surendra singh lilhore created HDFS-3381: --------------------------------------------
Summary: BK JM : After restart bookkeeper continuously throwing error beause 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. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira