Victor Xu created HBASE-14954:
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Summary: IllegalArgumentException was thrown when doing online
configuration change in CompactSplitThread
Key: HBASE-14954
URL: https://issues.apache.org/jira/browse/HBASE-14954
Project: HBase
Issue Type: Bug
Components: Compaction, regionserver
Affects Versions: 1.1.2
Reporter: Victor Xu
Assignee: Victor Xu
Online configuration change is a terrific feature for HBase administrators.
However, when we use this feature to tune compaction thread pool size online,
it triggered a IllegalArgumentException. The cause is the order of
setMaximumPoolSize() and setCorePoolSize() of ThreadPoolExecutor: when turning
parameters bigger, we should setMax first; when turning parameters smaller, we
need to setCore first. Besides, there is also a copy-code bug in merge and
split thread pool which I will fix together.
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