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[HDFS-945] Make NameNode resilient to DoS attacks (malicious or otherwise) - HDFS - [issue]
...We've seen defective applications cause havoc on the NameNode, for e.g. by doing 100k+ 'listStatus' on very large directories (60k files) etc.I'd like to start a discussion around how we pre...
http://issues.apache.org/jira/browse/HDFS-945    Author: Arun C Murthy, 2014-07-30, 00:15
[HDFS-281] Explore usage of the sendfile api via java.nio.channels.FileChannel.transfer{To|From} for i/o in datanodes - HDFS - [issue]
...We could potentially gain a lot of performance by using the sendfile system call:$ man sendfileDESCRIPTION       This  call  copies  data between one file ...
http://issues.apache.org/jira/browse/HDFS-281    Author: Arun C Murthy, 2014-07-17, 19:54
[HDFS-390] Hadoop daemons should support generic command-line options by implementing the Tool interface - HDFS - [issue]
...Hadoop daemons (NN/DN/JT/TT) should support generic command-line options (i.e. -nn / -jt/ -conf / -D) by implementing the Tool interface.This is particularly useful for cases where the maste...
http://issues.apache.org/jira/browse/HDFS-390    Author: Arun C Murthy, 2014-07-17, 19:17
Re: Thinking ahead to 2.4 - HDFS - [mail # dev]
...Other than Azuryy I haven't heard from HDFS folks. To help move this discussion along, I've created branch-2.4. Let's continue discussions here.Committers, please exercise caution to ensure ...
   Author: Arun C Murthy, 2014-02-18, 05:44
Issue with my username on my company provided dev box? (Was: …) - HDFS - [mail # dev]
...Stack, Apologies for the late response, I just saw this.On Jan 29, 2014, at 3:33 PM, Stack  wrote: Thank you for tarring all my work here with a brush by insinuating not sure ...
   Author: Arun C Murthy, 2014-01-30, 03:31
[HDFS-2121] Add ability to create block replicas during off-switch reads - HDFS - [issue]
...Idea: when a DFSClient reads an off-switch replica, we could tee an extra, temporal replica to the local DN if the NN thinks it makes sense. Then we could delete the ones which were part of ...
http://issues.apache.org/jira/browse/HDFS-2121    Author: Arun C Murthy, 2013-03-16, 01:23
[HDFS-4336] hadoop-hdfs-httpfs fails to build during 'mvn package' - HDFS - [issue]
http://issues.apache.org/jira/browse/HDFS-4336    Author: Arun C Murthy, 2012-12-23, 03:49
[HDFS-1338] Improve TestDFSIO - HDFS - [issue]
...Currently the read test in TestDFSIO benchmark just opens a large side file and measures the read performance. The MR scheduler has no opportunity to do any optimization for the TestDFSIO MR...
http://issues.apache.org/jira/browse/HDFS-1338    Author: Arun C Murthy, 2012-09-27, 15:25
[HDFS-3871] Change NameNodeProxies to use HADOOP-8748 - HDFS - [issue]
...Change NameNodeProxies to use util method introduced via HADOOP-8748....
http://issues.apache.org/jira/browse/HDFS-3871    Author: Arun C Murthy, 2012-09-25, 19:22
[HDFS-3614] Revert unused MiniDFSCluster constructor from HDFS-3049 - HDFS - [issue]
...Added a unused parameter to ctor of MiniDFSCluster....
http://issues.apache.org/jira/browse/HDFS-3614    Author: Arun C Murthy, 2012-07-10, 20:26
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elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB