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From ndimi...@apache.org
Subject hbase git commit: HBASE-13584 Disable distributed log replay by default for 1.1
Date Tue, 28 Apr 2015 23:32:30 GMT
Repository: hbase
Updated Branches:
  refs/heads/branch-1.1 3fba9de03 -> 76bb8750b


HBASE-13584 Disable distributed log replay by default for 1.1


Project: http://git-wip-us.apache.org/repos/asf/hbase/repo
Commit: http://git-wip-us.apache.org/repos/asf/hbase/commit/76bb8750
Tree: http://git-wip-us.apache.org/repos/asf/hbase/tree/76bb8750
Diff: http://git-wip-us.apache.org/repos/asf/hbase/diff/76bb8750

Branch: refs/heads/branch-1.1
Commit: 76bb8750b41310a9fa7370af741ea1214f544c4b
Parents: 3fba9de
Author: Nick Dimiduk <ndimiduk@apache.org>
Authored: Tue Apr 28 14:07:48 2015 -0700
Committer: Nick Dimiduk <ndimiduk@apache.org>
Committed: Tue Apr 28 14:07:48 2015 -0700

----------------------------------------------------------------------
 .../main/java/org/apache/hadoop/hbase/HConstants.java    |  4 +---
 hbase-common/src/main/resources/hbase-default.xml        | 11 +++++------
 2 files changed, 6 insertions(+), 9 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/hbase/blob/76bb8750/hbase-common/src/main/java/org/apache/hadoop/hbase/HConstants.java
----------------------------------------------------------------------
diff --git a/hbase-common/src/main/java/org/apache/hadoop/hbase/HConstants.java b/hbase-common/src/main/java/org/apache/hadoop/hbase/HConstants.java
index 2ec2eff..7438171 100644
--- a/hbase-common/src/main/java/org/apache/hadoop/hbase/HConstants.java
+++ b/hbase-common/src/main/java/org/apache/hadoop/hbase/HConstants.java
@@ -869,10 +869,8 @@ public final class HConstants {
 
   /** Conf key that enables unflushed WAL edits directly being replayed to region servers
*/
   public static final String DISTRIBUTED_LOG_REPLAY_KEY = "hbase.master.distributed.log.replay";
-  /**
-   * Default 'distributed log replay' as true since hbase 1.1 (HBASE-12577)
-   */
   public static final boolean DEFAULT_DISTRIBUTED_LOG_REPLAY_CONFIG = false;
+
   public static final String DISALLOW_WRITES_IN_RECOVERING =
       "hbase.regionserver.disallow.writes.when.recovering";
   public static final boolean DEFAULT_DISALLOW_WRITES_IN_RECOVERING_CONFIG = false;

http://git-wip-us.apache.org/repos/asf/hbase/blob/76bb8750/hbase-common/src/main/resources/hbase-default.xml
----------------------------------------------------------------------
diff --git a/hbase-common/src/main/resources/hbase-default.xml b/hbase-common/src/main/resources/hbase-default.xml
index 86a5104..69b1f8b 100644
--- a/hbase-common/src/main/resources/hbase-default.xml
+++ b/hbase-common/src/main/resources/hbase-default.xml
@@ -271,13 +271,12 @@ possible configurations would overwhelm and obscure the important.
   </property>
   <property>
     <name>hbase.master.distributed.log.replay</name>
-    <value>true</value>
+    <value>false</value>
     <description>Enable 'distributed log replay' as default engine splitting
-    WAL files on server crash.  This default is new in hbase 1.0.  To fall
-    back to the old mode 'distributed log splitter', set the value to
-    'false'.  'Disributed log replay' improves MTTR because it does not
-    write intermediate files.  'DLR' required that 'hfile.format.version'
-    be set to version 3 or higher. 
+    WAL files on server crash.  Turn this to true to try out this experimental
+    feature, replacing the old mode 'distributed log splitter'.  'Distributed
+    log replay' improves MTTR because it does not write intermediate files.
+    'DLR' required that 'hfile.format.version' be set to version 3 or higher.
     </description>
   </property>
   <property>


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