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[HDFS-7335] Redundant checkOperation() in FSN.analyzeFileState() - HDFS - [issue]
...FSN.analyzeFileState() should not call checkOperation(). It is already properly checked before the call. First time as READ category, second time as WRITE....
http://issues.apache.org/jira/browse/HDFS-7335    Author: Konstantin Shvachko, 2014-11-06, 15:12
[HDFS-7336] Unused member DFSInputStream.buffersize - HDFS - [issue]
...DFSInputStream.buffersize is not used anywhere in the stream....
http://issues.apache.org/jira/browse/HDFS-7336    Author: Konstantin Shvachko, 2014-11-06, 15:12
[HDFS-7330] Unclosed RandomAccessFile warnings in FSDatasetIml. - HDFS - [issue]
...RandomAccessFile is opened as an underline file for FileInputStream. It should be closed when the stream is closed. So to fix these 2 warning (in getBlockInputStream() and getTmpInputStreams...
http://issues.apache.org/jira/browse/HDFS-7330    Author: Konstantin Shvachko, 2014-11-05, 18:50
[HDFS-7263] Snapshot read can reveal future bytes for appended files. - HDFS - [issue]
...The following sequence of steps will produce extra bytes, that should not be visible, because they are not in the snapshot. Create a file of size L, where L % blockSize != 0. Create a snapsh...
http://issues.apache.org/jira/browse/HDFS-7263    Author: Konstantin Shvachko, 2014-10-31, 03:05
[HDFS-6469] Coordinated replication of the namespace using ConsensusNode - HDFS - [issue]
...This is a proposal to introduce ConsensusNode - an evolution of the NameNode, which enables replication of the namespace on multiple nodes of an HDFS cluster by means of a Coordination Engin...
http://issues.apache.org/jira/browse/HDFS-6469    Author: Konstantin Shvachko, 2014-09-04, 03:13
[HDFS-888] TestModTime fails intermittently - HDFS - [issue]
...TestModTime fails pretty often. It creates 2 directories in hdfs dir1 and dir2, and them moves file1 from dir1 to dir2. This should change mod time for dir2, but sometimes it doesn't.I am re...
http://issues.apache.org/jira/browse/HDFS-888    Author: Konstantin Shvachko, 2014-07-29, 23:09
[HDFS-887] TestHDFSServerPorts fails on Windows - HDFS - [issue]
...TestHDFSServerPorts fails becuase it lets two HttpServers start on the same pot. That is two NameNode instances or NameNode and BackupNode can start on the same port. I see failures on my wi...
http://issues.apache.org/jira/browse/HDFS-887    Author: Konstantin Shvachko, 2014-07-29, 23:09
[HDFS-886] TestHDFSTrash fails on Windows - HDFS - [issue]
...TestHDFSTrash fails on Windows because drive letter "C:" is inserted in the path when Trash is trying to move it under ".Trash/current"....
http://issues.apache.org/jira/browse/HDFS-886    Author: Konstantin Shvachko, 2014-07-29, 23:09
[HDFS-272] Update startup scripts to start Checkpoint node instead of SecondaryNameNode - HDFS - [issue]
...Start up script start-dfs.sh should start Checkpoint node instead of SecondaryNameNode.It should provide an option to start Checkpoint or Backup node or secondary.The default should be check...
http://issues.apache.org/jira/browse/HDFS-272    Author: Konstantin Shvachko, 2014-07-24, 19:50
[HDFS-125] Consistency of different replicas of the same block is not checked. - HDFS - [issue]
...HDFS currently detects corrupted replicas by verifying that its contents matches the checksum stored in the block meta-file. This is done independently for each replica of the block on the d...
http://issues.apache.org/jira/browse/HDFS-125    Author: Konstantin Shvachko, 2014-07-23, 23:49
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NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB