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test-patch.sh physical OOM errors - HDFS - [mail # dev]
...Hi all,I've seen a few precommit builds recently fail with an error like this:https://builds.apache.org/job/PreCommit-HDFS-Build/6103/artifact/trunk/patchprocess/trunkJavadocWarnings.txtI th...
   Author: Andrew Wang, 2014-02-10, 23:41
[HDFS-5912] TestDistributedFileSystem#testGetFileBlockStorageLocationsBatching is flaky - HDFS - [issue]
...Saw this on a recent test-patch run, couldn't repro locally.java.lang.AssertionError: Expected block to be valid on datanode 127.0.0.1:55797 at org.junit.Assert.fail(Assert.java:93) at org.j...
http://issues.apache.org/jira/browse/HDFS-5912    Author: Andrew Wang, 2014-02-07, 22:56
[HDFS-5709] Improve NameNode upgrade with existing reserved paths and path components - HDFS - [issue]
...Right now in trunk, upgrade fails messily if the old fsimage or edits refer to a directory named ".snapshot". We should at least print a better error message (which I believe was the origina...
http://issues.apache.org/jira/browse/HDFS-5709    Author: Andrew Wang, 2014-02-06, 14:48
[expand - 1 more] - Re: Re-swizzle 2.3 - HDFS - [mail # dev]
...Thanks for the link Arun, I went ahead and punted one HADOOP blocker, andthe remaining two HADOOP/HDFS looks like they're under active review.Post-swizzle, it seems like most blockers for 2....
   Author: Andrew Wang, 2014-02-01, 01:26
[HDFS-5845] SecondaryNameNode dies when checkpointing with cache pools - HDFS - [issue]
...The SecondaryNameNode clears and reloads its FSNamesystem when doing checkpointing. However, FSNamesystem#clear does not clear CacheManager state during this reload. This leads to an error l...
http://issues.apache.org/jira/browse/HDFS-5845    Author: Andrew Wang, 2014-01-29, 06:11
[HDFS-5841] Update HDFS caching documentation with new changes - HDFS - [issue]
...The caching documentation is a little out of date, since it's missing description of features like TTL and expiration....
http://issues.apache.org/jira/browse/HDFS-5841    Author: Andrew Wang, 2014-01-28, 23:36
[HDFS-4949] Centralized cache management in HDFS - HDFS - [issue]
...HDFS currently has no support for managing or exposing in-memory caches at datanodes. This makes it harder for higher level application frameworks like Hive, Pig, and Impala to effectively u...
http://issues.apache.org/jira/browse/HDFS-4949    Author: Andrew Wang, 2014-01-25, 13:38
[HDFS-5149] Support for federated cache pools - HDFS - [issue]
...The federation concept of a "blockpool" has not pervaded the caching implementation thus far, e.g. datanodes do not track and report usage by block pool, some namenode operations are not blo...
http://issues.apache.org/jira/browse/HDFS-5149    Author: Andrew Wang, 2014-01-22, 22:02
[HDFS-5253] Add requesting user's name to PathBasedCacheEntry - HDFS - [issue]
...It'll be useful to have the requesting user's name in PathBasedCacheEntry for tracking per-user statistics (e.g. amount of data cached by a user)....
http://issues.apache.org/jira/browse/HDFS-5253    Author: Andrew Wang, 2014-01-22, 22:00
[HDFS-5490] Add libhdfs support for getting cached block replica locations - HDFS - [issue]
...As Colin brought up in HDFS-5450, we should add support for getting cached block locations to libhdfs....
http://issues.apache.org/jira/browse/HDFS-5490    Author: Andrew Wang, 2014-01-22, 21:59
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