On Thu, Mar 14, 2013 at 12:00 PM, Thomas, Steve <stho...@vocollect.com>wrote:
>
> Running Tomcat 7.0.23 or 7.0.37 (32 or 64-bit) installed as a service
> (either via service.bat or the exe installer) on a Windows 7 64-bit OS, we
> are seeing an issue where the Windows shutdown kills Tomcat before our
> webapp shutdown sequence has time to execute fully.
(Specifically, we just want to make sure our instance of HSQLDB shuts down
> correctly, otherwise corruption can ensue.)
>
>
Few months ago, my web app was running on Windows Server 2003 R2, 32-bit
Client JVM and Tomcat versions 7.0.34 and 7.0.35. Within the last 3 months,
my web app has been running on Windows Server 2008 R2, 64-bit Server JVM,
and Tomcat version 7.0.35 and 7.0.37 (since I am running TomEE 1.5.2+).
anyway, Windows shutdown and restarted itself because of Windows Updates
(automatic updates) and i have experienced at least 1 power outage due to
storm(s), and my Apache Derby (embedded) has not corrupted yet, at all.
> Can we guarantee that Windows won't just kill our Tomcat process and
> potentially corrupt our database? That's the question.
>
>
Per my experience, when Windows shut down, it seems as though Windows
clicks the Stop button on the tomcat7w.exe window. It 'stops' or 'shuts
down' Tomcat....'normally'. And also, as I stated earlier, it does not
leave my database corrupted.
Now, prior to using TomEE/Tomcat, I used Glassfish 3.1+, and I came across
some shutdown hook code, and wanted to use it to 'shut down my database
normally'. Do I really need it? Honestly, I don't think so, but i get no
exceptions when shutting down the Apache Derby database, so I'll leave it
in my CDI @ApplicationScoped @PreDestroy method.
So, below is my log when Tomcat shut down normally, because Windows shut
down due to Windows Update (automatic) the other night. See below. The last
line below is when server restarted and TomEE/tomcat7 restarted, since
tomcat7 service starts...automatically.
Mar 13, 2013 1:42:24 AM jsf.users.pf_UsersController logout
INFO: pf_UsersController.logout(): administrator logged out at Wed Mar 13
01:42:24 EDT 2013
Mar 13, 2013 2:42:59 AM org.apache.openejb.cdi.CdiAppContextsService
lazyStartSessionContext
WARNING: Could NOT lazily initialize session context because of null
RequestContext
Mar 13, 2013 2:42:59 AM org.apache.openejb.cdi.CdiAppContextsService
lazyStartSessionContext
WARNING: Could NOT lazily initialize session context because of null
RequestContext
Mar 13, 2013 3:03:30 AM org.apache.coyote.AbstractProtocol pause
INFO: Pausing ProtocolHandler ["http-nio-8080"]
Mar 13, 2013 3:03:31 AM org.apache.coyote.AbstractProtocol pause
INFO: Pausing ProtocolHandler ["ajp-bio-8009"]
Mar 13, 2013 3:03:31 AM org.apache.catalina.core.StandardService
stopInternal
INFO: Stopping service Catalina
Mar 13, 2013 3:03:31 AM org.apache.openejb.assembler.classic.Assembler
destroyApplication
INFO: Undeploying app: D:\apache-tomee-plus-1.6.0-SNAPSHOT\webapps\mcmsweb
Mar 13, 2013 3:03:31 AM pf.ApplicationScopeBean destroy
INFO: ApplicationScopeBean.destroy() invoked
Mar 13, 2013 3:03:31 AM utils.database.DerbyUtil shutdown
INFO: DerbyUtil.java: shutdown() invoked
Mar 13, 2013 3:03:31 AM utils.database.DerbyUtil loadDriver
INFO: DerbyUtil.java: loadDriver(): Loaded driver
(org.apache.derby.jdbc.EmbeddedDriver) successfully
Mar 13, 2013 3:03:31 AM utils.database.DerbyUtil shutdown
INFO: DerbyUtil.java: shutdown(): Derby shut down normally
Mar 13, 2013 3:03:31 AM pf.ApplicationScopeBean destroy
INFO: ApplicationScopeBean.destroy(): gCalUtil.shutdown() completed
Mar 13, 2013 3:03:31 AM pf.ApplicationScopeBean destroy
INFO: ApplicationScopeBean.destroy(): jodConverter.shutdown() completed
Mar 13, 2013 3:03:31 AM mdb.ApplicationMessageBean shutdown
INFO: ApplicationMessageBean.shutdown() BEGIN
Mar 13, 2013 3:03:31 AM mdb.ApplicationMessageBean shutdown
INFO: ApplicationMessageBean.shutdown() END
Mar 13, 2013 3:03:31 AM pf.ApplicationScopeBean destroy
INFO: ApplicationScopeBean.destroy(): applicationMessageBean.shutdown()
completed
Mar 13, 2013 3:03:31 AM org.apache.activemq.ra.ActiveMQEndpointWorker stop
INFO: Stopping
Mar 13, 2013 3:03:31 AM org.apache.activemq.ra.ActiveMQEndpointWorker stop
INFO: Stopping
Mar 13, 2013 3:03:32 AM org.apache.catalina.loader.WebappClassLoader
clearReferencesThreads
SEVERE: The web application [/mcmsweb] appears to have started a thread
named [PoolIdleReleaseTimer] but has failed to stop it. This is very likely
to create a memory leak.
