[DRILL-2697] Pause injections should pause indefinitely until signalled

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.9.0
• Fix Version/s: 1.0.0
• Component/s: Execution - Flow
• Assignee: Chun Chang
• Reporter: Sudheesh Katkam
• Created: 06/Apr/15 18:41
• Updated: 17/Jul/15 22:08
• Resolved: 17/Jul/15 22:08

Description

Currently injected pauses make threads sleep for a specified time. This can be an enhanced to stop the thread indefinitely using a CountDownLatch. It is quite similar to how cancellation works.

Tasks:
(a) Add another message to RPC layer to signal paused remote threads to resume (through ControlHandler) by counting down. Complications if the thread has not reached the pause site yet.
(b) Add resume signal (like ctrl-c) to sqlline
(further enhancement: another signal to trigger pause from sqlline)

Issue Links

• is depended upon by: DRILL-2903 Update TestDrillbitResilience tests so that they correctly manage canceled queries that get to complete too quickly.