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[HDFS-5013] Improve HDFS HA document - HDFS - [issue]
...Currently the HA document does not contain a lot of information about how to make QJM work with security enabled. We may improve the document by adding this part in. Also, some more details ...
http://issues.apache.org/jira/browse/HDFS-5013    Author: Jing Zhao, 2013-07-26, 00:29
[HDFS-5020] Make DatanodeProtocol#blockReceivedAndDeleted idempotent - HDFS - [issue]
...Currently DatanodeProtocol#blockReceivedAndDeleted is not idempotent because pending replication maps in NN only tracks the number of the pending replicas, and a retry request about a receiv...
http://issues.apache.org/jira/browse/HDFS-5020    Author: Jing Zhao, 2013-07-24, 08:37
[HDFS-5005] Move SnapshotException and SnapshotAccessControlException to o.a.h.hdfs.protocol - HDFS - [issue]
...We should move the definition of these two exceptions to the protocol package since they can be directly passed to clients....
http://issues.apache.org/jira/browse/HDFS-5005    Author: Jing Zhao, 2013-07-18, 15:09
Re: File not found exception - HDFS - [mail # dev]
...Hi Sugato,      Do you want to read the data from hdfs? From the log it seems like you're reading data from a "RawLocalFileSystem". Maybe you need to check if you have set you...
   Author: Jing Zhao, 2013-07-15, 17:11
[HDFS-4978] Make disallowSnapshot idempotent - HDFS - [issue]
...Currently disallowSnapshot is not idempotent: an exception will be thrown when the directory is already non-snapshottable. This jira tries to make it idempotent....
http://issues.apache.org/jira/browse/HDFS-4978    Author: Jing Zhao, 2013-07-12, 15:09
Re: Regarding hsync - HDFS - [mail # dev]
...Hi Hemant,      HDFS-4213 (https://issues.apache.org/jira/browse/HDFS-4213) may be the one you're looking for. In general, an hsync which can update the file size on NN is ena...
   Author: Jing Zhao, 2013-07-11, 17:12
[HDFS-4877] Snapshot: fix the scenario where a directory is renamed under its prior descendant - HDFS - [issue]
...Suppose we have the following operations:1. rename /dir1/foo/bar to /dir2/bar22. rename /dir1/foo to /dir2/bar2/foo2I.e., we rename a directory (foo) to a child of its prior descendant (bar)...
http://issues.apache.org/jira/browse/HDFS-4877    Author: Jing Zhao, 2013-06-06, 21:30
[HDFS-4863] The root directory should be added to the snapshottable directory list while loading fsimage - HDFS - [issue]
...When the root directory is set as snapshottable, its snapshot quota is changed from 0 to a positive number. While loading fsimage we should check the root's snapshot quota and add it to snap...
http://issues.apache.org/jira/browse/HDFS-4863    Author: Jing Zhao, 2013-05-31, 06:14
[HDFS-4842] Snapshot: identify the correct prior snapshot when deleting a snapshot under a renamed subtree - HDFS - [issue]
...In our long-term running tests for snapshot we find the following bug:1. initially we have directories /test, /test/dir1 and /test/dir2/foo. 2. first take snapshot s0 and s1 on /test.3. modi...
http://issues.apache.org/jira/browse/HDFS-4842    Author: Jing Zhao, 2013-05-31, 06:03
[HDFS-4791] Update and fix deletion of reference inode - HDFS - [issue]
...Currently for deleting or destroying a reference node, we directly call the corresponding methods of the referred inode, and patch code for extra clean after deletion. This jira will revisit...
http://issues.apache.org/jira/browse/HDFS-4791    Author: Jing Zhao, 2013-05-22, 23:12
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