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Re: [xmlblaster] Strange error when unsubscribing

To: xmlblaster at server.xmlBlaster.org
Subject: Re: [xmlblaster] Strange error when unsubscribing
From: Michele Laghi <michele at laghi.eu>
Date: Thu, 24 May 2007 17:42:09 +0200
In-reply-to: <20070524110858.2b349323 at mail.openroadsconsulting.com>
References: <20070524110858.2b349323 at mail.openroadsconsulting.com>
Reply-to: xmlblaster at server.xmlBlaster.org
Sender: owner-xmlblaster at server.xmlBlaster.org
User-agent: Thunderbird 2.0.0.0 (X11/20070326)

Hi David and Marcel, one possible reason of this problem could be a mixup between client and server queues: The client queue stores "subscribe" messages which could not be sent as "subscribe" (lower) (comes out of MethodName.SUBSCRIBE).

At the moment I still can not understand how the client entry is read as a server entry.

Try to separate the client from the server queues by giving them different names:

in JdbcStorage[...].entriesTableName

Regards
Michele

David Robison wrote:

In the logfile portion I sent, it throws a warning that a prepared statement is being closed with autocomplete false. Should we configure access to the postgresql database for autocomplete true?
Thanks, David
----- Original Message -----
From: Marcel Ruff [mailto:mr at marcelruff.info]
To: xmlblaster at server.xmlBlaster.org
Subject: Re: [xmlblaster] Strange error when unsubscribing
Hi again,
our persistent entries should be marked with capital letters public static final String ENTRY_TYPE_SUBSCRIBE = "SUBSCRIBE";
which does not match to the type of your logging output:
'subscribe'
I have no idea how this small notation can appear, i believe it must be somewhere in your database?
I have commited to the current svn a version which ignores case during
persistence lookup, but this is just a temporary workaround,
regards
Marcel
David Robison wrote:
We are experiencing a problem running xmlBlaster 1.5.1. After running for
several weeks, two nodes in our cluster start reporting the same types of
errors:
May 23, 2007 12:08:52 PM WARNING 6901718-pool-1-thread-4878 RL10
org.xmlBlaster.util.queue.jdbc.PreparedQuery close: close with autocommit
'false': rollback
May 23, 2007 12:08:52 PM SEVERE 6901718-pool-1-thread-4878 RL10
org.xmlBlaster.util.queue.cache.CacheQueueInterceptorPlugin
loadFromPersistence: connection:/node/StauntonSTC/client/StauntonSTC/1:
Could not read back data from persistence: XmlBlasterException
serverSideException=true node=[StauntonSTC] location=[ServerEntryFactory]
stackTrace=errorCode=internal.notImplemented message=#exported Persistent
object 'subscribe' is not implemented
at
org.xmlBlaster.engine.queuemsg.ServerEntryFactory.createEntry(ServerEntryFactory.java:289)
at
org.xmlBlaster.util.queue.jdbc.JdbcManagerCommonTable.processResultSet(JdbcManagerCommonTable.java:1181)
at
org.xmlBlaster.util.queue.jdbc.JdbcManagerCommonTable.getEntries(JdbcManagerCommonTable.java:2017)
at
org.xmlBlaster.util.queue.jdbc.JdbcQueueCommonTablePlugin.peek(JdbcQueueCommonTablePlugin.java:576)
at
org.xmlBlaster.util.queue.cache.CacheQueueInterceptorPlugin.loadFromPersistence(CacheQueueInterceptorPlugin.java:1042)
at
org.xmlBlaster.util.queue.cache.CacheQueueInterceptorPlugin.put(CacheQueueInterceptorPlugin.java:545)
at
org.xmlBlaster.util.queue.cache.CacheQueueInterceptorPlugin.put(CacheQueueInterceptorPlugin.java:447)
at
org.xmlBlaster.client.XmlBlasterAccess.queueMessage(XmlBlasterAccess.java:792)
at
org.xmlBlaster.client.XmlBlasterAccess.unSubscribe(XmlBlasterAccess.java:931)
at
org.xmlBlaster.engine.cluster.ClusterManager.forwardUnSubscribe(ClusterManager.java:537)
at
org.xmlBlaster.engine.RequestBroker.unSubscribe(RequestBroker.java:1167)
at
org.xmlBlaster.engine.XmlBlasterImpl.unSubscribe(XmlBlasterImpl.java:131)
