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[HDFS-2938] Recursive delete of a large directory makes namenode unresponsive
...When deleting a large directory with millions of files, namenode holding FSNamesystem lock will make it unresponsive for other request. In this scenario HDFS-173 added a mechanism to delete ...
, 2012-06-06, 00:29
[HDFS-3211] JournalProtocol changes required for introducing epoch and fencing
...JournalProtocol changes to introduce epoch in every request. Adding new method fence for fencing a JournalService. On BackupNode fence is a no-op....
, 2012-05-12, 14:03
[HDFS-3393] Rollback on newer release must not be allowed if the layout version in the snapshot is for older release.
...After upgrading to a new release, the procedure to rollback to older release is to start the namenode in older release with -rollback option.As reported in HADOOP-8371, the rollback was allo...
, 2012-05-10, 05:01
[HDFS-2895] Remove Writable wire protocol related code that is no longer necessary
...With recent changes to move wire protocol to protocol buffers, the existing writable, related translators are no longer necessary....
, 2012-04-10, 00:57
[HDFS-3212] Persist the epoch received by the JournalService
...epoch received over JournalProtocol should be persisted by JournalService....
, 2012-04-06, 18:46
[HDFS-3204] Minor modification to JournalProtocol.proto to make it generic
...JournalProtocol.proto uses NamenodeRegistration in methods such as journal() for identifying the source. I want to make it generic so that the method can be called with journal information t...
, 2012-04-06, 16:48
[HDFS-3183] Add JournalManager implementation to JournalDaemons for storing edits
...The JournalManager is used in HA configuration and uses the following journal daemons on: Local namenode Other namenode A configured JournalDaemon target from the configuration...
, 2012-04-04, 06:23
[HDFS-3193] HDFS journal logging improvement
...I want to use this jira to discuss doing HDFS editlog logging before namespace update. Couple of bugs (though have been solved with work arounds) HDFS-2815, HDFS-3191 are related to this. Al...
, 2012-04-04, 06:21
[HDFS-2506] Umbrella jira for tracking separation of wire protocol datatypes from the implementation types
...Umbrella jira for tracking separation of wire protocol datatypes from the implementation types. See subtasks for more details....
, 2012-03-28, 09:23
[HDFS-2499] Fix RPC client creation bug from HDFS-2459
...HDFS-2459 incorrectly implemented the RPC getProxy for the JournalProtocol client side. It sets retry policies and other policies that are not necessary...
, 2012-03-28, 09:06
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