Services stops running

[Acrux]

On a Pentium IV 2,53 GHZ with 1 GB Ram I installed Zimbra 3.1.4 opensource on Suse OSS 10

Sometimes some services of zimbra stop working, this happens on diffirent times. (Tomcat, Antivirus, Mailbox). Just starting the services is enough, and the problems are solved for a while.

Everyday 3 or 4 times I see the following error in the /opt/zimbra/log/zimbra.log:

2006-08-21 12:07:08,793 WARN  [http-443-Processor99] [] [SoapServlet] - Servlet.service() for servlet SoapServlet threw exception
java.net.SocketTimeoutException: Read timed out
        at java.net.SocketInputStream.socketRead0(Native Method)
        at java.net.SocketInputStream.read(SocketInputStream.java:129)
        at com.sun.net.ssl.internal.ssl.InputRecord.readFully(InputRecord.java:284)
        at com.sun.net.ssl.internal.ssl.InputRecord.read(InputRecord.java:319)
        at com.sun.net.ssl.internal.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:720)
        at com.sun.net.ssl.internal.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:677)
        at com.sun.net.ssl.internal.ssl.AppInputStream.read(AppInputStream.java:75)
        at org.apache.coyote.http11.InternalInputBuffer.fill(InternalInputBuffer.java:747)
        at org.apache.coyote.http11.InternalInputBuffer$InputStreamInputBuffer.doRead(InternalInputBuffer.java:777)
        at org.apache.coyote.http11.filters.IdentityInputFilter.doRead(IdentityInputFilter.java:115)
        at org.apache.coyote.http11.InternalInputBuffer.doRead(InternalInputBuffer.java:712)
        at org.apache.coyote.Request.doRead(Request.java:423)
        at org.apache.catalina.connector.InputBuffer.realReadBytes(InputBuffer.java:283)
        at org.apache.tomcat.util.buf.ByteChunk.substract(ByteChunk.java:404)
        at org.apache.catalina.connector.InputBuffer.read(InputBuffer.java:298)
        at org.apache.catalina.connector.CoyoteInputStream.read(CoyoteInputStream.java:192)
        at com.zimbra.cs.servlet.ZimbraServlet.readFully(ZimbraServlet.java:176)
        at com.zimbra.soap.SoapServlet.doPost(SoapServlet.java:213)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
        at com.zimbra.cs.servlet.ZimbraServlet.service(ZimbraServlet.java:154)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
        at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:541)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
        at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:667)
        at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
        at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
        at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
        at java.lang.Thread.run(Thread.java:595)

And this morning Tomcat stoppped working:

