[FLINK-14717] JobExceptionsHandler show exceptions of prior attempts

• Type: Sub-task
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: Runtime / Web Frontend
• Assignee: Unassigned
• Reporter: lining
• Created: 12/Nov/19 08:34
• Updated: 23/Apr/21 13:54

Description

Current

The job's exceptions just show current attempt’s exceptions in web UI.(ps: code)

If the job failovers, we couldn't see any prior attempts' exceptions.

Proposal

We could use executionVertex.getPriorExecutionAttempt to get prior attempt in JobExceptionsHandler.

for (int i = task.getAttemptNumber() - 1; i >= 0; i--) {
  task = executionVertex.getPriorExecutionAttempt(i);
}