[IGNITE-13105] Spring data 2.0 IgniteRepositoryQuery#transformQueryCursor contains cursor leak

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 2.8.1
• Fix Version/s: 2.9
• Component/s: springdata
• Release Note: Fixed cursors leakage in RunningQueryManager when executing queries via spring-data repositories.
• Ignite Flags: Release Notes Required
• Assignee: Alexey Kuznetsov
• Reporter: Alexey Kuznetsov
• Created: 01/Jun/20 16:17
• Updated: 17/Jun/20 05:05
• Resolved: 05/Jun/20 15:27

Description

This code produce cursor leak in RunningQueryManager:
If result set contains one ore more rows.

                case ONE_VALUE:
                    Iterator<List> iter = qryIter.iterator();

                    if (iter.hasNext())
                        return iter.next().get(0);

                    return null;

Issue Links

• links to: GitHub Pull Request #7888