[IGNITE-14015] Tracing SQL: tracing of SELECT queries causes incorrect span inheritance

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Fix Version/s: 2.10
• Ignite Flags: Docs Required, Release Notes Required
• Assignee: Mikhail Petrov
• Reporter: Mikhail Petrov
• Created: 18/Jan/21 17:57
• Updated: 23/Jan/21 19:13
• Resolved: 19/Jan/21 12:25

Description

Execution of SELECT queries with tracing enabled leaves span related to this query in MTC#span variable for user thread. So the trace of next operation from the user thread will be inherited from span related to previous query execution. We must clear MTC#span thread local variable after query execution ends.

Issue Links

• links to: GitHub Pull Request #8675