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[HDFS-1243] 0.20 append: Replication tests in TestFileAppend4 should not expect immediate replication - HDFS - [issue]
...The replicationTest() cases in TestFileAppend4 currently assume that the file has both valid replicas immediately after completing the file. However, the datanodes may take some milliseconds...
http://issues.apache.org/jira/browse/HDFS-1243    Author: Todd Lipcon, 2014-07-30, 21:28
[HDFS-1238] A block is stuck in ongoingRecovery due to exception not propagated - HDFS - [issue]
...Setup:+  # datanodes = 2+ replication factor = 2+ failure type = transient (i.e. a java I/O call that throws I/O Exception or returns false)+ # failures = 2+ When/where failures happen:...
http://issues.apache.org/jira/browse/HDFS-1238    Author: Thanh Do, 2014-07-30, 21:27
[HDFS-1231] Generation Stamp mismatches, leading to failed append - HDFS - [issue]
...Summary: the recoverBlock is not atomic, leading retrial fails whenfacing a failure. Setup:+ # available datanodes = 3+ # disks / datanode = 1+ # failures = 2+ failure type = crash+ When/whe...
http://issues.apache.org/jira/browse/HDFS-1231    Author: Thanh Do, 2014-07-30, 21:26
[HDFS-1228] CRC does not match when retrying appending a partial block - HDFS - [issue]
...Summary: when appending to partial block, if is possible thatretrial when facing an exception fails due to a checksum mismatch.Append operation is not atomic (either complete or fail complet...
http://issues.apache.org/jira/browse/HDFS-1228    Author: Thanh Do, 2014-07-30, 21:26
[HDFS-1225] Block lost when primary crashes in recoverBlock - HDFS - [issue]
...Summary: Block is lost if primary datanode crashes in the middle tryUpdateBlock. Setup: available datanode = 2 replica = 2 disks / datanode = 1 failures = 1 failure type = crashWhen/where fa...
http://issues.apache.org/jira/browse/HDFS-1225    Author: Thanh Do, 2014-07-30, 21:24
[HDFS-1224] Stale connection makes node miss append - HDFS - [issue]
...Summary: if a datanode crashes and restarts, it may miss an append. Setup:+ # available datanodes = 3+ # replica = 3 + # disks / datanode = 1+ # failures = 1+ failure type = crash+ When/wher...
http://issues.apache.org/jira/browse/HDFS-1224    Author: Thanh Do, 2014-07-30, 21:24
[HDFS-1382] A transient failure with edits log and a corrupted fstime together could lead to a data loss - HDFS - [issue]
...We experienced a data loss situation that due to double failures.One is transient disk failure with edits logs and the other is corrupted fstime.Here is the detail:1. NameNode has 2 edits di...
http://issues.apache.org/jira/browse/HDFS-1382    Author: Thanh Do, 2014-07-30, 21:23
[HDFS-1293] Allow dfs.balance.bandwidthPerSec to be specified at invocation time for balancer - HDFS - [issue]
...The dfs.balance.bandwidthPerSec parameter is read at Datanode start time. It would be nice to allow this parameter to be passed in when the balancer is invoked so, for example, it can be run...
http://issues.apache.org/jira/browse/HDFS-1293    Author: Patrick Angeles, 2014-07-30, 21:10
[HDFS-6792] hadoop-metrics2.properties exists in hdfs subproject - HDFS - [issue]
...This file is overwriting the one that ships in common.  It should be removed....
http://issues.apache.org/jira/browse/HDFS-6792    Author: Allen Wittenauer, 2014-07-30, 21:03
[HDFS-6785] Should not be able to create encryption zone using path to a non-directory file - HDFS - [issue]
...Currently, users can create an encryption zone while specifying a path to a file, as seen below.[hdfs@schu-enc2 ~]$ cat hihi[hdfs@schu-enc2 ~]$ hadoop fs -put hi /hi[hdfs@schu-enc2 ~]$ hadoo...
http://issues.apache.org/jira/browse/HDFS-6785    Author: Stephen Chu, 2014-07-30, 21:01
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