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From "surendra singh lilhore (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-3381) BK JM : After restart bookkeeper continuously throwing error because BK JM create all Namenode related znode under '/ledger' znode.
Date Tue, 08 May 2012 06:14:00 GMT

     [ https://issues.apache.org/jira/browse/HDFS-3381?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

surendra singh lilhore updated HDFS-3381:
-----------------------------------------

    Summary: BK JM : After restart bookkeeper continuously throwing error because BK JM create
all Namenode related znode under '/ledger' znode.  (was: BK JM : After restart bookkeeper
continuously throwing error beause BK JM create all Namenode related znode under /ledger znode.)
    
> BK JM : After restart bookkeeper continuously throwing error because BK JM create all
Namenode related znode under '/ledger' znode.
> -----------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-3381
>                 URL: https://issues.apache.org/jira/browse/HDFS-3381
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: ha
>            Reporter: surendra singh lilhore
>             Fix For: 0.24.0
>
>
> Issue :
> Bookkeeper journal manager create all the Namenode related znode under '/ledgers' znode
in zookeeper. When bookkeeper read all the ledgers from  '/ledgers' znode it consider this
znode (version, lock, maxtxid)  as incorrect format ledger and log following error.
> {noformat}
> 2012-04-20 11:52:25,611 - WARN  [main-EventThread:AbstractZkLedgerManager$2@123] - Error
extracting ledgerId from ZK ledger node: ledgers
> 2012-04-20 11:52:25,611 - WARN  [main-EventThread:AbstractZkLedgerManager$2@123] - Error
extracting ledgerId from ZK ledger node: lock
> 2012-04-20 11:52:25,612 - WARN  [main-EventThread:AbstractZkLedgerManager$2@123] - Error
extracting ledgerId from ZK ledger node: maxtxid
> 2012-04-20 11:52:26,613 - WARN  [main-EventThread:AbstractZkLedgerManager$2@123] - Error
extracting ledgerId from ZK ledger node: version
> 2012-04-20 11:52:26,613 - WARN  [main-EventThread:AbstractZkLedgerManager$2@123] - Error
extracting ledgerId from ZK ledger node: ledgers
> 2012-04-20 11:52:26,613 - WARN  [main-EventThread:AbstractZkLedgerManager$2@123] - Error
extracting ledgerId from ZK ledger node: lock
> 2012-04-20 11:52:26,613 - WARN  [main-EventThread:AbstractZkLedgerManager$2@123] - Error
extracting ledgerId from ZK ledger node: maxtxid
> 2012-04-20 11:52:27,614 - WARN  [main-EventThread:AbstractZkLedgerManager$2@123] - Error
extracting ledgerId from ZK ledger node: version
> 2012-04-20 11:52:27,614 - WARN  [main-EventThread:AbstractZkLedgerManager$2@123] - Error
extracting ledgerId from ZK ledger node: ledgers
> 2012-04-20 11:52:27,614 - WARN  [main-EventThread:AbstractZkLedgerManager$2@123] - Error
extracting ledgerId from ZK ledger node: lock
> 2012-04-20 11:52:27,615 - WARN  [main-EventThread:AbstractZkLedgerManager$2@123] - Error
extracting ledgerId from ZK ledger node: maxtxid
> 2012-04-20 11:52:28,616 - WARN  [main-EventThread:AbstractZkLedgerManager$2@123] - Error
extracting ledgerId from ZK ledger node: version
> 2012-04-20 11:52:28,616 - WARN  [main-EventThread:AbstractZkLedgerManager$2@123] - Error
extracting ledgerId from ZK ledger node: ledgers
> {noformat}
> I think Namenode related znode should be create in separate znode in zookeeper.

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