fix: delete old sst files when re-downloading sst files in full synchronization #2186
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…ronization (#2186) * bugfix fix rsync when request timeout
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…ronization (OpenAtomFoundation#2186) * bugfix fix rsync when request timeout
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…ronization (OpenAtomFoundation#2186) * bugfix fix rsync when request timeout
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When RsyncClient(https:/OpenAtomFoundation/pika/blob/unstable/src/rsync_client.cc) downloads a sst file in a master-slave replication, if the request times out more than the set number of times, it will retry downloading the entire file. Currently, the path used to delete temporary files is incorrect, resulting in deletion failure. When re-downloading, the old file is actually appended, which ultimately leads to an sst file mismatch with the manifest and a RocksDBiine open failure.
Chinese：
rsync主从复制下载sst文件时，如果请求超时超过设定的次数，会重试下载整个文件。目前的实现中删除临时文件时的路径不对，所以导致删除失败，重新下载的时候实际是在追加写老的文件，最终导致sst文件与manifest不匹配，rocksdb打开失败。