|  HDFS-15  | 
 Rack replication policy can be violated for over replicated blocks  | 
  Critical  | 
 .  | 
 Hairong Kuang  | 
 Jitendra Nath Pandey  | 
|  MAPREDUCE-1522  | 
 FileInputFormat may change the file system of an input path  | 
  Blocker  | 
 .  | 
 Tsz Wo Nicholas Sze  | 
 Tsz Wo Nicholas Sze  | 
|  MAPREDUCE-1407  | 
 Invalid example in the documentation of org.apache.hadoop.mapreduce.{Mapper,Reducer}  | 
  Trivial  | 
 documentation  | 
 Benoit Sigoure  | 
 Benoit Sigoure  | 
|  HDFS-955  | 
 FSImage.saveFSImage can lose edits  | 
  Blocker  | 
 namenode  | 
 Todd Lipcon  | 
 Konstantin Shvachko  | 
|  HDFS-1041  | 
 DFSClient does not retry in getFileChecksum(..)  | 
  Major  | 
 hdfs-client  | 
 Tsz Wo Nicholas Sze  | 
 Tsz Wo Nicholas Sze  | 
|  HDFS-909  | 
 Race condition between rollEditLog or rollFSImage ant FSEditsLog.write operations  corrupts edits log  | 
  Blocker  | 
 namenode  | 
 Cosmin Lehene  | 
 Todd Lipcon  | 
|  HADOOP-6702  | 
 Incorrect exit codes for “dfs -chown”, “dfs -chgrp”  when input is given in wildcard format.  | 
  Minor  | 
 fs  | 
 Ravi Phulari  | 
 Ravi Phulari  | 
|  HADOOP-6760  | 
 WebServer shouldn’t increase port number in case of negative port setting caused by Jetty’s race  | 
  Major  | 
 .  | 
 Konstantin Boudnik  | 
 Konstantin Boudnik  | 
|  MAPREDUCE-1372  | 
 ConcurrentModificationException in JobInProgress  | 
  Blocker  | 
 jobtracker  | 
 Amareshwari Sriramadasu  | 
 Dick King  | 
|  MAPREDUCE-118  | 
 Job.getJobID() will always return null  | 
  Blocker  | 
 client  | 
 Amar Kamat  | 
 Amareshwari Sriramadasu  | 
|  MAPREDUCE-1880  | 
 “java.lang.ArithmeticException: Non-terminating decimal expansion; no exact representable decimal result.” while running “hadoop jar hadoop-0.20.1+169.89-examples.jar pi 4 30”  | 
  Minor  | 
 examples  | 
 Victor Pakhomov  | 
 Tsz Wo Nicholas Sze  | 
|  HDFS-1258  | 
 Clearing namespace quota on “/” corrupts FS image  | 
  Blocker  | 
 namenode  | 
 Aaron T. Myers  | 
 Aaron T. Myers  | 
|  HADOOP-6881  | 
 The efficient comparators aren’t always used except for BytesWritable and Text  | 
  Major  | 
 .  | 
 Owen O’Malley  | 
 Owen O’Malley  | 
|  HADOOP-6833  | 
 IPC leaks call parameters when exceptions thrown  | 
  Blocker  | 
 .  | 
 Todd Lipcon  | 
 Todd Lipcon  | 
|  HADOOP-6928  | 
 Fix BooleanWritable comparator in 0.20  | 
  Major  | 
 io  | 
 Owen O’Malley  | 
 Johannes Zillmann  | 
|  HDFS-1404  | 
 TestNodeCount logic incorrect in branch-0.20  | 
  Minor  | 
 namenode, test  | 
 Todd Lipcon  | 
 Todd Lipcon  | 
|  MAPREDUCE-1280  | 
 Eclipse Plugin does not work with Eclipse Ganymede (3.4)  | 
  Major  | 
 .  | 
 Aaron Kimball  | 
 Alex Kozlov  | 
|  HADOOP-6724  | 
 IPC doesn’t properly handle IOEs thrown by socket factory  | 
  Major  | 
 ipc  | 
 Todd Lipcon  | 
 Todd Lipcon  | 
|  HDFS-1240  | 
 TestDFSShell failing in branch-20  | 
  Critical  | 
 test  | 
 Todd Lipcon  | 
 Todd Lipcon  | 
|  HDFS-727  | 
 bug setting block size hdfsOpenFile  | 
  Blocker  | 
 libhdfs  | 
 Eli Collins  | 
 Eli Collins  | 
|  HDFS-908  | 
 TestDistributedFileSystem fails with Wrong FS on weird hosts  | 
  Minor  | 
 test  | 
 Todd Lipcon  | 
 Todd Lipcon  | 
|  HDFS-1377  | 
 Quota bug for partial blocks allows quotas to be violated  | 
  Blocker  | 
 namenode  | 
 Eli Collins  | 
 Eli Collins  | 
|  HDFS-1406  | 
 TestCLI fails on Ubuntu with default /etc/hosts  | 
  Minor  | 
 .  | 
 Todd Lipcon  | 
 Konstantin Boudnik  | 
|  MAPREDUCE-2262  | 
 Capacity Scheduler unit tests fail with class not found  | 
  Major  | 
 capacity-sched  | 
 Owen O’Malley  | 
 Owen O’Malley  | 
|  HADOOP-6923  | 
 Native Libraries do not load if a different platform signature is returned from org.apache.hadoop.util.PlatformName  | 
  Major  | 
 native  | 
 Stephen Watt  | 
 Stephen Watt  | 
|  HDFS-1543  | 
 Reduce dev. cycle time by moving system testing artifacts from default build and push to maven for HDFS  | 
  Major  | 
 .  | 
 Arun C Murthy  | 
 Luke Lu  | 
|  HDFS-1836  | 
 Thousand of CLOSE_WAIT socket  | 
  Major  | 
 hdfs-client  | 
 Dennis Cheung  | 
 Bharath Mundlapudi  | 
|  HADOOP-7116  | 
 raise contrib junit test jvm memory size to 512mb  | 
  Major  | 
 test  | 
 Owen O’Malley  | 
 Owen O’Malley  |