Hi Mark, > If you explicitly set crawlerUserAgents, that will be resolved. Thanks.
> > > 2) When using the ISAPI Redirector 1.2.32 and Tomcat Native 1.1.20 > which is > > included in the windows distribution, I get these errors when a > client makes > > a request to IIS which is redirected to Tomcat, resulting in 100% CPU > usage > > by tomcat's process: > > Under what circumstances? Some requests, all requests? The APR/native > AJP connector works with mod_jk and mod_proxy_ajp on linux so it looks > like either the ISAPI redirector is sending something unexpected that > isn't handled well or the windows specific code in the APR/native > connector isn't handling something. For this test, I downloaded the Tomcat 7.0.17 (windows 64 bit) and extracted it to a directory. I didn't changed anything in the Tomcat directory (also not the config files). I set the ISAPI Redirector 1.2.32 to redirect all requests to Tomcat on port 8009, using ajp13. I made this exact request multiple times to IIS: GET / HTTP/1.1 Host: localhost Connection: keep-alive This should be handled by the default Tomcat root webapp (which displays the Tomcat welcome page). The first 2-4 requests work (the number is not always the same), but then on the next request, Tomcat CPU usage goes up to 100% and the client never receives a response (then Tomcat displays the error "Critical poller failure" some multiple times). 03.07.2011 16:03:49 org.apache.tomcat.util.net.AprEndpoint$Poller run SCHWERWIEGEND: Critical poller failure (restarting poller): [610038] APR does not understand this error code In the isapi log, following lines appear (log_level=info): [Sun Jul 03 15:54:44.530 2011] [2908:2664] [info] init_jk::jk_isapi_plugin.c (2602): Starting Jakarta/ISAPI/isapi_redirector/1.2.32 () [Sun Jul 03 15:54:44.546 2011] [2908:2664] [info] init_jk::jk_isapi_plugin.c (2781): Jakarta/ISAPI/isapi_redirector/1.2.32 () initialized [Sun Jul 03 15:54:46.327 2011] [2908:1968] [error] ajp_connection_tcp_get_message::jk_ajp_common.c (1296): wrong message format 0x0000 from 127.0.0.1:8009 [Sun Jul 03 15:54:46.452 2011] [2908:1968] [error] ajp_get_reply::jk_ajp_common.c (2118): (worker1) Tomcat is down or refused connection. No response has been sent to the client (yet) [Sun Jul 03 15:54:46.452 2011] [2908:1968] [info] ajp_service::jk_ajp_common.c (2607): (worker1) sending request to tomcat failed (recoverable), because of protocol error (attempt=1) After this occurs, Tomcat doesn't respond to subsequent requests (sent via IIS). Then, on shutdown, Tomcat prints: 03.07.2011 16:07:27 org.apache.catalina.core.StandardServer await INFO: A valid shutdown command was received via the shutdown port. Stopping the Server instance. 03.07.2011 16:07:27 org.apache.coyote.AbstractProtocol pause INFO: Pausing ProtocolHandler [http-apr-8080] 03.07.2011 16:07:28 org.apache.coyote.AbstractProtocol pause INFO: Pausing ProtocolHandler [ajp-apr-8009] 03.07.2011 16:07:29 org.apache.catalina.core.StandardService stopInternal INFO: Stopping service Catalina 03.07.2011 16:07:29 org.apache.coyote.AbstractProtocol stop INFO: Stopping ProtocolHandler [http-apr-8080] After those lines are printed, it takes some time, then these lines are printed (a new line is printed every second until I kill the tomcat process): WARNUNG: Acceptor thread [http-apr-8080-Acceptor-0] failed to unlock. Forcing hard socket shutdown. 03.07.2011 16:08:30 org.apache.tomcat.util.net.AprEndpoint stopInternal WARNUNG: Acceptor thread [http-apr-8080-Acceptor-0] failed to unlock. Forcing hard socket shutdown. 03.07.2011 16:08:31 org.apache.tomcat.util.net.AprEndpoint stopInternal WARNUNG: Acceptor thread [http-apr-8080-Acceptor-0] failed to unlock. Forcing hard socket shutdown. 03.07.2011 16:08:32 org.apache.tomcat.util.net.AprEndpoint stopInternal WARNUNG: Acceptor thread [http-apr-8080-Acceptor-0] failed to unlock. Forcing hard socket shutdown. When I delete the Tomcat 7.0.17 and download the regular 7.0.16 (and extract it to the same directory, and don't change any of the Tomcat files), it works fine. Regards, Konstantin Preißer --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