Mar 13, 2013 3:03:32 AM org.apache.catalina.loader.WebappClassLoader
clearReferencesThreads
SEVERE: The web application [/mcmsweb] appears to have started a thread
named [Default JMS Resource Adapter-worker-1] but has failed to stop it.
This is very likely to create a memory leak.
Mar 13, 2013 3:03:32 AM org.apache.catalina.loader.WebappClassLoader
clearReferencesThreads
SEVERE: The web application [/mcmsweb] appears to have started a thread
named [Default JMS Resource Adapter-worker-2] but has failed to stop it.
This is very likely to create a memory leak.
Mar 13, 2013 3:03:32 AM org.apache.catalina.loader.WebappClassLoader
clearReferencesThreads
SEVERE: The web application [/mcmsweb] appears to have started a thread
named [ActiveMQ VMTransport: vm://localhost#5-2] but has failed to stop it.
This is very likely to create a memory leak.
Mar 13, 2013 3:03:32 AM org.apache.catalina.loader.WebappClassLoader
clearReferencesThreads
SEVERE: The web application [/mcmsweb] appears to have started a thread
named [ActiveMQ VMTransport: vm://localhost#5-3] but has failed to stop it.
This is very likely to create a memory leak.
Mar 13, 2013 3:03:32 AM org.apache.catalina.loader.WebappClassLoader
clearReferencesThreads
SEVERE: The web application [/mcmsweb] appears to have started a thread
named [ActiveMQ VMTransport: vm://localhost#4-2] but has failed to stop it.
This is very likely to create a memory leak.
Mar 13, 2013 3:03:32 AM org.apache.catalina.loader.WebappClassLoader
checkThreadLocalMapForLeaks
SEVERE: The web application [/mcmsweb] created a ThreadLocal with key of
type [com.google.gson.Gson$1] (value [com.google.gson.Gson$1@75e3139d]) and
a value of type [java.util.HashMap] (value [{}]) but failed to remove it
when the web application was stopped. Threads are going to be renewed over
time to try and avoid a probable memory leak.
Mar 13, 2013 3:03:32 AM org.apache.catalina.loader.WebappClassLoader
checkThreadLocalMapForLeaks
SEVERE: The web application [/mcmsweb] created a ThreadLocal with key of
type [com.google.api.client.util.escape.Platform$1] (value
[com.google.api.client.util.escape.Platform$1@f1ce4e2]) and a value of type
[char[]] (value [[C@31f6b92e]) but failed to remove it when the web
application was stopped. Threads are going to be renewed over time to try
and avoid a probable memory leak.
Mar 13, 2013 3:03:33 AM org.apache.coyote.AbstractProtocol stop
INFO: Stopping ProtocolHandler ["http-nio-8080"]
Mar 13, 2013 3:03:33 AM org.apache.coyote.AbstractProtocol stop
INFO: Stopping ProtocolHandler ["ajp-bio-8009"]
Mar 13, 2013 3:03:33 AM org.apache.openejb.server.SimpleServiceManager stop
INFO: Stopping server services
Mar 13, 2013 3:03:33 AM org.quartz.core.QuartzScheduler shutdown
INFO: Scheduler OpenEJB-TimerService-Scheduler_$_OpenEJB shutting down.
Mar 13, 2013 3:03:33 AM org.quartz.core.QuartzScheduler standby
INFO: Scheduler OpenEJB-TimerService-Scheduler_$_OpenEJB paused.
Mar 13, 2013 3:03:33 AM org.quartz.core.QuartzScheduler unregisterJMX
INFO: Scheduler unregistered from name
'quartz:type=QuartzScheduler,name=OpenEJB-TimerService-Scheduler,instance=OpenEJB'
in the local MBeanServer.
Mar 13, 2013 3:03:33 AM org.apache.openejb.assembler.classic.Assembler
destroyApplication
INFO: Undeploying app: openejb
Mar 13, 2013 3:03:33 AM org.quartz.core.QuartzScheduler shutdown
INFO: Scheduler OpenEJB-TimerService-Scheduler_$_OpenEJB shutdown complete.
Mar 13, 2013 3:03:33 AM org.apache.openejb.assembler.classic.Assembler
destroyResource
INFO: Stopping ResourceAdapter: Default JMS Resource Adapter
Mar 13, 2013 3:03:33 AM
org.apache.openejb.resource.activemq.ActiveMQResourceAdapter stop
INFO: Stopping ActiveMQ
Mar 13, 2013 3:03:35 AM
org.apache.openejb.resource.activemq.ActiveMQResourceAdapter stopImpl
INFO: Stopped ActiveMQ broker
Mar 13, 2013 3:03:35 AM org.apache.openejb.assembler.classic.Assembler
destroyResource
INFO: Closing DataSource: Default Unmanaged JDBC Database
2013-03-13 03:06:01 Commons Daemon procrun stderr initialized