2006-08-21 05:31:50,394 INFO  [main] [] StatsImageServlet - Servlet StatsImageServlet shutting down
2006-08-21 05:31:50,395 INFO  [main] [] soap - Servlet AdminServlet shutting down
2006-08-21 05:31:50,396 INFO  [main] [] TcpServer/7025 - LmtpServer initiating shutdown
2006-08-21 05:31:50,396 INFO  [LmtpServer] [] TcpServer/7025 - finished accept loop
2006-08-21 05:31:50,405 INFO  [main] [] TcpServer/7025 - LmtpServer shutting down idle thread pool
2006-08-21 05:31:50,405 INFO  [main] [] TcpServer/110 - Pop3Server initiating shutdown
2006-08-21 05:31:50,406 INFO  [Pop3Server] [] TcpServer/110 - finished accept loop
2006-08-21 05:31:50,406 INFO  [main] [] TcpServer/110 - Pop3Server shutting down idle thread pool
2006-08-21 05:31:50,406 INFO  [main] [] TcpServer/995 - Pop3Server initiating shutdown
2006-08-21 05:31:50,406 INFO  [Pop3Server] [] TcpServer/995 - finished accept loop
2006-08-21 05:31:50,407 INFO  [main] [] TcpServer/995 - Pop3Server shutting down idle thread pool
2006-08-21 05:31:50,407 INFO  [main] [] TcpServer/143 - ImapServer initiating shutdown
2006-08-21 05:31:50,407 INFO  [ImapServer] [] TcpServer/143 - finished accept loop
2006-08-21 05:31:50,407 INFO  [main] [] TcpServer/143 - ImapServer shutting down idle thread pool
2006-08-21 05:31:50,408 INFO  [main] [] TcpServer/993 - ImapSSLServer initiating shutdown
2006-08-21 05:31:50,408 INFO  [ImapSSLServer] [] TcpServer/993 - finished accept loop
2006-08-21 05:31:50,410 INFO  [main] [] TcpServer/993 - ImapSSLServer shutting down idle thread pool
2006-08-21 05:31:50,422 INFO  [main] [] SessionCache - shutdown: clearing SessionCache
2006-08-21 05:31:50,423 INFO  [IndexWritersSweeper] [] MailboxIndex - IndexWritersSweeper thread exiting
2006-08-21 05:31:50,423 INFO  [main] [] MailboxIndex - Flushing all open index writers
2006-08-21 05:31:50,503 INFO  [main] [] RedoLogManager - Logged: 8 items, 3.75ms/item
2006-08-21 05:31:50,503 INFO  [IncomingDirectorySweeper] [] FileBlobStore - IncomingDirectorySweeper thread exiting
2006-08-21 05:31:50,505 INFO  [main] [] extensions - Destroying extensions
2006-08-21 05:31:50,514 INFO  [main] [] extensions - Destroyed extension clamscanner: com.zimbra.clam.ClamScanner@com.zimbra.cs.extension.ZimbraExtensionClassLoader@159d510
2006-08-21 05:31:50,515 INFO  [main] [] ContentServlet - Servlet ContentServlet shutting down
2006-08-21 05:31:50,516 INFO  [main] [] PublicICalServlet - Servlet PublicICalServlet shutting down
2006-08-21 05:31:50,517 INFO  [main] [] soap - Servlet SoapServlet shutting down
2006-08-21 05:31:50,518 INFO  [main] [] account - Servlet PreAuthServlet shutting down
2006-08-21 05:31:50,518 INFO  [main] [] mailbox - Servlet UserServlet shutting down
2006-08-21 05:31:50,519 INFO  [main] [] FileUploadServlet - Servlet FileUploadServlet shutting down
2006-08-21 07:47:02,989 INFO  [main] [] soap - Servlet SoapServlet starting up
2006-08-21 07:47:03,172 INFO  [main] [] soap - Adding service AccountService to SoapServlet
2006-08-21 07:47:03,268 INFO  [main] [] soap - Adding service MailService to SoapServlet
2006-08-21 07:47:03,492 INFO  [main] [] soap - Adding service IMService to SoapServlet
2006-08-21 07:47:03,501 INFO  [main] [] misc - version=3.1.4_GA_518.SuSE10 release=20060626141957 builddate=20060626-1420 buildhost=build-suse10
2006-08-21 07:47:03,503 INFO  [main] [] misc - LANG environment is set to: C
2006-08-21 07:47:03,717 INFO  [main] [] DbPool - Setting mysql connector property: maxActive=10
2006-08-21 07:47:04,567 INFO  [main] [] extensions - Loading extensions from /opt/zimbra/lib/ext
2006-08-21 07:47:04,571 INFO  [main] [] extensions - extension com.zimbra.clam.ClamScanner found in /opt/zimbra/lib/ext/clamscanner/clamscanner.jar
