I suspect it's a windows specific return code from recv(). The code in question calls socket_recvfull - which in turn calls recv() to fill a buffer. It handles EAGAIN - but knowing windows, it may be something else.
If you can do a checkout from HEAD and built again - you should see the errno at the end of the message, so we can figure out what happens. The first error is the one that matters - the others are just jk doing a retry. The message is bad - err=0,1,2 should be "retry=0,1,2" Costin Oxley, David wrote: > I have some strange error messages in mod_jk.log that I cannot explain, > and that I need to resolve urgently. > > Server: > Dual Xeon 2.5Ghz server. > Windows 2000 Professional SP3 > Apache 2.0.44 > Tomcat 4.1.18 > Mod_jk 1.2.2 > > [Mon Feb 17 14:49:38 2003] [jk_ajp_common.c (681)]: ERROR: can't receive > the response message from tomcat, network problems or tomcat is down. > [Mon Feb 17 14:49:38 2003] [jk_ajp_common.c (1050)]: Error reading reply > from tomcat. Tomcat is down or network problems. > [Mon Feb 17 14:49:38 2003] [jk_ajp_common.c (1187)]: ERROR: Receiving > [from > tomcat failed, recoverable operation. err=0 > [Mon Feb 17 14:49:38 2003] [jk_ajp_common.c (681)]: ERROR: can't receive > the response message from tomcat, network problems or tomcat is down. > [Mon Feb 17 14:49:38 2003] [jk_ajp_common.c (1050)]: Error reading reply > from tomcat. Tomcat is down or network problems. > [Mon Feb 17 14:49:38 2003] [jk_ajp_common.c (1187)]: ERROR: Receiving > [from > tomcat failed, recoverable operation. err=1 > [Mon Feb 17 14:49:38 2003] [jk_ajp_common.c (681)]: ERROR: can't receive > the response message from tomcat, network problems or tomcat is down. > [Mon Feb 17 14:49:38 2003] [jk_ajp_common.c (1050)]: Error reading reply > from tomcat. Tomcat is down or network problems. > [Mon Feb 17 14:49:38 2003] [jk_ajp_common.c (1187)]: ERROR: Receiving > [from > tomcat failed, recoverable operation. err=2 > [Mon Feb 17 14:49:38 2003] [jk_ajp_common.c (1198)]: Error connecting to > tomcat. Tomcat is probably not started or is listenning on the wrong port. > Failed errno = 0 > > > > The line 'ERROR: Receiving from tomcat failed, recoverable operation. > err=0' happens all the time but when the above happens i.e. err=0 -> err=1 > -> err=2 the browser is returned an error 500. I have a much slower box > (P4 1.7Ghz) that gets the err=0 line all the time but never gets the err=1 > and err=2 lines and therefore never responds with an error 500. > > I have a feeling that there is a retry that is happening but the box is so > quick the threads on the Tomcat side aren't refreshed before Apache gives > up. If this can be fixed by changing the config files then I think this > should be noted in the docs otherwise this is a bug!?!? > > > > Here is the relevant parts of the config. > > Server.xml: > > <Connector className="org.apache.coyote.tomcat4.CoyoteConnector" > > port="8009" minProcessors="5" maxProcessors="75" > > enableLookups="true" redirectPort="443" > > acceptCount="10" debug="0" connectionTimeout="20000" > > useURIValidationHack="false" > > > protocolHandlerClassName="org.apache.jk.server.JkCoyoteHandler"/> > > workers.properties: > > worker.ajp13.port=8009 > > worker.ajp13.host=localhost > > worker.ajp13.type=ajp13 > > worker.ajp13.lbfactor=1 > > worker.ajp13.cachesize=10 > > worker.ajp13.cache_timeout=600 > > > > Thanks for your help. > > > > Dave Oxley > Development Team Leader > > Workplace Systems Plc > * +44 (0)118 9515 755 > * <mailto:[EMAIL PROTECTED]> > [EMAIL PROTECTED] > * <http://www.workplace-systems.plc.uk/> > http://www.workplace-systems.plc.uk > > > > There was once a young man who, in his youth, professed his desire to > become a great writer. > When asked to define great, he said, "I want to write stuff that the whole > world will read, stuff that people will react to on a truly emotional > level, stuff that will make them scream, cry, howl in pain and anger!" > He now works for Microsoft writing error messages. > > > > Workplace Systems plc, Precedent Drive, Rooksley, Milton Keynes, MK13 8PP. > Registered in England No. 2016236 > > Unless expressly stated the views expressed in this email may not be the > views of Workplace Systems plc and the company, its directors, officers or > employees accept no liability for its contents. 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