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[HDFS-7311] TestLeaseRecovery2 sometimes fails in trunk - HDFS - [issue]
...From https://builds.apache.org/job/Hadoop-Hdfs-trunk/1917/ :REGRESSION:  org.apache.hadoop.hdfs.TestLeaseRecovery2.testHardLeaseRecoveryError Message:Call From asf909.gq1.ygridcore.net/...
http://issues.apache.org/jira/browse/HDFS-7311    Author: Ted Yu, 2014-10-30, 15:57
[HDFS-7230] Add rolling downgrade documentation - HDFS - [issue]
...HDFS-5535 made a lot of improvement on rolling upgrade.  It also added the cluster downgrade feature.  However, the downgrade described in HDFS-5535 requires cluster downtime. &nbs...
http://issues.apache.org/jira/browse/HDFS-7230    Author: Tsz Wo Nicholas Sze, 2014-10-30, 15:25
[HDFS-7287] The OfflineImageViewer (OIV) can output invalid XML depending on the filename - HDFS - [issue]
...If the filename contains a character which is invalid in XML, TextWriterImageVisitor.write() or PBImageXmlWriter.o() prints out the string unescaped. For us this was the character 0x0...
http://issues.apache.org/jira/browse/HDFS-7287    Author: Ravi Prakash, 2014-10-30, 15:17
[HDFS-7263] Snapshot read can reveal future bytes for appended files. - HDFS - [issue]
...The following sequence of steps will produce extra bytes, that should not be visible, because they are not in the snapshot. Create a file of size L, where L % blockSize != 0. Create a snapsh...
http://issues.apache.org/jira/browse/HDFS-7263    Author: Konstantin Shvachko, 2014-10-30, 15:17
[HDFS-7300] The getMaxNodesPerRack() method in BlockPlacementPolicyDefault is flawed - HDFS - [issue]
...The getMaxNodesPerRack() can produce an undesirable result in some cases. Three replicas on two racks. The max is 3, so everything can go to one rack. Two replicas on two or more racks. The ...
http://issues.apache.org/jira/browse/HDFS-7300    Author: Kihwal Lee, 2014-10-30, 15:17
[HDFS-7305] NPE seen in wbhdfs FS while running SLive - HDFS - [issue]
...2014-10-23 10:22:49,066 WARN [main] org.apache.hadoop.mapred.Task: Task status: "Failed at running due to java.lang.NullPointerException at org.apache.hadoop.hdfs.web.WebHdfsFileSystem.valid...
http://issues.apache.org/jira/browse/HDFS-7305    Author: Arpit Gupta, 2014-10-30, 15:17
[HDFS-6994] libhdfs3 - A native C/C++ HDFS client - HDFS - [issue]
...Hi AllI just got the permission to open source libhdfs3, which is a native C/C++ HDFS client based on Hadoop RPC protocol and HDFS Data Transfer Protocol.libhdfs3 provide the libhdfs style C...
http://issues.apache.org/jira/browse/HDFS-6994    Author: Zhanwei Wang, 2014-10-30, 14:29
[HDFS-7180] NFSv3 gateway frequently gets stuck due to GC - HDFS - [issue]
...We are using Hadoop 2.5.0 (HDFS only) and start and mount the NFSv3 gateway on one node in the cluster to let users upload data with rsync.However, we find the NFSv3 daemon seems frequently ...
http://issues.apache.org/jira/browse/HDFS-7180    Author: Eric Zhiqiang Ma, 2014-10-30, 13:14
[HDFS-7295] Support arbitrary max expiration times for delegation token - HDFS - [issue]
...Currently the max lifetime of HDFS delegation tokens is hardcoded to 7 days. This is a problem for different users of HDFS such as long running YARN apps. Users should be allowed to optional...
http://issues.apache.org/jira/browse/HDFS-7295    Author: Anubhav Dhoot, 2014-10-30, 09:25
[HDFS-7212] Huge number of BLOCKED threads rendering DataNodes useless - HDFS - [issue]
...There are 3000 - 8000 threads in each datanode JVM, blocking the entire VM and rendering the service unusable, missing heartbeats and stopping data access. The threads look like this:3415 (s...
http://issues.apache.org/jira/browse/HDFS-7212    Author: Istvan Szukacs, 2014-10-30, 08:03
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