【MongoDB】MongoDB启动报错"msg":"Failed to unlink socket file"

启动时报错：

# more mongod.log 
{"t":{"$date":"2022-06-19T12:43:29.495+08:00"},"s":"I",  "c":"CONTROL",  "id":23285,   "ctx":"main","msg":"Automatically disabling TLS 1.0, to force-enable TLS 1.0 specify --sslDisabledPro
tocols 'none'"}
{"t":{"$date":"2022-06-19T12:43:29.498+08:00"},"s":"W",  "c":"ASIO",     "id":22601,   "ctx":"main","msg":"No TransportLayer configured during NetworkInterface startup"}
{"t":{"$date":"2022-06-19T12:43:29.498+08:00"},"s":"I",  "c":"NETWORK",  "id":4648601, "ctx":"main","msg":"Implicit TCP FastOpen unavailable. If TCP FastOpen is required, set tcpFastOpenSe
rver, tcpFastOpenClient, and tcpFastOpenQueueSize."}
{"t":{"$date":"2022-06-19T12:43:29.498+08:00"},"s":"I",  "c":"STORAGE",  "id":4615611, "ctx":"initandlisten","msg":"MongoDB starting","attr":{"pid":4743,"port":27017,"dbPath":"/data/mongo_
data/data","architecture":"64-bit","host":"VM-16-12-centos"}}
{"t":{"$date":"2022-06-19T12:43:29.498+08:00"},"s":"I",  "c":"CONTROL",  "id":23403,   "ctx":"initandlisten","msg":"Build Info","attr":{"buildInfo":{"version":"4.4.14","gitVersion":"0b0843
af97c3ec9d2c0995152d96d2aad725aab7","openSSLVersion":"OpenSSL 1.0.1e-fips 11 Feb 2013","modules":[],"allocator":"tcmalloc","environment":{"distmod":"rhel70","distarch":"x86_64","target_arc
h":"x86_64"}}}}
{"t":{"$date":"2022-06-19T12:43:29.498+08:00"},"s":"I",  "c":"CONTROL",  "id":51765,   "ctx":"initandlisten","msg":"Operating System","attr":{"os":{"name":"CentOS Linux release 7.6.1810 (C
ore) ","version":"Kernel 3.10.0-1160.11.1.el7.x86_64"}}}
{"t":{"$date":"2022-06-19T12:43:29.498+08:00"},"s":"I",  "c":"CONTROL",  "id":21951,   "ctx":"initandlisten","msg":"Options set by command line","attr":{"options":{"config":"/etc/mongod.co
nf","net":{"bindIp":"0.0.0.0","port":27017},"processManagement":{"pidFilePath":"/data/mongo_data/mongod.pid"},"storage":{"dbPath":"/data","directoryPerDB":true,"journal":{"
enabled":true},"wiredTiger":{"engineConfig":{"directoryForIndexes":true}}},"systemLog":{"destination":"file","logAppend":true,"path":"/log/mongod.log","quiet":true}}}}
{"t":{"$date":"2022-06-19T12:43:29.499+08:00"},"s":"E",  "c":"NETWORK",  "id":23024,   "ctx":"initandlisten","msg":"Failed to unlink socket file","attr":{"path":"/tmp/mongodb-27017.sock","
error":"Operation not permitted"}}
{"t":{"$date":"2022-06-19T12:43:29.499+08:00"},"s":"F",  "c":"-",        "id":23091,   "ctx":"initandlisten","msg":"Fatal assertion","attr":{"msgid":40486,"file":"src/mongo/transport/trans
port_layer_asio.cpp","line":948}}
{"t":{"$date":"2022-06-19T12:43:29.499+08:00"},"s":"F",  "c":"-",        "id":23092,   "ctx":"initandlisten","msg":"\n\n***aborting after fassert() failure\n\n"}

　　

从日志看是因为unlink socket文件。

# cd /tmp/
# ll |grep mongo
srwx------ 1  992 mongod        0 Jun  9 20:45 mongodb-27017.sock

　　

可以看到，sock文件的属主不对。删除，重启启动即可