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[HDFS-13728] Disk Balancer should not fail if volume usage is greater than capacity - HDFS - [issue]
...We have seen a couple of scenarios where the disk balancer fails because a datanode reports more spaced used on a disk than its capacity, which should not be possible.This is due to the chec...    Author: Stephen ODonnell , 2018-08-08, 05:28
[HDFS-13727] Log full stack trace if DiskBalancer exits with an unhandled exception - HDFS - [issue]
...In HDFS-13175 it was discovered that when a DN reports the usage on a volume to be greater than the volume capacity, the disk balancer will fail with an unhelpful error:$ hdfs diskbalancer -...    Author: Stephen ODonnell , 2018-07-27, 17:31
[HDFS-13170] Port webhdfs unmaskedpermission parameter to HTTPFS - HDFS - [issue]
...HDFS-6962 fixed a long standing issue where default ACLs are not correctly applied to files when they are created from the hadoop shell.With this change, if you create a file with default AC...    Author: Stephen ODonnell , 2018-04-05, 17:09
[HDFS-12910] Secure Datanode Starter should log the port when it fails to bind - HDFS - [issue]
...When running a secure data node, the default ports it uses are 1004 and 1006. Sometimes other OS services can start on these ports causing the DN to fail to start (eg the nfs service can use...    Author: Stephen ODonnell , 2017-12-15, 03:42
[HDFS-11215] Log Namenode thread dump on unexpected exits - HDFS - [issue]
...With HA namenodes, reasonably frequently we can see a namenode exit due to a quorum of journals not responding inside the 20 second timeout, for example:2016-11-29 01:43:22,969  WARN or...    Author: Stephen ODonnell , 2016-12-16, 16:28