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Posted to common-commits@hadoop.apache.org by sh...@apache.org on 2008/12/19 02:59:53 UTC
svn commit: r727890 - in /hadoop/core/branches/branch-0.18: CHANGES.txt
src/hdfs/org/apache/hadoop/dfs/FSNamesystem.java
Author: shv
Date: Thu Dec 18 17:59:53 2008
New Revision: 727890
URL: http://svn.apache.org/viewvc?rev=727890&view=rev
Log:
HADOOP-4904. Merge -r 727873:727874 from trunk to branch 0.18.
Modified:
hadoop/core/branches/branch-0.18/CHANGES.txt
hadoop/core/branches/branch-0.18/src/hdfs/org/apache/hadoop/dfs/FSNamesystem.java
Modified: hadoop/core/branches/branch-0.18/CHANGES.txt
URL: http://svn.apache.org/viewvc/hadoop/core/branches/branch-0.18/CHANGES.txt?rev=727890&r1=727889&r2=727890&view=diff
==============================================================================
--- hadoop/core/branches/branch-0.18/CHANGES.txt (original)
+++ hadoop/core/branches/branch-0.18/CHANGES.txt Thu Dec 18 17:59:53 2008
@@ -113,6 +113,8 @@
HADOOP-4840. TestNodeCount sometimes fails with NullPointerException.
(hairong)
+ HADOOP-4904. Fix deadlock while leaving safe mode. (shv)
+
Release 0.18.2 - 2008-11-03
BUG FIXES
Modified: hadoop/core/branches/branch-0.18/src/hdfs/org/apache/hadoop/dfs/FSNamesystem.java
URL: http://svn.apache.org/viewvc/hadoop/core/branches/branch-0.18/src/hdfs/org/apache/hadoop/dfs/FSNamesystem.java?rev=727890&r1=727889&r2=727890&view=diff
==============================================================================
--- hadoop/core/branches/branch-0.18/src/hdfs/org/apache/hadoop/dfs/FSNamesystem.java (original)
+++ hadoop/core/branches/branch-0.18/src/hdfs/org/apache/hadoop/dfs/FSNamesystem.java Thu Dec 18 17:59:53 2008
@@ -3998,8 +3998,13 @@
}
}
// leave safe mode and stop the monitor
- if(safeMode != null)
- safeMode.leave(true);
+ try {
+ leaveSafeMode(true);
+ } catch(SafeModeException es) { // should never happen
+ String msg = "SafeModeMonitor may not run during distributed upgrade.";
+ assert false : msg;
+ throw new RuntimeException(msg, es);
+ }
smmthread = null;
}
}
@@ -4088,7 +4093,7 @@
* Leave safe mode.
* @throws IOException
*/
- synchronized void leaveSafeMode(boolean checkForUpgrades) throws IOException {
+ synchronized void leaveSafeMode(boolean checkForUpgrades) throws SafeModeException {
if (!isInSafeMode()) {
NameNode.stateChangeLog.info("STATE* Safe mode is already OFF.");
return;