[HAWQ-1282] Shared Input Scan may result in endless loop.

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.1.0.0-incubating
• Component/s: Core
• Assignee: Hubert Zhang
• Reporter: Hubert Zhang
• Created: 19/Jan/17 05:57
• Updated: 23/Feb/17 05:25
• Resolved: 22/Jan/17 02:16

Description

There are residual process after running some queries. Through the call stack, we find that there is an endless loop in function writer_wait_for_acks() in shared input scan.
We plan to add max retry times to avoid this problem.
Also, there are some file handler leaks in retry_read() and retry_write() of shared input scan.

Issue Links

• relates to: HAWQ-1342 QE process hang in shared input scan on segment node
• links to: GitHub Pull Request #1096