About venkatsambath

venkatsambath · ‎04-08-2019

yes you have to upgrade to cdh6.1.0 or higher to use impala-3.1.0 - Its not possible to selectively upgrade impala alone https://www.cloudera.com/documentation/enterprise/6/release-notes/topics/rg_cdh_61_packaging.html

venkatsambath · ‎02-12-2019

What exact command you used for impala-shell? Can you try impala-shell -i <haproxy-host> and let us know if it works. Also do you have any overrides in hue.ini, hue_safety_valve.ini hue_safety_valve_server.ini If yes what values are under [impala] tag? Also Is there any reason behind having ELB and also Haproxy?

Andrew_Sherman · ‎02-08-2019

Hi Yasmin, there's not much information there but it does sound like your HS2 can't connect to the HMS. If you didn't fix the space issues for HMS then maybe HMS isn't running well. You may find useful information in the HMS logs -Andrew

Selu · ‎11-19-2018

Is there a workaround for this as we are on Impala version 2.8.0. We are always stuck with compute incremental stats queries that need tobe manually cancelled?

Bijjjur · ‎09-05-2018

I am having the same issue..using c3p0 pool if i retry it works any sample code of connection pooling

ChandeepS · ‎09-28-2017

As an alternative, you could enable LDAP for Impala and then connect to the slaves directly thus bypassing Kerberos and the load balancer.

mszurap · ‎04-13-2017

Since CDH 5.8 you can use set PARQUET_FALLBACK_SCHEMA_RESOLUTION=1; to look up columns within Parquet files by column name. For more, see: https://www.cloudera.com/documentation/enterprise/latest/topics/impala_parquet_fallback_schema_resolution.html

alex.behm · ‎01-20-2017

Thanks!

smt78100 · ‎10-25-2016

There's a Hive Gateway on each node.

venkatsambath · ‎03-30-2016

Hi, Encryption at rest is used for protecting your data from an unauthorized user who has no read permission in hdfs or has no access to cluster and is trying to read it from the disk directly. In your example the directory /tmp/user1zone1 has read access for all cluster users and hence user2 is allowed to read from it. drwxr-xr-x - user1 supergroup 0 2016-02-10 02:42 /tmp/user1zone1

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