[jira] [Created] (HBASE-26525) Use unique thread name for group WALs

[Xiaolin Ha (Jira)]

Xiaolin Ha created HBASE-26525:
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             Summary: Use unique thread name for group WALs
                 Key: HBASE-26525
                 URL: https://issues.apache.org/jira/browse/HBASE-26525
             Project: HBase
          Issue Type: Improvement
          Components: wal
    Affects Versions: 2.0.0, 3.0.0-alpha-1
            Reporter: Xiaolin Ha
            Assignee: Xiaolin Ha
         Attachments: image-2021-12-01-16-20-18-912.png, 
image-2021-12-01-16-21-18-032.png

The consumer threads for each WAL group has the same names, since they only 
uses the WAL root dir in the thread name.
{code:java}
new ThreadFactoryBuilder().setNameFormat("AsyncFSWAL-%d-" + rootDir.toString()).
  setDaemon(true).build()); {code}
For example, for BoundedGroupingStrategy, the consumer threads name are as 
follows,

!image-2021-12-01-16-20-18-912.png|width=1199,height=130!

We can use the log prefix instead, the consumer threads names will be changed to

!image-2021-12-01-16-21-18-032.png|width=852,height=153!

So we can clearly see what happens from the log and the jstack info if 
something wrong with the WAL.

 



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