2006-08-21 07:47:04,572 INFO  [main] [] extensions - Initializing extensions
2006-08-21 07:47:04,583 INFO  [main] [] ClamScanner - attachment scan is disabled
2006-08-21 07:47:04,717 INFO  [main] [] extensions - Initialized extension clamscanner: com.zimbra.clam.ClamScanner@com.zimbra.cs.extension.ZimbraExtensionClassLoader@159d510
2006-08-21 07:47:04,781 INFO  [IndexWritersSweeper] [] MailboxIndex - IndexWritersSweeper thread starting
2006-08-21 07:47:04,783 INFO  [main] [] RedoLogManager - Starting pre-startup crash recovery
2006-08-21 07:47:04,806 INFO  [main] [] RedoPlayer - No uncommitted transactions to redo
2006-08-21 07:47:04,890 INFO  [main] [] RedoLogManager - Finished pre-startup crash recovery
2006-08-21 07:47:05,039 INFO  [LmtpServer] [] TcpServer/7025 - starting accept loop
2006-08-21 07:47:05,189 INFO  [Pop3Server] [] TcpServer/995 - starting accept loop
2006-08-21 07:47:05,194 INFO  [ImapServer] [] TcpServer/143 - starting accept loop
2006-08-21 07:47:05,215 INFO  [ImapSSLServer] [] TcpServer/993 - starting accept loop
2006-08-21 07:47:05,216 INFO  [main] [] soap - Servlet AdminServlet starting up
2006-08-21 07:47:05,340 INFO  [main] [] soap - Adding service AdminService to AdminServlet
2006-08-21 07:47:05,360 INFO  [main] [] soap - Adding service AccountService to AdminServlet
2006-08-21 07:47:05,361 INFO  [main] [] soap - Adding service MailService to AdminServlet
2006-08-21 07:47:05,361 INFO  [main] [] soap - Adding service IMService to AdminServlet
2006-08-21 07:47:05,368 INFO  [main] [] ContentServlet - Servlet ContentServlet starting up
2006-08-21 07:47:05,372 INFO  [main] [] PublicICalServlet - Servlet PublicICalServlet starting up
2006-08-21 07:47:05,377 INFO  [main] [] account - Servlet PreAuthServlet starting up
2006-08-21 07:47:05,418 INFO  [main] [] mailbox - Servlet UserServlet starting up
2006-08-21 07:47:05,429 INFO  [main] [] FileUploadServlet - Servlet FileUploadServlet starting up
2006-08-21 07:47:05,435 INFO  [main] [] StatsImageServlet - Servlet StatsImageServlet starting up
2006-08-21 07:47:05,499 INFO  [Pop3Server] [] TcpServer/110 - starting accept loop
2006-08-21 07:47:17,280 INFO  [LmtpServer-1] [] LmtpHandler - [172.25.80.1] connected
2006-08-21 07:47:17,540 INFO  [LmtpServer-1] [] JMSession - SMTP Server: mimosa.acrux.nl
2006-08-21 07:47:17,682 WARN  [LmtpServer-1] [] misc - LC.get(debug_validate_outgoing_icalendar) was null, returning empty string
2006-08-21 07:47:17,682 WARN  [LmtpServer-1] [] misc - LC.get(debug_disable_conversation) was null, returning empty string
2006-08-21 07:47:17,682 WARN  [LmtpServer-1] [] misc - LC.get(debug_disable_filter) was null, returning empty string
2006-08-21 07:47:17,683 WARN  [LmtpServer-1] [] misc - LC.get(debug_disable_message_analysis) was null, returning empty string
2006-08-21 07:47:17,683 WARN  [LmtpServer-1] [] misc - LC.get(debug_disable_mime_part_extraction) was null, returning empty string
2006-08-21 07:47:17,683 WARN  [LmtpServer-1] [] misc - LC.get(debug_disable_indexing) was null, returning empty string
2006-08-21 07:47:17,683 WARN  [LmtpServer-1] [] misc - LC.get(debug_disable_objects) was null, returning empty string
2006-08-21 07:47:17,683 WARN  [LmtpServer-1] [] misc - LC.get(debug_disable_indexing_attachments_separately) was null, returning empty string
2006-08-21 07:47:17,683 WARN  [LmtpServer-1] [] misc - LC.get(debug_disable_indexing_attachments_together) was null, returning empty string
2006-08-21 07:47:18,071 INFO  [LmtpServer-1] [] zimlet - Loaded class com.zimbra.cs.zimlet.handler.NANPHandler
2006-08-21 07:47:18,078 INFO  [LmtpServer-1] [] zimlet - Loaded class com.zimbra.cs.zimlet.handler.TrackingHandler
2006-08-21 07:47:18,081 INFO  [LmtpServer-1] [] zimlet - Loaded class com.zimbra.cs.zimlet.handler.URLHandler

