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https://issues.apache.org/jira/browse/AMQ-9780?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18028114#comment-18028114
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ASF subversion and git services commented on AMQ-9780:
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Commit 3858d3047ef5b2e03e9cc3c834ee0ec17c1ae0f3 in activemq's branch
refs/heads/activemq-6.1.x from Matt Pavlovich
[ https://gitbox.apache.org/repos/asf?p=activemq.git;h=3858d3047e ]
[AMQ-9780] Add a null guard during checkpointUpdate when kahadb is logging in
TRACE mode (#1506)
> Error recovering KahaDB while TRACE logging
> -------------------------------------------
>
> Key: AMQ-9780
> URL: https://issues.apache.org/jira/browse/AMQ-9780
> Project: ActiveMQ Classic
> Issue Type: Bug
> Affects Versions: 5.18.3
> Reporter: Matt Pavlovich
> Assignee: Matt Pavlovich
> Priority: Major
> Fix For: 6.2.0, 5.19.1, 6.1.8
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> Log message when attempting recovery with 5,000+ kahadb log file and TRACE
> log enabled
> {noformat}
> ERROR | Checkpoint failed | ActiveMQ Journal Checkpoint Worker
> java.lang.NullPointerException: Cannot invoke
> "org.apache.activemq.store.kahadb.disk.util.SequenceSet.rangeSize()" because
> "pendingAcks" is null
> at
> org.apache.activemq.store.kahadb.MessageDatabase.checkpointUpdate(MessageDatabase.java:1969)
> ~[activemq-kahadb-store-5.18.3.jar:5.18.3]
> at
> org.apache.activemq.store.kahadb.MessageDatabase$18.execute(MessageDatabase.java:1793)
> ~[activemq-kahadb-store-5.18.3.jar:5.18.3]
> at
> org.apache.activemq.store.kahadb.MessageDatabase$18.execute(MessageDatabase.java:1790)
> ~[activemq-kahadb-store-5.18.3.jar:5.18.3]
> at
> org.apache.activemq.store.kahadb.disk.page.Transaction.execute(Transaction.java:810)
> ~[activemq-kahadb-store-5.18.3.jar:5.18.3]
> at
> org.apache.activemq.store.kahadb.MessageDatabase.checkpointUpdate(MessageDatabase.java:1790)
> ~[activemq-kahadb-store-5.18.3.jar:5.18.3]
> at
> org.apache.activemq.store.kahadb.MessageDatabase.checkpointCleanup(MessageDatabase.java:1105)
> ~[activemq-kahadb-store-5.18.3.jar:5.18.3]
> at
> org.apache.activemq.store.kahadb.MessageDatabase$CheckpointRunner.run(MessageDatabase.java:441)
> ~[activemq-kahadb-store-5.18.3.jar:5.18.3]
> at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
> ~[?:?]
> at java.util.concurrent.FutureTask.runAndReset(Unknown Source) ~[?:?]
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown
> Source) ~[?:?]
> at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
> ~[?:?]
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
> ~[?:?]
> at java.lang.Thread.run(Unknown Source) [?:?]
> {noformat}
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