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[HDFS-6948] DN rejects blocks if it has older UC block - HDFS - [issue]
...DNs appear to always reject blocks, even with newer genstamps, if it already has a UC copy in its tmp dir.ReplicaAlreadyExistsException: BlockXXX alreadyexists in state TEMPORARY and thus ca...
http://issues.apache.org/jira/browse/HDFS-6948    Author: Daryn Sharp, 2014-09-06, 01:32
[HDFS-7009] Active NN and standby NN have different live nodes - HDFS - [issue]
...To follow up on https://issues.apache.org/jira/browse/HDFS-6478, in most cases, given DN sends HB and BR to NN regularly, if a specific RPC call fails, it isn't a big deal.However, there are...
http://issues.apache.org/jira/browse/HDFS-7009    Author: Ming Ma, 2014-09-06, 01:31
[HDFS-7007] Interfaces to plugin ConsensusNode. - HDFS - [issue]
...This is to introduce interfaces in NameNode and namesystem, which are needed to plugin ConsensusNode....
http://issues.apache.org/jira/browse/HDFS-7007    Author: Konstantin Shvachko, 2014-09-06, 01:28
[HDFS-6982] nntop: topĀ­-like tool for name node users - HDFS - [issue]
...In this jira we motivate the need for nntop, a tool that, similarly to what top does in Linux, gives the list of top users of the HDFS name node and gives insight about which users are sendi...
http://issues.apache.org/jira/browse/HDFS-6982    Author: Maysam Yabandeh, 2014-09-06, 01:23
[HDFS-6606] Optimize HDFS Encrypted Transport performance - HDFS - [issue]
...In HDFS-3637, Aaron T. Myers added support for encrypting the DataTransferProtocol, it was a great work.It utilizes SASL Digest-MD5 mechanism (use Qop: auth-conf),  it supports three se...
http://issues.apache.org/jira/browse/HDFS-6606    Author: Yi Liu, 2014-09-06, 00:13
[HDFS-3637] Add support for encrypting the DataTransferProtocol - HDFS - [issue]
...Currently all HDFS RPCs performed by NNs/DNs/clients can be optionally encrypted. However, actual data read or written between DNs and clients (or DNs to DNs) is sent in the clear. When proc...
http://issues.apache.org/jira/browse/HDFS-3637    Author: Aaron T. Myers, 2014-09-06, 00:13
[HDFS-2856] Fix block protocol so that Datanodes don't require root or jsvc - HDFS - [issue]
...Since we send the block tokens unencrypted to the datanode, we currently start the datanode as root using jsvc and get a secure (< 1024) port.If we have the datanode generate a nonce and ...
http://issues.apache.org/jira/browse/HDFS-2856    Author: Owen OMalley, 2014-09-06, 00:13
[HDFS-6727] Refresh data volumes on DataNode based on configuration changes - HDFS - [issue]
...HDFS-1362 requires DataNode to reload configuration file during the runtime, so that DN can change the data volumes dynamically. This JIRA reuses the reconfiguration framework introduced by ...
http://issues.apache.org/jira/browse/HDFS-6727    Author: Lei, 2014-09-06, 00:07
[HDFS-6877] Interrupt writes when the volume being written is removed. - HDFS - [issue]
...It will be a race condition that a client is actively writing a block, while the volume that this block is on is being removed....
http://issues.apache.org/jira/browse/HDFS-6877    Author: Lei, 2014-09-05, 23:56
[HDFS-4239] Means of telling the datanode to stop using a sick disk - HDFS - [issue]
...If a disk has been deemed 'sick' – i.e. not dead but wounded, failing occasionally, or just exhibiting high latency – your choices are:1. Decommission the total datanode.  I...
http://issues.apache.org/jira/browse/HDFS-4239    Author: stack, 2014-09-05, 23:32
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