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[HDFS-6917] Add an hdfs debug command to validate blocks, call recoverlease, etc. - HDFS - [issue]
...HDFS should have a debug command which could validate HDFS block files, call recoverLease, and have some other functionality.  These commands would be purely for debugging and would app...
http://issues.apache.org/jira/browse/HDFS-6917    Author: Colin Patrick McCabe, 2014-10-31, 20:12
[HDFS-7309] XMLUtils.mangleXmlString doesn't seem to handle less than sign - HDFS - [issue]
...My expectation was that "<someElement>" + XMLUtils.mangleXmlString(      "Containing<ALessThanSign") + "</someElement>" would be a string acceptable to a S...
http://issues.apache.org/jira/browse/HDFS-7309    Author: Ravi Prakash, 2014-10-31, 20:10
[HDFS-7276] Limit the number of byte arrays used by DFSOutputStream - HDFS - [issue]
...When there are a lot of DFSOutputStream's writing concurrently, the number of outstanding packets could be large.  The byte arrays created by those packets could occupy a lot of memory....
http://issues.apache.org/jira/browse/HDFS-7276    Author: Tsz Wo Nicholas Sze, 2014-10-31, 20:08
[HDFS-7313] Support optional configuration of AES cipher suite on DataTransferProtocol. - HDFS - [issue]
...HDFS-6606 introduced use of AES for encryption of DataTransferProtocol.  This issue proposes introduction of a configuration property for administrators to control whether or not AES is...
http://issues.apache.org/jira/browse/HDFS-7313    Author: Chris Nauroth, 2014-10-31, 19:41
[HDFS-7303]  If there are multiple datanodes on the same host, then only one datanode is listed on the NN UI’s datanode tab - HDFS - [issue]
...If you start multiple datanodes on different ports on the the same host, only one of them appears in the NN UI’s datanode tab.While this is not a common scenario, there are still scenarios w...
http://issues.apache.org/jira/browse/HDFS-7303    Author: Benoy Antony, 2014-10-31, 19:40
[HDFS-6698] try to optimize DFSInputStream.getFileLength() - HDFS - [issue]
...HBase prefers to invoke read() serving scan request, and invoke pread() serving get reqeust. Because pread() almost holds no lock.Let's image there's a read() running, because the definition...
http://issues.apache.org/jira/browse/HDFS-6698    Author: Liang Xie, 2014-10-31, 19:18
[HDFS-7315] DFSTestUtil.readFileBuffer opens extra FSDataInputStream - HDFS - [issue]
...DFSTestUtil.readFileBuffer() calls FileSystem.open() twice.Once just under the try statement, and once inside the IOUtils.copyBytes() call....
http://issues.apache.org/jira/browse/HDFS-7315    Author: Plamen Jeliazkov, 2014-10-31, 18:53
[HDFS-7125] Report failures during adding or removing volumes - HDFS - [issue]
...The details of the failures during hot swapping volumes should be reported through RPC to the user who issues the getting reconfiguration status CLI command (hdfs dfsadmin -reconfigure ... s...
http://issues.apache.org/jira/browse/HDFS-7125    Author: Lei, 2014-10-31, 18:01
[HDFS-7316] DistCp cannot handle ":" colon in filename - HDFS - [issue]
...Similar to HDFS-13.  If a source directory for distCP contains a file with a colon ":", the file will not be copied.Example error message:java.lang.Exception: java.lang.IllegalArgumentE...
http://issues.apache.org/jira/browse/HDFS-7316    Author: Paul Joslin, 2014-10-31, 17:59
[HDFS-7278] Add a command that allows sysadmins to manually trigger full block reports from a DN - HDFS - [issue]
...We should add a command that allows sysadmins to manually trigger full block reports from a DN....
http://issues.apache.org/jira/browse/HDFS-7278    Author: Colin Patrick McCabe, 2014-10-31, 17:34
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