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[ACCUMULO-2247] random walk fails when server gets EOFException - Accumulo - [issue]
...Saw this stack set of errors tin the corresponding server:2014-01-23 19:19:18,020 [tserver.TabletServer] WARN : lookup failed for tablet !0;~<java.io.EOFException      ...
http://issues.apache.org/jira/browse/ACCUMULO-2247    Author: Eric Newton, 2014-11-19, 22:29
[ACCUMULO-898] look into replacing cloudtrace - Accumulo - [issue]
...HBase has created their own distributed tracing library, and today I bumped into zipkin.  zipkin has a reasonable visualization, and seems to work with thrift.  We should look into...
http://issues.apache.org/jira/browse/ACCUMULO-898    Author: Eric Newton, 2014-11-18, 22:02
[ACCUMULO-745] Use a CLI library consistently to parse parameters in all utilities. - Accumulo - [issue]
...In a few utilities, the command-line parsing is pretty lazy.  There's no usage, just an NPE if you don't provide all the magic options on the command-line.  In particular, Initiali...
http://issues.apache.org/jira/browse/ACCUMULO-745    Author: Eric Newton, 2014-11-14, 01:02
[ACCUMULO-3322] GC check message prints more frequently when freeMemory is growing - Accumulo - [issue]
...The gc debug log messages in the tserver are printed if: the gc time has changed the free memory has grownAs a consequence, the gc lines are printed more frequently when there is more memory...
http://issues.apache.org/jira/browse/ACCUMULO-3322    Author: Eric Newton, 2014-11-13, 18:17
[ACCUMULO-3327] tablet server re-reads the bulk loaded flags with every bulk import request - Accumulo - [issue]
...On a very large cluster, which bulk loads many thousands of files every few minutes, I noticed the servers would reload the bulk imported flags with every request.  This put a lot of pr...
http://issues.apache.org/jira/browse/ACCUMULO-3327    Author: Eric Newton, 2014-11-12, 19:17
[ACCUMULO-3326] WriteLotsIT fails with OOME - Accumulo - [issue]
...During nightly tests:2014-11-11 13:55:57,021 [tserver.TabletServer$ThriftClientHandler] ERROR: Java heap spacejava.lang.OutOfMemoryError: Java heap space        at o...
http://issues.apache.org/jira/browse/ACCUMULO-3326    Author: Eric Newton, 2014-11-12, 16:52
[ACCUMULO-3273] majc holding up tablet unloads? - Accumulo - [issue]
...While testing ACCUMULO-3263 on a large cluster, the table being randomized would not go offline.  Each of these servers was performing a major compaction of the tablets to be offlined. ...
http://issues.apache.org/jira/browse/ACCUMULO-3273    Author: Eric Newton, 2014-11-12, 16:10
[ACCUMULO-1085] make the number of threads for assignment configurable - Accumulo - [issue]
...Log recoveries from sorted logs take considerable time: run them in parallel with more assignment threads....
http://issues.apache.org/jira/browse/ACCUMULO-1085    Author: Eric Newton, 2014-11-10, 21:07
[ACCUMULO-3311] pair warning messages with relief messages - Accumulo - [issue]
...We have situations in which we log warning messages: Running low on memory Compaction seems to be hanging Connection blocked for 2 minutes etcThere's always some background thread checking t...
http://issues.apache.org/jira/browse/ACCUMULO-3311    Author: Eric Newton, 2014-11-09, 02:45
[ACCUMULO-3263] re-write tablet directories to fairly use multiple name-nodes - Accumulo - [issue]
...When upgrading a very large cluster from 1.5 to 1.6, users can add new NNs for additional scaling.  Unfortunately, all the current tablet directories will be on the original NN. Of cour...
http://issues.apache.org/jira/browse/ACCUMULO-3263    Author: Eric Newton, 2014-11-07, 17:34
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NEW: Monitor These Apps!
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