Does anyone know what causes these failures?

[anand]

the socket timeout exceptions maybe harmless - it looks like a IMAP client that just went away.

Why did your tomcat shutdown? Can you examine catalina.out (and a few lines above the shutdown logs you posted) to see if any particular Java exception caused the problem?

[Acrux]

I use only the web interface. No IMAP clients are connect to my server. I have examend the catalina.out but I could not find anything strange.

I make a full backup if the /opt/zimbra folder every night at 4.00 AM. Zimbra is then stopped and after the backup started again.

I have attached the catalina.out of the last days and the zimbra.log from yesterday and today as requested.

[Acrux]

I figured out that after Tomcat stops running and I did a "zmcontrol stop" and a "zmcontrol start" the catalina.out log was whipped out.
I have posted some sections from the catalina.out log and attached the complete catalina.out log file with the correct error message.
Does someone has a idea what cases tomcat to stop?

Full thread dump Java HotSpot(TM) Client VM (1.5.0_06-b05 mixed mode):

"IncomingDirectorySweeper" prio=1 tid=0x0887c748 nid=0x4578 in Object.wait() [0x63c7a000..0x63c7b040]
	at java.lang.Object.wait(Native Method)
	- waiting on <0x4b75bae8> (a com.zimbra.cs.store.FileBlobStore$IncomingDirectorySweeper)
	at com.zimbra.cs.store.FileBlobStore$IncomingDirectorySweeper.run(FileBlobStore.java:425)
	- locked <0x4b75bae8> (acom.zimbra.cs.store.FileBlobStore$IncomingDirectorySweeper)

"TcpWatchdog-1" daemon prio=1 tid=0x0876eb70 nid=0x4574 in Object.wait() [0x63bf9000..0x63bfa0c0]
	at java.lang.Object.wait(Native Method)
	- waiting on <0x4b75bbc0> (aEDU.oswego.cs.dl.util.concurrent.ClockDaemon)
	at java.lang.Object.wait(Object.java:474)
	at EDU.oswego.cs.dl.util.concurrent.ClockDaemon.nextTask(Unknown Source)
	- locked <0x4b75bbc0> (a EDU.oswego.cs.dl.util.concurrent.ClockDaemon)
	at EDU.oswego.cs.dl.util.concurrent.ClockDaemon$RunLoop.run(Unknown Source)
	at java.lang.Thread.run(Thread.java:595)

"http-7071-Processor50" daemon prio=1 tid=0x080df128 nid=0x444a runnable [0x63367000..0x63367fc0]
	at java.net.PlainSocketImpl.socketAccept(Native Method)
	at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:384)
	- locked <0x4b3b56b0> (a java.net.SocksSocketImpl)
	at java.net.ServerSocket.implAccept(ServerSocket.java:450)
	at com.sun.net.ssl.internal.ssl.SSLServerSocketImpl.accept(SSLServerSocketImpl.java:259)
	at org.apache.tomcat.util.net.jsse.JSSESocketFactory.acceptSocket(JSSESocketFactory.java:110)
	at org.apache.tomcat.util.net.PoolTcpEndpoint.acceptSocket(PoolTcpEndpoint.java:407)
	at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:70)
	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
	at java.lang.Thread.run(Thread.java:595)

"http-7071-Processor49" daemon prio=1 tid=0x080de228 nid=0x4449 in Object.wait() [0x632e6000..0x632e6e40]
	at java.lang.Object.wait(Native Method)
	- waiting on <0x4b75be18> (a org.apache.tomcat.util.threads.ThreadPool$ControlRunnable)
	at java.lang.Object.wait(Object.java:474)
	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:656)
	- locked <0x4b75be18> (a org.apache.tomcat.util.threads.ThreadPool$ControlRunnable)
	at java.lang.Thread.run(Thread.java:595)

"http-7071-Processor48" daemon prio=1 tid=0x080dc320 nid=0x4448 in Object.wait() [0x63265000..0x63265ec0]
	at java.lang.Object.wait(Native Method)
	- waiting on <0x4b75beb0> (a org.apache.tomcat.util.threads.ThreadPool$ControlRunnable)
	at java.lang.Object.wait(Object.java:474)
	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:656)
	- locked <0x4b75beb0> (a org.apache.tomcat.util.threads.ThreadPool$ControlRunnable)
	at java.lang.Thread.run(Thread.java:595)

