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Colin Patrick McCabe
Tsz Wo Nicholas Sze
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[HDFS-5112] NetWorkTopology#countNumOfAvailableNodes() is returning wrong value if excluded nodes passed are not part of the cluster tree
...I got "File /hdfs_COPYING_ could only be replicated to 0 nodes instead of minReplication (=1). There are 1 datanode(s) running and 1 node(s) are excluded in this operation." in the fol...
, 2013-08-20, 19:28
[HDFS-4855] DFSOutputStream reference should be cleared from DFSClient#filesBeingWritten if the file closure fails.
...If the file closure fails due to some exception, then DFSOutputStream reference should be removed from the DFSClient#filesBeingWritten.Which is useless to keep and also memory consuming.If t...
, 2013-06-01, 00:08
[HDFS-4463] ActiveStandbyElector can join election even before Service HEALTHY, and results in null data at ActiveBreadCrumb
...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...
, 2013-02-22, 08:36
[HDFS-4445] All BKJM ledgers are not checked while tailing, So failover will fail.
...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(..) ...
, 2013-02-04, 14:04
[HDFS-4238] [HA] Standby namenode should not do purging of shared storage edits.
...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...
, 2012-12-05, 23:28
[HDFS-4038] Override toString() for BookKeeperEditLogInputStream
...Override toString() for BookKeeperEditLogInputStream and also avoid lh.toString() in BookKeeperEditLogInputStream#getName() which will log just hashCode...
, 2012-11-14, 13:21
[HDFS-3734] TestFSEditLogLoader.testReplicationAdjusted() will hang if number of blocks are more than one
...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 ...
, 2012-08-09, 09:00
[HDFS-3547] Handle disconnect and session timeout events at BKJM
...Retry zookeeper operations for some amount of time in case of CONNECTIONLOSS/OPERATIONTIMEOUT exceptions. In case of Session expiry trigger shutdown...
, 2012-06-20, 17:55
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