[FLINK-33042] Allow trigger flamegraph when task is initializing

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.19.0
• Component/s: Runtime / REST, Runtime / Web Frontend
• Labels: pull-request-available
• Assignee: Rui Fan
• Reporter: Rui Fan
• Created: 06/Sep/23 07:43
• Updated: 09/Sep/23 13:54
• Resolved: 09/Sep/23 13:54

Description

Currently, the flamegraph can be triggered when task is running.

After FLINK-17012 and FLINK-22215, flink split the running to running and initializing. We should allow trigger flamegraph when task is initializing. For example, the initialization is very slow, we need to troubleshoot.

 

Here is a stack example, task is rebuilding the rocksdb after the parallelism is changed.

 

 

Issue Links

• links to: GitHub Pull Request #23372
• links to: PR