functioner commented on pull request #2737:
URL: https://github.com/apache/hadoop/pull/2737#issuecomment-806219473


   Thanks @Hexiaoqiao for your review. I have added the multi-threaded executor 
for it.
   
   For the exception handling part, I observe the original semantics of 
`RpcEdit`
   
https://github.com/apache/hadoop/blob/aaedc51d8783c2808563d5c8b51b68ab79e19820/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSEditLogAsync.java#L379-L387
   and `SyncEdit`
   
https://github.com/apache/hadoop/blob/aaedc51d8783c2808563d5c8b51b68ab79e19820/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSEditLogAsync.java#L347-L353
   Therefore, we don't need to add any extra handling mechanism.
   
   I have checked the test of `TestEditLogRace` and `TestEditLog` in my local 
machine. It passes all the tests. Let's see if there are other tests that fail.


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