Hi,
Could some one suggest how to create surrogate keys sequentially in hive ?
--
Thanks,
Kishore.
Hi,
I recommend you try using HiveServer2 and beeline as explained here:
https://cwiki.apache.org/confluence/display/Hive/GettingStarted#GettingStarted-RunningHiveServer2andBeeline.1
In particular, please make sure you have run "bin/schematool -dbType derby
-initSchema" and that it returned succe
It isn't possible to guarantee sequential keys because tasks run in
parallel. You can write a UDF to assign a unique id or sequential ids
within a task.
Alan.
On Tue, Nov 21, 2017 at 3:53 AM, kishore kumar
wrote:
> Hi,
>
> Could some one suggest how to create surrogate keys sequentially in hiv
Hi all,
Now, we are running the benchmark of Hive +Tez+LLAP and Apache Tez in TPC-DS
with 3TB orc data. But the result of Hive +Tez+LLAP is almost similar with
hive+Tez and some queries may be poorer than hive+tez .
The following is our cluster and llap configuration,
Cluster: 1 master + 7 slave
Hi,
> Please help us find whether we use the wrong configuration. Thanks for your
> help.
Since there are no details, I'm not sure what configuration you are discussing
here.
A first step would be to check if LLAP cache is actually being used (the LLAP
IO in the explain), vectorization is be
Hi Gopal,
Thanks for your reply.
> A first step would be to check if LLAP cache is actually being used (the LLAP
> IO in the explain), vectorization is being used (llap, vectorized for tasks),
> that the column stats show as COMPLETE (instead of NONE).
1. For the LLAP cache, we have enable the LL
Hello everyone:
Recently,I want to migrate hive cli to beeline，but i'm reffered to
cloudera official site about hive
beeline(https://www.cloudera.com/documentation/enterprise/5-8-x/topics/cdh_ig_hive_install.html#concept_alp_4kl_3q),
it describe that the beeline cli should use a heap siz
