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[HDFS-4588] DFSTestUtil.appendFile() should close the output stream on completion. - HDFS - [issue]
...DFSTestUtil.appendFile() opens an output stream to write to a file but never closes it.This was fixed for DFSTestUtil.createFile() on trunk by HDFS-3995. The same should be done for appendFi...
http://issues.apache.org/jira/browse/HDFS-4588    Author: Konstantin Shvachko, 2013-04-11, 23:53
[HDFS-898] Sequential generation of block ids - HDFS - [issue]
...This is a proposal to replace random generation of block ids with a sequential generator in order to avoid block id reuse in the future....
http://issues.apache.org/jira/browse/HDFS-898    Author: Konstantin Shvachko, 2013-03-28, 17:16
Re: For a new installation: use the BackupNode or the CheckPointNode? - HDFS - [mail # user]
...There is no BackupNode in Hadoop 1. That was a bug in documentation.  Here is the updated link: http://hadoop.apache.org/docs/r1.1.2/hdfs_user_guide.html  Thanks,  On Sat, Mar...
   Author: Konstantin Shvachko, 2013-03-26, 22:06
[HDFS-4391] TestDataTransferKeepalive fails when tests are executed in a certain order. - HDFS - [issue]
...TestDataTransferKeepalive if testKeepaliveTimeouts() is executed AFTER testManyClosedSocketsInCache()....
http://issues.apache.org/jira/browse/HDFS-4391    Author: Konstantin Shvachko, 2013-03-12, 14:04
Re: [Vote] Merge branch-trunk-win to trunk - HDFS - [mail # dev]
...Suresh, this might be a confusing statement as your patch includes only Yarn changes. Could you please update it.  Thanks,  On Wed, Feb 27, 2013 at 6:17 PM, Suresh Srinivas  w...
   Author: Konstantin Shvachko, 2013-03-01, 19:24
[HDFS-4268] Remove redundant enum NNHAStatusHeartbeat.State - HDFS - [issue]
...NNHAStatusHeartbeat.State is redundant and can be replaced with commonly used enum HAServiceState.We should also consistently use HAServiceState to check if the state is ACTIVE or STANDBY ra...
http://issues.apache.org/jira/browse/HDFS-4268    Author: Konstantin Shvachko, 2013-02-15, 05:06
[HDFS-2452] OutOfMemoryError in DataXceiverServer takes down the DataNode - HDFS - [issue]
...OutOfMemoryError brings down DataNode, when DataXceiverServer tries to spawn a new data transfer thread....
http://issues.apache.org/jira/browse/HDFS-2452    Author: Konstantin Shvachko, 2013-02-06, 21:46
[HDFS-4452] getAdditionalBlock() can create multiple blocks if the client times out and retries. - HDFS - [issue]
...HDFS client tries to addBlock() to a file. If NameNode is busy the client can timeout and will reissue the same request again. The two requests will race with each other in FSNamesystem.getA...
http://issues.apache.org/jira/browse/HDFS-4452    Author: Konstantin Shvachko, 2013-02-02, 14:04
[HDFS-4349] Test reading files from BackupNode - HDFS - [issue]
...Add a test that ensures files are readable both from NameNode and BackupNode....
http://issues.apache.org/jira/browse/HDFS-4349    Author: Konstantin Shvachko, 2013-01-01, 14:05
[HDFS-4347] TestBackupNode can go into infinite loop "Waiting checkpoint to complete." - HDFS - [issue]
...waitCheckpointDone() can loop forever if txid to wait for is calculated after startBackupNode()....
http://issues.apache.org/jira/browse/HDFS-4347    Author: Konstantin Shvachko, 2012-12-29, 14:05
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