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From "Nandkishore (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (AMQ-5695) KahaDB not cleaning up log files
Date Wed, 12 Aug 2015 10:51:45 GMT

    [ https://issues.apache.org/jira/browse/AMQ-5695?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14693308#comment-14693308
] 

Nandkishore commented on AMQ-5695:
----------------------------------

We encountered the same problem in our performance test environments. I don't think this bug
is only encountered when you have a mix of  fast and slow consumers sharing the same kahadb
store. We are using ActiveMQ 5.11.1 in our environments.
The behaviour we noticed was that ActiveMQ wrote the messages to a new kahadb file (journal
log) after every 32 mb (default configuration). This  lead to the message and its corresponding
ack ending up in different files. It resulted in a chain of such journal logs which couldn't
be cleaned up by ActiveMQ. It eventually filled up the disk causing ActiveMQ to shutdown
We do not have any 'slow' producers/consumers, All the responses during our performance tests
were within 80 milliseconds. It implies that the issue is easily reproduced under high load.
 


> KahaDB not cleaning up log files
> --------------------------------
>
>                 Key: AMQ-5695
>                 URL: https://issues.apache.org/jira/browse/AMQ-5695
>             Project: ActiveMQ
>          Issue Type: Bug
>    Affects Versions: 5.11.1
>            Reporter: Stefan Warten
>            Assignee: Arthur Naseef
>
> Since we have upgraded ActiveMQ from 5.10.0 to 5.11.1, KahaDB is not cleaning up log
files properly. It seems to keep all of them. It helped once to restart the service and minutes
later, ActiveMQ cleaned up 95% of log files but mostly it is not cleaning up at all.
> When partition was full, I stopped ActiveMQ, copied the KahaDB to another host and started
it with empty queues again. Then I forwarded all messages from that other host back. Even
when all messages were forwarded and all queues were empty, the old KahaDB log files were
not cleaned up.
> I stopped ActiveMQ, removed db.data and db.redo to rebuild index which took around 3h
(350GB of log files) but still, the log files are not cleaned up.
> [...]
> 2015-03-30 18:21:55,532 | INFO  | @13786:158508, 321300000 entries recovered .. | org.apache.activemq.store.kahadb.MessageDatabase
| WrapperSimpleAppMain
> 2015-03-30 18:22:02,090 | INFO  | Recovery replayed 321378917 operations from the journal
in 9226.159 seconds. | org.apache.activemq.store.kahadb.MessageDatabase | WrapperSimpleAppMain
> 2015-03-30 18:22:02,402 | INFO  | installing runtimeConfiguration plugin | org.apache.activemq.plugin.RuntimeConfigurationPlugin
| WrapperSimpleAppMain
> 2015-03-30 18:22:04,576 | INFO  | Apache ActiveMQ 5.11.1 (prd-mig-02-sat.example.com,
ID:prd-mig-02-sat.example.com-26260-1427730492201-1:1) is starting | org.apache.activemq.broker.BrokerService
| WrapperSimpleAppMain
> 2015-03-30 18:22:04,946 | INFO  | pending local transactions: [] | org.apache.activemq.store.kahadb.MultiKahaDBTransactionStore
| WrapperSimpleAppMain
> 2015-03-30 18:22:08,488 | INFO  | Configuration class path resource [activemq.xml] |
org.apache.activemq.plugin.RuntimeConfigurationBroker | WrapperSimpleAppMain
> 2015-03-30 18:22:12,198 | INFO  | Listening for connections at: nio://prd-mig-02-sat.example.com:61616?transport.reuseAddress=true
| org.apache.activemq.transport.TransportServerThreadSupport | WrapperSimpleAppMain
> 2015-03-30 18:22:12,199 | INFO  | Connector openwire started | org.apache.activemq.broker.TransportConnector
| WrapperSimpleAppMain
> 2015-03-30 18:22:12,232 | INFO  | Listening for connections at: stomp+nio://prd-mig-02-sat.example.com:61613?transport.closeAsync=false&transport.reuseAddress=true
| org.apache.activemq.transport.TransportServerThreadSupport | WrapperSimpleAppMain
> 2015-03-30 18:22:12,234 | INFO  | Connector stomp started | org.apache.activemq.broker.TransportConnector
| WrapperSimpleAppMain
> 2015-03-30 18:22:12,237 | INFO  | Establishing network connection from vm://prd-mig-02-sat.example.com?async=false&network=true
to tcp://172.42.15.40:61616 | org.apache.activemq.network.DiscoveryNetworkConnector | WrapperSimpleAppMain
> 2015-03-30 18:22:12,286 | INFO  | Connector vm://prd-mig-02-sat.example.com started |
org.apache.activemq.broker.TransportConnector | WrapperSimpleAppMain
> 2015-03-30 18:22:12,318 | INFO  | Establishing network connection from vm://prd-mig-02-sat.example.com?async=false&network=true
to tcp://172.42.15.39:61616 | org.apache.activemq.network.DiscoveryNetworkConnector | WrapperSimpleAppMain
