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https://issues.apache.org/jira/browse/DERBY-2926?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jørgen Løland updated DERBY-2926:
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Derby Info: [Patch Available]
> Replication: Add a log buffer for log records that should be shipped to the
> slave
> ---------------------------------------------------------------------------------
>
> Key: DERBY-2926
> URL: https://issues.apache.org/jira/browse/DERBY-2926
> Project: Derby
> Issue Type: Sub-task
> Components: Services
> Affects Versions: 10.4.0.0
> Reporter: Jørgen Løland
> Assignee: Jørgen Løland
> Fix For: 10.4.0.0
>
> Attachments: bytebuffer_resizefix_1.diff,
> bytebuffer_resizefix_1.stat, bytebuffer_v1-fixheader.diff,
> bytebuffer_v1-fixheader.stat, bytebuffer_v1.diff, bytebuffer_v1.stat,
> bytebuffer_v1a.diff, bytebuffer_v1a.stat, bytebuffer_v2.diff,
> bytebuffer_v2.stat, bytebuffer_v2b.diff, bytebuffer_v2b.stat
>
>
> When a Derby instance has the master role for a database, log records are
> shipped to the slave to keep it up to date. A buffer is needed because the
> log records should not be shipped one at a time. Also, writing the log
> records to a buffer instead of sending them immediately removes the network
> communication from the critical path for the transaction.
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