Jerry He created HBASE-12682:
--------------------------------
Summary: compaction thread throttle value is not correct in
hbase-default.xml
Key: HBASE-12682
URL: https://issues.apache.org/jira/browse/HBASE-12682
Project: HBase
Issue Type: Bug
Components: regionserver
Affects Versions: 2.0.0
Reporter: Jerry He
Assignee: Jerry He
Fix For: 2.0.0
While doing some compaction tuning and looking up some of the parameters, I
noticed that hbase.regionserver.thread.compaction.throttle default value in the
documentation and in hbase-site.xml seems to be off the mark.
{code}
<property>
<name>hbase.regionserver.thread.compaction.throttle</name>
<value>2560</value>
<description>There are two different thread pools for compactions, one for
large compactions and
the other for small compactions. This helps to keep compaction of lean
tables (such as
<systemitem>hbase:meta</systemitem>) fast. If a compaction is larger
than this threshold, it
goes into the large compaction pool. In most cases, the default value is
appropriate. Default:
2 x hbase.hstore.compaction.max x hbase.hregion.memstore.flush.size
(which defaults to 128).
The value field assumes that the value of
hbase.hregion.memstore.flush.size is unchanged from
the default.</description>
</property>
{code}
It should be in bytes. Or am I miss anyting?
It is not a problem in 0.98 since the property is not in hbase-site.xml over
there. It is obtained dynamically:
{code}
throttlePoint = conf.getLong("hbase.regionserver.thread.compaction.throttle",
2 * maxFilesToCompact * storeConfigInfo.getMemstoreFlushSize());
{code}
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
