Mark/Chris,
Upgraded to dbcp2 with no luck, and get this in the dumps, repeating
pattern.
"ajp-nio-8009-exec-28" #60 daemon prio=5 os_prio=0 tid=0x00002b28245c3800
nid=0x2a02 waiting on condition [0x00002b28316aa000]
java.lang.Thread.State: WAITING (parking)
at sun.misc.Unsafe.park(Native Method)
- parking to wait for <0x00000000d1026878> (a
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
at
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
at
org.apache.commons.pool2.impl.LinkedBlockingDeque.takeFirst(LinkedBlockingDeque.java:583)
at
org.apache.commons.pool2.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:442)
at
org.apache.commons.pool2.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:363)
at
org.apache.commons.dbcp2.PoolingDataSource.getConnection(PoolingDataSource.java:134)
at
org.apache.commons.dbcp2.BasicDataSource.getConnection(BasicDataSource.java:1533)
at
org.hibernate.engine.jdbc.connections.internal.DatasourceConnectionProviderImpl.getConnection(DatasourceConnectionProviderImpl.java:122)
at
org.hibernate.internal.NonContextualJdbcConnectionAccess.obtainConnection(NonContextualJdbcConnectionAccess.java:35)
at
org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.acquireConnectionIfNeeded(LogicalConnectionManagedImpl.java:99)
at
org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.getPhysicalConnection(LogicalConnectionManagedImpl.java:129)
at
org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.getConnectionForTransactionManagement(LogicalConnectionManagedImpl.java:247)
at
org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.begin(LogicalConnectionManagedImpl.java:254)
at
org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl$TransactionDriverControlImpl.begin(JdbcResourceLocalTransactionCoordinatorImpl.java:203)
at
org.hibernate.engine.transaction.internal.TransactionImpl.begin(TransactionImpl.java:56)
at
org.hibernate.internal.AbstractSharedSessionContract.beginTransaction(AbstractSharedSessionContract.java:401)
at sun.reflect.GeneratedMethodAccessor83.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at
org.hibernate.context.internal.ThreadLocalSessionContext$TransactionProtectionWrapper.invoke(ThreadLocalSessionContext.java:355)
at com.sun.proxy.$Proxy65.beginTransaction(Unknown Source)
at
org.events.business.hibernate.HibernatePersistenceStrategy.getSession(HibernatePersistenceStrategy.java:99)
at
org.events.business.hibernate.HibernateWebsiteManagerImpl.getWebsiteDetailByHandle(HibernateWebsiteManagerImpl.java:319)
at
org.events.business.WebsiteManagerImpl.getWebsiteByHandle(WebsiteManagerImpl.java:252)
at
org.events.business.WebsiteManagerImpl.checkWebsiteByHandle(WebsiteManagerImpl.java:170)
at
org.events.ui.rendering.WebsiteRequestMapper.isWebsite(WebsiteRequestMapper.java:389)
at
org.events.ui.rendering.WebsiteRequestMapper.handleRequest(WebsiteRequestMapper.java:118)
at
org.events.ui.rendering.filters.RequestMappingFilter.doFilter(RequestMappingFilter.java:107)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
at
org.events.ui.rendering.filters.DeviceResolverRequestFilter.doFilterInternal(DeviceResolverRequestFilter.java:62)
at
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
at org.events.ui.core.filters.InitFilter.doFilter(InitFilter.java:57)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
at
org.events.ui.core.filters.PersistenceSessionFilter.doFilter(PersistenceSessionFilter.java:36)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:317)
at
org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:127)
at
org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:91)
at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at
org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:114)
at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at
org.events.ui.core.security.sso.filter.SSOAuthenticationFilter.doFilter(SSOAuthenticationFilter.java:121)
at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at
org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:137)
at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at
org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:111)
at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at
org.springframework.security.web.authentication.rememberme.RememberMeAuthenticationFilter.doFilter(RememberMeAuthenticationFilter.java:150)
at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at
org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:170)
at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at
org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63)
at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at
org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:200)
at
org.events.ui.core.security.EventsUsernamePasswordAuthenticationFilter.doFilter(EventsUsernamePasswordAuthenticationFilter.java:53)
at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at
org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:56)
at
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at
