When it takes longer, it's typically due to a poorly constructed keyword search by the user that is causing Oracle to block for quite a while while it builds the results. This is an area I'm currently exploring now the reasons for the length of the requests is usually a federated search on a very large data-store that simply takes time, though usually returns within seconds. We DO have some long-running requests - some that, at times, will exceed beyond the 600s timeouts I outlined above.when monitoring the Tomcat instances remotely using jconsole, and I look at the ajp-apr-8009-exec-# threads to confirm this, and most are in a wait state while some I can see actively processing. I don't appear to have any thread deadlocking issues.This is an internal application servicing ~400 users, most of whom aren't on at the same times so the load shouldn't be the issue. (I never see the number of execution threads increase anywhere near the limit I set above). This is from observations of log activity, as well as verifying through the Apache Webserver server-status data, bolstered by thread activity via jconsole. It does not appear that the Tomcat server is getting overrun with requests from Apache.The application itself connects to Oracle via the Oracle ojdbc15_g JDBC driver, v11.2.0.3.0. All Tomcat workers, currently, are hosted under Windows on separate hosts.Īll hosts in my scenario are VMs in a robust production environment, with multiple cores devoted to each.Īpache Version: Server version: Apache/2.2.22 (Win32)Įach BalancerMember has these configuration parameters: keepalive=On timeout=600 ttl=600Įach Tomcat instance currently using the native connector (.AjpAprProtocol). My configuration is that I have a single Apache Webserver instance running in a Windows environment, with 4 Tomcat workers configured via AJP. Sometimes however the same server connection goes up/down many times this could be due to user behavior on the same (I use sticky sessions) but I haven't been able to confirm this. AH00992: ajp_read_header: ajp_ilink_receive failed, referer: (70007)The timeout specified has expired: AH00878: read response failed from 10.4.3.33:8009 (tomcatworkerX), referer: AH01167: balancer://lb: All workers are in error state for route (tomcatworkerX), referer: Users that go down see the "Server Unavailable" screen, but the connect restores after a few minutes. Below are just the latest links that have provided some information, none of which however seems to be working.ĭespite many configuration changes which I outline below I have not been able to prevent the errors, which appear in the log thusly: (70007)The timeout specified has expired: AH01030: ajp_ilink_receive() can't receive header IIS service is not installed in the server.To preface this, I've been all over the internet attempting to find a solution.the Apache Application server here works as a reverse proxy only.13:52:21 Commons Daemon procrun stdout initialized When I try to start the service it gives the below error: Same issue exists for Tomcat 8.0 service, it seems it stopped suddenly and.AH00430: Parent: Child process 1552 exited successfully. AH00364: Child: All worker threads have exited. AH00422: Parent: Received shutdown signal - Shutting down the server. I checked the Apache error logs and found the following: So this issue is related to the Application server "Apache", it looks like that the Apache service has stopped suddenly and when I tried to start the service it gives the below error:.I am trying to access my application through web but it gives the following error:īut it is accessible through the Windows Client app.
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