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Posted to commits@hbase.apache.org by ji...@apache.org on 2009/01/21 19:18:02 UTC
svn commit: r736359 - in /hadoop/hbase/trunk: conf/hbase-default.xml
src/java/org/apache/hadoop/hbase/regionserver/HLog.java
Author: jimk
Date: Wed Jan 21 10:18:02 2009
New Revision: 736359
URL: http://svn.apache.org/viewvc?rev=736359&view=rev
Log:
HBASE-1138 Set default HLog block size.
Modified:
hadoop/hbase/trunk/conf/hbase-default.xml
hadoop/hbase/trunk/src/java/org/apache/hadoop/hbase/regionserver/HLog.java
Modified: hadoop/hbase/trunk/conf/hbase-default.xml
URL: http://svn.apache.org/viewvc/hadoop/hbase/trunk/conf/hbase-default.xml?rev=736359&r1=736358&r2=736359&view=diff
==============================================================================
--- hadoop/hbase/trunk/conf/hbase-default.xml (original)
+++ hadoop/hbase/trunk/conf/hbase-default.xml Wed Jan 21 10:18:02 2009
@@ -181,6 +181,14 @@
</description>
</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>
<name>hbase.regionserver.thread.splitcompactcheckfrequency</name>
<value>20000</value>
<description>How often a region server runs the split/compaction check.
Modified: hadoop/hbase/trunk/src/java/org/apache/hadoop/hbase/regionserver/HLog.java
URL: http://svn.apache.org/viewvc/hadoop/hbase/trunk/src/java/org/apache/hadoop/hbase/regionserver/HLog.java?rev=736359&r1=736358&r2=736359&view=diff
==============================================================================
--- hadoop/hbase/trunk/src/java/org/apache/hadoop/hbase/regionserver/HLog.java (original)
+++ hadoop/hbase/trunk/src/java/org/apache/hadoop/hbase/regionserver/HLog.java Wed Jan 21 10:18:02 2009
@@ -174,7 +174,7 @@
this.flushlogentries =
conf.getInt("hbase.regionserver.flushlogentries", 100);
this.blocksize =
- conf.getLong("hbase.regionserver.hlog.blocksize", 1024L * 1024L);
+ conf.getLong("hbase.regionserver.hlog.blocksize", 1024L * 1024L * 64L);
this.optionalFlushInterval =
conf.getLong("hbase.regionserver.optionallogflushinterval", 10 * 1000);
this.threadWakeFrequency = conf.getLong(THREAD_WAKE_FREQUENCY, 10 * 1000);