Repository: kudu Updated Branches: refs/heads/master b621f9c1a -> cfff4bb18
[DOCS] Added an info on creating a table in Impala with a custom replication factor Change-Id: If1c9ee97497dd62ccc8769428435ba6d5adddae9 Reviewed-on: http://gerrit.cloudera.org:8080/10411 Tested-by: Kudu Jenkins Reviewed-by: Mike Percy <mpe...@apache.org> Project: http://git-wip-us.apache.org/repos/asf/kudu/repo Commit: http://git-wip-us.apache.org/repos/asf/kudu/commit/cfff4bb1 Tree: http://git-wip-us.apache.org/repos/asf/kudu/tree/cfff4bb1 Diff: http://git-wip-us.apache.org/repos/asf/kudu/diff/cfff4bb1 Branch: refs/heads/master Commit: cfff4bb180d3ef73725f9ae7bb46321ce1179f29 Parents: b621f9c Author: Alex Rodoni <arod...@cloudera.com> Authored: Tue May 15 11:46:22 2018 -0700 Committer: Mike Percy <mpe...@apache.org> Committed: Thu May 17 21:30:31 2018 +0000 ---------------------------------------------------------------------- docs/kudu_impala_integration.adoc | 15 +++++++++++++++ 1 file changed, 15 insertions(+) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/kudu/blob/cfff4bb1/docs/kudu_impala_integration.adoc ---------------------------------------------------------------------- diff --git a/docs/kudu_impala_integration.adoc b/docs/kudu_impala_integration.adoc index 2b2f3ec..f7768ee 100755 --- a/docs/kudu_impala_integration.adoc +++ b/docs/kudu_impala_integration.adoc @@ -143,6 +143,21 @@ See <<partitioning_tables>>. The table creation example above is distributed int 16 partitions by hashing the `id` column, for simplicity. See <<partitioning_rules_of_thumb>> for guidelines on partitioning. +By default, Kudu tables created through Impala use a tablet replication factor of 3. +To specify the replication factor for a Kudu table, add a `TBLPROPERTIES` clause +to the `CREATE TABLE` statement as shown below where n is the replication factor +you want to use: + +[source,sql] +---- +TBLPROPERTIES ('kudu.num_tablet_replicas' = 'n') +---- + +A replication factor must be an odd number. + +Changing the `kudu.num_tablet_replicas` table property using ALTER TABLE currently +has no effect. + ==== `CREATE TABLE AS SELECT` You can create a table by querying any other table or tables in Impala, using a `CREATE
