MongoDB社区未在Mac上启动并出现错误

我写信是想告诉大家，我曾经使用brew（High Sierra）安装过mongodb社区，并且它正在运行。然后最近我升级了，它似乎没有连接。在终端中运行mongo时，出现错误：

MongoDB shell version v4.4.0
connecting to: mongodb://127.0.0.1:27017/?compressors=disabled&gssapiServiceName=mongodb
Error: couldn't connect to server 127.0.0.1:27017, connection attempt failed: SocketException: Error connecting to 127.0.0.1:27017 :: caused by :: Connection refused :
connect@src/mongo/shell/mongo.js:362:17
@(connect):2:6
exception: connect failed
exiting with code 1

{"t":{"$date":"2020-09-04T21:01:35.015-07:00"},"s":"W",  "c":"CONTROL",  "id":20698,   "ctx":"main","msg":"***** SERVER RESTARTED *****","tags":["startupWarnings"]}
{"t":{"$date":"2020-09-04T21:01:35.021-07:00"},"s":"I",  "c":"CONTROL",  "id":23285,   "ctx":"main","msg":"Automatically disabling TLS 1.0, to force-enable TLS 1.0 specify --sslDisabledProtocols 'none'"}
{"t":{"$date":"2020-09-04T21:01:35.027-07:00"},"s":"W",  "c":"ASIO",     "id":22601,   "ctx":"main","msg":"No TransportLayer configured during NetworkInterface startup"}
{"t":{"$date":"2020-09-04T21:01:35.027-07:00"},"s":"I",  "c":"NETWORK",  "id":4648602, "ctx":"main","msg":"Implicit TCP FastOpen in use."}
{"t":{"$date":"2020-09-04T21:01:35.028-07:00"},"s":"I",  "c":"STORAGE",  "id":4615611, "ctx":"initandlisten","msg":"MongoDB starting","attr":{"pid":58706,"port":27017,"dbPath":"/Users/my_username/homebrew/var/mongodb","architecture":"64-bit","host":"SC-*"}}
{"t":{"$date":"2020-09-04T21:01:35.029-07:00"},"s":"I",  "c":"CONTROL",  "id":23403,   "ctx":"initandlisten","msg":"Build Info","attr":{"buildInfo":{"version":"4.4.0","gitVersion":"563487e100c4215e2dce98d0af2a6a5a2d67c5cf","modules":[],"allocator":"system","environment":{"distarch":"x86_64","target_arch":"x86_64"}}}}
{"t":{"$date":"2020-09-04T21:01:35.029-07:00"},"s":"I",  "c":"CONTROL",  "id":51765,   "ctx":"initandlisten","msg":"Operating System","attr":{"os":{"name":"Mac OS X","version":"17.7.0"}}}
{"t":{"$date":"2020-09-04T21:01:35.029-07:00"},"s":"I",  "c":"CONTROL",  "id":21951,   "ctx":"initandlisten","msg":"Options set by command line","attr":{"options":{"config":"/Users/my_username/homebrew/etc/mongod.conf","net":{"bindIp":"127.0.0.1"},"storage":{"dbPath":"/Users/my_username/homebrew/var/mongodb"},"systemLog":{"destination":"file","logAppend":true,"path":"/Users/my_username/homebrew/var/log/mongodb/mongo.log"}}}}
{"t":{"$date":"2020-09-04T21:01:35.038-07:00"},"s":"I",  "c":"STORAGE",  "id":22270,   "ctx":"initandlisten","msg":"Storage engine to use detected by data files","attr":{"dbpath":"/Users/my_username/homebrew/var/mongodb","storageEngine":"wiredTiger"}}
{"t":{"$date":"2020-09-04T21:01:35.038-07:00"},"s":"I",  "c":"STORAGE",  "id":22315,   "ctx":"initandlisten","msg":"Opening WiredTiger","attr":{"config":"create,cache_size=7680M,session_max=33000,eviction=(threads_min=4,threads_max=4),config_base=false,statistics=(fast),log=(enabled=true,archive=true,path=journal,compressor=snappy),file_manager=(close_idle_time=100000,close_scan_interval=10,close_handle_minimum=250),statistics_log=(wait=0),verbose=[recovery_progress,checkpoint_progress,compact_progress],"}}
{"t":{"$date":"2020-09-04T21:01:36.177-07:00"},"s":"W",  "c":"STORAGE",  "id":22347,   "ctx":"initandlisten","msg":"Failed to start up WiredTiger under any compatibility version. This may be due to an unsupported upgrade or downgrade."}
{"t":{"$date":"2020-09-04T21:01:36.178-07:00"},"s":"F",  "c":"STORAGE",  "id":28595,   "ctx":"initandlisten","msg":"Terminating.","attr":{"reason":"45: Operation not supported"}}
{"t":{"$date":"2020-09-04T21:01:36.178-07:00"},"s":"F",  "c":"-",        "id":23091,   "ctx":"initandlisten","msg":"Fatal assertion","attr":{"msgid":28595,"file":"src/mongo/db/storage/wiredtiger/wiredtiger_kv_engine.cpp","line":1100}}
{"t":{"$date":"2020-09-04T21:01:36.178-07:00"},"s":"F",  "c":"-",        "id":23092,   "ctx":"initandlisten","msg":"\n\n***aborting after fassert() failure\n\n"}

