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[HDFS-3824] TestHftpDelegationToken fails intermittently with JDK7 - HDFS - [issue]
...testHdfsDelegationToken fails if not run before testSelectHftpDelegationToken and testSelectHsftpDelegationToken:Tests run: 3, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 0.541 sec <...
http://issues.apache.org/jira/browse/HDFS-3824    Author: Trevor Robinson, 2014-09-04, 00:19
[HDFS-4181] LeaseManager tries to double remove and prints extra messages - HDFS - [issue]
...When checkLeases() runs, internalReleaseLease() is called on the expired ones. When it returns true, the lease is already removed, yet it is tried again in checkLease(). This causes unnecess...
http://issues.apache.org/jira/browse/HDFS-4181    Author: Kihwal Lee, 2014-09-04, 00:19
[HDFS-4090] getFileChecksum() result incompatible when called against zero-byte files. - HDFS - [issue]
...When getFileChecksum() is called against a zero-byte file, the branch-1 client returns MD5MD5CRC32FileChecksum with crcPerBlock=0, bytePerCrc=0 and md5=70bc8f4b72a86921468bf8e8441dce51, wher...
http://issues.apache.org/jira/browse/HDFS-4090    Author: Kihwal Lee, 2014-09-04, 00:19
[HDFS-3990] NN's health report has severe performance problems - HDFS - [issue]
...The dfshealth page will place a read lock on the namespace while it does a dns lookup for every DN.  On a multi-thousand node cluster, this often results in 10s+ load time for the healt...
http://issues.apache.org/jira/browse/HDFS-3990    Author: Daryn Sharp, 2014-09-04, 00:19
[HDFS-4182] SecondaryNameNode leaks NameCache entries - HDFS - [issue]
...We recently saw an issue where a 2NN ran out of memory, even though it had a relatively small fsimage. When we looked at the heap dump, we saw that all of the memory had gone to entries in t...
http://issues.apache.org/jira/browse/HDFS-4182    Author: Todd Lipcon, 2014-09-04, 00:19
[HDFS-4075] Reduce recommissioning overhead - HDFS - [issue]
...When datanodes are recommissioned, {BlockManager#processOverReplicatedBlocksOnReCommission()} is called for each rejoined node and excess blocks are added to the invalidate list. The pr...
http://issues.apache.org/jira/browse/HDFS-4075    Author: Kihwal Lee, 2014-09-04, 00:19
[HDFS-4172] namenode does not URI-encode parameters when building URI for datanode request - HDFS - [issue]
...Param values such asfoo&baror foo=barAre not escaped in Param.toSortedString()When these are given as, say, token parameter values, a string like&token=foo&bar&token=foo=bari...
http://issues.apache.org/jira/browse/HDFS-4172    Author: Derek Dagit, 2014-09-04, 00:19
[HDFS-4080] Add a separate logger for block state change logs to enable turning off those logs - HDFS - [issue]
...Although the block-level logging in namenode is useful for debugging, it can add a significant overhead to busy hdfs clusters since they are done while the namespace write lock is held. One ...
http://issues.apache.org/jira/browse/HDFS-4080    Author: Kihwal Lee, 2014-09-04, 00:19
[HDFS-4162] Some malformed and unquoted HTML strings are returned from datanode web ui - HDFS - [issue]
...When browsing to the datanode at /browseDirectory.jsp, if a path with HTML characters is requested, the resulting error page echos back the input unquoted.Example:http://localhost:50075/brow...
http://issues.apache.org/jira/browse/HDFS-4162    Author: Derek Dagit, 2014-09-04, 00:19
[HDFS-3829] TestHftpURLTimeouts fails intermittently with JDK7 - HDFS - [issue]
...testHftpSocketTimeout fails if run after testHsftpSocketTimeout:testHftpSocketTimeout(org.apache.hadoop.hdfs.TestHftpURLTimeouts): expected:<connect timed out> but was:<null>...
http://issues.apache.org/jira/browse/HDFS-3829    Author: Trevor Robinson, 2014-09-04, 00:19
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