[HIVE-17799] Add Ellipsis For Truncated Query In Hive Lock

• Type: Improvement
• Status: Closed
• Priority: Trivial
• Resolution: Fixed
• Affects Version/s: 3.0.0
• Fix Version/s: 3.0.0
• Component/s: Hive
• Flags: Patch
• Assignee: David Mollitor
• Reporter: David Mollitor
• Created: 13/Oct/17 14:29
• Updated: 22/May/18 23:14
• Resolved: 20/Oct/17 22:31

Description

HIVE-16334 introduced truncation for storing queries in ZK lock nodes. This Jira is to add ellipsis into the query to let the operator know that truncation has occurred and therefore they will not find the specific query in their logs, only a prefix match will work.

-- Truncation of query may be confusing to operator

-- Without truncation
SELECT * FROM TABLE WHERE COL=1

-- With truncation (operator will not find this query in workload)
SELECT * FROM TABLE

-- With truncation (operator will know this is only a prefix match)
SELECT * FROM TABLE...

Issue Links

• is related to: HIVE-16334 Query lock contains the query string, which can cause OOM on ZooKeeper