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https://issues.apache.org/jira/browse/AMQ-7281?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17274585#comment-17274585
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Jeff Oh commented on AMQ-7281:
------------------------------
We have also encountered this bug in production, and it was a most unwelcome
surprise.
> KahaDB Scheduler log files not being deleted
> --------------------------------------------
>
> Key: AMQ-7281
> URL: https://issues.apache.org/jira/browse/AMQ-7281
> Project: ActiveMQ
> Issue Type: New Feature
> Components: KahaDB
> Affects Versions: 5.15.4, 5.15.9
> Environment: RHEL 7.6 x86_64
> jdk1.8.0_172
> Reporter: Sergiy Dryga
> Priority: Minor
> Attachments: kahadb_log_1.txt, kahadb_scheduler.png,
> scheduler_log_1.txt
>
>
> Dear Support Team!
> I faced with a problem with KahaDB Scheduler, it doesn't delete old log
> files. It looks similar to previously reported issue AMQ-6152, see
> 'scheduler_log_1.txt'. But after testing I noticed that it's not the same
> problem, KahaDB Scheduler deletes not used files well.
> Investigation also showed that the most old file contains pending message,
> it's ok. But there are a lot of files without any panding messages. I assumed
> that it contains ACK and added enableAckCompaction="true" and
> compactAcksIgnoresStoreGrowth="true" to the config:
> <persistenceAdapter>
> <kahaDB
> directory="${activemq.data}/static-broker/kahadb"
> journalMaxFileLength="1mb"
> cleanupInterval="60000"
> enableIndexWriteAsync="true"
> journalDiskSyncStrategy="never"
> enableAckCompaction="true"
> compactAcksIgnoresStoreGrowth="true"
> indexCacheSize="100000"
> indexWriteBatchSize="5000"
> checkForCorruptJournalFiles="true"
> ignoreMissingJournalfiles="true" />
> </persistenceAdapter>
> And yes, it looks like KahaDB started to move ACK, see 'kahadb_log_1.txt'.
> But it doesn't work with KahaDB Scheduler, it's not possible to specify ACK
> compaction options in 'jobSchedulerStore' config section:
> <jobSchedulerStore>
> <bean xmlns="http://www.springframework.org/schema/beans";
> id="jobSchedulerStore"
> class="org.apache.activemq.store.kahadb.scheduler.JobSchedulerStoreImpl">
> <property name="directory" value="${activemq.data}/static-broker/scheduler"
> />
> <property name="journalMaxFileLength" value="1000000"/>
> </bean>
> </jobSchedulerStore>
> How is it possible to solve this problem?
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