Hive on Spark and SparkSQL which should be better , and what are the key
characteristics and the advantages and the disadvantages between ?
guoqing0...@yahoo.com.hk
> Would the order of partition column in the where clause matter for
>performance?
No, unless you have more complex predicates than an AND.
There¹s one recent regression though -
https://issues.apache.org/jira/browse/HIVE-10122
Which release are you on?
> Also, how can I make sure that ³partiti
Hi,
I am wondering there is someone who encountered the same (or similar) problem
while usingHive and looking for a solution it.
I am running a daily batch to import data from mysql to hive by using beeline
and HS2.Yesterday, the job failed with errors that I havn't seen before.The
following is
I got a pretty straight forward multi-table join that constantly time out on
300 secs limit without any other error. The last several lines in the log are
as below, any hint what went wrong? From the log, it looks out failing on
loading "hashtable file from tmp file".
19 12:36:37,332 INFO [main
Your WHERE clause is returning 0 rows to the query. Either the filter
needs to be tweaked OR there is something wrong with your table.
Try doing a count on the table without filters to see if that works and
then maybe add filters in one by one to see where you lose results.
Abe
On Sat, May 16,
Hello,
Would the order of partition column in the where clause matter for
performance?
For eg: would there be any difference in performance in the below queries?
select a from table where part_column = ‘y’ and non_part_column = ‘z’
or
select a from table where non_part_column = ‘z’
Great thanks to the team, the release notes is impressive...
On Mon, May 18, 2015 at 11:25 PM, Sushanth Sowmyan
wrote:
>
> The Apache Hive team is proud to announce the the release of Apache Hive
> version 1.2.0.
>
> The Apache Hive (TM) data warehouse software facilitates querying and
> manag
