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    Fix IOError on WAL write doesn't propagate to write group follower · 3cf562be
    Yi Wu 提交于
    Summary:
    This is a simpler version of #3097 by removing all unrelated changes.
    
    Fixing the bug where concurrent writes may get Status::OK while it actually gets IOError on WAL write. This happens when multiple writes form a write batch group, and the leader get an IOError while writing to WAL. The leader failed to pass the error to followers in the group, and the followers end up returning Status::OK() while actually writing nothing. The bug only affect writes in a batch group. Future writes after the batch group will correctly return immediately with the IOError.
    Closes https://github.com/facebook/rocksdb/pull/3201
    
    Differential Revision: D6421644
    
    Pulled By: yiwu-arbug
    
    fbshipit-source-id: 1c2a455c5b73f6842423785eb8a9dbfbb191dc0e
    3cf562be
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