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https://issues.apache.org/jira/browse/HBASE-7183?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13510116#comment-13510116
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Sho Shimauchi commented on HBASE-7183:
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Hi JD,

2 is fine as default but it should also be configurable, because the best 
parameter depends on the size of a cluster.

Alerting when the log is rolled is good. I think the worst case scenario is 
acceptable because network partition itself is really bad and user have to fix 
the situation asap.
                
> print WARN message if hbase.replication.sizeOfLogQueue is too big
> -----------------------------------------------------------------
>
>                 Key: HBASE-7183
>                 URL: https://issues.apache.org/jira/browse/HBASE-7183
>             Project: HBase
>          Issue Type: Improvement
>          Components: Replication
>            Reporter: Sho Shimauchi
>
> A metric hbase.replication.sizeOfLogQueue may become big when replication is 
> delaying.
> It would be useful if HBase prints WARN log which tells 
> hbase.replication.sizeOfLogQueue is too big.

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