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[HDFS-2393] Mark appropriate methods of ClientProtocol with the idempotent annotation - HDFS - [issue]
...HDFS-1973 will make the DFSClient take advantage of the annotation. This JIRA is to identify which methods can be marked as idempotent....
http://issues.apache.org/jira/browse/HDFS-2393    Author: Aaron T. Myers, 2013-05-25, 00:04
Re: [VOTE] Merge HDFS-2802 snapshot feature to trunk - HDFS - [mail # dev]
...I'm +1 as well on merging this branch to trunk. I've thoroughly reviewed/discussed the design and have personally reviewed much of the code as well. Good stuff.  I would have preferred ...
   Author: Aaron T. Myers, 2013-05-08, 00:29
[HDFS-4739] NN can miscalculate the number of extra edit log segments to retain - HDFS - [issue]
...The code in NNStorageRetentionManager#purgeOldStorage is intended to place a cap on the number of extra edit log segments retained beyond what is strictly required to replay the FS history s...
http://issues.apache.org/jira/browse/HDFS-4739    Author: Aaron T. Myers, 2013-04-25, 15:07
Re: Cannot communicate - HDFS - [mail # dev]
...Hi Kevin,  Since it seems like this is a CDH-specific question, I recommend you email [EMAIL PROTECTED] where you should be able to get some help with this.   Aaron T. Myers Softwa...
   Author: Aaron T. Myers, 2013-04-24, 02:19
Re: Convention question for using DFSConfigKey constants : are zeros magic? - HDFS - [mail # dev]
...On Fri, Apr 19, 2013 at 3:40 PM, Jay Vyas  wrote:   There's certainly no "enforcement" of it, no. We try to use consistent prefixes, append units like "millis" or "seconds" to conf...
   Author: Aaron T. Myers, 2013-04-24, 02:15
Re: Heads up - Snapshots feature merge into trunk - HDFS - [mail # dev]
...On Fri, Apr 19, 2013 at 6:53 AM, Tsz Wo Sze  wrote:   I agree that they're not administrative operations in the sense that they don't strictly require super user privilege, but the...
   Author: Aaron T. Myers, 2013-04-18, 22:06
Re: VOTE: HDFS-347 merge - HDFS - [mail # dev]
...Since the merge vote passed, I have merged the HDFS-347 branch to trunk. Leaving the JIRA open for now until we also do the merge to branch-2.  Colin, thanks a ton for the monster contr...
   Author: Aaron T. Myers, 2013-04-13, 02:16
[HDFS-4658] Standby NN will log that it has received a block report "after becoming active" - HDFS - [issue]
...Even when in the standby state the following line will sometimes be logged:INFO blockmanagement.BlockManager: BLOCK* processReport: Received first block report from after ...
http://issues.apache.org/jira/browse/HDFS-4658    Author: Aaron T. Myers, 2013-04-04, 15:05
[HDFS-4656] DN heartbeat loop can be briefly tight - HDFS - [issue]
...The DN hearbeat loop looks roughly like this:if (now - timeOfLastHeartbeat > configuredHeartbeatInterval) {  // do heartbeat}timeToWait = configuredHeartbeatInterval - (now - ti...
http://issues.apache.org/jira/browse/HDFS-4656    Author: Aaron T. Myers, 2013-04-04, 00:48
[HDFS-4655] DNA_FINALIZE is logged as being an unknown command by the DN when received from the standby NN - HDFS - [issue]
...This is harmless since the alternative is just to log the command as being ignored, but this bug results in a somewhat concerning error message appearing in the logs....
http://issues.apache.org/jira/browse/HDFS-4655    Author: Aaron T. Myers, 2013-04-02, 15:07
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