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https://issues.apache.org/jira/browse/HBASE-11240?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Liu Shaohui updated HBASE-11240:
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Attachment: HBASE-11240-trunk-v2.diff
Add the pipeline of slow sync in info log.
Thanks the reviews of [~stack] and [~ndimiduk].
What about the default slow sync threshold: 100ms?
Is it too small? Too small threshold will bring too many info log.
> Print hdfs pipeline when hlog's sync is slow
> --------------------------------------------
>
> Key: HBASE-11240
> URL: https://issues.apache.org/jira/browse/HBASE-11240
> Project: HBase
> Issue Type: Improvement
> Components: wal
> Reporter: Liu Shaohui
> Assignee: Liu Shaohui
> Fix For: 0.99.0
>
> Attachments: HBASE-11240-trunk-v1.diff, HBASE-11240-trunk-v2.diff
>
>
> Sometimes the slow sync of hlog writer is because there is an abnormal
> datanode in the pipeline. So it will be helpful to print the pipeline of slow
> sync to diagnose those problems.
> The ultimate solution is to join the trace of HBase and HDFS.
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