[CARBONDATA-1787] Updated data-management-on-carbondata.md for GLOBAL_SORT_PARTITIONS
This closes #1668 Project: http://git-wip-us.apache.org/repos/asf/carbondata/repo Commit: http://git-wip-us.apache.org/repos/asf/carbondata/commit/ca466d9f Tree: http://git-wip-us.apache.org/repos/asf/carbondata/tree/ca466d9f Diff: http://git-wip-us.apache.org/repos/asf/carbondata/diff/ca466d9f Branch: refs/heads/carbonstore Commit: ca466d9f4b07db1a088dc62cebaf6b4733c28a9b Parents: dc4f87b Author: vandana <vandana.yadav...@gmail.com> Authored: Fri Dec 15 18:16:05 2017 +0530 Committer: Jacky Li <jacky.li...@qq.com> Committed: Tue Jun 19 00:34:39 2018 +0800 ---------------------------------------------------------------------- docs/data-management-on-carbondata.md | 10 ++++++++++ 1 file changed, 10 insertions(+) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/carbondata/blob/ca466d9f/docs/data-management-on-carbondata.md ---------------------------------------------------------------------- diff --git a/docs/data-management-on-carbondata.md b/docs/data-management-on-carbondata.md index 3326e9b..7e171aa 100644 --- a/docs/data-management-on-carbondata.md +++ b/docs/data-management-on-carbondata.md @@ -560,6 +560,16 @@ This tutorial is going to introduce all commands and data operations on CarbonDa 'BAD_RECORDS_ACTION'='REDIRECT','IS_EMPTY_DATA_BAD_RECORD'='false') ``` + - **GLOBAL_SORT_PARTITIONS:** If the SORT_SCOPE is defined as GLOBAL_SORT, then user can specify the number of partitions to use while shuffling data for sort using GLOBAL_SORT_PARTITIONS. If it is not configured, or configured less than 1, then it uses the number of map task as reduce task. It is recommended that each reduce task deal with 512MB-1GB data. + + ``` + OPTIONS('GLOBAL_SORT_PARTITIONS'='2') + ``` + + NOTE: + * GLOBAL_SORT_PARTITIONS should be Integer type, the range is [1,Integer.MaxValue]. + * It is only used when the SORT_SCOPE is GLOBAL_SORT. + ### INSERT DATA INTO CARBONDATA TABLE This command inserts data into a CarbonData table, it is defined as a combination of two queries Insert and Select query respectively.