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[HDFS-9773] Remove dead code related to SimulatedFSDataset in tests - HDFS - [issue]
...There are some dead code  final boolean simulatedStorage = false;  if (simulatedStorage) {    SimulatedFSDataset.setFactory(conf);  }in TestShortCircuitLocalRead, Te...
http://issues.apache.org/jira/browse/HDFS-9773    Author: Akira AJISAKA, 2016-02-06, 21:07
[HDFS-9752] Permanent write failures may happen to slow writers during datanode rolling upgrades - HDFS - [issue]
...When datanodes are being upgraded, an out-of-band ack is sent upstream and the client does a pipeline recovery. The client may hit this multiple times as more nodes get upgraded.  This ...
http://issues.apache.org/jira/browse/HDFS-9752    Author: Kihwal Lee, 2016-02-06, 20:05
[HDFS-9600] do not check replication if the block is under construction - HDFS - [issue]
...When appending a file, we will update pipeline to bump a new GS and the old GS will be considered as out of date. When changing GS, in BlockInfo.setGenerationStampAndVerifyReplicas we will r...
http://issues.apache.org/jira/browse/HDFS-9600    Author: Phil Yang, 2016-02-06, 18:38
[HDFS-9637] Add test for HADOOP-12702, HADOOP-12759, and HADOOP-12775 - HDFS - [issue]
...Per discussion on the dev list, the tests for the new FileSystemSink class should be added to the HDFS project to avoid creating a dependency for the common project on the HDFS project....
http://issues.apache.org/jira/browse/HDFS-9637    Author: Daniel Templeton, 2016-02-06, 16:13
[HDFS-9686] Remove useless boxing/unboxing code - HDFS - [issue]
...There are lots of places where useless boxing/unboxing occur.To avoid performance issue, let's remove them....
http://issues.apache.org/jira/browse/HDFS-9686    Author: Kousuke Saruta, 2016-02-06, 10:46
[HDFS-9772] TestBlockReplacement#testThrottler use falut variable to calculate bandwidth - HDFS - [issue]
...In TestBlockReplacement#testThrottler, it use a fault variable to calculate the ended bandwidth. It use variable totalBytes rathe than final variable TOTAL_BYTES. And the value of TOTAL_BYTE...
http://issues.apache.org/jira/browse/HDFS-9772    Author: Lin Yiqun, 2016-02-06, 09:34
[HDFS-9768] Reuse objectMapper instance in HDFS to improve the performance - HDFS - [issue]
...In HDFS-9724, it have reused the ObjectMapper instance to improve the performance in WebHDFS. But in other places, it still using ObjectMapper by new ObjectMapper(). We probably need a compr...
http://issues.apache.org/jira/browse/HDFS-9768    Author: Lin Yiqun, 2016-02-06, 09:18
[HDFS-9671] DiskBalancer : SubmitPlan implementation - HDFS - [issue]
...Datanode side code for submit plan for diskbalancer....
http://issues.apache.org/jira/browse/HDFS-9671    Author: Anu Engineer, 2016-02-06, 02:54
[HDFS-9395] HDFS operations vary widely in which failures they put in the audit log and which they leave out - HDFS - [issue]
...So, the big question here is what should go in the audit log? All failures, or just "permission denied" failures? Or, to put it a different way, if someone attempts to do something and it fa...
http://issues.apache.org/jira/browse/HDFS-9395    Author: Kihwal Lee, 2016-02-06, 02:53
[HDFS-8789] Block Placement policy migrator - HDFS - [issue]
...As we start to add new block placement policies to HDFS, it will be necessary to have a robust tool that can migrate HDFS blocks between placement policies. This jira is for the design and i...
http://issues.apache.org/jira/browse/HDFS-8789    Author: Chris Trezzo, 2016-02-06, 01:36
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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