[CASSANDRA-15126] Resource leak when queries apply a RowFilter

• Type: Bug
• Status: Resolved
• Priority: Normal
• Resolution: Fixed
• Fix Version/s: 3.0.19
• Component/s: CQL/Interpreter
• Bug Category: Degradation - Resource Management
• Severity: Normal
• Complexity: Low Hanging Fruit
• Discovered By: User Report
• Platform: All
• Since Version: 3.0.5

Source Control Link

c07f3c88a4ba164bf01b0450b2463746b40c0d48

Test and Documentation Plan

unit test included in patch

• Assignee: Benedict Elliott Smith
• Reporter: Benedict Elliott Smith

Authors

Benedict Elliott Smith

Reviewers

Aleksey Yeschenko, Sam Tunnicliffe

• Created: 14/May/19 10:05
• Updated: 15/May/19 14:30
• Resolved: 14/May/19 14:49

Description

RowFilter.CQLFilter optionally removes those partitions that have no matching results, but fails to close the iterator representing that partition’s unfiltered results, leaking resources when this happens.

Issue Links

• is broken by: CASSANDRA-6377 ALLOW FILTERING should allow seq scan filtering
• relates to: CASSANDRA-13050 ReadCommand.CheckForAbort not monitoring CQL rows for range queries