at
org.xmlBlaster.util.protocol.RequestReplyExecutor.receiveReply(RequestReplyExecutor.java:490)
at
org.xmlBlaster.protocol.socket.HandleClient.handleMessage(HandleClient.java:227)
at
org.xmlBlaster.protocol.socket.HandleClient$1.run(HandleClient.java:376)
at
edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:665)
at
edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:690)
 	at java.lang.Thread.run(Unknown Source)
versionInfo=version=1.5.1,revision=exported,os.name=Windows
2003,os.version=5.2,java.vm.vendor=Sun Microsystems
Inc.,java.vm.version=1.5.0_10-b03,os.arch=x86,build.timestamp=02/26/2007
08:00 AM,build.java.vendor=Sun Microsystems Inc.,build.java.version=1.4.2_06
errorCode
description=http://www.xmlblaster.org/xmlBlaster/doc/requirements/admin.errorcodes.listing.html#internal.notImplemented
errorCode=internal.notImplemented message=#exported Persistent object
'subscribe' is not implemented
at
org.xmlBlaster.engine.queuemsg.ServerEntryFactory.createEntry(ServerEntryFactory.java:289)
at
org.xmlBlaster.util.queue.jdbc.JdbcManagerCommonTable.processResultSet(JdbcManagerCommonTable.java:1181)
at
org.xmlBlaster.util.queue.jdbc.JdbcManagerCommonTable.getEntries(JdbcManagerCommonTable.java:2017)
at
org.xmlBlaster.util.queue.jdbc.JdbcQueueCommonTablePlugin.peek(JdbcQueueCommonTablePlugin.java:576)
at
org.xmlBlaster.util.queue.cache.CacheQueueInterceptorPlugin.loadFromPersistence(CacheQueueInterceptorPlugin.java:1042)
at
org.xmlBlaster.util.queue.cache.CacheQueueInterceptorPlugin.put(CacheQueueInterceptorPlugin.java:545)
at
org.xmlBlaster.util.queue.cache.CacheQueueInterceptorPlugin.put(CacheQueueInterceptorPlugin.java:447)
at
org.xmlBlaster.client.XmlBlasterAccess.queueMessage(XmlBlasterAccess.java:792)
at
org.xmlBlaster.client.XmlBlasterAccess.unSubscribe(XmlBlasterAccess.java:931)
at
org.xmlBlaster.engine.cluster.ClusterManager.forwardUnSubscribe(ClusterManager.java:537)
at
org.xmlBlaster.engine.RequestBroker.unSubscribe(RequestBroker.java:1167)
at
org.xmlBlaster.engine.XmlBlasterImpl.unSubscribe(XmlBlasterImpl.java:131)
at
org.xmlBlaster.util.protocol.RequestReplyExecutor.receiveReply(RequestReplyExecutor.java:490)
at
org.xmlBlaster.protocol.socket.HandleClient.handleMessage(HandleClient.java:227)
at
org.xmlBlaster.protocol.socket.HandleClient$1.run(HandleClient.java:376)
at
edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:665)
at
edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:690)
 	at java.lang.Thread.run(Unknown Source)
May 23, 2007 12:08:52 PM  INFO   6901718-pool-1-thread-4878 RL10
org.xmlBlaster.engine.RequestBroker unSubscribe: unSubscribe of
'__subId:StauntonSTC-XPATH1179936462585000000' matched 1 entries in remote
cluster
May 23, 2007 12:08:52 PM WARNING 6901718-pool-1-thread-4878 RL10
org.xmlBlaster.util.queue.jdbc.PreparedQuery close: close with autocommit
'false': rollback
May 23, 2007 12:08:52 PM SEVERE 6901718-pool-1-thread-4878 RL10
org.xmlBlaster.util.queue.cache.CacheQueueInterceptorPlugin
loadFromPersistence: connection:/node/StauntonSTC/client/StauntonSTC/1:
Could not read back data from persistence: XmlBlasterException
serverSideException=true node=[StauntonSTC] location=[ServerEntryFactory]
stackTrace=errorCode=internal.notImplemented message=#exported Persistent
object 'subscribe' is not implemented
at
org.xmlBlaster.engine.queuemsg.ServerEntryFactory.createEntry(ServerEntryFactory.java:289)
at
org.xmlBlaster.util.queue.jdbc.JdbcManagerCommonTable.processResultSet(JdbcManagerCommonTable.java:1181)
at
org.xmlBlaster.util.queue.jdbc.JdbcManagerCommonTable.getEntries(JdbcManagerCommonTable.java:2017)
at
org.xmlBlaster.util.queue.jdbc.JdbcQueueCommonTablePlugin.peek(JdbcQueueCommonTablePlugin.java:576)
at
org.xmlBlaster.util.queue.cache.CacheQueueInterceptorPlugin.loadFromPersistence(CacheQueueInterceptorPlugin.java:1042)
