[Bug] Error for close_wait() is lost for data loading

[pengxiangyu]

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• I had searched in the issues and found no similar issues.

Version

0.15.09

What's Wrong?

In function close_wait() of delta_writer.cpp, if _flush_token->wait() return an error, it will not be returned to front.
Because in PInternalServiceImpl::tablet_writer_add_batch, _exec_env->load_channel_mgr()->add_batch(*request, response); will not return an error, but only return error_tablets. However error_tablets in close_wait() is not returned.

What You Expected?

close_wait() will return error tablets when error returned.

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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