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Amend HDFS-2948. NN throws NPE during shutdown if it fails to startup

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Previous patch missed the case where the NN fails to start up when it's starting in standby state.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/HDFS-1623@1244813 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Todd Lipcon 2012-02-16 00:58:03 +00:00
parent f7f2ef4447
commit 0663b51ed4
1 changed files with 3 additions and 1 deletions
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4
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/NameNode.java
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@ -995,7 +995,9 @@ public void prepareToStopStandbyServices() throws ServiceFailedException {
@Override
public void stopStandbyServices() throws IOException {
// TODO(HA): Are we guaranteed to be the only active here?
namesystem.stopStandbyServices();
if (namesystem != null) {
namesystem.stopStandbyServices();
}
}
@Override