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From Christian Posta <christian.po...@gmail.com>
Subject Re: ActiveMQ locking all the threads [5.5.1]
Date Wed, 07 Nov 2012 00:48:55 GMT
Looks like the subscription trying to read from the
FilePendingMessageCursor's temp store is trying to read the contents of the
store file, but is blocking on readFully()... keeping other threads from
sending.
Any reason why it couldn't read the temp store?

On Tue, Nov 6, 2012 at 11:44 AM, Aravind Chennuru <
Aravind.Chennuru@netboss.com> wrote:

>  I attached the email about the way we use ActiveMQ, including the
> configuration file we used to start ActiveMQ.****
>
> ** **
>
> ** **
>
> ** **
>
> -----Original Message-----
> From: Gaurav Sharma [mailto:gaurav.cs.sharma@gmail.com]
> Sent: Tuesday, November 06, 2012 12:31 PM
> To: users@activemq.apache.org
> Subject: Re: ActiveMQ locking all the threads [5.5.1]
>
> ** **
>
> Mind sharing the messaging topology and how the broker is getting used by
> the app?****
>
> ** **
>
> On Nov 6, 2012, at 8:49, Aravind Chennuru <Aravind.Chennuru@netboss.com>
> wrote:****
>
> ** **
>
> > Hi All,****
>
> > ****
>
> > I am facing a problem on some of our production servers with ActiveMQ
> locking the threads and the messages are no more sent to the consumers. Did
> someone notice similar problem and know if there is a way to address this?
> ****
>
> > It is not a deadlock but when this happens the messages are stopped
> being sent.****
>
> > ****
>
> > ****
>
> > "ActiveMQ Transport: tcp:///192.168.18.129:57610" daemon prio=3
> tid=0x00000001027aa000 nid=0x3a waiting for monitor entry
> [0xfffffffee6efe000]****
>
> >   java.lang.Thread.State: BLOCKED (on object monitor)****
>
> >                at
> org.apache.activemq.broker.region.Topic.doMessageSend(Topic.java:423)****
>
> >                - waiting to lock <0xffffffff005397c0> (a
> org.apache.activemq.broker.region.Topic)****
>
> >                at
> org.apache.activemq.broker.region.Topic.send(Topic.java:404)****
>
> >                at
> org.apache.activemq.broker.region.AbstractRegion.send(AbstractRegion.java:365)
> ****
>
> >                at
> org.apache.activemq.broker.region.RegionBroker.send(RegionBroker.java:523)
> ****
>
> >                at
> org.apache.activemq.broker.BrokerFilter.send(BrokerFilter.java:129)****
>
> >                at
> org.apache.activemq.broker.CompositeDestinationBroker.send(CompositeDestinationBroker.java:96)
> ****
>
> >                at
> org.apache.activemq.broker.TransactionBroker.send(TransactionBroker.java:227)
> ****
>
> >                at
> org.apache.activemq.broker.BrokerFilter.send(BrokerFilter.java:129)****
>
> >                at
> org.apache.activemq.broker.MutableBrokerFilter.send(MutableBrokerFilter.java:135)
> ****
>
> >                at
> org.apache.activemq.broker.TransportConnection.processMessage(TransportConnection.java:458)
> ****
>
> >                at
> org.apache.activemq.command.ActiveMQMessage.visit(ActiveMQMessage.java:681)
> ****
>
> >                at
> org.apache.activemq.broker.TransportConnection.service(TransportConnection.java:306)
> ****
>
> >                at
> org.apache.activemq.broker.TransportConnection$1.onCommand(TransportConnection.java:179)
> ****
>
> >                at
> org.apache.activemq.transport.TransportFilter.onCommand(TransportFilter.java:69)
> ****
>
> >                at
> org.apache.activemq.transport.WireFormatNegotiator.onCommand(WireFormatNegotiator.java:113)
> ****
>
> >                at
> org.apache.activemq.transport.InactivityMonitor.onCommand(InactivityMonitor.java:227)
> ****
>
> >                - locked <0xffffffff00767bb8> (a
> org.apache.activemq.transport.InactivityMonitor$1)****
>
> >                at
> org.apache.activemq.transport.TransportSupport.doConsume(TransportSupport.java:83)
> ****
>
> >                at
> org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:220)
> ****
>
> >                at
> org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:202)*
> ***
>
> >                at java.lang.Thread.run(Thread.java:662)****
>
> > ****
>
> > "ActiveMQ Transport: tcp:///192.168.18.130:40617" daemon prio=3
> tid=0x0000000102f53000 nid=0x46 runnable [0xfffffffee60fe000]****
>
> >   java.lang.Thread.State: RUNNABLE****
>
> >                at java.io.RandomAccessFile.readBytes(Native Method)****
>
> >                at
> java.io.RandomAccessFile.read(RandomAccessFile.java:338)****
>
> >                at
> java.io.RandomAccessFile.readFully(RandomAccessFile.java:397)****
>
> >                at
> java.io.RandomAccessFile.readFully(RandomAccessFile.java:377)****
>
> >                at
> org.apache.kahadb.page.PageFile.readPage(PageFile.java:779)****
>
> >                at
> org.apache.kahadb.page.Transaction$2.readPage(Transaction.java:440)****
>
> >                at