> 2015-03-30 18:22:12,321 | INFO  | Network Connector DiscoveryNetworkConnector:FORWARDER:BrokerService[prd-mig-02-sat.example.com]
started | org.apache.activemq.network.NetworkConnector | WrapperSimpleAppMain
> 2015-03-30 18:22:12,325 | INFO  | Apache ActiveMQ 5.11.1 (prd-mig-02-sat.example.com,
ID:prd-mig-02-sat.example.com-26260-1427730492201-1:1) started | org.apache.activemq.broker.BrokerService
| WrapperSimpleAppMain
> 2015-03-30 18:22:12,326 | INFO  | For help or more information please see: http://activemq.apache.org
| org.apache.activemq.broker.BrokerService | WrapperSimpleAppMain
> 2015-03-30 18:22:12,381 | INFO  | Network connection between vm://prd-mig-02-sat.example.com#0
and tcp:///172.42.15.40:61616@58567 (prdvip-amq-01-sat.example.com) has been established.
| org.apache.activemq.network.DemandForwardingBridgeSupport | triggerStartAsyncNetworkBridgeCreation:
remoteBroker=tcp:///172.42.15.40:61616@58567, localBroker= vm://prd-mig-02-sat.example.com#0
> 2015-03-30 18:22:12,381 | INFO  | Network connection between vm://prd-mig-02-sat.example.com#2
and tcp:///172.42.15.39:61616@4523 (prdvip-amq-02-sat.example.com) has been established. |
org.apache.activemq.network.DemandForwardingBridgeSupport | triggerStartAsyncNetworkBridgeCreation:
remoteBroker=tcp:///172.42.15.39:61616@4523, localBroker= vm://prd-mig-02-sat.example.com#2
> 2015-03-31 04:21:13,971 | INFO  | Slow KahaDB access: Journal append took: 0 ms, Index
update took 1936 ms | org.apache.activemq.store.kahadb.AbstractKahaDBStore | JobScheduler:JMS
> 2015-03-31 06:07:34,560 | INFO  | Slow KahaDB access: cleanup took 30113 | org.apache.activemq.store.kahadb.AbstractKahaDBStore
| ActiveMQ Journal Checkpoint Worker
> 2015-03-31 06:07:39,076 | INFO  | Slow KahaDB access: cleanup took 4015 | org.apache.activemq.store.kahadb.AbstractKahaDBStore
| ActiveMQ Journal Checkpoint Worker
> 2015-03-31 06:08:48,101 | INFO  | Slow KahaDB access: Journal append took: 0 ms, Index
update took 2667 ms | org.apache.activemq.store.kahadb.AbstractKahaDBStore | JobScheduler:JMS
> 2015-03-31 06:09:39,629 | INFO  | Slow KahaDB access: cleanup took 3470 | org.apache.activemq.store.kahadb.AbstractKahaDBStore
| ActiveMQ Journal Checkpoint Worker
> 2015-03-31 06:10:20,789 | INFO  | Slow KahaDB access: Journal append took: 0 ms, Index
update took 2666 ms | org.apache.activemq.store.kahadb.AbstractKahaDBStore | JobScheduler:JMS
> 2015-03-31 06:11:02,925 | INFO  | Slow KahaDB access: Journal append took: 1 ms, Index
update took 2714 ms | org.apache.activemq.store.kahadb.AbstractKahaDBStore | JobScheduler:JMS
> 2015-03-31 06:11:23,673 | INFO  | Slow KahaDB access: Journal append took: 1 ms, Index
update took 2632 ms | org.apache.activemq.store.kahadb.AbstractKahaDBStore | JobScheduler:JMS
> 2015-03-31 06:11:53,784 | INFO  | Slow KahaDB access: Journal append took: 1 ms, Index
update took 2736 ms | org.apache.activemq.store.kahadb.AbstractKahaDBStore | JobScheduler:JMS
> 2015-03-31 06:12:19,786 | INFO  | Slow KahaDB access: Journal append took: 0 ms, Index
update took 2663 ms | org.apache.activemq.store.kahadb.AbstractKahaDBStore | JobScheduler:JMS
> 2015-03-31 06:13:08,826 | INFO  | Slow KahaDB access: Journal append took: 1 ms, Index
update took 2770 ms | org.apache.activemq.store.kahadb.AbstractKahaDBStore | JobScheduler:JMS
> 2015-03-31 06:13:32,862 | INFO  | Slow KahaDB access: Journal append took: 1 ms, Index
update took 2819 ms | org.apache.activemq.store.kahadb.AbstractKahaDBStore | JobScheduler:JMS
> 2015-03-31 06:14:08,931 | INFO  | Slow KahaDB access: Journal append took: 0 ms, Index
update took 2885 ms | org.apache.activemq.store.kahadb.AbstractKahaDBStore | JobScheduler:JMS
> 2015-03-31 06:14:42,495 | INFO  | Slow KahaDB access: cleanup took 3480 | org.apache.activemq.store.kahadb.AbstractKahaDBStore
| ActiveMQ Journal Checkpoint Worker
> 2015-03-31 06:16:13,040 | INFO  | Slow KahaDB access: cleanup took 3341 | org.apache.activemq.store.kahadb.AbstractKahaDBStore
| ActiveMQ Journal Checkpoint Worker
> 2015-03-31 06:16:43,920 | INFO  | Slow KahaDB access: cleanup took 3760 | org.apache.activemq.store.kahadb.AbstractKahaDBStore
| ActiveMQ Journal Checkpoint Worker
> 2015-03-31 06:17:14,221 | INFO  | Slow KahaDB access: cleanup took 3717 | org.apache.activemq.store.kahadb.AbstractKahaDBStore
| ActiveMQ Journal Checkpoint Worker
> 2015-03-31 06:17:44,498 | INFO  | Slow KahaDB access: cleanup took 3722 | org.apache.activemq.store.kahadb.AbstractKahaDBStore
| ActiveMQ Journal Checkpoint Worker
> 2015-03-31 06:18:20,988 | INFO  | Slow KahaDB access: Journal append took: 1 ms, Index
update took 2971 ms | org.apache.activemq.store.kahadb.AbstractKahaDBStore | JobScheduler:JMS



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