Apache
/
hadoop
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

HDFS-14523. Remove excess read lock for NetworkToplogy. Contributed by Wu Weiwei. 

Signed-off-by: Wei-Chiu Chuang <weichiu@apache.org>
Reviewed-by: Chen Liang <cliang@apache.org>
This commit is contained in:
Wei-Chiu Chuang 2019-08-16 17:19:13 -07:00
parent a46ba03d15
commit 971a4c8e83
1 changed files with 2 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/net/NetworkTopology.java
View File

@ -295,22 +295,12 @@ public class NetworkTopology {
/** @return the total number of racks */ /** @return the total number of racks */
public int getNumOfRacks() { public int getNumOfRacks() {
netlock.readLock().lock();
try {
return numOfRacks; return numOfRacks;
} finally {
netlock.readLock().unlock();
}
} }
/** @return the total number of leaf nodes */ /** @return the total number of leaf nodes */
public int getNumOfLeaves() { public int getNumOfLeaves() {
netlock.readLock().lock();
try {
return clusterMap.getNumOfLeaves(); return clusterMap.getNumOfLeaves();
} finally {
netlock.readLock().unlock();
}
} }
/** Return the distance between two nodes /** Return the distance between two nodes