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https://issues.apache.org/jira/browse/HBASE-7325?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13728274#comment-13728274
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Lars Hofhansl commented on HBASE-7325:
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If you feel strongly, fine by me. We can always jack up sleepforretries.
> Replication reacts slowly on a lightly-loaded cluster
> -----------------------------------------------------
>
> Key: HBASE-7325
> URL: https://issues.apache.org/jira/browse/HBASE-7325
> Project: HBase
> Issue Type: Bug
> Components: Replication
> Reporter: Gabriel Reid
> Priority: Minor
> Attachments: HBASE-7325.patch, HBASE-7325.v2.patch
>
>
> ReplicationSource uses a backing-off algorithm to sleep for an increasing
> duration when an error is encountered in the replication run loop. However,
> this backing-off is also performed when there is nothing found to replicate
> in the HLog.
> Assuming default settings (1 second base retry sleep time, and maximum
> multiplier of 10), this means that replication takes up to 10 seconds to
> occur when there is a break of about 55 seconds without anything being
> written. As there is no error condition, and there is apparently no
> substantial load on the regionserver in this situation, it would probably
> make more sense to not back off in non-error situations.
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