ivankelly commented on a change in pull request #1218: Support LacPiggyback,
LongPoll and ExplicitLac in db ledger storage
URL: https://github.com/apache/bookkeeper/pull/1218#discussion_r171274815
##########
File path:
bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/storage/ldb/DbLedgerStorage.java
##########
@@ -74,10 +83,121 @@
*/
public class DbLedgerStorage implements CompactableLedgerStorage {
+ /**
+ * This class borrows the logic from FileInfo.
+ *
+ * <p>This class is used for holding all the transient states for a given
ledger.
+ */
+ private static class TransientLedgerInfo
+ extends Watchable<LastAddConfirmedUpdateNotification>
+ implements AutoCloseable {
+
+ // lac
+ private Long lac = null;
Review comment:
null only has a different meaning because you're loading uninitialized
entries into the cache. I'd do it differently, but won't block on this.
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