> org.apache.kahadb.page.Transaction$2.<init>(Transaction.java:431)****
>
> >                at
> org.apache.kahadb.page.Transaction.openInputStream(Transaction.java:428)**
> **
>
> >                at
> org.apache.kahadb.page.Transaction.load(Transaction.java:404)****
>
> >                at
> org.apache.kahadb.page.Transaction.load(Transaction.java:361)****
>
> >                at
> org.apache.activemq.store.kahadb.plist.PList.loadEntry(PList.java:468)****
>
> >                at
> org.apache.activemq.store.kahadb.plist.PList.getNext(PList.java:483)****
>
> >                at
> org.apache.activemq.store.kahadb.plist.PList$10.execute(PList.java:312)***
> *
>
> >                at
> org.apache.kahadb.page.Transaction.execute(Transaction.java:728)****
>
> >                at
> org.apache.activemq.store.kahadb.plist.PList.getNext(PList.java:310)****
>
> >                - locked <0xffffffff004de4c0> (a java.lang.Object)****
>
> >                - locked <0xffffffff09a97068> (a
> org.apache.activemq.store.kahadb.plist.PList)****
>
> >                at
> org.apache.activemq.broker.region.cursors.FilePendingMessageCursor$DiskIterator.next(FilePendingMessageCursor.java:500)
> ****
>
> >                - locked <0xffffffff09a97068> (a
> org.apache.activemq.store.kahadb.plist.PList)****
>
> >                at
> org.apache.activemq.broker.region.cursors.FilePendingMessageCursor$DiskIterator.next(FilePendingMessageCursor.java:473)
> ****
>
> >                at
> org.apache.activemq.broker.region.cursors.FilePendingMessageCursor.next(FilePendingMessageCursor.java:293)
> ****
>
> >                - locked <0xffffffff013199f0> (a
> org.apache.activemq.broker.region.cursors.FilePendingMessageCursor)****
>
> >                at
> org.apache.activemq.broker.region.TopicSubscription.removeExpiredMessages(TopicSubscription.java:212)
> ****
>
> >                at
> org.apache.activemq.broker.region.TopicSubscription.add(TopicSubscription.java:149)
> ****
>
> >                - locked <0xffffffff01316480> (a java.lang.Object)****
>
> >                at
> org.apache.activemq.broker.region.policy.SimpleDispatchPolicy.dispatch(SimpleDispatchPolicy.java:48)
> ****
>
> >                at
> org.apache.activemq.broker.region.Topic.dispatch(Topic.java:634)****
>
> >                at
> org.apache.activemq.broker.region.Topic.doMessageSend(Topic.java:468)****
>
> >                - locked <0xffffffff005397c0> (a
> org.apache.activemq.broker.region.Topic)****
>
> >                at
> org.apache.activemq.broker.region.Topic.send(Topic.java:404)****
>
> >                at
> org.apache.activemq.broker.region.AbstractRegion.send(AbstractRegion.java:365)
> ****
>
> >                at
> org.apache.activemq.broker.region.RegionBroker.send(RegionBroker.java:523)
> ****
>
> >                at
> org.apache.activemq.broker.BrokerFilter.send(BrokerFilter.java:129)****
>
> >                at
> org.apache.activemq.broker.CompositeDestinationBroker.send(CompositeDestinationBroker.java:96)
> ****
>
> >                at
> org.apache.activemq.broker.TransactionBroker.send(TransactionBroker.java:227)
> ****
>
> >                at
> org.apache.activemq.broker.BrokerFilter.send(BrokerFilter.java:129)****
>
> >                at
> org.apache.activemq.broker.MutableBrokerFilter.send(MutableBrokerFilter.java:135)
> ****
>
> >                at
> org.apache.activemq.broker.TransportConnection.processMessage(TransportConnection.java:458)
> ****
>
> >                at
> org.apache.activemq.command.ActiveMQMessage.visit(ActiveMQMessage.java:681)
> ****
>
> >                at
> org.apache.activemq.broker.TransportConnection.service(TransportConnection.java:306)
> ****
>
> >                at
> org.apache.activemq.broker.TransportConnection$1.onCommand(TransportConnection.java:179)
> ****
>
> >                at
> org.apache.activemq.transport.TransportFilter.onCommand(TransportFilter.java:69)
> ****
>
> >                at
> org.apache.activemq.transport.WireFormatNegotiator.onCommand(WireFormatNegotiator.java:113)
> ****
>
> >                at
> org.apache.activemq.transport.InactivityMonitor.onCommand(InactivityMonitor.java:227)
> ****
>
> >                - locked <0xffffffff004ca288> (a
> org.apache.activemq.transport.InactivityMonitor$1)****
>
> >                at
> org.apache.activemq.transport.TransportSupport.doConsume(TransportSupport.java:83)
> ****
>
> >                at
> org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:220)
> ****
>
> >                at
> org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:202)*
> ***
>
> >                at java.lang.Thread.run(Thread.java:662)****
>
> > ****
>
> > Thanks & Regards,****
>
> > Aravind Chennuru****
>
> ** **
>



-- 
*Christian Posta*
http://www.christianposta.com/blog
twitter: @christianposta

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