André Warnier wrote: > Ofer Israeli wrote: >> All, >> >> I have a deployment on Windows 2003 Server using Apache 2.2.16, >> Tomcat 5.5.30 and mod_jk 1.2.31. Apache and Tomcat reside on the >> same machine. The communication is fine for days / weeks, but at >> some point all requests to the server (to Apache) that use mod_jk >> return HTTP 503. The error that shows up in mod_jk.log is: [Mon Feb >> 20 12:07:01.464 2012] [7280:6912] [error] >> ajp_send_request::jk_ajp_common.c (1610): (all) failed sending >> request on a fresh connection (recoverable), socket -1 (errno=54) >> [Mon Feb 20 12:07:01.464 2012] [7280:6912] [error] >> ajp_service::jk_ajp_common.c (2562): (all) connecting to tomcat >> failed. >> >> I've done a packet capture and I see that Apache initiates the 3-way >> handshake with Tomcat which looks fine and immediately after the >> connection is established, Tomcat sends a FIN packet to Apache >> whereby both sides gracefully close the connection. >> >> Have any of you encountered this before? >> >> Do you have any idea what debug logs I can turn on to get further >> information without bringing down the server so that we don't loose >> this situation? >> >> > Hi. > It sounds unlikely that you would have done a permanent packet > capture during days/weeks, just waiting for this to happen. So what > made you decide when to start your packet capture, or how do you > force the problem to happen when you have started your packet capture > ? > Hi Andre, I do not have a permenant packet capture, but rather now I am in the situation where the server is giving 503s for all incoming requests, so I did a capture now to see what the situation is and as mentioned above I see Tomcat FINing the connections right away before mod_jk sends any content (putting aside the connection establishment).
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