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Posted to dev@activemq.apache.org by "Rob Davies (JIRA)" <ji...@apache.org> on 2010/07/20 02:14:55 UTC
[jira] Resolved: (AMQ-2837) Slow KahaDB
[ https://issues.apache.org/activemq/browse/AMQ-2837?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Rob Davies resolved AMQ-2837.
-----------------------------
Assignee: Rob Davies
Resolution: Working as Designed
> Slow KahaDB
> -----------
>
> Key: AMQ-2837
> URL: https://issues.apache.org/activemq/browse/AMQ-2837
> Project: ActiveMQ
> Issue Type: Bug
> Components: Broker
> Affects Versions: 5.3.2
> Environment: Linux
> Reporter: Andy
> Assignee: Rob Davies
>
> I'm using KahaDB for persistence with the following configuration:
> <?xml version="1.0" encoding="UTF-8"?>
> <beans>
> <broker brokerName="test-broker"
> persistent="true"
> useJmx="true"
> useShutdownHook="false"
> deleteAllMessagesOnStartup="false"
> xmlns="http://activemq.apache.org/schema/core">
> <persistenceAdapter>
> <kahaDB directory="activemq-data" journalMaxFileLength="32mb" indexCacheSize="10000000
> "/>
> </persistenceAdapter>
> <transportConnectors>
> <transportConnector uri="tcp://localhost:61616"/>
> </transportConnectors>
> <destinationPolicy>
> <policyMap>
> <policyEntries>
> <policyEntry topic=">">
> <subscriptionRecoveryPolicy>
> <timedSubscriptionRecoveryPolicy recoverDuration="3600000"/>
> </subscriptionRecoveryPolicy>
> </policyEntry>
> </policyEntries>
> </policyMap>
> </destinationPolicy>
> </broker>
> </beans>
> I've some durable consumers. The broker is showing many "Slow KahaDB access" log entries.
> Any suggestions?
> INFO | Slow KahaDB access: Journal append took: 0 ms, Index update took 1248 ms
> INFO | Slow KahaDB access: Journal append took: 0 ms, Index update took 1560 ms
> INFO | Slow KahaDB access: Journal append took: 1 ms, Index update took 1227 ms
> INFO | Slow KahaDB access: Journal append took: 0 ms, Index update took 1227 ms
> INFO | Slow KahaDB access: Journal append took: 1480 ms, Index update took 0 ms
> INFO | Slow KahaDB access: Journal append took: 5 ms, Index update took 1302 ms
> INFO | Slow KahaDB access: Journal append took: 0 ms, Index update took 1302 ms
> INFO | Slow KahaDB access: Journal append took: 13 ms, Index update took 1348 ms
> INFO | Slow KahaDB access: Journal append took: 0 ms, Index update took 1590 ms
> INFO | Slow KahaDB access: Journal append took: 1327 ms, Index update took 0 ms
> INFO | Slow KahaDB access: Journal append took: 0 ms, Index update took 1263 ms
> INFO | Slow KahaDB access: Journal append took: 1 ms, Index update took 1276 ms
> INFO | Slow KahaDB access: Journal append took: 0 ms, Index update took 1277 ms
> INFO | Slow KahaDB access: Journal append took: 0 ms, Index update took 1318 ms
> INFO | Slow KahaDB access: Journal append took: 0 ms, Index update took 1312 ms
> INFO | Slow KahaDB access: Journal append took: 0 ms, Index update took 1593 ms
> INFO | Slow KahaDB access: Journal append took: 3 ms, Index update took 1608 ms
> INFO | Slow KahaDB access: Journal append took: 0 ms, Index update took 1302 ms
> INFO | Slow KahaDB access: Journal append took: 3 ms, Index update took 1317 ms
> INFO | Slow KahaDB access: Journal append took: 0 ms, Index update took 1318 ms
> INFO | Slow KahaDB access: Journal append took: 2 ms, Index update took 1316 ms
> INFO | Slow KahaDB access: Journal append took: 1318 ms, Index update took 1 ms
> INFO | Slow KahaDB access: Journal append took: 0 ms, Index update took 1296 ms
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RE: [jira] Resolved: (AMQ-2837) Slow KahaDB
Posted by "Davis, Dorothea" <Do...@homedepot.com>.
In the link it has the following statement... but how do I check my disk speed and how do I determine what exactly to set the "time=" to? What's the actual formula?
