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[ACCUMULO-3727] FileNotFoundException on failed/data during recovery - Accumulo - [issue]
...Over night there was a mass failure of Accumulo (most likely due to too many mappers for a job). After restarting Accumulo, one of the metadata tablets failed to load. There was a log messag...
http://issues.apache.org/jira/browse/ACCUMULO-3727    Author: William Slacum , 2017-10-30, 13:08
[ACCUMULO-4348] Deprecate KerberosToken constructor that exposes UserGroupInformation - Accumulo - [issue]
...KerberosToken works by setting up some metadata about a current user to be validated later by when a UGIAssumingTransport is created. The public KerberosToken(String principal, File keytab, ...
http://issues.apache.org/jira/browse/ACCUMULO-4348    Author: William Slacum , 2017-10-27, 15:50
[ACCUMULO-4156] Tunable replication frequency - Accumulo - [issue]
...Currently, replication happens when a write ahead log file is closed. The only parameter to toggle when this event occurs is write ahead log size, and is only applicable to the tablet server...
http://issues.apache.org/jira/browse/ACCUMULO-4156    Author: William Slacum , 2017-02-16, 21:06
[ACCUMULO-2915] Avoid copying all Mutations when using a TabletServerBatchWriter - Accumulo - [issue]
...Currently in the TabletServerBatchWriter, the following behavior is exhibited:    // create a copy of mutation so that after this method returns the user    // is free to...
http://issues.apache.org/jira/browse/ACCUMULO-2915    Author: William Slacum , 2016-08-24, 22:34
[ACCUMULO-4306] Support Kerberos authentication terminating at Accumulo - Accumulo - [issue]
...We currently support Kerberos authentication via SASL+GSSAPI. Due to an implementation detail, turning it on requires also enabling Kerberos for HDFS.This ticket proposes changing the implem...
http://issues.apache.org/jira/browse/ACCUMULO-4306    Author: William Slacum , 2016-08-24, 22:33
Making a RowCounterIterator - Accumulo - [mail # user]
...The iterator in the gist also counts cells/entries/KV pairs, not uniquerows. You'll want to have some way to skip to the next row value if youwant the count to be reflective of the number of...
   Author: William Slacum , 2016-07-15, 20:02
Unable to import RFile produced by AccumuloFileOutputFormat - Accumulo - [mail # user]
...I wonder if the file isn't being decrypted properly. I don't see why itwould write out incompatible file versions.On Fri, Jul 8, 2016 at 3:02 PM, Josh Elser  wrote:...
   Author: William Slacum , 2016-07-08, 19:05
java.lang.NoClassDefFoundError with fields of custom Filter - Accumulo - [mail # user]
...You could also shade/relocate dependency classes within the uber/fat jar.It has pitfalls but it is very easy to set up.On Thursday, July 7, 2016, Massimilian Mattetti  wrote:...
   Author: William Slacum , 2016-07-07, 18:25
[expand - 1 more] - [DISCUSS] Proposed binary packaging changes - Accumulo - [mail # dev]
...Yeah, I wasn't really suggesting it as a course of action. It was more of amental exercise so I could grasp the issue better.On Fri, Jul 1, 2016 at 12:13 PM, Christopher  wrote:...
   Author: William Slacum , 2016-07-01, 19:46
Apache Accumulo integrated with Presto - Accumulo - [mail # dev]
...I think the generic hash-join strategy is, for some small set A, we cansend the whole set to partitions of a larger set B and do the join inparallel. In this case, whichever is the smaller s...
   Author: William Slacum , 2016-06-13, 20:09