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[HDFS-6023] Test whether the standby NN continues  to checkpoint after the prepare stage - HDFS - [issue]
...This jira introduces new unit test to ensure that the standby NN continues to checkpoint after it creates the rollback fsimage....
http://issues.apache.org/jira/browse/HDFS-6023    Author: Haohui Mai, 2014-02-26, 23:18
[HDFS-6019] Standby NN might not checkpoint when processing the rolling upgrade marker - HDFS - [issue]
...FsEditlogLoader will call FSNameSystem#triggerRollbackCheckpoint() when processing the rollback marker, which looks like the following:void triggerRollbackCheckpoint() {  if (stand...
http://issues.apache.org/jira/browse/HDFS-6019    Author: Haohui Mai, 2014-02-26, 18:21
[HDFS-6017] Query the status of rolling upgrade in the preparation stage in TestRollingUpgrade and TestRollingUpgradeRollback - HDFS - [issue]
...After HDFS-5778, the administrator needs to query the status of the rolling upgrade before he / she can proceed.The unit tests need to be modified to reflect this change....
http://issues.apache.org/jira/browse/HDFS-6017    Author: Haohui Mai, 2014-02-26, 00:14
[HDFS-5923] Do not persist the ACL bit in the FsPermission - HDFS - [issue]
...The current implementation persists and ACL bit in FSImage and editlogs. Moreover, the security decisions also depend on whether the bit is set.The problem here is that we have to maintain t...
http://issues.apache.org/jira/browse/HDFS-5923    Author: Haohui Mai, 2014-02-25, 00:29
[HDFS-5525] Inline dust templates - HDFS - [issue]
...Currently the dust templates are stored as separate files on the server side. The web UI has to make separate HTTP requests to load the templates, which increases the network overheads and p...
http://issues.apache.org/jira/browse/HDFS-5525    Author: Haohui Mai, 2014-02-24, 20:58
[HDFS-5382] Implement the UI of browsing filesystems in HTML 5 page - HDFS - [issue]
...The UI of browsing filesystems can be implemented as an HTML 5 application. The UI can pull the data from WebHDFS....
http://issues.apache.org/jira/browse/HDFS-5382    Author: Haohui Mai, 2014-02-24, 20:58
[HDFS-5775] Consolidate the code for serialization in CacheManager - HDFS - [issue]
...This jira proposes to consolidate the code that is responsible for serializing / deserializing cache manager state into a separate class, so that it is easier to introduce new code path to s...
http://issues.apache.org/jira/browse/HDFS-5775    Author: Haohui Mai, 2014-02-21, 14:52
[HDFS-5981] PBImageXmlWriter generates malformed XML - HDFS - [issue]
...PBImageXmlWriter outputs malformed XML file because it closes the SnapshotDiffSection, NameSection and INodeReferenceSection incorrectly....
http://issues.apache.org/jira/browse/HDFS-5981    Author: Haohui Mai, 2014-02-21, 14:52
[HDFS-5976] Create unit tests for downgrade and finalize - HDFS - [issue]
...This jira tracks the effort of implementing unit tests for downgrades and finalization during rolling upgrades....
http://issues.apache.org/jira/browse/HDFS-5976    Author: Haohui Mai, 2014-02-20, 00:48
[HDFS-5759] Web UI does not show up during the period of loading FSImage - HDFS - [issue]
...The JavaScript code retrieves several JMX responses to construct the UI. Some JMX responses (e.g., FSNamesystemState) are unavailable during the period of loading FSImage, leaving the UI as ...
http://issues.apache.org/jira/browse/HDFS-5759    Author: Haohui Mai, 2014-02-15, 01:30
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