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Re: Issue with Hive and table with lots of column - Hive - [mail # user]
...With HIVE-3746, which will be included in hive-0.13, HiveServer2 takes lessmemory than before.Could you try it with the version in trunk?2014-02-13 10:49 GMT+09:00 Stephen Sprague : ...
   Author: Navis류승우, 2014-02-13, 02:11
Re: Hbase + Hive scan performance - Hive - [mail # user]
...HBase storage handler uses it's own InputFormat.So, hbase.client.scanner.caching (which is used in hbase.TableInputFormat)does not work. It might be configurable via HIVE-2906, something lik...
   Author: Navis류승우, 2014-02-11, 05:26
Re: External table reference subDirectories - Hive - [mail # user]
...It's supposed to be implemented afterhttps://issues.apache.org/jira/browse/HIVE-1662 would be checked in. Butit's not in progress for a year.Thanks,2014-02-06 John Meza :> A couple of sim...
   Author: Navis류승우, 2014-02-06, 02:01
Re: Map-side join memory limit is too low - Hive - [mail # user]
...try "set hive.mapred.local.mem=7000" or add it to hive-site.xml instead ofmodifying hive-env.shHADOOP_HEAPSIZE is not in use. Should fix documentation of it.Thanks,Navis2014-01-31 Avrilia Fl...
   Author: Navis류승우, 2014-02-03, 04:20
Re: Performance problem with HBase - Hive - [mail # user]
...1. current implementation of hbase handler cannot pushdown filter with'like' expression. You might rewrite the query some thing like "key >=00000000000000000010_0 AND key <= 0000000000...
   Author: Navis류승우, 2014-02-03, 01:13
Re: DESCRIBE EXTENDED show numRows=0 - Hive - [mail # user]
...Could you check the task log?For stat gathering, hive uses derby by default. If the jdbc driver forderby is not in auxlib, task cannot publish stats.2014-01-30 Stephen Sprague :> the answ...
   Author: Navis류승우, 2014-02-03, 00:44
Re: Recent test failures in pre-tests - Hive - [mail # dev]
...You're right, it might be other problem. I'm biased a little.Granted that it's not caused by hive-exec(failures are from quite simplequeries), It might be disk full or network problem. But i...
   Author: Navis류승우, 2014-01-28, 03:17
Re: Using Hive metastore as general purpose RDBMS - Hive - [mail # user]
...I've heard similar use cases from NCSoft(A big game company in Korea)platform team but they might use their own StorageHandler(and HiveStoragePredicateHandler) implementation.We might introd...
   Author: Navis류승우, 2014-01-27, 04:25
Re: Why hiveserver2 is much slower than hiveserver1? - Hive - [mail # user]
...HIVE-3746 modified IDL to handle nulls in more performant manner. (hiveserver1 does not handle nulls)  Thanks.    2013/11/6 B C  ...
   Author: Navis류승우, 2014-01-19, 06:43
Re: Pointing multiple external tables to the same location - Hive - [mail # user]
...I thinks it's back to original problem.  What you wanted is separated scan(task) for different view. But hive does not work like that. If two tables or views (or mix of them) has same l...
   Author: Navis류승우, 2014-01-16, 04:59
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