当我检查启动mongodb社区服务的日志时，发现以下错误：

MongoDB shell version v4.4.0
connecting to: mongodb://127.0.0.1:27017/?compressors=disabled&gssapiServiceName=mongodb
Error: couldn't connect to server 127.0.0.1:27017, connection attempt failed: SocketException: Error connecting to 127.0.0.1:27017 :: caused by :: Connection refused :
connect@src/mongo/shell/mongo.js:362:17
@(connect):2:6
exception: connect failed
exiting with code 1

{"t":{"$date":"2020-09-04T21:01:35.015-07:00"},"s":"W",  "c":"CONTROL",  "id":20698,   "ctx":"main","msg":"***** SERVER RESTARTED *****","tags":["startupWarnings"]}
{"t":{"$date":"2020-09-04T21:01:35.021-07:00"},"s":"I",  "c":"CONTROL",  "id":23285,   "ctx":"main","msg":"Automatically disabling TLS 1.0, to force-enable TLS 1.0 specify --sslDisabledProtocols 'none'"}
{"t":{"$date":"2020-09-04T21:01:35.027-07:00"},"s":"W",  "c":"ASIO",     "id":22601,   "ctx":"main","msg":"No TransportLayer configured during NetworkInterface startup"}
{"t":{"$date":"2020-09-04T21:01:35.027-07:00"},"s":"I",  "c":"NETWORK",  "id":4648602, "ctx":"main","msg":"Implicit TCP FastOpen in use."}
{"t":{"$date":"2020-09-04T21:01:35.028-07:00"},"s":"I",  "c":"STORAGE",  "id":4615611, "ctx":"initandlisten","msg":"MongoDB starting","attr":{"pid":58706,"port":27017,"dbPath":"/Users/my_username/homebrew/var/mongodb","architecture":"64-bit","host":"SC-*"}}
{"t":{"$date":"2020-09-04T21:01:35.029-07:00"},"s":"I",  "c":"CONTROL",  "id":23403,   "ctx":"initandlisten","msg":"Build Info","attr":{"buildInfo":{"version":"4.4.0","gitVersion":"563487e100c4215e2dce98d0af2a6a5a2d67c5cf","modules":[],"allocator":"system","environment":{"distarch":"x86_64","target_arch":"x86_64"}}}}
{"t":{"$date":"2020-09-04T21:01:35.029-07:00"},"s":"I",  "c":"CONTROL",  "id":51765,   "ctx":"initandlisten","msg":"Operating System","attr":{"os":{"name":"Mac OS X","version":"17.7.0"}}}
{"t":{"$date":"2020-09-04T21:01:35.029-07:00"},"s":"I",  "c":"CONTROL",  "id":21951,   "ctx":"initandlisten","msg":"Options set by command line","attr":{"options":{"config":"/Users/my_username/homebrew/etc/mongod.conf","net":{"bindIp":"127.0.0.1"},"storage":{"dbPath":"/Users/my_username/homebrew/var/mongodb"},"systemLog":{"destination":"file","logAppend":true,"path":"/Users/my_username/homebrew/var/log/mongodb/mongo.log"}}}}
