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[HADOOP-9748] Reduce blocking on UGI.ensureInitialized - Hadoop - [issue]
...EnsureInitialized is always sync'ed on the class, when it should only sync if it actually has to initialize....
http://issues.apache.org/jira/browse/HADOOP-9748    Author: Daryn Sharp, 2014-04-10, 01:55
[HADOOP-10301] AuthenticationFilter should return Forbidden for failed authentication - Hadoop - [issue]
...The hadoop-auth AuthenticationFilter returns a 401 Unauthorized without a WWW-Authenticate headers.  The is illegal per the HTTP RPC and causes a NPE in the HttpUrlConnection.This is ha...
http://issues.apache.org/jira/browse/HADOOP-10301    Author: Daryn Sharp, 2014-03-30, 15:07
[HADOOP-8014] ViewFileSystem does not correctly implement getDefaultBlockSize, getDefaultReplication, getContentSummary - Hadoop - [issue]
...ViewFileSystem incorrectly returns the FileSystem default values for getDefaultBlockSize() and getDefaultReplication().  This causes files to be created with incorrect values.  The...
http://issues.apache.org/jira/browse/HADOOP-8014    Author: Daryn Sharp, 2014-03-24, 23:43
[HADOOP-9956] RPC listener inefficiently assigns connections to readers - Hadoop - [issue]
...The socket listener and readers use a complex synchronization to update the reader's NIO Selector.  Updating active selectors is not thread-safe so precautions are required.However, the...
http://issues.apache.org/jira/browse/HADOOP-9956    Author: Daryn Sharp, 2014-03-12, 21:12
[HADOOP-10129] Distcp may succeed when it fails - Hadoop - [issue]
...Distcp uses IOUtils.cleanup to close its output streams w/o previously attempting to close the streams.  IOUtils.cleanup will swallow close or implicit flush on close exceptions.  ...
http://issues.apache.org/jira/browse/HADOOP-10129    Author: Daryn Sharp, 2014-02-24, 20:58
[HADOOP-7344] globStatus doesn't grok groupings with a slash - Hadoop - [issue]
...If a glob contains a grouping with a single item that contains a slash, ex. "{a/b}", then globStatus throws "Illegal file pattern: Unclosed group near index 2" – regardless of whether ...
http://issues.apache.org/jira/browse/HADOOP-7344    Author: Daryn Sharp, 2014-02-24, 20:58
[HADOOP-9698] RPCv9 client must honor server's SASL negotiate response - Hadoop - [issue]
...As of HADOOP-9421, a RPCv9 server will advertise its authentication methods.  This is meant to support features such as IP failover, better token selection, and interoperability in a he...
http://issues.apache.org/jira/browse/HADOOP-9698    Author: Daryn Sharp, 2014-01-28, 23:37
Re: HDFS Federation address performance issue - Hadoop - [mail # user]
...Hi Anfernee,You will achieve improved performance with federation only if you stripe files across the multiple NNs.  Federation basically shares DN storage with multiple NNs with the ex...
   Author: Daryn Sharp, 2014-01-28, 18:54
[HADOOP-9363] AuthenticatedURL will NPE if server closes connection - Hadoop - [issue]
...A NPE occurs if the server unexpectedly closes the connection for an AuthenticatedURL w/o sending a response....
http://issues.apache.org/jira/browse/HADOOP-9363    Author: Daryn Sharp, 2014-01-16, 19:30
[HADOOP-10233] RPC lacks output flow control - Hadoop - [issue]
...The RPC layer has input flow control via the callq, however it lacks any output flow control.  A handler will try to directly send the response.  If the full response is not sent t...
http://issues.apache.org/jira/browse/HADOOP-10233    Author: Daryn Sharp, 2014-01-14, 23:48
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