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HDFS-5681. renewLease should not hold fsn write lock. Contributed by Daryn Sharp. 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1552711 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Kihwal Lee 2013-12-20 16:05:03 +00:00
parent 7730629164
commit 04d139e2a0
2 changed files with 4 additions and 2 deletions
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2
hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
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@ -770,6 +770,8 @@ Release 2.4.0 - UNRELEASED
HDFS-5341. Reduce fsdataset lock duration during directory scanning.
(Qus-Jiawei via kihwal)
HDFS-5681. renewLease should not hold fsn write lock. (daryn via Kihwal)
BUG FIXES
HDFS-5034. Remove debug prints from GetFileLinkInfo (Andrew Wang via Colin

4
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
View File

@ -3999,13 +3999,13 @@ public class FSNamesystem implements Namesystem, FSClusterStats,
*/
void renewLease(String holder) throws IOException {
checkOperation(OperationCategory.WRITE);
writeLock();
readLock();
try {
checkOperation(OperationCategory.WRITE);
checkNameNodeSafeMode("Cannot renew lease for " + holder);
leaseManager.renewLease(holder);
} finally {
writeUnlock();
readUnlock();
}
}