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[HDFS-8313] Erasure Coding: DFSStripedOutputStream#close throws NullPointerException exception in some cases - HDFS - [issue]
...java.io.IOException: java.lang.NullPointerException at org.apache.hadoop.hdfs.DataStreamer$LastException.check(DataStreamer.java:193) at org.apache.hadoop.hdfs.DFSStripedOutputStream.closeIm...
http://issues.apache.org/jira/browse/HDFS-8313    Author: Yi Liu, 2015-05-04, 03:46
[HDFS-6885] Fix wrong use of BytesWritable in FSEditLogOp#RenameOp - HDFS - [issue]
...After readField using BytesWritable, the data length should be writable.getLength(), instead of writable.getBytes().length which is the buffer length. This will cause returned Rename[] is lo...
http://issues.apache.org/jira/browse/HDFS-6885    Author: Yi Liu, 2015-05-03, 23:16
[HDFS-6782] Improve FS editlog logSync - HDFS - [issue]
...In NN, it uses a double buffer (bufCurrent, bufReady) for log sync, bufCurrent it to buffer new coming edit ops and bufReady is for flushing. This's efficient. When flush is ongoing, and buf...
http://issues.apache.org/jira/browse/HDFS-6782    Author: Yi Liu, 2015-05-03, 16:33
[HDFS-8223] Should calculate checksum for parity blocks in DFSStripedOutputStream - HDFS - [issue]
...DFSPacket p = createPacket(packetSize, chunksPerPacket,          streamer.getBytesCurBlock(),          streamer.getAndIncCurrentSe...
http://issues.apache.org/jira/browse/HDFS-8223    Author: Yi Liu, 2015-04-24, 07:51
[HDFS-8203] Erasure Coding: Seek and other Ops in DFSStripedInputStream. - HDFS - [issue]
...In HDFS-7782 and HDFS-8033, we handle pread and stateful read for DFSStripedInputStream, we also need handle other operations, such as seek, zerocopy read ......
http://issues.apache.org/jira/browse/HDFS-8203    Author: Yi Liu, 2015-04-23, 08:30
[HDFS-8059] Erasure coding: move dataBlockNum and parityBlockNum from BlockInfoStriped to INodeFile - HDFS - [issue]
...Move dataBlockNum and parityBlockNum from BlockInfoStriped to INodeFile, and store them in FileWithStripedBlocksFeature.Ideally these two nums are the same for all striped blocks in a file, ...
http://issues.apache.org/jira/browse/HDFS-8059    Author: Yi Liu, 2015-04-17, 21:15
[HDFS-7886] TestFileTruncate#testTruncateWithDataNodesRestart runs timeout sometimes - HDFS - [issue]
...https://builds.apache.org/job/PreCommit-HDFS-Build/9730//testReport/...
http://issues.apache.org/jira/browse/HDFS-7886    Author: Yi Liu, 2015-04-10, 21:30
[HDFS-7761] cleanup unnecssary code logic in LocatedBlock - HDFS - [issue]
...The usage of following two variables is unnecessary. We can remove them to make code a bit brief.private final boolean hasStorageIDs;private final boolean hasStorageTypes; In HDFS-7647, no n...
http://issues.apache.org/jira/browse/HDFS-7761    Author: Yi Liu, 2015-04-10, 21:30
[HDFS-8087] Erasure Coding: Add more EC zone management APIs (get/list EC zone(s)) - HDFS - [issue]
http://issues.apache.org/jira/browse/HDFS-8087    Author: Yi Liu, 2015-04-08, 02:36
[HDFS-8065] Erasure coding: Support truncate at striped group boundary. - HDFS - [issue]
...We can support truncate at striped group boundary firstly....
http://issues.apache.org/jira/browse/HDFS-8065    Author: Yi Liu, 2015-04-07, 20:49
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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