[PHOENIX-5296] Ensure store file reader refcount is zero at end of relevant unit tests

• Type: Test
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 5.1.0, 4.16.0
• Labels: phoenix-hardening
• Assignee: Viraj Jasani
• Reporter: Andrew Kyle Purtell
• Created: 23/May/19 18:07
• Updated: 28/Jan/21 05:59
• Resolved: 27/Jan/21 08:35

Description

Unit and integration tests for functional areas where the implementation wraps scanners and uses a delegate pattern should check at the end of the test that no scanners were leaked (check that all scanners including the inner scanners were properly closed) by testing that the store reader reference count is zero on all stores.

HBASE-22459 will offer a new metric and API which exposes this information.

Issue Links

• is related to: HBASE-22460 Reopen a region if store reader references may have leaked
• is related to: HBASE-22459 Expose store reader reference count
• relates to: PHOENIX-5291 Ensure that Phoenix coprocessor close all scanners.
• links to: GitHub Pull Request #1096
• links to: GitHub Pull Request #1097