{"t":{"$date":"2020-09-04T21:01:35.038-07:00"},"s":"I",  "c":"STORAGE",  "id":22270,   "ctx":"initandlisten","msg":"Storage engine to use detected by data files","attr":{"dbpath":"/Users/my_username/homebrew/var/mongodb","storageEngine":"wiredTiger"}}
{"t":{"$date":"2020-09-04T21:01:35.038-07:00"},"s":"I",  "c":"STORAGE",  "id":22315,   "ctx":"initandlisten","msg":"Opening WiredTiger","attr":{"config":"create,cache_size=7680M,session_max=33000,eviction=(threads_min=4,threads_max=4),config_base=false,statistics=(fast),log=(enabled=true,archive=true,path=journal,compressor=snappy),file_manager=(close_idle_time=100000,close_scan_interval=10,close_handle_minimum=250),statistics_log=(wait=0),verbose=[recovery_progress,checkpoint_progress,compact_progress],"}}
{"t":{"$date":"2020-09-04T21:01:36.177-07:00"},"s":"W",  "c":"STORAGE",  "id":22347,   "ctx":"initandlisten","msg":"Failed to start up WiredTiger under any compatibility version. This may be due to an unsupported upgrade or downgrade."}
{"t":{"$date":"2020-09-04T21:01:36.178-07:00"},"s":"F",  "c":"STORAGE",  "id":28595,   "ctx":"initandlisten","msg":"Terminating.","attr":{"reason":"45: Operation not supported"}}
{"t":{"$date":"2020-09-04T21:01:36.178-07:00"},"s":"F",  "c":"-",        "id":23091,   "ctx":"initandlisten","msg":"Fatal assertion","attr":{"msgid":28595,"file":"src/mongo/db/storage/wiredtiger/wiredtiger_kv_engine.cpp","line":1100}}
{"t":{"$date":"2020-09-04T21:01:36.178-07:00"},"s":"F",  "c":"-",        "id":23092,   "ctx":"initandlisten","msg":"\n\n***aborting after fassert() failure\n\n"}

---

我能请你帮我修一下吗？我没有sudo权限，无法升级操作系统，但我愿意使用任何方法使用mongo

日志告诉您发生了什么

"Failed to start up WiredTiger under any compatibility version. This may be due to an unsupported upgrade or downgrade."

这样，您可能想阅读旧的MunGDB版本的文档，查看它是否可以升级到4.4.0版本，如果不是，请考虑升级到与当前使用

的WiRe老虎版本兼容的最新版本。

---

这可能有用。要升级到mongoDB v4.0或更高版本，您必须至少运行mongoDB v3.6，否则必须先升级到v3.6，类似问题，最终解决方案：

卸载（最新但未工作的版本：

4.4.3

）

brew卸载mongodb社区

重新安装，旧但工作正常

4.2.1

brew安装mongodb-community@4.2

跑

• 目前：

  brew服务运行mongodb-community@4.2

• 现在并设置为可引导：

  brew服务启动mongodb-community@4.2

检查状态

---

brew services

您是从哪个版本升级的？我将其升级到了4.4，应该是从4.2升级的。我还使用

brew服务列表

命令进行了检查，它不是绿色而是黄色。如果可能的话，我可以寻求进一步的帮助吗。我也尝试了3.6和4.0等较低版本，但我得到了相同的行为。实际上，您的日志的输出几乎与您忘记设置功能兼容性时的输出完全相同。我看得出来，因为在从4.2升级到4.4的过程中我也忘记了它。。。对于这种情况，@Eddy的答案是正确的；dr

db.adminCommand（{setFeatureCompatibilityVersion:“4.2”}）

用于4.2之前安装的4.2到4.4升级：