at
org.xmlBlaster.util.queue.cache.CacheQueueInterceptorPlugin.put(CacheQueueInterceptorPlugin.java:545)
at
org.xmlBlaster.util.queue.cache.CacheQueueInterceptorPlugin.put(CacheQueueInterceptorPlugin.java:447)
at
org.xmlBlaster.client.XmlBlasterAccess.queueMessage(XmlBlasterAccess.java:792)
at
org.xmlBlaster.client.XmlBlasterAccess.unSubscribe(XmlBlasterAccess.java:931)
at
org.xmlBlaster.engine.cluster.ClusterManager.forwardUnSubscribe(ClusterManager.java:537)
at
org.xmlBlaster.engine.RequestBroker.unSubscribe(RequestBroker.java:1167)
at
org.xmlBlaster.engine.XmlBlasterImpl.unSubscribe(XmlBlasterImpl.java:131)
at
org.xmlBlaster.util.protocol.RequestReplyExecutor.receiveReply(RequestReplyExecutor.java:490)
at
org.xmlBlaster.protocol.socket.HandleClient.handleMessage(HandleClient.java:227)
at
org.xmlBlaster.protocol.socket.HandleClient$1.run(HandleClient.java:376)
at
edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:665)
at
edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:690)
	at java.lang.Thread.run(Unknown Source)
versionInfo=version=1.5.1,revision=exported,os.name=Windows
2003,os.version=5.2,java.vm.vendor=Sun Microsystems
Inc.,java.vm.version=1.5.0_10-b03,os.arch=x86,build.timestamp=02/26/2007
08:00 AM,build.java.vendor=Sun Microsystems Inc.,build.java.version=1.4.2_06
errorCode
description=http://www.xmlblaster.org/xmlBlaster/doc/requirements/admin.errorcodes.listing.html#internal.notImplemented
errorCode=internal.notImplemented message=#exported Persistent object
'subscribe' is not implemented
at
org.xmlBlaster.engine.queuemsg.ServerEntryFactory.createEntry(ServerEntryFactory.java:289)
at
org.xmlBlaster.util.queue.jdbc.JdbcManagerCommonTable.processResultSet(JdbcManagerCommonTable.java:1181)
at
org.xmlBlaster.util.queue.jdbc.JdbcManagerCommonTable.getEntries(JdbcManagerCommonTable.java:2017)
at
org.xmlBlaster.util.queue.jdbc.JdbcQueueCommonTablePlugin.peek(JdbcQueueCommonTablePlugin.java:576)
at
org.xmlBlaster.util.queue.cache.CacheQueueInterceptorPlugin.loadFromPersistence(CacheQueueInterceptorPlugin.java:1042)
at
org.xmlBlaster.util.queue.cache.CacheQueueInterceptorPlugin.put(CacheQueueInterceptorPlugin.java:545)
at
org.xmlBlaster.util.queue.cache.CacheQueueInterceptorPlugin.put(CacheQueueInterceptorPlugin.java:447)
at
org.xmlBlaster.client.XmlBlasterAccess.queueMessage(XmlBlasterAccess.java:792)
at
org.xmlBlaster.client.XmlBlasterAccess.unSubscribe(XmlBlasterAccess.java:931)
at
org.xmlBlaster.engine.cluster.ClusterManager.forwardUnSubscribe(ClusterManager.java:537)
at
org.xmlBlaster.engine.RequestBroker.unSubscribe(RequestBroker.java:1167)
at
org.xmlBlaster.engine.XmlBlasterImpl.unSubscribe(XmlBlasterImpl.java:131)
at
org.xmlBlaster.util.protocol.RequestReplyExecutor.receiveReply(RequestReplyExecutor.java:490)
at
org.xmlBlaster.protocol.socket.HandleClient.handleMessage(HandleClient.java:227)
at
org.xmlBlaster.protocol.socket.HandleClient$1.run(HandleClient.java:376)
at
edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:665)
at
edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:690)
 	at java.lang.Thread.run(Unknown Source)
May 23, 2007 12:08:52 PM  INFO   6901718-pool-1-thread-4878 RL10
org.xmlBlaster.engine.RequestBroker unSubscribe: unSubscribe of
'__subId:StauntonSTC-XPATH1179936462757000000' matched 1 entries in remote
cluster
It appears that there is a problem unsubscribing but I am unsure what the
problem might be. Any thoughts or hints on how to proceed with debugging
this problem?
Thanks in advance, David Robison
--
Marcel Ruff
http://www.xmlBlaster.org

References:
- Re: [xmlblaster] Strange error when unsubscribing
  - From: "David Robison" <drrobison at openroadsconsulting.com>

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