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[HDFS-5008] Make ClientProtocol#abandonBlock() idempotent - HDFS - [issue]
...Currently when abandonBlock is called, if the block does not exist, then the namenode throws an exception. I propose making it idempotent, by returning success if the block that is being aba...
http://issues.apache.org/jira/browse/HDFS-5008    Author: Suresh Srinivas, 2013-07-22, 19:31
Re: I'm interested in working with HDFS-4680. Can somebody be a mentor? - HDFS - [mail # dev]
...Please look at some of the work happening in HADOOP-9688, which is adding a unique UUID (16 bytes) for each RPC request. This is common to all Hadoop RPC, will be available in HDFS, YARN and...
   Author: Suresh Srinivas, 2013-07-18, 00:29
Re: Suggestions required for HDFS-4926 (namenode webserver's page has a tooltip that is inconsistent with the datanode HTML link) - HDFS - [mail # dev]
...Jira has these comments right. I do not see necessity for posting that again to hdfs-dev mailing list. Please continue the discussion in Jira.   Sent from phone  On Jul 15, 2013, a...
   Author: Suresh Srinivas, 2013-07-15, 15:56
[HDFS-4912] Cleanup FSNamesystem#startFileInternal - HDFS - [issue]
...FSNamesystem#startFileInternal is used by both create and append. This results in ugly if else conditions to consider append/create scenarios. This method can be refactored and the code can ...
http://issues.apache.org/jira/browse/HDFS-4912    Author: Suresh Srinivas, 2013-07-13, 15:08
[HDFS-4249] Add status NameNode startup to webUI - HDFS - [issue]
...Currently NameNode WebUI server starts only after the fsimage is loaded, edits are applied and checkpoint is complete. Any status related to namenode startin up is available only in the logs...
http://issues.apache.org/jira/browse/HDFS-4249    Author: Suresh Srinivas, 2013-07-12, 06:23
[HDFS-4465] Optimize datanode ReplicasMap and ReplicaInfo - HDFS - [issue]
...In Hadoop a lot of optimization has been done in namenode data structures to be memory efficient. Similar optimizations are necessary for Datanode process. With the growth in storage per dat...
http://issues.apache.org/jira/browse/HDFS-4465    Author: Suresh Srinivas, 2013-07-11, 23:12
[expand - 2 more] - Re: Willing to work on Issue - HDFS-4901 - Where to start? - HDFS - [mail # dev]
...Vivek,  I have added you as HDFS contributor and assigned the jira to you.  Regards, Suresh   On Mon, Jul 8, 2013 at 6:30 PM, Vivek Ganesan wrote:     http://hortonw...
   Author: Suresh Srinivas, 2013-07-09, 06:16
[HDFS-3092] Enable journal protocol based editlog streaming for standby namenode - HDFS - [issue]
...Currently standby namenode relies on reading shared editlogs to stay current with the active namenode, for namespace changes. BackupNode used streaming edits from active namenode for doing t...
http://issues.apache.org/jira/browse/HDFS-3092    Author: Suresh Srinivas, 2013-07-08, 19:40
[HDFS-3182] Add class to manage JournalList - HDFS - [issue]
...See the comment for details of the JournalList ZooKeeper znode....
http://issues.apache.org/jira/browse/HDFS-3182    Author: Suresh Srinivas, 2013-07-08, 18:23
[expand - 1 more] - Re: data loss after cluster wide power loss - HDFS - [mail # dev]
...On Wed, Jul 3, 2013 at 8:12 AM, Colin McCabe  wrote:   ext3 journal may not hit the disk right. From what I read, if you do not specifically call sync, even the metadata operations...
   Author: Suresh Srinivas, 2013-07-03, 17:19
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