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https://issues.apache.org/jira/browse/IGNITE-8957?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16540183#comment-16540183
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Maxim Muzafarov commented on IGNITE-8957:
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[~akalashnikov],
Nice notion! I'm voting for printing first and last id of segments in clear for
reading logs format e.g. {{[5 - 8]}} or {{from 5 to 8}}.
Also, I think nice to have the same printing format for cleared segments.
May be we should create separate task for it?
> testFailGetLock() constantly fails. Last entry checkpoint history can be empty
> ------------------------------------------------------------------------------
>
> Key: IGNITE-8957
> URL: https://issues.apache.org/jira/browse/IGNITE-8957
> Project: Ignite
> Issue Type: Bug
> Components: persistence
> Affects Versions: 2.7
> Reporter: Maxim Muzafarov
> Assignee: Andrew Medvedev
> Priority: Major
> Labels: MakeTeamcityGreenAgain
>
> IgniteChangeGlobalStateTest#testFailGetLock constantly fails with exception:
> {code}
> java.lang.AssertionError
> at
> org.apache.ignite.internal.processors.cache.persistence.checkpoint.CheckpointHistory.onCheckpointFinished(CheckpointHistory.java:205)
> at
> org.apache.ignite.internal.processors.cache.persistence.GridCacheDatabaseSharedManager$Checkpointer.markCheckpointEnd(GridCacheDatabaseSharedManager.java:3654)
> at
> org.apache.ignite.internal.processors.cache.persistence.GridCacheDatabaseSharedManager$Checkpointer.doCheckpoint(GridCacheDatabaseSharedManager.java:3178)
> at
> org.apache.ignite.internal.processors.cache.persistence.GridCacheDatabaseSharedManager$Checkpointer.body(GridCacheDatabaseSharedManager.java:2953)
> at
> org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:110)
> at java.lang.Thread.run(Thread.java:748)
> {code}
> As Sergey Chugunov
> [mentioned|https://issues.apache.org/jira/browse/IGNITE-8737?focusedCommentId=16535062&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-16535062],
> issue can be solved different ways:
> {quote}
> It seems we missed a case when lastEntry may be empty. We may choose here
> from two options:
> * Check if histMap is empty inside onCheckpointFinished. If it is just don't
> log anything (it was the very first checkpoint).
> * Check in caller that there is no history, calculate necessary index in
> caller and pass it to onCheckpointFinished to prepare correct log
> message.{quote}
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