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HDFS-15919. BlockPoolManager should log stack trace if unable to get Namenode addresses. Contributed by Stephen O'Donnell.

He Xiaoqiao 4 years ago
parent
654555783d
commit
ed5814deff
1 changed files with 1 additions and 1 deletions
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      hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/BlockPoolManager.java

+ 1 - 1
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/BlockPoolManager.java
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@@ -158,7 +158,7 @@ class BlockPoolManager {
 
       newLifelineAddressMap =
 
           DFSUtil.getNNLifelineRpcAddressesForCluster(conf);
 
     } catch (IOException ioe) {
 
-      LOG.warn("Unable to get NameNode addresses.");
 
+      LOG.warn("Unable to get NameNode addresses.", ioe);
 
     }
 
 
     if (newAddressMap == null || newAddressMap.isEmpty()) {