: ajp_ilink_receive failed
[Thu Mar 28 10:15:15 2013] [error] (120006)APR does not understand this error code: proxy: read response failed from (null) (10.72.8.167)
[Thu Mar 28 10:15:17 2013] [error] (104)Connection reset by peer: ajp_ilink_receive() can't receive header
[Thu Mar 28 10:15:17 2013] [error] ajp_read_header: ajp_ilink_receive failed
[Thu Mar 28 10:15:17 2013] [error] (120006)APR does not understand this error code: proxy: read response failed from (null) (10.72.8.167)
[Thu Mar 28 10:15:18 2013] [error] proxy: AJP: disabled connection for (10.72.8.167)
[Thu Mar 28 10:15:18 2013] [error] (104)Connection reset by peer: ajp_ilink_receive() can't receive header
[Thu Mar 28 10:15:18 2013] [error] ajp_read_header: ajp_ilink_receive failed
[Thu Mar 28 10:15:18 2013] [error] (120006)APR does not understand this error code: proxy: read response failed from (null) (10.72.8.167)
[Thu Mar 28 10:15:18 2013] [error] proxy: AJP: disabled connection for (10.72.8.167)
[Thu Mar 28 10:15:19 2013] [error] (104)Connection reset by peer: ajp_ilink_receive() can't receive header
[Thu Mar 28 10:15:19 2013] [error] ajp_read_header: ajp_ilink_receive failed
[Thu Mar 28 10:15:19 2013] [error] (120006)APR does not understand this error code: proxy: read response failed from (null) (10.72.8.167)
[Thu Mar 28 10:15:24 2013] [error] (104)Connection reset by peer: ajp_ilink_receive() can't receive header
[Thu Mar 28 10:15:24 2013] [error] ajp_read_header: ajp_ilink_receive failed
[Thu Mar 28 10:15:24 2013] [error] (120006)APR does not understand this error code: proxy: read response failed from (null) (10.72.8.167)
[Thu Mar 28 10:15:24 2013] [error] proxy: AJP: disabled connection for (10.72.8.167)
[Thu Mar 28 10:15:24 2013] [error] proxy: AJP: disabled connection for (10.72.8.167)
[Thu Mar 28 10:15:24 2013] [error] proxy: AJP: disabled connection for (10.72.8.167)
[Thu Mar 28 10:15:24 2013] [error] proxy: AJP: disabled connection for (10.72.8.167)
[Thu Mar 28 10:15:24 2013] [error] proxy: AJP: disabled connection for (10.72.8.167)
[Thu Mar 28 10:15:24 2013] [error] proxy: AJP: disabled connection for (10.72.8.167)
[Thu Mar 28 10:15:28 2013] [error] (104)Connection reset by peer: ajp_ilink_receive() can't receive header
[Thu Mar 28 10:15:28 2013] [error] ajp_read_header: ajp_ilink_receive failed
Can anyone help me figure this out or where to go from here?
Thanks