Zhuoyue Huang created HBASE-25549:
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Summary: A new hbase shell command: 'lazy_alter'
Key: HBASE-25549
URL: https://issues.apache.org/jira/browse/HBASE-25549
Project: HBase
Issue Type: Improvement
Components: master, shell
Affects Versions: 3.0.0-alpha-1
Reporter: Zhuoyue Huang
Assignee: Zhuoyue Huang
Fix For: 3.0.0-alpha-1
Under normal circumstances, modifying a table will cause all regions belonging
to the table to enter RIT. Imagine the following two scenarios：
# Someone entered the wrong configuration （e.g. negative
'hbase.busy.wait.multiplier.max' value） when altering the table, causing
thousands of online regions to fail to open, leading to online accidents.
# Modify the configuration of a table, but this modification is not urgent,
the regions are not expected to enter RIT immediately.
'lazy_alter' is a new command to modify a table without reopening any online
regions except those regions were assigned by other threads or split etc.
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