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[HIVE-11544] LazyInteger should avoid throwing NumberFormatException - Hive - [issue]
...LazyInteger#parseInt will throw a NumberFormatException under these conditions: bytes are null radix is invalid length is 0 the string is '+' or '-' LazyInteger#parse throws a NumberFormatEx...
http://issues.apache.org/jira/browse/HIVE-11544    Author: William Slacum, 2015-08-28, 14:37
Re: HBase and Accumulo - HBase - [mail # dev]
...If you drew a Venn diagram of HBase features compared to Accumulo features,it's pretty much going to be a single circle.If you want performance anecdotes, the most succinct summary I've seen...
   Author: William Slacum, 2015-08-19, 18:41
[expand - 1 more] - Re: Custom comparator when using Kryo serializer for MapReduce serialization - Hadoop - [mail # user]
...In a general sense, if you can guarantee that your objects serialize inlexicographical order, then you should be able to do a comparator on theraw bytes themselves without any interpretation...
   Author: William Slacum, 2015-08-19, 17:06
Re: Question about configuring the linux niceness of tablet servers? - Accumulo - [mail # user]
...By "Hadoop" do you mean a Yarn NodeManager process?On Mon, Aug 17, 2015 at 4:21 PM, Jeff Kubina  wrote: ...
   Author: William Slacum, 2015-08-17, 21:33
FairScheduler + single resource policy - Hadoop - [mail # user]
...Hi all,I'm using Hadoop 2.6.0 after upgrading from Hadoop 2.2.0. Previously, Ididn't mess with any vcore settings as we weren't doing anything specialwith containers and it seemed happy enou...
   Author: William Slacum, 2015-08-17, 20:48
[HIVE-11545] HiveInputFormat#pushProjectionsAndFilters modifies JobConf, which is ignored - Hive - [issue]
...I was debugging an issue where Tez was running a simple query of the form select count from table where x = y. x is a partition column, stats and cbo were disabled, and the table was backed ...
http://issues.apache.org/jira/browse/HIVE-11545    Author: William Slacum, 2015-08-13, 04:28
[expand - 1 more] - Hive on Tez much slower than MR - Hive - [mail # user]
...Hi all,I'm using Hive 0.14, Tez 0.5.2, and Hadoop 2.6.0.I have a very simple query of the form `select count(*) from my_table wherex > 0 and x < 1500`.The table has ~50 columns in it a...
   Author: William Slacum, 2015-08-05, 20:48
[expand - 2 more] - Origin of hive.auto.convert.sortmerge.join.noconditionaltask - Hive - [mail # user]
...Hi all,I've had some questions from users regarding setting`hive.auto.convert.sortmerge.join.noconditionaltask`. I see, in somedocumentation from users and vendors, that it is recommended to...
   Author: William Slacum, 2015-08-04, 20:46
[expand - 1 more] - Re: How to control Minor Compaction by programming - Accumulo - [mail # user]
...Seehttp://accumulo.apache.org/1.5/apidocs/org/apache/accumulo/core/client/admin/TableOperations.html#flush%28java.lang.String,%20org.apache.hadoop.io.Text,%20org.apache.hadoop.io.Text,%20boo...
   Author: William Slacum, 2015-07-31, 00:10
Installing on 300+ nodes with Ambari 1.7 - Ambari - [mail # user]
...Hi All,I'm trying to install a hadoop distro via Ambari 1.7 on ~300 nodes. When itcomes time to install all of the services, things get weird (for lack of abetter term). I've noticed the UI ...
   Author: William Slacum, 2015-07-30, 20:25
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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