<snip>

"Thread-3" daemon prio=1 tid=0x087de478 nid=0x4337 waiting on condition [0x5b7f0000..0x5b7f1040]
	at java.lang.Thread.sleep(Native Method)
	at org.apache.log4j.helpers.FileWatchdog.run(FileWatchdog.java:95)

"Thread-1" daemon prio=1 tid=0x087a1f50 nid=0x4333 in Object.wait() [0x5b6af000..0x5b6aff40]
	at java.lang.Object.wait(Native Method)
	- waiting on <0x4b5b12e8> (a com.sun.jndi.ldap.pool.PoolCleaner)
	at com.sun.jndi.ldap.pool.PoolCleaner.run(PoolCleaner.java:36)
	- locked <0x4b5b12e8> (a com.sun.jndi.ldap.pool.PoolCleaner)

"Low Memory Detector" daemon prio=1 tid=0x080c6148 nid=0x432d runnable [0x00000000..0x00000000]

"CompilerThread0" daemon prio=1 tid=0x080c4be8 nid=0x432b waiting on condition [0x00000000..0x5a7038a8]

"Signal Dispatcher" daemon prio=1 tid=0x080c3da0 nid=0x4328 runnable [0x00000000..0x00000000]

"Finalizer" daemon prio=1 tid=0x080b9810 nid=0x4325 in Object.wait() [0x5a602000..0x5a6021c0]
	at java.lang.Object.wait(Native Method)
	- waiting on <0x4b200768> (a java.lang.ref.ReferenceQueue$Lock)
	at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:116)
	- locked <0x4b200768> (a java.lang.ref.ReferenceQueue$Lock)
	at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:132)
	at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:159)

"Reference Handler" daemon prio=1 tid=0x080b8b40 nid=0x4324 in Object.wait() [0x5a580000..0x5a581040]
	at java.lang.Object.wait(Native Method)
	- waiting on <0x4b200690> (a java.lang.ref.Reference$Lock)
	at java.lang.Object.wait(Object.java:474)
	at java.lang.ref.Reference$ReferenceHandler.run(Reference.java:116)
	- locked <0x4b200690> (a java.lang.ref.Reference$Lock)

"main" prio=1 tid=0x0805cf98 nid=0x431a runnable [0xbfc5c000..0xbfc5d378]
	at java.net.PlainSocketImpl.socketAccept(Native Method)
	at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:384)
	- locked <0x4b765c00> (a java.net.SocksSocketImpl)
	at java.net.ServerSocket.implAccept(ServerSocket.java:450)
	at java.net.ServerSocket.accept(ServerSocket.java:421)
	at org.apache.catalina.core.StandardServer.await(StandardServer.java:379)
	at org.apache.catalina.startup.Catalina.await(Catalina.java:615)
	at org.apache.catalina.startup.Catalina.start(Catalina.java:575)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:585)
	at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:275)
	at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)

