MongoDB 由于缺少 collection*.wt 文件而崩溃

Question

SO 和其他论坛上也有类似的帖子，但是我的问题似乎有所不同，因为我可以启动 mongod 并成功读取它。在 mongosh 终端中运行命令“show dbs”时，它会返回一个错误：

MongoServerError: unable to open cursor at URI statistics:table:collection-124-8620454490016200065. reason: No such file or directory

此外，当尝试将大量数据写入数据库时​​，mongod 服务本身会由于缺少 .wt 文件而崩溃。 mongod.log 文件显示：

{"t":{"$date":"2022-02-28T12:11:51.031+05:30"},"s":"E",  "c":"STORAGE",  "id":22435,   "ctx":"conn26124","msg":"WiredTiger error","attr":{"error":2,"message":"[1646030511:31871][2824:0x7f3c0e85e700], file:collection-102-8620454490016200065.wt, WT_SESSION.open_cursor: __posix_open_file, 805: /var/lib/mongo/collection-102-8620454490016200065.wt: handle-open: open: No such file or directory"}}
{"t":{"$date":"2022-02-28T12:11:51.036+05:30"},"s":"F",  "c":"STORAGE",  "id":50883,   "ctx":"conn26124","msg":"Cursor not found","attr":{"error":{"code":43,"codeName":"CursorNotFound","errmsg":"Failed to open a WiredTiger cursor. Reason: UnknownError: 2: No such file or directory, uri: table:collection-102-8620454490016200065, config: "}}}
{"t":{"$date":"2022-02-28T12:11:51.037+05:30"},"s":"F",  "c":"-",        "id":23091,   "ctx":"conn26124","msg":"Fatal assertion","attr":{"msgid":50883,"file":"src/mongo/db/storage/wiredtiger/wiredtiger_cursor.cpp","line":72}}
{"t":{"$date":"2022-02-28T12:11:51.037+05:30"},"s":"F",  "c":"-",        "id":23092,   "ctx":"conn26124","msg":"\n\n***aborting after fassert() failure\n\n"}

我假设数据库中缺少一个集合。我没有办法验证这一点。任何损坏的数据丢失都不是问题。只需要让数据库再次工作即可。

更新：正如评论中所建议的， mongod --dbpath /data/db --repair 按预期工作。尽管看起来其中一个数据库丢失了一些集合。备份的好提醒！