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Re: Spark vs Tez - Hadoop - [mail # user]
...scala is not an interpreted language, from my non authoritative view itseems to have 2-3 (thousand) more compile phases than java and as a resultsome of the things you are doing that look li...
   Author: Edward Capriolo, 2014-10-21, 16:06
Re: High performance Count Distinct - NO Error - Hadoop - [mail # user]
...A simple and parallel way to do this is by breaking the data into ranges orhashes then do distinct counting on those. Hive should do something likethis automatically.This is a rather naive w...
   Author: Edward Capriolo, 2014-08-06, 21:52
[HADOOP-6102] Job tracker Start time displays the wrong month - Hadoop - [issue]
...The web interface for job history is not correct. 50030/jobhistory.jspnyhadoop2 Wed May 27 14:25:00 EDT 2009 job_200905271425_0004 select distinct(clientip) from logger ecaprioloThis is show...
http://issues.apache.org/jira/browse/HADOOP-6102    Author: Edward Capriolo, 2014-07-23, 18:17
[expand - 3 more] - Re: Skippin those gost darn 0 byte diles - Hadoop - [mail # user]
...Anyway, a solution (seen in Flume if I remember correctly) is having a goodfile name strategy. For exemple, all new files should end in ".open" andonly when they are finished the suffix is r...
   Author: Edward Capriolo, 2014-07-23, 15:15
[HADOOP-4594] Monitoring Scripts for Nagios - Hadoop - [issue]
...I would like to create a set of local via NRPE and remote check scripts that can be shipped with the hadoop distribution and used to monitor Hadoop. I already have completed the NRPE scripts...
http://issues.apache.org/jira/browse/HADOOP-4594    Author: Edward Capriolo, 2014-07-21, 17:51
Re: Merging small files - Hadoop - [mail # user]
...Don't have time to read the thread, but incase it has not been mentioned....Unleash filecrusher!https://github.com/edwardcapriolo/filecrushOn Sun, Jul 20, 2014 at 4:47 AM, Kilaru, Sambaiah &...
   Author: Edward Capriolo, 2014-07-20, 15:07
Re: Problem with simple-yarn-app - Hadoop - [mail # user]
...Last I checked. It has been broken for a while.API changes as well as issues with IPV4/IPv6 addressing required me toforce localhost in some hadoop configuration files.Here is something rela...
   Author: Edward Capriolo, 2014-06-02, 00:02
Re: SIMPLE authentication is not enabled. Available:[TOKEN] - Hadoop - [mail # user]
...There was a bug around this message that was fixed. I found another bug Iforgot to report. If your system is using ipv6 yarn get get confused overthe source/destination ips and throw this me...
   Author: Edward Capriolo, 2014-03-15, 21:19
Re: Impact of Tez/Spark to MapReduce - Hadoop - [mail # user]
...The thing about yarn is you chose what is right for the the workload.For example: Spark may not the right choice if for example join tables donot fit in memory.On Wednesday, March 5, 2014, A...
   Author: Edward Capriolo, 2014-03-06, 01:03
[HADOOP-5848] JMX Metrics For TaskTracker - Hadoop - [issue]
...Create useful metrics for the TaskTracker Component. TasksStarted: Counter TasksFailed: CounterIf graphed, having these metrics will help administrators determine graphically how task load ...
http://issues.apache.org/jira/browse/HADOOP-5848    Author: Edward Capriolo, 2013-07-12, 03:58
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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