file is too small (0 bytes) (resource=BufferedChecksumIndexInput

"type": "corrupt_index_exception", "reason": "failed engine (reason: [refresh failed]) (resource=preexisting_corruption)", "caused_by": { "type": "i_o_exception", "reason": "failed engine (reason: [refresh failed])",compound sub-files must have a valid codec header and footer: file is too small (0 bytes) (resource=BufferedChecksumIndexInput(MMapIndexInput(path=\".../index/_1ym.fdx\")))" 最近出现好多次这样的问题，
检查确实索引有0 字节的情况， 不知道为何索引没有写进去。索引无法恢复
这个问题不好找原因