org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:105)
at
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at
org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:214)
at
org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:177)
at
org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346)
at
org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:262)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
at
org.events.ui.core.filters.SchemeEnforcementFilter.doFilter(SchemeEnforcementFilter.java:117)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
at
org.events.ui.core.filters.CharEncodingFilter.doFilter(CharEncodingFilter.java:62)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
at
org.apache.logging.log4j.web.Log4jServletFilter.doFilter(Log4jServletFilter.java:71)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:349)
at org.apache.coyote.ajp.AjpProcessor.service(AjpProcessor.java:478)
at
org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
at
org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:789)
at
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1437)
at
org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
- locked <0x00000000f0d0a698> (a
org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)
and in my tomcat.out I get for the shut down:
24-Dec-2016 10:52:39.196 INFO [Thread-7]
org.apache.coyote.AbstractProtocol.pause Pausing ProtocolHandler
["http-nio-8080"]
24-Dec-2016 10:52:39.251 INFO [Thread-7]
org.apache.coyote.AbstractProtocol.pause Pausing ProtocolHandler
["ajp-nio-8009"]
24-Dec-2016 10:52:39.304 INFO [Thread-7]
org.apache.catalina.core.StandardService.stopInternal Stopping service
Catalina
24-Dec-2016 10:52:39.382 INFO [localhost-startStop-2]
org.apache.catalina.core.StandardWrapper.unload Waiting for 2 instance(s)
to be deallocated for Servlet [jsp]
24-Dec-2016 10:52:40.403 INFO [localhost-startStop-2]
org.apache.catalina.core.StandardWrapper.unload Waiting for 2 instance(s)
to be deallocated for Servlet [jsp]
24-Dec-2016 10:52:41.414 INFO [localhost-startStop-2]
org.apache.catalina.core.StandardWrapper.unload Waiting for 2 instance(s)
to be deallocated for Servlet [jsp]
24-Dec-2016 10:52:41.549 INFO [localhost-startStop-2]
org.apache.catalina.core.StandardWrapper.unload Waiting for 65 instance(s)
to be deallocated for Servlet [default]
24-Dec-2016 10:52:42.561 INFO [localhost-startStop-2]
org.apache.catalina.core.StandardWrapper.unload Waiting for 65 instance(s)
to be deallocated for Servlet [default]
24-Dec-2016 10:52:43.572 INFO [localhost-startStop-2]
org.apache.catalina.core.StandardWrapper.unload Waiting for 65 instance(s)
to be deallocated for Servlet [default]
24-Dec-2016 10:52:43.766 INFO [localhost-startStop-2]
org.apache.catalina.core.StandardWrapper.unload Waiting for 9 instance(s)
to be deallocated for Servlet [PageServlet]
24-Dec-2016 10:52:44.780 INFO [localhost-startStop-2]
org.apache.catalina.core.StandardWrapper.unload Waiting for 9 instance(s)
to be deallocated for Servlet [PageServlet]
24-Dec-2016 10:52:45.790 INFO [localhost-startStop-2]
org.apache.catalina.core.StandardWrapper.unload Waiting for 9 instance(s)
to be deallocated for Servlet [PageServlet]
Cheers Greg
On 22 December 2016 at 20:26, Mark Thomas <ma...@apache.org> wrote:
> On 22/12/2016 17:50, Greg Huber wrote:
> > Chris,
> >
> > Thanks, I have been running this setup for ages, 8 plus years and various
> > tomcat versions. It has never failed on <= 8.0.x I had to stop/start a
> > couple of times to get it to fail and had to run a parallel maven build
> to
> > slow things down.
> >
> > Do not read much on dumps, but what would this -locked be?
>
> It is perfectly normal.
>
> Your problem is with the connection pool.
>
> Note that when Tomcat switched form DBCP1 to DBCP2, some of the names of
> the attributes changed. You might not be using the settings you think
> you are using. Please post your resource config.
>
> Mark
>
> >
> > at
> > org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.
> doRun(NioEndpoint.java:1437)
> > at
> > org.apache.tomcat.util.net.SocketProcessorBase.run(
> SocketProcessorBase.java:49)
> > - locked <0x00000000f1c54ed8> (a
> > org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper)
> > at
> > java.util.concurrent.ThreadPoolExecutor.runWorker(
> ThreadPoolExecutor.java:1142)
> > at
> > java.util.concurrent.ThreadPoolExecutor$Worker.run(
> ThreadPoolExecutor.java:617)
> > at
> > org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(
> TaskThread.java:61)
> > at java.lang.Thread.run(Thread.java:745)
> >
> > Cheers Greg
> >
> >
> > On 22 December 2016 at 16:24, Christopher Schultz <
> > ch...@christopherschultz.net> wrote:
> >
> > Greg,
> >
> > On 12/22/16 5:18 AM, Greg Huber wrote:
> >>>> Here is the first dump and I cannot send all three. Its my prod
> >>>> server which is locked up at the moment. I need to get it back on
> >>>> line so is this enough info? I can emile the whole file which has
> >>>> the three dumps if needed.
