服务器上安装了CentOS7操作系统，经常莫名其妙的卡住，ssh连接不上，使用显示器连接服务器的时候发现显示器没有反应。贴一段系统的异常日志：
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下面这段是内存溢出了：
Sep 9 11:00:41 datanode04 kernel: Out of memory: Kill process 30914 (python) score 371 or sacrifice child
Sep 9 11:00:41 datanode04 kernel: Killed process 30914 (python) total-vm:44705660kB, anon-rss:4810244kB, file-rss:904kB
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下面这段是服务被重启了：
Sep 9 11:34:57 datanode04 dbus-daemon: dbus[990]: [system] Activating service name='org.freedesktop.PackageKit' (using servicehelper)
Sep 9 11:36:13 datanode04 dbus-daemon: dbus[990]: [system] Failed to activate service 'org.freedesktop.PackageKit': timed out
Sep 9 11:36:13 datanode04 dbus[990]: [system] Activating service name='org.freedesktop.PackageKit' (using servicehelper)
Sep 9 11:36:13 datanode04 dbus[990]: [system] Failed to activate service 'org.freedesktop.PackageKit': timed out
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Sep 9 11:37:56 datanode04 gnome-session: (gnome-settings-daemon:4065): updates-plugin-WARNING **: failed to get time: GDBus.Error:org.freedesktop.DBus.Error.TimedOut: Activation of org.freedesktop.PaSep 9 11:44:05 datanode04 rsyslogd: [origin software="rsyslogd"
swVersion="7.4.7" x-pid="954" x-info="http://www.rsyslog.com"] start
Sep 9 11:43:57 datanode04 journal: Runtime journal is using 8.0M (max 1.9G, leaving 2.9G of free 19.4G, current limit 1.9G).
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关掉了这两个服务。
来源：CSDN
作者：beautygao
链接：https://blog.csdn.net/BeautyGao/article/details/48435033