Yes, you are right. Just simply use checkpoint subtask_id -1 would find the 
corresponding task subtask_id.

Yun Tang
From: 杨东晓 <laolang...@gmail.com>
Sent: Friday, February 14, 2020 10:11
To: user <user@flink.apache.org>
Subject: The mapping relationship between Checkpoint subtask id and Task 
subtask id

Hi, I'm trying to figure out the different end2end duration for each subtask id 
in checkpoint.
In flink web ui I noticed  for job task subtask id it start from 0 and for 
checkpoint  subtask id it start from number 1,.
How can I find out which checkpoint subtask id belongs to which job task 
subtask id, just simply use checkpoint subtask ID -1 will be ok?

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