[jira] [Created] (HBASE-27357) Online schema migration causes the master to report a very high or negative number of QPS

["Benoit Sigoure (Jira)" <ji...@apache.org>]

Benoit Sigoure created HBASE-27357:
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             Summary: Online schema migration causes the master to report a very high or negative number of QPS
                 Key: HBASE-27357
                 URL: https://issues.apache.org/jira/browse/HBASE-27357
             Project: HBase
          Issue Type: Bug
          Components: master
    Affects Versions: 2.4.12
         Environment: |JVM Version|Oracle Corporation 11.0.15-11.0.15+10|
            Reporter: Benoit Sigoure
         Attachments: Screen Shot 2022-09-05 at 18.31.00.png, Screen Shot 2022-09-05 at 18.31.06.png

We've seen this a few times when making an online schema change, e.g.:
{code:java}
alter 'foo', {NAME=>'e',VERSIONS=>'2147483646'} {code}
This causes the master to briefly show extremely high QPS per regionserver, and probably causes an integer overflow in the sum.

!Screen Shot 2022-09-05 at 18.31.00.png|width=859,height=323!

...

!Screen Shot 2022-09-05 at 18.31.06.png|width=856,height=322!

This could be related to the issue reported in HBASE-27242.



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