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我在 CentOS 7 和 8 上试过这个，我得到了同样的结果。还尝试了不同版本的 MongoDB。我正在尝试在 hyper-v VM 上运行 Pritunl VPN，并按照本教程安装 mongodb 和本教程设置所有内容，但我使用的是 VM 而不是 VPS。

当我运行“systemctl start mongod”时，我收到错误“mongod.service 的作业失败，因为传递了一个致命信号，导致控制进程转储核心。有关详细信息，请参阅“systemctl status mongod.service”和“journalctl -xe”。 "

运行 journalctl -xe 会产生与下面包含的代码类似的东西。我尝试禁用核心转储，“进程”编号从 3397 更改为 4143。还包括 systemctl status mongod.service 的输出。

这是我第一次使用这样的东西，所以我很可能错过了一些简单的东西。我一直在一些解决方案帖子中看到提到目录文件，但根据 mongodb 安装说明，它应该创建自己的目录。感谢任何帮助，因为我迷路了。

journalctl -xe：

    -- Unit mongod.service has begun starting up.
Dec 22 14:54:12 localhost.localdomain kernel: traps: mongod[33894] trap invalid opcode ip:558aaaedaeda sp:7ffd3f5a6560 error>
Dec 22 14:54:12 localhost.localdomain systemd[1]: Started Process Core Dump (PID 33895/UID 0).
-- Subject: Unit systemd-coredump@8-33895-0.service has finished start-up
-- Defined-By: systemd
-- Support: https://access.redhat.com/support
--
-- Unit systemd-coredump@8-33895-0.service has finished starting up.
--
-- The start-up result is done.
Dec 22 14:54:12 localhost.localdomain systemd-coredump[33896]: Resource limits disable core dumping for process 33894 (mongo>
Dec 22 14:54:12 localhost.localdomain systemd-coredump[33896]: Process 33894 (mongod) of user 974 dumped core.
-- Subject: Process 33894 (mongod) dumped core
-- Defined-By: systemd
-- Support: https://access.redhat.com/support
-- Documentation: man:core(5)
--
-- Process 33894 (mongod) crashed and dumped core.
--
-- This usually indicates a programming error in the crashing program and
-- should be reported to its vendor as a bug.
Dec 22 14:54:12 localhost.localdomain systemd[1]: mongod.service: Control process exited, code=dumped status=4
Dec 22 14:54:12 localhost.localdomain systemd[1]: mongod.service: Failed with result 'core-dump'.
-- Subject: Unit failed
-- Defined-By: systemd
-- Support: https://access.redhat.com/support
--
-- The unit mongod.service has entered the 'failed' state with result 'core-dump'.
Dec 22 14:54:12 localhost.localdomain systemd[1]: Failed to start MongoDB Database Server.
-- Subject: Unit mongod.service has failed
-- Defined-By: systemd
-- Support: https://access.redhat.com/support
--
-- Unit mongod.service has failed.
--
-- The result is failed.
Dec 22 14:54:12 localhost.localdomain systemd[1]: systemd-coredump@8-33895-0.service: Succeeded.
-- Subject: Unit succeeded
-- Defined-By: systemd
-- Support: https://access.redhat.com/support
--
-- The unit systemd-coredump@8-33895-0.service has successfully entered the 'dead' state.

mongod.service 的状态：


    ● mongod.service - MongoDB Database Server
   Loaded: loaded (/usr/lib/systemd/system/mongod.service; enabled; vendor preset: disabled)
   Active: failed (Result: core-dump) since Wed 2021-12-22 14:54:12 EST; 5min ago
     Docs: https://docs.mongodb.org/manual
  Process: 33894 ExecStart=/usr/bin/mongod $OPTIONS (code=dumped, signal=ILL)
  Process: 33892 ExecStartPre=/usr/bin/chmod 0755 /var/run/mongodb (code=exited, status=0/SUCCESS)
  Process: 33890 ExecStartPre=/usr/bin/chown mongod:mongod /var/run/mongodb (code=exited, status=0/SUCCESS)
  Process: 33888 ExecStartPre=/usr/bin/mkdir -p /var/run/mongodb (code=exited, status=0/SUCCESS)

Dec 22 14:54:12 localhost.localdomain systemd[1]: Starting MongoDB Database Server...
Dec 22 14:54:12 localhost.localdomain systemd-coredump[33896]: Process 33894 (mongod) of user 974 dumped core.
Dec 22 14:54:12 localhost.localdomain systemd[1]: mongod.service: Control process exited, code=dumped status=4
Dec 22 14:54:12 localhost.localdomain systemd[1]: mongod.service: Failed with result 'core-dump'.
Dec 22 14:54:12 localhost.localdomain systemd[1]: Failed to start MongoDB Database Server.

mongod.conf：

# mongod.conf

# for documentation of all options, see:
#   http://docs.mongodb.org/manual/reference/configuration-options/

# where to write logging data.
systemLog:
  destination: file
  logAppend: true
  path: /var/log/mongodb/mongod.log

# Where and how to store data.
storage:
  dbPath: /var/lib/mongo
  journal:
    enabled: true
#  engine:
#  wiredTiger:

# how the process runs
processManagement:
  fork: true  # fork and run in background
  pidFilePath: /var/run/mongodb/mongod.pid  # location of pidfile
  timeZoneInfo: /usr/share/zoneinfo

# network interfaces
net:
  port: 27017
  bindIp: 127.0.0.1  # Enter 0.0.0.0,:: to bind to all IPv4 and IPv6 addresses or, alternatively, use the net.bindIpAll setting.


#security:

#operationProfiling:

#replication:

#sharding:

## Enterprise-Only Options

#auditLog:
"/etc/mongod.conf" 44L, 830C

mongod .服务：

[Unit]
Description=MongoDB Database Server
Documentation=https://docs.mongodb.org/manual
After=network-online.target
Wants=network-online.target

[Service]
User=mongod
Group=mongod
Environment="OPTIONS=-f /etc/mongod.conf"
EnvironmentFile=-/etc/sysconfig/mongod
ExecStart=/usr/bin/mongod $OPTIONS
ExecStartPre=/usr/bin/mkdir -p /var/run/mongodb
ExecStartPre=/usr/bin/chown mongod:mongod /var/run/mongodb
ExecStartPre=/usr/bin/chmod 0755 /var/run/mongodb
PermissionsStartOnly=true
PIDFile=/var/run/mongodb/mongod.pid
Type=forking
# file size
LimitFSIZE=infinity
# cpu time
LimitCPU=infinity
# virtual memory size
LimitAS=infinity
# open files
LimitNOFILE=64000
# processes/threads
LimitNPROC=64000
# locked memory
LimitMEMLOCK=infinity
# total threads (user+kernel)
TasksMax=infinity
TasksAccounting=false
# Recommended limits for mongod as specified in
# https://docs.mongodb.com/manual/reference/ulimit/#recommended-ulimit-settings

[Install]
WantedBy=multi-user.target
~
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