sijie commented on a change in pull request #1140: Issue 1139: Add debug to 
replication fencing
URL: https://github.com/apache/bookkeeper/pull/1140#discussion_r168245303
 
 

 ##########
 File path: 
bookkeeper-server/src/main/java/org/apache/bookkeeper/replication/ReplicationWorker.java
 ##########
 @@ -364,40 +368,52 @@ private void deferLedgerLockRelease(final long ledgerId) 
{
         TimerTask timerTask = new TimerTask() {
             @Override
             public void run() {
+                boolean isRecoveryOpen = false;
                 LedgerHandle lh = null;
                 try {
                     lh = admin.openLedgerNoRecovery(ledgerId);
                     if (isLastSegmentOpenAndMissingBookies(lh)) {
+                        // Need recovery open, close the old ledger handle.
+                        lh.close();
+                        // Recovery open could result in client write failure.
+                        LOG.warn("Missing bookie(s) from last segment. Opening 
Ledger{} for Recovery.", ledgerId);
                         lh = admin.openLedger(ledgerId);
+                        isRecoveryOpen = true;
                     }
-
-                    Set<LedgerFragment> fragments = 
getUnderreplicatedFragments(lh);
-                    for (LedgerFragment fragment : fragments) {
-                        if (!fragment.isClosed()) {
-                            lh = admin.openLedger(ledgerId);
-                            break;
+                    if (!isRecoveryOpen){
 
 Review comment:
   @jvrao I see.
   
   to make things a bit clear here, it might be good to move line 384 to 395 to 
a function call "hasOpenUnderreplicatedFragements(LedgerHandle lh)`.
   
   and change the if else here to be:
   
   ```
   if (isLastSegmentOpenAndMissingBookies(lh) || 
hasOpenUnderreplicatedFragments(lh)) {
         lh.close();
         lh = admin.openLedger(ledgerId);
         isRecoveryOpen = true;
   }
   ```
   
   not a blocker though.

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