question Re: Do table statistics get replicated as part of hive BDR replication in Support Questions

Do table statistics get replicated as part of hive BDR replication

Daggers — Fri, 16 Sep 2022 14:30:29 GMT

Do table statistics get replicated as part of hive BDR replication ?

Re: Do table statistics get replicated as part of hive BDR replication

lwang — Tue, 16 Jul 2019 18:27:35 GMT

Hi @Daggers ,

Based on the public doc here:

https://www.cloudera.com/documentation/enterprise/release-notes/topics/cm_rn_new_changed_features.html

It says:

Table and partition-level column statistics stored in the Hive metastore and used by Impala are now replicated during Hive Replication. This is supported between a replication source with Cloudera Manager running version 5.10 or higher and a replication target running Cloudera Manager 5.10 or higher. Because this change replicates more information, the same schedule may take more time to complete if column statistics are present.

Thanks and hope this helps.

Re: Do table statistics get replicated as part of hive BDR replication

DNADatangineer — Fri, 04 Nov 2022 11:54:16 GMT

Hi!

Do you know the steps how to disable the replication of table table column statistics since it's effect the performance while we run the BDR?

Re: Do table statistics get replicated as part of hive BDR replication

DianaTorres — Fri, 04 Nov 2022 16:06:21 GMT

@DNADatangineer As this is an older post, you would have a better chance of receiving a resolution by starting a new thread. This will also be an opportunity to provide details specific to your environment that could aid others in assisting you with a more accurate answer to your question. You can link this thread as a reference in your new post.