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Posted to dev@bookkeeper.apache.org by "Flavio Junqueira (JIRA)" <ji...@apache.org> on 2011/09/16 16:30:09 UTC
[jira] [Assigned] (BOOKKEEPER-39) Bookie server failed to restart
because of too many ledgers (more than ~50,000 ledgers)
[ https://issues.apache.org/jira/browse/BOOKKEEPER-39?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Flavio Junqueira reassigned BOOKKEEPER-39:
------------------------------------------
Assignee: Sijie Guo
> Bookie server failed to restart because of too many ledgers (more than ~50,000 ledgers)
> ---------------------------------------------------------------------------------------
>
> Key: BOOKKEEPER-39
> URL: https://issues.apache.org/jira/browse/BOOKKEEPER-39
> Project: Bookkeeper
> Issue Type: Bug
> Components: bookkeeper-server
> Affects Versions: 3.4.0
> Reporter: Sijie Guo
> Assignee: Sijie Guo
> Attachments: bookkeeper-39.patch
>
>
> If we have ~500,000 topics in hedwig, we might have more than ~500,000 ledgers in bookkeeper (a topic has more than 1 ledger). So when the bookie server restarted, a logfile GC thread is started, which will call zk.getChildren to fetch all ledgers, and it failed because of package length limitation.
> 2011-08-01 01:18:46,373 - ERROR [main-EventThread:EntryLogger$GarbageCollectorThread$1@164] - Error polling ZK for the available ledger nodes:
> org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode = ConnectionLoss for /ledgers
> at org.apache.zookeeper.KeeperException.create(KeeperException.java:99)
> at org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
> at org.apache.zookeeper.ZooKeeper.getChildren(ZooKeeper.java:1519)
> at org.apache.bookkeeper.bookie.EntryLogger$GarbageCollectorThread$1.processResult(EntryLogger.java:162)
> at org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:592)
> at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:481)
> 2011-08-01 01:18:46,373 - WARN [main-EventThread:Bookie$1@242] - ZK client has been disconnected to the ZK server!
> 2011-08-01 01:18:47,278 - WARN [main-SendThread(perf13.platform.mobile.sp2.yahoo.com:2181):ClientCnxn$SendThread@980] - Session 0x131833dec850034 for server perf13.platform.mobile.sp2.yahoo.com/98.139.43.86:2181, unexpected error, closing socket connection and attempting reconnect
> java.io.IOException: Packet len9976413 is out of range!
> at org.apache.zookeeper.ClientCnxnSocket.readLength(ClientCnxnSocket.java:112)
> at org.apache.zookeeper.ClientCnxnSocketNIO.doIO(ClientCnxnSocketNIO.java:78)
> at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:264)
> at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:958)
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