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HBASE-1138 Set default HLog block size. 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/hbase/trunk@736359 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Jim Kellerman 2009-01-21 18:18:02 +00:00
parent 1dd27a5c82
commit 8bd2b4d7bd
2 changed files with 9 additions and 1 deletions
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8
conf/hbase-default.xml
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@ -180,6 +180,14 @@
milliseconds. milliseconds.
</description> </description>
</property> </property>
<property>
<name>hbase.regionserver.hlog.blocksize</name>
<value>67108864</value>
<description>Block size for HLog files. To minimize potential data loss,
the size should be (avg key length) * (avg value length) * flushlogentries.
Default 64MB.
</description>
</property>
<property> <property>
<name>hbase.regionserver.thread.splitcompactcheckfrequency</name> <name>hbase.regionserver.thread.splitcompactcheckfrequency</name>
<value>20000</value> <value>20000</value>

2
src/java/org/apache/hadoop/hbase/regionserver/HLog.java
View File

@ -174,7 +174,7 @@ public class HLog implements HConstants, Syncable {
this.flushlogentries = this.flushlogentries =
conf.getInt("hbase.regionserver.flushlogentries", 100); conf.getInt("hbase.regionserver.flushlogentries", 100);
this.blocksize = this.blocksize =
conf.getLong("hbase.regionserver.hlog.blocksize", 1024L * 1024L); conf.getLong("hbase.regionserver.hlog.blocksize", 1024L * 1024L * 64L);
this.optionalFlushInterval = this.optionalFlushInterval =
conf.getLong("hbase.regionserver.optionallogflushinterval", 10 * 1000); conf.getLong("hbase.regionserver.optionallogflushinterval", 10 * 1000);
this.threadWakeFrequency = conf.getLong(THREAD_WAKE_FREQUENCY, 10 * 1000); this.threadWakeFrequency = conf.getLong(THREAD_WAKE_FREQUENCY, 10 * 1000);