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[HDFS-4857] Snapshot.Root and AbstractINodeDiff#snapshotINode should not be put into INodeMap when loading FSImage - HDFS - [issue]
...Snapshot.Root, though is a subclass of INodeDirectory, is only used to indicate the root of a snapshot. In the meanwhile, AbstractINodeDiff#snapshotINode is used as copies recording the orig...
http://issues.apache.org/jira/browse/HDFS-4857    Author: Jing Zhao, 2013-08-27, 23:08
[HDFS-5111] Remove duplicated error message for snapshot commands when processing invalid arguments - HDFS - [issue]
...The FSShell commands CreateSnapshot/DeleteSnapshot/RenameSnapshot currently may output duplicated error msg. E.g., when trying to create snapshot on a file, we have the following error msg:c...
http://issues.apache.org/jira/browse/HDFS-5111    Author: Jing Zhao, 2013-08-21, 15:57
[HDFS-5076] Add MXBean methods to query NN's transaction information and JournalNode's journal status - HDFS - [issue]
...Currently NameNode already provides RPC calls to get its last applied transaction ID and most recent checkpoint's transaction ID. It can be helpful to provide support to enable querying thes...
http://issues.apache.org/jira/browse/HDFS-5076    Author: Jing Zhao, 2013-08-16, 15:44
[HDFS-5091] Support for spnego keytab separate from the JournalNode keytab for secure HA - HDFS - [issue]
...This is similar to HDFS-3466 and HDFS-4105: for JournalNode we should also use the web keytab file for SPNEGO filter....
http://issues.apache.org/jira/browse/HDFS-5091    Author: Jing Zhao, 2013-08-14, 15:26
[HDFS-5025] Record ClientId and CallId in EditLog to enable rebuilding retry cache in case of HA failover - HDFS - [issue]
...In case of HA failover, we need to be able to rebuild the retry cache in the other Namenode. We thus need to record client id and call id in the edit log for those "AtMostOnce" operations....
http://issues.apache.org/jira/browse/HDFS-5025    Author: Jing Zhao, 2013-08-02, 06:13
[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
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