ivankelly commented on a change in pull request #1225: Issue #570: getting rid 
of unnecessary synchrnoization in InterleavedLedgerStorage
URL: https://github.com/apache/bookkeeper/pull/1225#discussion_r171811434
 
 

 ##########
 File path: 
bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/InterleavedLedgerStorage.java
 ##########
 @@ -360,10 +362,10 @@ public void checkpoint(Checkpoint checkpoint) throws 
IOException {
 
     @Override
     public synchronized void flush() throws IOException {
-        if (!somethingWritten) {
+        if (!somethingWritten.get()) {
 
 Review comment:
   Use a compareAndSet here. 
   
   Do we need synchronization on the flush method at all?

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