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HBASE-6076 Improve h.r.global.memstore.upper(lower)Limit description (Alex Baranau via JD) 

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1342079 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Jean-Daniel Cryans 2012-05-23 22:32:19 +00:00
parent 1f242db7f7
commit 1c0181bb61
1 changed files with 5 additions and 3 deletions
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8
src/main/resources/hbase-default.xml
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@ -305,14 +305,16 @@
<name>hbase.regionserver.global.memstore.upperLimit</name>
<value>0.4</value>
<description>Maximum size of all memstores in a region server before new
updates are blocked and flushes are forced. Defaults to 40% of heap
updates are blocked and flushes are forced. Defaults to 40% of heap.
Updates are blocked and flushes are forced until size of all memstores
in a region server hits hbase.regionserver.global.memstore.lowerLimit.
</description>
</property>
<property>
<name>hbase.regionserver.global.memstore.lowerLimit</name>
<value>0.35</value>
<description>When memstores are being forced to flush to make room in
memory, keep flushing until we hit this mark. Defaults to 35% of heap.
<description>Maximum size of all memstores in a region server before
flushes are forced. Defaults to 35% of heap.
This value equal to hbase.regionserver.global.memstore.upperLimit causes
the minimum possible flushing to occur when updates are blocked due to
memstore limiting.