[GitHub] [bookkeeper] hangc0276 commented on a diff in pull request #3339: [improve] decommissionBookie waiting for ledgers to be replicated back off policy

[GitBox <gi...@apache.org>]

hangc0276 commented on code in PR #3339:
URL: https://github.com/apache/bookkeeper/pull/3339#discussion_r929505521


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bookkeeper-server/src/main/java/org/apache/bookkeeper/client/BookKeeperAdmin.java:
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@@ -1622,13 +1622,33 @@ private void waitForLedgersToBeReplicated(Collection<Long> ledgers, BookieId thi
             LedgerManager ledgerManager) throws InterruptedException, TimeoutException {
         int maxSleepTimeInBetweenChecks = 10 * 60 * 1000; // 10 minutes
         int sleepTimePerLedger = 10 * 1000; // 10 secs
+        int rereplicateBackoffMs = 10 * 1000; // 10 secs
+        int backOffCount = 0;
         Predicate<Long> validateBookieIsNotPartOfEnsemble = ledgerId -> !areEntriesOfLedgerStoredInTheBookie(ledgerId,
                 thisBookieAddress, ledgerManager);
         while (!ledgers.isEmpty()) {
             LOG.info("Count of Ledgers which need to be rereplicated: {}", ledgers.size());
             int sleepTimeForThisCheck = (long) ledgers.size() * sleepTimePerLedger > maxSleepTimeInBetweenChecks
                     ? maxSleepTimeInBetweenChecks : ledgers.size() * sleepTimePerLedger;
-            Thread.sleep(sleepTimeForThisCheck);
+            long nextValidateTime = System.currentTimeMillis() + sleepTimeForThisCheck;

Review Comment:
   Could you use a backoff policy to simplify the code?  You can refer to: https://github.com/apache/pulsar/blob/master/pulsar-client/src/main/java/org/apache/pulsar/client/impl/Backoff.java



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