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[ACCUMULO-3871] run integration tests as a map/reduce job - Accumulo - [issue]
...When the functional tests were moved to java, we lost the ability to run the tests via map/reduce.  It would be nice to run the ITs in under 2 hours. and take advantage of an entire clu...
http://issues.apache.org/jira/browse/ACCUMULO-3871    Author: Eric Newton, 2015-06-01, 21:47
[ACCUMULO-3423] speed up WAL roll-overs - Accumulo - [issue]
...After reading the proposal on HBASE-10278, I realized there are many ways to make the Accumulo WAL roll-over faster. Open two WALogs, but use only one until it reaches the WALog roll-over si...
http://issues.apache.org/jira/browse/ACCUMULO-3423    Author: Eric Newton, 2015-06-01, 18:37
[ACCUMULO-2480] ha fail-failover failure - Accumulo - [issue]
...Ran service network stop on the active NN.  The service failed to switch over since the fencing script on the standby failed to run (sshfence).After the network interface was re-establi...
http://issues.apache.org/jira/browse/ACCUMULO-2480    Author: Eric Newton, 2015-05-28, 21:06
[ACCUMULO-2673] Random walk balance check is still failing too frequently - Accumulo - [issue]
...While running 17 randomwalk test walkers, several of them failed in under an hour due to balance check failures.  These were intermediate issues.  Perhaps the test for balance shou...
http://issues.apache.org/jira/browse/ACCUMULO-2673    Author: Eric Newton, 2015-05-28, 20:54
[ACCUMULO-3372] deadlock in tserver - Accumulo - [issue]
...Client was requesting table configuration, which locks a hash map at ServerConfigurationFactory.java:155, and that proceeds to try and get a lock on the ServerConfiguration class (ServerConf...
http://issues.apache.org/jira/browse/ACCUMULO-3372    Author: Eric Newton, 2015-05-28, 17:58
[ACCUMULO-3684] balance going too slow - Accumulo - [issue]
...While testing a new balancer on a large cluster, performing a large number of migrations appears to have been going slowly (20 minutes to migrate 10K tablets). Since this balancer requires s...
http://issues.apache.org/jira/browse/ACCUMULO-3684    Author: Eric Newton, 2015-05-27, 23:55
[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, 2015-05-27, 20:38
[ACCUMULO-1426] old links in documentation - Accumulo - [issue]
...Some links (like WholeRowIterator) link to deprecated versions of classes....
http://issues.apache.org/jira/browse/ACCUMULO-1426    Author: Eric Newton, 2015-05-27, 18:48
Re: Accumulo Cluster Sizing - Accumulo - [mail # user]
...You can get decent ingest concurrency when the number of tablets per serveris between 20 and 80.There are so many knobs to adjust this performance, it's hard to give asimple answer. 0-1 tabl...
   Author: Eric Newton, 2015-05-27, 15:22
[ACCUMULO-2757] millions of zookeeper watches - Accumulo - [issue]
...I recently learned how to get the number of watches in a zookeeper node.$ echo wchp | nc localhost 2181There are a surprising number of watches supporting table configuration.  A single...
http://issues.apache.org/jira/browse/ACCUMULO-2757    Author: Eric Newton, 2015-05-26, 14:38
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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