hemantk-12 commented on code in PR #5070:
URL: https://github.com/apache/ozone/pull/5070#discussion_r1264230191


##########
hadoop-hdds/rocksdb-checkpoint-differ/src/main/java/org/apache/ozone/rocksdiff/RocksDBCheckpointDiffer.java:
##########
@@ -588,6 +590,8 @@ public void onCompactionCompleted(RocksDB db,
             return;
           }
 
+          waitForTarballCreation();

Review Comment:
   Just transaction seq number in log doesn't solve the problem. I tired to 
explain it here: 
[8db58df](https://github.com/apache/ozone/commit/8db58df12318108b2d4e3cf8dc9bfeaccc4fadbe#diff-1d5c6c892a2d24d85ca002dafcb9f39341192baaa7b5323d2325b5fc7a238c7f)
    and wrote a [coding using 
ThreadLocal](https://github.com/apache/ozone/commit/8db58df12318108b2d4e3cf8dc9bfeaccc4fadbe#diff-1d5c6c892a2d24d85ca002dafcb9f39341192baaa7b5323d2325b5fc7a238c7fR500)
    
   But problem with above is that assumption that CompactionBeginListener and 
CompactionCompletedListener are running on a same thread is wrong itself.



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