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https://issues.apache.org/jira/browse/BOOKKEEPER-564?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ivan Kelly updated BOOKKEEPER-564:
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Attachment: 0001-BOOKKEEPER-564-Better-checkpoint-mechanism.patch
New patch moves the sync thread into the ledger storage, removing the need for
the checkpointer interface.
org.apache.bookkeeper.test.ReadOnlyBookieTest still failing, as in Sijie's
patch.
> Better checkpoint mechanism
> ---------------------------
>
> Key: BOOKKEEPER-564
> URL: https://issues.apache.org/jira/browse/BOOKKEEPER-564
> Project: Bookkeeper
> Issue Type: Improvement
> Components: bookkeeper-server
> Reporter: Sijie Guo
> Assignee: Sijie Guo
> Fix For: 4.3.0
>
> Attachments: 0001-BOOKKEEPER-564-Better-checkpoint-mechanism.patch,
> 0002-BOOKKEEPER-564-Better-checkpoint-mechanism.patch, BOOKKEEPER-564.patch,
> BOOKKEEPER-564.patch
>
>
> Currently, SyncThread made a checkpoint too frequently, which affects
> performance. data is writing to entry logger file might be blocked by syncing
> same entry logger file, which affect bookie to achieve higher throughput. We
> could schedule checkpoint only when rotating an entry log file. so new
> incoming entries would be written to newer entry log file and old entry log
> file could be synced.
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