> >>>>
> >>>> [snip]
> >>>>
> >>>> Full thread dump Java HotSpot(TM) 64-Bit Server VM (25.40-b25 mixed
> >>>> mode):
> >>>>
> >>>> "ajp-nio-8009-exec-26" #61 daemon prio=5 os_prio=0
> >>>> tid=0x000000000cb10000 nid=0x1960 in Object.wait()
> >>>> [0x00002ba658a4b000] java.lang.Thread.State: WAITING (on object
> >>>> monitor) at java.lang.Object.wait(Native Method) at
> >>>> java.lang.Object.wait(Object.java:502) at
> >>>> org.apache.commons.pool.impl.GenericObjectPool.
> borrowObject(GenericObj
> > ectPool.java:1104)
> >>>>
> >>>>
> > - locked <0x00000000f2879c10> (a
> >>>> org.apache.commons.pool.impl.GenericObjectPool$Latch)
> >
> > Waiting on a database connection.
> >
> >
> >>>> "ajp-nio-8009-exec-25" #60 daemon prio=5 os_prio=0
> >>>> tid=0x000000000c74f800 nid=0x195d in Object.wait()
> >>>> [0x00002ba658a0a000] java.lang.Thread.State: WAITING (on object
> >>>> monitor) at java.lang.Object.wait(Native Method) at
> >>>> java.lang.Object.wait(Object.java:502) at
> >>>> org.apache.commons.pool.impl.GenericObjectPool.
> borrowObject(GenericObj
> > ectPool.java:1104)
> >>>>
> >>>>
> > - locked <0x00000000f2852128> (a
> >>>> org.apache.commons.pool.impl.GenericObjectPool$Latch)
> >
> > Another thread waiting for a db connection.
> >
> >>>> "ajp-nio-8009-exec-24" #59 daemon prio=5 os_prio=0
> >>>> tid=0x000000000dd3b000 nid=0x1959 in Object.wait()
> >>>> [0x00002ba6589c9000] java.lang.Thread.State: WAITING (on object
> >>>> monitor) at java.lang.Object.wait(Native Method) at
> >>>> java.lang.Object.wait(Object.java:502) at
> >>>> org.apache.commons.pool.impl.GenericObjectPool.
> borrowObject(GenericObj
> > ectPool.java:1104)
> >>>>
> >>>>
> > - locked <0x00000000f282a818> (a
> >>>> org.apache.commons.pool.impl.GenericObjectPool$Latch)
> >
> > I'm starting to see a pattern, here.
> >
> >>>> "ajp-nio-8009-exec-23" #58 daemon prio=5 os_prio=0
> >>>> tid=0x000000000cbe6000 nid=0x1953 in Object.wait()
> >>>> [0x00002ba658988000] java.lang.Thread.State: WAITING (on object
> >>>> monitor) at java.lang.Object.wait(Native Method) at
> >>>> java.lang.Object.wait(Object.java:502) at
> >>>> org.apache.commons.pool.impl.GenericObjectPool.
> borrowObject(GenericObj
> > ectPool.java:1104)
> >>>>
> >>>>
> > - locked <0x00000000f28030f8> (a
> >>>> org.apache.commons.pool.impl.GenericObjectPool$Latch)
> >
> > Hmm. Could it be...
> >
> >>>> "ajp-nio-8009-exec-22" #57 daemon prio=5 os_prio=0
> >>>> tid=0x000000000e797800 nid=0x194f in Object.wait()
> >>>> [0x00002ba659472000] java.lang.Thread.State: WAITING (on object
> >>>> monitor) at java.lang.Object.wait(Native Method) at
> >>>> java.lang.Object.wait(Object.java:502) at
> >>>> org.apache.commons.pool.impl.GenericObjectPool.
> borrowObject(GenericObj
> > ectPool.java:1104)
> >>>>
> >>>>
> > - locked <0x00000000f27daf28> (a
> >>>> org.apache.commons.pool.impl.GenericObjectPool$Latch)
> >
> > ... just possibly ...
> >
> >>>> "ajp-nio-8009-exec-21" #56 daemon prio=5 os_prio=0
> >>>> tid=0x000000000e874000 nid=0x194d in Object.wait()
> >>>> [0x00002ba656c67000] java.lang.Thread.State: WAITING (on object
> >>>> monitor) at java.lang.Object.wait(Native Method) at
> >>>> java.lang.Object.wait(Object.java:502) at
> >>>> org.apache.commons.pool.impl.GenericObjectPool.
> borrowObject(GenericObj
> > ectPool.java:1104)
> >>>>
> >>>>
> > - locked <0x00000000f27b3d20> (a
> >>>> org.apache.commons.pool.impl.GenericObjectPool$Latch)
> >
> > ... that you have run out of ...
