mongodb - 为什么 mongod.service 被我的系统杀死？

Question

我正在使用 MongoDB 4.4 版本在 Ubuntu 20.4 ，在同一台服务器上使用 2 个 mongo 实例。我遇到了这个问题:

Sep 03 10:45:25 mlnode systemd[1]: Stopping MongoDB Database Server...
Sep 03 10:45:25 mlnode systemd[1]: mongod.service: Succeeded.
Sep 03 10:45:25 mlnode systemd[1]: Stopped MongoDB Database Server.
Sep 03 10:45:25 mlnode systemd[1]: Started MongoDB Database Server.
Sep 03 10:55:46 mlnode systemd[1]: Stopping MongoDB Database Server...
Sep 03 10:55:46 mlnode systemd[1]: mongod.service: Succeeded.
Sep 03 10:55:46 mlnode systemd[1]: Stopped MongoDB Database Server.
Sep 03 10:55:46 mlnode systemd[1]: Started MongoDB Database Server.
Sep 03 11:05:05 mlnode systemd[1]: Stopping MongoDB Database Server...
Sep 03 11:05:05 mlnode systemd[1]: mongod.service: Succeeded.
Sep 03 11:05:05 mlnode systemd[1]: Stopped MongoDB Database Server.
Sep 03 11:05:05 mlnode systemd[1]: Started MongoDB Database Server.
Sep 03 11:13:20 mlnode systemd[1]: /lib/systemd/system/mongod.service:11: PIDFile= references a path below legacy directory /var/run/, updating /var/run/mongodb/mongod.pid → /run/mongodb/mongod.pid; please update the unit file accordingly.
Sep 03 11:25:47 mlnode systemd[1]: /lib/systemd/system/mongod.service:11: PIDFile= references a path below legacy directory /var/run/, updating /var/run/mongodb/mongod.pid → /run/mongodb/mongod.pid; please update the unit file accordingly.
Sep 03 11:56:47 mlnode systemd[1]: mongod.service: Main process exited, code=killed, status=6/ABRT
Sep 03 11:56:47 mlnode systemd[1]: mongod.service: Failed with result 'signal'

想知道系统为什么要杀 mongod.service ，我没有任何线索。然后我检查了我的 mongo 日志:

{"t":{"$date":"2020-09-03T11:56:46.379+05:30"},"s":"F",  "c":"-",        "id":23083,   "ctx":"conn10155","msg":"Invariant failure","attr":{"expr":"ret","error":"UnknownError: -31803: WT_NOTFOUND: item not found","file":"src/mongo/db/storage/wiredtiger/wiredtiger_record_store.cpp","line":1598}}
{"t":{"$date":"2020-09-03T11:56:46.379+05:30"},"s":"F",  "c":"-",        "id":23084,   "ctx":"conn10155","msg":"\n\n***aborting after invariant() failure\n\n"}
{"t":{"$date":"2020-09-03T11:56:46.379+05:30"},"s":"F",  "c":"CONTROL",  "id":4757800, "ctx":"conn10155","msg":"Writing fatal message","attr":{"message":"Got signal: 6 (Aborted).\n"}}

Answer 1

首先，如果您重新启动，请停止 mongodb:

sudo systemctl stop mongod

接下来，我检测到数据库损坏:

sudo mongod --repair --dbpath /var/lib/mongodb

接下来，运行命令:

chown -R mongodb:mongodb /var/lib/mongodb
chown mongodb:mongodb /tmp/mongodb-27017.sock

最后

sudo systemctl start mongod

发件人: https://sondnpt00343.medium.com/how-to-fix-mongod-service-32dbbe51a4ee