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From st...@apache.org
Subject svn commit: r1591126 - /hbase/trunk/hbase-common/src/main/resources/hbase-default.xml
Date Tue, 29 Apr 2014 22:26:01 GMT
Author: stack
Date: Tue Apr 29 22:26:00 2014
New Revision: 1591126

URL: http://svn.apache.org/r1591126
Log:
More fixup on the checksum verify description

Modified:
    hbase/trunk/hbase-common/src/main/resources/hbase-default.xml

Modified: hbase/trunk/hbase-common/src/main/resources/hbase-default.xml
URL: http://svn.apache.org/viewvc/hbase/trunk/hbase-common/src/main/resources/hbase-default.xml?rev=1591126&r1=1591125&r2=1591126&view=diff
==============================================================================
--- hbase/trunk/hbase-common/src/main/resources/hbase-default.xml (original)
+++ hbase/trunk/hbase-common/src/main/resources/hbase-default.xml Tue Apr 29 22:26:00 2014
@@ -1027,16 +1027,16 @@ possible configurations would overwhelm 
     <name>hbase.regionserver.checksum.verify</name>
     <value>true</value>
     <description>
-        If set to true, HBase will verify checksums for hfile blocks. HBase
-        writes checksums inline with the data when it writes out hfiles. HDFS
-        writes checksums to a separate file from data necessitating extra seeks.
-        Setting this flag should save some on i/o.  Checksum verification by
-        HDFS will be internally disabled on hfile streams when this flag is set.
-        If the hbase-checksum verification fails, we will switch back to using
-        HDFS checksums (so do not disable HDFS checksums!  And besides this
-        feature applies to hfiles only, not to WALs).  If this parameter is set
-        to false, then hbase will not verify any checksums, instead it will
-        depend on checksum verification being done in the HDFS client.  
+        If set to true (the default), HBase verifies the checksums for hfile
+        blocks. HBase writes checksums inline with the data when it writes out
+        hfiles. HDFS (as of this writing) writes checksums to a separate file
+        than the data file necessitating extra seeks.  Setting this flag saves
+        some on i/o.  Checksum verification by HDFS will be internally disabled
+        on hfile streams when this flag is set.  If the hbase-checksum verification
+        fails, we will switch back to using HDFS checksums (so do not disable HDFS
+        checksums!  And besides this feature applies to hfiles only, not to WALs).
+        If this parameter is set to false, then hbase will not verify any checksums,
+        instead it will depend on checksum verification being done in the HDFS client.  
     </description>
   </property>
   <property>



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