" You can configure a threshold used to log the message by using
-Dorg.apache.activemq.store.kahadb.LOG_SLOW_ACCESS_TIME=1500
system property and adjust it to your disk speed. "
Thanks for your help!
Dorothea Davis
The Home Depot
(w) (770) 433-8211 x17476
(c) (404) 314-0352
dorothea_davis@homedepot.com
-----Original Message-----
From: Rob Davies (JIRA) [mailto:jira@apache.org]
Sent: Monday, July 19, 2010 8:15 PM
To: dev@activemq.apache.org
Subject: [jira] Resolved: (AMQ-2837) Slow KahaDB
[ https://issues.apache.org/activemq/browse/AMQ-2837?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Rob Davies resolved AMQ-2837.
-----------------------------
Assignee: Rob Davies
Resolution: Working as Designed
> Slow KahaDB
> -----------
>
> Key: AMQ-2837
> URL: https://issues.apache.org/activemq/browse/AMQ-2837
> Project: ActiveMQ
> Issue Type: Bug
> Components: Broker
> Affects Versions: 5.3.2
> Environment: Linux
> Reporter: Andy
> Assignee: Rob Davies
>
> I'm using KahaDB for persistence with the following configuration:
> <?xml version="1.0" encoding="UTF-8"?>
> <beans>
> <broker brokerName="test-broker"
> persistent="true"
> useJmx="true"
> useShutdownHook="false"
> deleteAllMessagesOnStartup="false"
> xmlns="http://activemq.apache.org/schema/core">
> <persistenceAdapter>
> <kahaDB directory="activemq-data" journalMaxFileLength="32mb" indexCacheSize="10000000
> "/>
> </persistenceAdapter>
> <transportConnectors>
> <transportConnector uri="tcp://localhost:61616"/>
> </transportConnectors>
> <destinationPolicy>
> <policyMap>
> <policyEntries>
> <policyEntry topic=">">
> <subscriptionRecoveryPolicy>
> <timedSubscriptionRecoveryPolicy recoverDuration="3600000"/>
> </subscriptionRecoveryPolicy>
> </policyEntry>
> </policyEntries>
> </policyMap>
> </destinationPolicy>
> </broker>
> </beans>
> I've some durable consumers. The broker is showing many "Slow KahaDB access" log entries.
> Any suggestions?
> INFO | Slow KahaDB access: Journal append took: 0 ms, Index update took 1248 ms
> INFO | Slow KahaDB access: Journal append took: 0 ms, Index update took 1560 ms
> INFO | Slow KahaDB access: Journal append took: 1 ms, Index update took 1227 ms
> INFO | Slow KahaDB access: Journal append took: 0 ms, Index update took 1227 ms
> INFO | Slow KahaDB access: Journal append took: 1480 ms, Index update took 0 ms
> INFO | Slow KahaDB access: Journal append took: 5 ms, Index update took 1302 ms
> INFO | Slow KahaDB access: Journal append took: 0 ms, Index update took 1302 ms
> INFO | Slow KahaDB access: Journal append took: 13 ms, Index update took 1348 ms
> INFO | Slow KahaDB access: Journal append took: 0 ms, Index update took 1590 ms
> INFO | Slow KahaDB access: Journal append took: 1327 ms, Index update took 0 ms
> INFO | Slow KahaDB access: Journal append took: 0 ms, Index update took 1263 ms
> INFO | Slow KahaDB access: Journal append took: 1 ms, Index update took 1276 ms
> INFO | Slow KahaDB access: Journal append took: 0 ms, Index update took 1277 ms
> INFO | Slow KahaDB access: Journal append took: 0 ms, Index update took 1318 ms
> INFO | Slow KahaDB access: Journal append took: 0 ms, Index update took 1312 ms
> INFO | Slow KahaDB access: Journal append took: 0 ms, Index update took 1593 ms
> INFO | Slow KahaDB access: Journal append took: 3 ms, Index update took 1608 ms
> INFO | Slow KahaDB access: Journal append took: 0 ms, Index update took 1302 ms
> INFO | Slow KahaDB access: Journal append took: 3 ms, Index update took 1317 ms
> INFO | Slow KahaDB access: Journal append took: 0 ms, Index update took 1318 ms
> INFO | Slow KahaDB access: Journal append took: 2 ms, Index update took 1316 ms
> INFO | Slow KahaDB access: Journal append took: 1318 ms, Index update took 1 ms
> INFO | Slow KahaDB access: Journal append took: 0 ms, Index update took 1296 ms
--
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You can reply to this email to add a comment to the issue online.
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