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[HDFS-8230] Erasure Coding: Ignore DatanodeProtocol#DNA_ERASURE_CODING_RECOVERY commands from standbynode if any - HDFS - [issue]
...Let's ignore DNA_ERASURE_CODING_RECOVERY command at DN if its coming from standby namenode. Ideally we should not get this commands from standby node. Since we handle to ignore the commands ...
http://issues.apache.org/jira/browse/HDFS-8230    Author: Uma Maheswara Rao G, 2015-04-24, 10:42
[HDFS-8189] ClientProtocol#createErasureCodingZone API was wrongly annotated as Idempotent - HDFS - [issue]
...Currently createErasureCodingZone was annotated as IdempotentBut it should be annotated as @AtMostOnce as we handle retries via retryCache. @Idempotent  public void createEras...
http://issues.apache.org/jira/browse/HDFS-8189    Author: Uma Maheswara Rao G, 2015-04-24, 10:34
[HDFS-8129] Maintain consistent naming for Erasure Coding related classes - EC/ErasureCode - HDFS - [issue]
...Currently I see some classes named as ErasureCode* and some are with EC*I feel we should maintain consistent naming across project. This jira to correct the places where we named differently...
http://issues.apache.org/jira/browse/HDFS-8129    Author: Uma Maheswara Rao G, 2015-04-21, 23:47
[HDFS-8181] createErasureCodingZone sets retryCache state as false always - HDFS - [issue]
...Currently createErasureCodingZone sets the RetryCache state as false always. Once the operation success it should pass true....
http://issues.apache.org/jira/browse/HDFS-8181    Author: Uma Maheswara Rao G, 2015-04-20, 10:36
[HDFS-8146] Protobuf changes for BlockECRecoveryCommand and its fields for making it ready for transfer to DN - HDFS - [issue]
...As part of working on HDFS-8137, we need to prepare BlockECRecoveryCommand, BlockECRecoveryInfo, DatanodeStorageInfo, DatanodeDescripter (We can use DatanodeInfo for proto trasfer)  sho...
http://issues.apache.org/jira/browse/HDFS-8146    Author: Uma Maheswara Rao G, 2015-04-18, 18:53
[HDFS-8130] Erasure Coding: DN should report its CPU cores and other info to NN for better EC task assignments - HDFS - [issue]
...DataNode should report CPU cores and other information to Namenode. NN can utilize this info for making better EC task assignment decisions....
http://issues.apache.org/jira/browse/HDFS-8130    Author: Uma Maheswara Rao G, 2015-04-12, 18:31
[HDFS-7350] WebHDFS: Support EC commands through webhdfs - HDFS - [issue]
http://issues.apache.org/jira/browse/HDFS-7350    Author: Uma Maheswara Rao G, 2015-03-25, 12:53
[HDFS-4516] Client crash after block allocation and NN switch before lease recovery for the same file can cause readers to fail forever - HDFS - [issue]
...If client crashes just after allocating block( blocks not yet created in DNs) and NN also switched after this, then new Namenode will not know about locs.Further details will be in comment....
http://issues.apache.org/jira/browse/HDFS-4516    Author: Uma Maheswara Rao G, 2015-03-13, 02:57
[HDFS-2712] setTimes should support only for files and move the atime field down to iNodeFile. - HDFS - [issue]
...After the dicussion in HDFS-2436, unsupported behaviour for setTimes was intentional (HADOOP-1869).But current INode structure hierarchy seems, it supports atime for directories also. But as...
http://issues.apache.org/jira/browse/HDFS-2712    Author: Uma Maheswara Rao G, 2015-03-10, 04:59
[HDFS-7310] Mover can give first priority to local DN if it has target storage type available in local DN - HDFS - [issue]
...Currently Mover logic may move blocks to any DN which had target storage type. But if the src DN has target storage type then mover can give highest priority to local DN. If local DN does no...
http://issues.apache.org/jira/browse/HDFS-7310    Author: Uma Maheswara Rao G, 2015-03-02, 17:02
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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