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[HDFS-4463] ActiveStandbyElector can join election even before Service HEALTHY, and results in null data at ActiveBreadCrumb - HDFS - [issue]
...ActiveStandbyElector can store null at ActiveBreadCrumb in the below race condition. At further all failovers will fail resulting NPE.1. ZKFC restarted.2. due to machine busy, first zk conne...
http://issues.apache.org/jira/browse/HDFS-4463    Author: Vinay, 2013-02-22, 08:36
[HDFS-4445] All BKJM ledgers are not checked while tailing, So failover will fail. - HDFS - [issue]
...After the fix of HDFS-4130, all editlog nodes are not iterated if first edit are below fromTxIdProblem part is below code inside BookKeeperJournalManager#selectInputStreams(..)   &...
http://issues.apache.org/jira/browse/HDFS-4445    Author: Vinay, 2013-02-04, 14:04
[HDFS-3507] DFS#isInSafeMode needs to execute only on Active NameNode - HDFS - [issue]
...Currently DFS#isInSafeMode is not Checking for the NN state. It can be executed on any of the NNs.But HBase will use this API to check for the NN safemode before starting up its service.If f...
http://issues.apache.org/jira/browse/HDFS-3507    Author: Vinay, 2013-01-30, 05:16
[HDFS-4286] Changes from BOOKKEEPER-203 broken capability of including bookkeeper-server jar in hidden package of BKJM - HDFS - [issue]
...BOOKKEEPER-203 introduced changes to LedgerLayout to include ManagerFactoryClass instead of ManagerFactoryName.So because of this, BKJM cannot shade the bookkeeper-server jar inside BKJM jar...
http://issues.apache.org/jira/browse/HDFS-4286    Author: Vinay, 2012-12-07, 10:45
[HDFS-4238] [HA] Standby namenode should not do purging of shared storage edits. - HDFS - [issue]
...This happened in our cluster,>> Standby NN was keep doing checkpoint every one hour and uploading to Active NN was continuously failing due to some kerberos issue and nobody noticed th...
http://issues.apache.org/jira/browse/HDFS-4238    Author: Vinay, 2012-12-05, 23:28
[HDFS-4038] Override toString() for BookKeeperEditLogInputStream - HDFS - [issue]
...Override toString() for BookKeeperEditLogInputStream and also avoid lh.toString() in BookKeeperEditLogInputStream#getName() which will log just hashCode...
http://issues.apache.org/jira/browse/HDFS-4038    Author: Vinay, 2012-11-14, 13:21
[HDFS-3562] Handle disconnect and session timeout events at BKJM - HDFS - [issue]
...Retry zookeeper operations for some amount of time in case of CONNECTIONLOSS/OPERATIONTIMEOUT exceptions. In case of Session expiry trigger shutdown...
http://issues.apache.org/jira/browse/HDFS-3562    Author: Vinay, 2012-10-11, 12:55
[HDFS-3469] start-dfs.sh will start zkfc, but stop-dfs.sh will not stop zkfc similarly. - HDFS - [issue]
...start-dfs.sh will start the zkfc process. Similarly stop-dfs.sh should stop zkfc process....
http://issues.apache.org/jira/browse/HDFS-3469    Author: Vinay, 2012-09-03, 15:00
[HDFS-3765] Namenode INITIALIZESHAREDEDITS should be able to initialize all shared storages - HDFS - [issue]
...Currently, NameNode INITIALIZESHAREDEDITS provides ability to copy the edits files to file schema based shared storages when moving cluster from Non-HA environment to HA enabled environment....
http://issues.apache.org/jira/browse/HDFS-3765    Author: Vinay, 2012-08-16, 00:20
[HDFS-3734] TestFSEditLogLoader.testReplicationAdjusted() will hang if number of blocks are more than one - HDFS - [issue]
...TestFSEditLogLoader.testReplicationAdjusted() which was added in HDFS-2003 will fail if number of blocks before cluster restart are more than one.Test Scenario:--------------1. Write a file ...
http://issues.apache.org/jira/browse/HDFS-3734    Author: Vinay, 2012-08-09, 09:00
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