[HIVE-432] SORT BY is always sending data to only the first reducer even if there are multiple reducers - ASF JIRA

XML

Word

Printable

JSON

Details

Type: Bug
Status: Closed
Priority: Critical
Resolution: Fixed
Affects Version/s: None
Fix Version/s: 0.3.0
Component/s: Query Processor
Labels:
None

Hadoop Flags:

Reviewed

Description

When we generate the ReduceSInkOperator, the partition columns are empty, which means all the rows will get a hash value of 0, and they will all go to the first reducer.

In the meanwhile we are fixing this bug, please use "CLUSTER BY" instead of "SORT BY" so that the data will get distributed to multiple reducers.

Attachments

- Sort By Name
- Sort By Date
- Ascending
- Descending

HIVE-432.1.patch
19/Apr/09 09:47
2 kB
Zheng Shao

Activity

People

Assignee:: Zheng Shao

Reporter:: Zheng Shao

Votes:: 0 Vote for this issue

Watchers:: 3 Start watching this issue

Dates

Created:: 19/Apr/09 09:22

Updated:: 17/Dec/11 00:09

Resolved:: 20/Apr/09 19:44