UCP: remove remove-meta config for task

[WangXiangUSTC]

Description

Is your feature request related to a problem? Please describe:

If set remove-meta: true in task's config file, it will always delete the meta information in the checkpoint table when starting/recovering the task. It is easy to misuse and delete the checkpoint, then the task will run as a new task.

Describe the feature you'd like:

• remove remove-meta config for task
• add another argument (like --remove-meta) for the start-task command
• or add a new command for dmctl to remove the meta information in checkpoint table, just like:

dmctl --master-addr "127.0.0.1:8261" --task-name test --remove-meta

Score

600

Mentor(s)

• @csuzhangxc

Contact the mentors: #tidb-challenge-program channel in TiDB Community Slack Workspace

Recommended Skills

• Golang
• Experience with DM

Learning Materials

• task configure
• DM source reading
• DM document

[csuzhangxc]

this has been done in #651.