[Bug] when backup job cancelled, it will retain snapshotinfos and backupmeta which take a lot of memory #32645
Description
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- I had searched in the issues and found no similar issues.
Version
master/2.0/1.2
What's Wrong?
备份任务，因为中间出错导致任务cancel，但是任务相关的snapshotinfos和backupmeta两个变量的信息没有释放，导致内存占用较高，最终导致fe oom。
What You Expected?
像任务正常结束一样，释放掉相关变量，释放内存占用
How to Reproduce?
No response
Anything Else?
No response
Are you willing to submit PR?
- Yes I am willing to submit a PR!
Code of Conduct
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