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Posted to oak-issues@jackrabbit.apache.org by "angela (JIRA)" <ji...@apache.org> on 2016/05/19 12:44:12 UTC

[jira] [Created] (OAK-4379) Batch mode for SyncMBeanImpl

angela created OAK-4379:
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             Summary: Batch mode for SyncMBeanImpl
                 Key: OAK-4379
                 URL: https://issues.apache.org/jira/browse/OAK-4379
             Project: Jackrabbit Oak
          Issue Type: Improvement
          Components: auth-external
            Reporter: angela


the {{SyncMBeanImpl}} currently calls {{Session.save()}} for every single sync, which IMO make the synchronization methods extra expensive.

IMHO we should consider introducing a batch mode that reduces the number of save calls. the drawback of this was that the complete set of sync-calls withing a given batch would succeed or fail. in case of failure the 'original' sync-result would need to be replaced by one with operation status 'ERR'.

now that we have the basis for running benchmarks for the {{SyncMBeanImpl}}, we should be able to verify if this proposal actually has a positive impact (though benchmark results from OAK-4119 and OAK-4120 seem to indicate that this is the case).



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