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[HADOOP-10099] Reduce chance for RPC denial of service - Hadoop - [issue]
...A RPC server may accept an unlimited number of connections unless indirectly bounded by a blocking operation in the RPC handler threads.  The NN's namespace locking happens to cause thi...
http://issues.apache.org/jira/browse/HADOOP-10099    Author: Daryn Sharp, 2013-11-14, 19:28
Re: [VOTE] Release Apache Hadoop 2.2.0 - Hadoop - [mail # dev]
...+1  I did some basic testing and it appears to work fine.  Daryn  On Oct 7, 2013, at 2:00 AM, Arun C Murthy wrote:  ...
   Author: Daryn Sharp, 2013-10-07, 15:28
[HADOOP-10014] Symlink resolution is fundamentally broken for multi-layered filesystems - Hadoop - [issue]
...Symlink resolution is performed on a per-filesystem basis.  In a multi-layered filesystem, the symlinks need to be resolved relative to the highest level filesystem in the stack.  ...
http://issues.apache.org/jira/browse/HADOOP-10014    Author: Daryn Sharp, 2013-10-04, 17:34
Re: symlink support in Hadoop 2 GA - Hadoop - [mail # dev]
...I reluctantly agree that we should disable symlinks in 2.2 until we can sort out the compatibility issues.  I'm reluctant in the sense that its a feature users have long wanted, and it'...
   Author: Daryn Sharp, 2013-10-03, 21:08
[HADOOP-10013] FileSystem checkPath accepts invalid paths with an authority but no scheme - Hadoop - [issue]
...FileSystem#checkPath will consider paths of the form //junk/path as being valid for the given fs.  The problem is checkPath shorts out if the path contains no scheme - assuming it must ...
http://issues.apache.org/jira/browse/HADOOP-10013    Author: Daryn Sharp, 2013-10-03, 16:40
[HADOOP-9021] Enforce configured SASL method on the server - Hadoop - [issue]
...The RPC needs to restrict itself to only using the configured SASL method....
http://issues.apache.org/jira/browse/HADOOP-9021    Author: Daryn Sharp, 2013-09-29, 03:17
[HADOOP-9868] Server must not advertise kerberos realm - Hadoop - [issue]
...HADOOP-9789 broke kerberos authentication by making the RPC server advertise the kerberos service principal realm.  SASL clients and servers do not support specifying a realm, so it mus...
http://issues.apache.org/jira/browse/HADOOP-9868    Author: Daryn Sharp, 2013-09-25, 00:33
[HADOOP-9953] Improve RPC server throughput - Hadoop - [issue]
...Bottlenecks in the RPC layer are in part holding back the performance of the NN.  Even under very heavy load, the NN usually can't saturate more than a few cores even with load patterns...
http://issues.apache.org/jira/browse/HADOOP-9953    Author: Daryn Sharp, 2013-09-20, 16:19
[HADOOP-9930] Desync AbstractDelegationTokenSecretManager - Hadoop - [issue]
...The ADTSM is heavily synchronized.  The result is that verifying, creating, renewing, and canceling tokens are all unnecessarily serialized.  The only operations should be serializ...
http://issues.apache.org/jira/browse/HADOOP-9930    Author: Daryn Sharp, 2013-09-06, 17:48
[HADOOP-9820] RPCv9 wire protocol is insufficient to support multiplexing - Hadoop - [issue]
...RPCv9 is intended to allow future support of multiplexing.  This requires all wire messages to be tagged with a RPC header so a demux can decode and route the messages accordingly.RPC p...
http://issues.apache.org/jira/browse/HADOOP-9820    Author: Daryn Sharp, 2013-08-27, 23:06
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