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https://issues.apache.org/jira/browse/HBASE-21040?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16577906#comment-16577906
 ] 

Ted Yu edited comment on HBASE-21040 at 8/13/18 4:32 PM:
---------------------------------------------------------

Should be fine.

Can you look at other similar calls in non-test code ?
{code}
hbase-backup/src/main/java/org/apache/hadoop/hbase/backup/RestoreDriver.java:   
   e.printStackTrace();
hbase-client/src/main/java/org/apache/hadoop/hbase/client/ClientAsyncPrefetchScanner.java:
      first.printStackTrace();
hbase-client/src/main/java/org/apache/hadoop/hbase/client/RpcRetryingCallerWithReadReplicas.java:
    t.printStackTrace();
hbase-client/src/main/java/org/apache/hadoop/hbase/filter/ParseFilter.java:     
 e.printStackTrace();
hbase-client/src/main/java/org/apache/hadoop/hbase/filter/ParseFilter.java:     
 e.printStackTrace();
hbase-client/src/main/java/org/apache/hadoop/hbase/filter/ParseFilter.java:     
 e.printStackTrace();
hbase-client/src/main/java/org/apache/hadoop/hbase/filter/ParseFilter.java:     
 e.printStackTrace();
hbase-examples/src/main/java/org/apache/hadoop/hbase/mapreduce/SampleUploader.java:
        e.printStackTrace();
hbase-examples/src/main/java/org/apache/hadoop/hbase/thrift/DemoClient.java:    
        e.printStackTrace();
hbase-examples/src/main/java/org/apache/hadoop/hbase/thrift/HttpDoAsClient.java:
      e.printStackTrace();
hbase-examples/src/main/java/org/apache/hadoop/hbase/thrift/HttpDoAsClient.java:
        e.printStackTrace();
hbase-mapreduce/src/main/java/org/apache/hadoop/hbase/mapred/TableMapReduceUtil.java:
        e.printStackTrace();
hbase-mapreduce/src/main/java/org/apache/hadoop/hbase/mapred/TableMapReduceUtil.java:
      ioe.printStackTrace();
hbase-mapreduce/src/main/java/org/apache/hadoop/hbase/mapred/TableMapReduceUtil.java:
        ie.printStackTrace();
hbase-mapreduce/src/main/java/org/apache/hadoop/hbase/mapreduce/CellCounter.java:
        e.printStackTrace();
hbase-mapreduce/src/main/java/org/apache/hadoop/hbase/mapreduce/CopyTable.java: 
     e.printStackTrace();
hbase-mapreduce/src/main/java/org/apache/hadoop/hbase/mapreduce/HashTable.java: 
     e.printStackTrace();
hbase-mapreduce/src/main/java/org/apache/hadoop/hbase/mapreduce/Import.java:    
    e.printStackTrace();
hbase-mapreduce/src/main/java/org/apache/hadoop/hbase/mapreduce/Import.java:    
    e.printStackTrace();
hbase-mapreduce/src/main/java/org/apache/hadoop/hbase/mapreduce/Import.java:    
    e.printStackTrace();
hbase-mapreduce/src/main/java/org/apache/hadoop/hbase/mapreduce/SyncTable.java: 
     e.printStackTrace();
hbase-mapreduce/src/main/java/org/apache/hadoop/hbase/mapreduce/TsvImporterMapper.java:
      e.printStackTrace();
hbase-mapreduce/src/main/java/org/apache/hadoop/hbase/mapreduce/TsvImporterTextMapper.java:
      e.printStackTrace();
hbase-mapreduce/src/main/java/org/apache/hadoop/hbase/mapreduce/WALPlayer.java: 
       e.printStackTrace();
hbase-mapreduce/src/main/java/org/apache/hadoop/hbase/mapreduce/WALPlayer.java: 
       e.printStackTrace();
hbase-mapreduce/src/main/java/org/apache/hadoop/hbase/mapreduce/replication/VerifyReplication.java:
      e.printStackTrace();
hbase-procedure/src/main/java/org/apache/hadoop/hbase/procedure2/store/wal/ProcedureWALPrettyPrinter.java:
      e.printStackTrace();
hbase-server/src/main/java/org/apache/hadoop/hbase/LocalHBaseCluster.java:      
  e.printStackTrace();
hbase-server/src/main/java/org/apache/hadoop/hbase/LocalHBaseCluster.java:      
  e.printStackTrace();
hbase-server/src/main/java/org/apache/hadoop/hbase/master/HMasterCommandLine.java:
          e.printStackTrace();
hbase-server/src/main/java/org/apache/hadoop/hbase/wal/WALPrettyPrinter.java:   
   e.printStackTrace();
hbase-thrift/src/main/java/org/apache/hadoop/hbase/thrift/ThriftServer.java:    
    ex.printStackTrace();
hbase-zookeeper/src/main/java/org/apache/hadoop/hbase/zookeeper/HQuorumPeer.java:
      e.printStackTrace();
{code}


was (Author: yuzhih...@gmail.com):
Should be fine.

Can you look at similar calls in non-test code ?

> printStackTrace() is used in RestoreDriver in case Exception is caught
> ----------------------------------------------------------------------
>
>                 Key: HBASE-21040
>                 URL: https://issues.apache.org/jira/browse/HBASE-21040
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Ted Yu
>            Priority: Minor
>
> Here is related code:
> {code}
>     } catch (Exception e) {
>       e.printStackTrace();
> {code}
> The correct way of logging stack trace is to use the Logger instance.



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