> >
> >>>> "QuartzScheduler_scheduler-NON_CLUSTERED_MisfireHandler" #55
> >>>> prio=5 os_prio=0 tid=0x000000000cbe5000 nid=0x194b waiting on
> >>>> condition [0x00002ba658c50000] java.lang.Thread.State:
> >>>> TIMED_WAITING (sleeping) at java.lang.Thread.sleep(Native Method)
> >>>> at
> >>>> org.quartz.impl.jdbcjobstore.JobStoreSupport$
> MisfireHandler.run(JobSto
> > reSupport.java:3992)
> >
> > (Quartz
> >>>>
> > waiting around for some event. Ignore this one in erms of my
> > overarching narrative.)
> >
> >>>> "ajp-nio-8009-exec-20" #54 daemon prio=5 os_prio=0
> >>>> tid=0x000000000e44f000 nid=0x194a in Object.wait()
> >>>> [0x00002ba658948000] java.lang.Thread.State: WAITING (on object
> >>>> monitor) at java.lang.Object.wait(Native Method) at
> >>>> java.lang.Object.wait(Object.java:502) at
> >>>> org.apache.commons.pool.impl.GenericObjectPool.
> borrowObject(GenericObj
> > ectPool.java:1104)
> >>>>
> >>>>
> > - locked <0x00000000f1f541b8> (a
> >>>> org.apache.commons.pool.impl.GenericObjectPool$Latch)
> >
> > Database connections?
> >
> >>>> "ajp-nio-8009-exec-19" #53 daemon prio=5 os_prio=0
> >>>> tid=0x000000000cc2e800 nid=0x1940 in Object.wait()
> >>>> [0x00002ba658908000] java.lang.Thread.State: RUNNABLE at
> >>>> org.events.ui.core.filters.IPBanFilter.doFilter(IPBanFilter.java:36)
> >
> > Ooh!
> >>>>
> > This one is doing something different. I suspect any ms it will
> > ask for another db connection.
> >
> >>>> "ajp-nio-8009-exec-18" #52 daemon prio=5 os_prio=0
> >>>> tid=0x000000000cc7b800 nid=0x1933 in Object.wait()
> >>>> [0x00002ba6588c6000] java.lang.Thread.State: WAITING (on object
> >>>> monitor) at java.lang.Object.wait(Native Method) at
> >>>> java.lang.Object.wait(Object.java:502) at
> >>>> org.apache.commons.pool.impl.GenericObjectPool.
> borrowObject(GenericObj
> > ectPool.java:1104)
> >>>>
> >>>>
> > - locked <0x00000000f1d766c0> (a
> >>>> org.apache.commons.pool.impl.GenericObjectPool$Latch)
> >
> > That's more like it.
> >
> >>>> "ajp-nio-8009-exec-17" #51 daemon prio=5 os_prio=0
> >>>> tid=0x000000000cb83000 nid=0x1930 in Object.wait()
> >>>> [0x00002ba658885000] java.lang.Thread.State: WAITING (on object
> >>>> monitor) at java.lang.Object.wait(Native Method) at
> >>>> java.lang.Object.wait(Object.java:502) at
> >>>> org.apache.commons.pool.impl.GenericObjectPool.
> borrowObject(GenericObj
> > ectPool.java:1104)
> >>>>
> >>>>
> > - locked <0x00000000f1d4e918> (a
> >>>> org.apache.commons.pool.impl.GenericObjectPool$Latch)
> >
> > I'm reminded of a Far Side cartoon.
> > [http://grahammercer.com.au/humour/GodMakesTheSnake.jpg]
> >
> >>>> "ajp-nio-8009-exec-16" #50 daemon prio=5 os_prio=0
> >>>> tid=0x000000000ea8b000 nid=0x192e in Object.wait()
> >>>> [0x00002ba658ed7000] java.lang.Thread.State: RUNNABLE at
> >>>> org.events.ui.core.filters.IPBanFilter.doFilter(IPBanFilter.java:36)
> >
> > Another
> >>>>
> > thread caught in the filter. Filters are usually quick, so I
> > think this is a transient state. Probably about to request a database
> > connection.
> >
> >>>> "ajp-nio-8009-exec-15" #49 daemon prio=5 os_prio=0
> >>>> tid=0x000000000c92a000 nid=0x1928 in Object.wait()
> >>>> [0x00002ba65452d000] java.lang.Thread.State: RUNNABLE at
> >>>> org.events.ui.core.filters.IPBanFilter.doFilter(IPBanFilter.java:36)
> >
> > Here,
> >>>>
> > too.
> >
> >
> > Okay, I'm done reading the thread dump.
> >
> > Have a look at your database pool's size and "active" counts[1]. You
> > may find that your application is locked-up waiting on db connections.
> > you may have a resource leak (db connections).
> >
> > -chris
> >
> > [1]
> > http://people.apache.org/~schultz/ApacheCon%20NA%202016/Monitoring%20Apa
> > che%20Tomcat%20with%20JMX.pdf,
> > slide 16
> >>
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