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Re: Merging small files with dynamic partitions - Hive - [mail # user]
...The output file shows it only have 2 jobs (the mapreduce job and the move t ask). This indicates that the plan does not have merge enabled. Merge shoul d consists of a ConditionalTask and 2 ...
   Author: Ning Zhang, 2010-10-16, 00:58
Re: Multiple insert statement and levels of aggregation - Hive - [mail # user]
...In the multi-insert statement, you cannot put another FROM clause. What you  can do is to put both UDTF in the FROM clause:  FROM foo lateral view someUDTF(foo.a) as t1_a lateral v...
   Author: Ning Zhang, 2010-10-15, 18:17
[expand - 1 more] - Re: Help with last 30 day unique user query - Hive - [mail # user]
...Sorry I don't understand your question. I thought you were referring to the  lack of DATE type in Hive. HiveQL has the similar syntax with SQL like cou nt(distinct col). Your regular SQ...
   Author: Ning Zhang, 2010-10-15, 17:18
[HIVE-1669] non-deterministic display of storage parameter in test - Hive - [issue]
...With the change to beautify the 'desc extended table', the storage parameters are displayed in non-deterministic manner (since its implementation is HashMap)....
http://issues.apache.org/jira/browse/HIVE-1669    Author: Ning Zhang, 2010-10-13, 04:29
[expand - 1 more] - Re: Runtime exception while running Hive - Hive - [mail # user]
...Yes, Hive 0.5 is compatible with Hadoop 0.20.0. It is also compatible to pr evious versions to, but Hadoop 0.20 is recommended since it is mo re stable and supports more functional...
   Author: Ning Zhang, 2010-10-05, 20:54
Re: wrong number of records loaded to a table is returned by Hive - Hive - [mail # user]
...Ping, this is a known issue. The number reported at the end of INSERT OVERW RITE is obtained by means of Hadoop counters, which is not very reliable an d subject to inaccuracy due to failed ...
   Author: Ning Zhang, 2010-10-01, 17:45
Re: dynamic partition query dies with LeaseExpiredException - Hive - [mail # user]
...Hi Dave,  There may be 2 issues here:  1) according to the HDFS JIRA it seems to be a bug introduced in Hadoop 0. 18 and was fixed by another hadoop JIRA in 0.20.2 suggested by Hai...
   Author: Ning Zhang, 2010-10-01, 16:24
[expand - 1 more] - Re: Create table as select fails with error "Error in metadata: org.apache.thrift.TApplicationException" - Hive - [mail # user]
...If your success rate is increased by increasing hive.metastore.connect.retr ies, mostly likely your Thrift server is too busy to get connected. Can you  check your /tmp//hive.log in you...
   Author: Ning Zhang, 2010-10-01, 06:54
Re: Json serde path issue - Hive - [mail # user]
...jsonserde was added by Amazone EMR and has not been open sourced to Apache  yet as far as I know. I don't know if EMR folks are on this list, but you h ave a better chance of getting an...
   Author: Ning Zhang, 2010-09-30, 17:15
Re: compiling hive trunk - Hive - [mail # user]
...datanecleus was upgraded recently. Can you try 'ant clean package'.  Ning  On Sep 30, 2010, at 9:43 AM, Ted Yu wrote:  DataNucleus.Enhancer). rly. anucleus.store.rdbms" is alr...
   Author: Ning Zhang, 2010-09-30, 17:11
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