joshelser commented on a change in pull request #2191:
URL: https://github.com/apache/hbase/pull/2191#discussion_r469395639



##########
File path: 
hbase-server/src/main/java/org/apache/hadoop/hbase/replication/regionserver/ReplicationSourceWALReader.java
##########
@@ -309,6 +310,16 @@ public WALEntryBatch poll(long timeout) throws 
InterruptedException {
     return entryBatchQueue.poll(timeout, TimeUnit.MILLISECONDS);
   }
 
+  public void clearWALEntryBatch() {

Review comment:
       > after we certify that neither the shipper, nor the reader threads are 
alive anymore, so I don't think it would be an issue. Of course, there's the 
risk someone inadvertently call this method somewhere else, so maybe we should 
put a warning comment?
   
   Also OK to just put a warning if moving this check doesn't make things more 
clear :). Thanks for clarifying for me.




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