"VM Thread" prio=1 tid=0x080b5ec8 nid=0x4323 runnable 

"VM Periodic Task Thread" prio=1 tid=0x080c75e8 nid=0x432e waiting on condition 

Sep 9, 2006 3:16:10 PM org.apache.coyote.http11.Http11BaseProtocol pause
INFO: Pausing Coyote HTTP/1.1 on http-80
Sep 9, 2006 3:16:10 PM org.apache.coyote.http11.Http11BaseProtocol pause
INFO: Pausing Coyote HTTP/1.1 on http-443
Sep 9, 2006 3:16:10 PM org.apache.coyote.http11.Http11BaseProtocol pause
INFO: Pausing Coyote HTTP/1.1 on http-7071
Sep 9, 2006 3:16:11 PM org.apache.catalina.core.StandardService stop
INFO: Stopping service Catalina
Sep 9, 2006 3:16:11 PM org.apache.catalina.session.StandardManager doUnload
SEVERE: IOException while saving persisted sessions: java.io.FileNotFoundException: /opt/zimbra/apache-tomcat-5.5.15/work/Catalina/localhost/host-manager/SESSIONS.ser (Permission denied)
java.io.FileNotFoundException: /opt/zimbra/apache-tomcat-5.5.15/work/Catalina/localhost/host-manager/SESSIONS.ser (Permission denied)
	at java.io.FileOutputStream.open(Native Method)
	at java.io.FileOutputStream.<init>(FileOutputStream.java:179)
	at java.io.FileOutputStream.<init>(FileOutputStream.java:70)
	at org.apache.catalina.session.StandardManager.doUnload(StandardManager.java:488)
	at org.apache.catalina.session.StandardManager.unload(StandardManager.java:462)
	at org.apache.catalina.session.StandardManager.stop(StandardManager.java:666)
	at org.apache.catalina.core.StandardContext.stop(StandardContext.java:4316)
	at org.apache.catalina.core.ContainerBase.removeChild(ContainerBase.java:892)
	at org.apache.catalina.startup.HostConfig.undeployApps(HostConfig.java:1159)
	at org.apache.catalina.startup.HostConfig.stop(HostConfig.java:1131)
	at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:312)
	at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
	at org.apache.catalina.core.ContainerBase.stop(ContainerBase.java:1053)
	at org.apache.catalina.core.ContainerBase.stop(ContainerBase.java:1065)
	at org.apache.catalina.core.StandardEngine.stop(StandardEngine.java:447)
	at org.apache.catalina.core.StandardService.stop(StandardService.java:512)
	at org.apache.catalina.core.StandardServer.stop(StandardServer.java:734)
	at org.apache.catalina.startup.Catalina.stop(Catalina.java:601)
	at org.apache.catalina.startup.Catalina.start(Catalina.java:576)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:585)
	at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:275)
	at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)
Sep 9, 2006 3:16:11 PM org.apache.catalina.session.StandardManager stop
SEVERE: Exception unloading sessions to persistent storage
java.io.FileNotFoundException: /opt/zimbra/apache-tomcat-5.5.15/work/Catalina/localhost/host-manager/SESSIONS.ser (Permission denied)
	at java.io.FileOutputStream.open(Native Method)
	at java.io.FileOutputStream.<init>(FileOutputStream.java:179)
	at java.io.FileOutputStream.<init>(FileOutputStream.java:70)
	at org.apache.catalina.session.StandardManager.doUnload(StandardManager.java:488)
	at org.apache.catalina.session.StandardManager.unload(StandardManager.java:462)
	at org.apache.catalina.session.StandardManager.stop(StandardManager.java:666)
	at org.apache.catalina.core.StandardContext.stop(StandardContext.java:4316)
	at org.apache.catalina.core.ContainerBase.removeChild(ContainerBase.java:892)
	at org.apache.catalina.startup.HostConfig.undeployApps(HostConfig.java:1159)
	at org.apache.catalina.startup.HostConfig.stop(HostConfig.java:1131)
	at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:312)
	at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
	at org.apache.catalina.core.ContainerBase.stop(ContainerBase.java:1053)
	at org.apache.catalina.core.ContainerBase.stop(ContainerBase.java:1065)
	at org.apache.catalina.core.StandardEngine.stop(StandardEngine.java:447)
	at org.apache.catalina.core.StandardService.stop(StandardService.java:512)
	at org.apache.catalina.core.StandardServer.stop(StandardServer.java:734)
	at org.apache.catalina.startup.Catalina.stop(Catalina.java:601)
	at org.apache.catalina.startup.Catalina.start(Catalina.java:576)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:585)
	at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:275)
	at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)
Sep 9, 2006 3:16:11 PM org.apache.coyote.http11.Http11BaseProtocol destroy
INFO: Stopping Coyote HTTP/1.1 on http-80
Sep 9, 2006 3:16:11 PM org.apache.coyote.http11.Http11BaseProtocol destroy
INFO: Stopping Coyote HTTP/1.1 on http-443
Sep 9, 2006 3:16:11 PM org.apache.coyote.http11.Http11BaseProtocol destroy
INFO: Stopping Coyote HTTP/1.1 on http-7071

[Acrux]

Yesterday evening Tomcat again crashes..... ..
Can someone tell why Tomcat crashes al the time???

In the main while I'm going to upgrade Zimbra to version 4.0.1 this weekend. Maybe this solves this problem??

[Acrux]

The upgrade didn't help...
But after moving the harddisk to a complete other server, zimbra is running fine now for about 1,5 weeks!

Everything was related to hardware problems........