kangpinghuang opened a new issue #837: Meta should check the final status when iterator the rocksdb URL: https://github.com/apache/incubator-doris/issues/837 **Describe the bug** Iterator::status() returns the error of the iterating. The errors include I/O errors, checksum mismatch, unsupported operations, internal errors, or other errors. If there is no error, the status is Status::OK(). If the status is not OK, the iterator will be invalidated too. In another word, if Iterator::Valid() is true, status() is guaranteed to be OK() so it's safe to proceed other operations without checking status(): Now in OlapMeta, this has not be checked
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