[IMPALA-5056] Impala fails to recover from statestore connection loss while waiting for metadata

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: Impala 2.8.0
• Fix Version/s: Impala 2.10.0
• Component/s: Catalog, Frontend
• Labels: supportability usability
• Target Version: Impala 2.9.0
• Assignee: Henry Robinson
• Reporter: Balazs Jeszenszky
• Created: 09/Mar/17 18:59
• Updated: 08/Jun/17 05:26
• Resolved: 08/Jun/17 05:26

Description

The following sequence:

describe t1;
shut down statestore
invalidate metadata t1;
***describe t1;
start ST

makes the marked query hang indefinitely. New queries will work, but this query will be stuck in the planning phase. Trying to cancel the query or open the details will bring down the web UI since it will wait for the lock the query is holding. The only way to kill off these queries is a restart.

Issue Links

• is related to: IMPALA-4772 Timeout for metadata loading from an impalad