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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