Eric Edgeworth created HBASE-7708:
-------------------------------------
Summary: deprecated call in region_mover.rb causing high cpu
utilization
Key: HBASE-7708
URL: https://issues.apache.org/jira/browse/HBASE-7708
Project: HBase
Issue Type: Improvement
Components: scripts
Reporter: Eric Edgeworth
Priority: Minor
We noticed high CPU utilization while using region_mover.rb to unload regions.
Consulted with Stack, who suggested changing a line in region_mover.rb from
(the deprecated):
{code}
table = getTable(admin.getConfiguration(), r.getTableDesc().getName())
{code}
to:
{code}
table = getTable(admin.getConfiguration(), r.getTableName())
{code}
In our tests this dropped CPU utilization from ~200% over the course of the
unload to ~0.5% after startup, and allowed unload of ~200 regions to complete
in ~7 minutes instead of the original ~18 minutes, so the change seems to fix
the CPU utilization issue with no untoward side effects we could find.
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