AWSで運用している1台のウェブサーバのインスタンス突然停止してしまいました。
以下、停止直前の /var/log/messages の内容となりますが、ここから何か原因等わかりますでしょうか。
もし何かアドバイス等ございましたらいただければ幸いです。
(ほかにログが必要であれば提供いたします)
May 16 17:28:10 ip-xxx.xxx.xxx.xxx dhclient[2098]: bound to xxx.xxx.xxx.xxx -- renewal in 1510 seconds.
May 16 17:53:20 ip-xxx.xxx.xxx.xxx dhclient[2098]: DHCPREQUEST on eth0 to xxx.xxx.xxx.xxx port 67 (xid=0x151a63e9)
May 16 17:53:20 ip-xxx.xxx.xxx.xxx dhclient[2098]: DHCPACK from xxx.xxx.xxx.xxx (xid=0x151a63e9)
May 16 17:53:22 ip-xxx.xxx.xxx.xxx dhclient[2098]: bound to xxx.xxx.xxx.xxx -- renewal in 1517 seconds.
May 16 18:18:39 ip-xxx.xxx.xxx.xxx dhclient[2098]: DHCPREQUEST on eth0 to xxx.xxx.xxx.xxx port 67 (xid=0x151a63e9)
May 16 18:18:39 ip-xxx.xxx.xxx.xxx dhclient[2098]: DHCPACK from xxx.xxx.xxx.xxx (xid=0x151a63e9)
May 16 18:18:41 ip-xxx.xxx.xxx.xxx dhclient[2098]: bound to xxx.xxx.xxx.xxx -- renewal in 1474 seconds.
May 16 18:43:15 ip-xxx.xxx.xxx.xxx dhclient[2098]: DHCPREQUEST on eth0 to xxx.xxx.xxx.xxx port 67 (xid=0x151a63e9)
May 16 18:43:15 ip-xxx.xxx.xxx.xxx dhclient[2098]: DHCPACK from xxx.xxx.xxx.xxx (xid=0x151a63e9)
May 16 18:43:17 ip-xxx.xxx.xxx.xxx dhclient[2098]: bound to xxx.xxx.xxx.xxx -- renewal in 1678 seconds.
May 16 19:02:13 ip-xxx.xxx.xxx.xxx init: serial (ttyS0) main process (2482) killed by TERM signal
May 16 19:02:13 ip-xxx.xxx.xxx.xxx init: tty (/dev/tty1) main process (2484) killed by TERM signal
May 16 19:02:13 ip-xxx.xxx.xxx.xxx init: tty (/dev/tty2) main process (2487) killed by TERM signal
May 16 19:02:13 ip-xxx.xxx.xxx.xxx init: tty (/dev/tty3) main process (2489) killed by TERM signal
May 16 19:02:13 ip-xxx.xxx.xxx.xxx init: tty (/dev/tty4) main process (2491) killed by TERM signal
May 16 19:02:13 ip-xxx.xxx.xxx.xxx init: tty (/dev/tty5) main process (2493) killed by TERM signal
May 16 19:02:13 ip-xxx.xxx.xxx.xxx init: tty (/dev/tty6) main process (2495) killed by TERM signal
May 16 19:02:13 ip-xxx.xxx.xxx.xxx init: plymouth-shutdown main process (9032) terminated with status 1
May 16 19:02:13 ip-xxx.xxx.xxx.xxx init: splash-manager main process (9027) terminated with status 1
May 16 19:02:14 ip-xxx.xxx.xxx.xxx ntpd[2353]: ntpd exiting on signal 15
May 16 19:02:14 ip-xxx.xxx.xxx.xxx init: Disconnected from system bus
May 16 19:02:14 ip-xxx.xxx.xxx.xxx rpcbind: rpcbind terminating on signal. Restart with "rpcbind -w"
May 16 19:02:14 ip-xxx.xxx.xxx.xxx auditd[2139]: The audit daemon is exiting.
May 16 19:02:14 ip-xxx.xxx.xxx.xxx kernel: [237095.274698] audit: type=1305 audit(1463392934.546:610): audit_pid=0 old=2139 auid=4294967295 ses=4294967295 res=1
May 16 19:02:14 ip-xxx.xxx.xxx.xxx kernel: [237095.366951] audit: type=1305 audit(1463392934.638:611): auid=4294967295 ses=4294967295 op="remove_rule" key=(null) list=1 res=1
May 16 19:02:14 ip-xxx.xxx.xxx.xxx kernel: [237095.373571] audit: type=1305 audit(1463392934.646:612): audit_enabled=0 old=1 auid=4294967295 ses=4294967295 res=1
May 16 19:02:14 ip-xxx.xxx.xxx.xxx kernel: Kernel logging (proc) stopped.
May 16 19:02:14 ip-xxx.xxx.xxx.xxx rsyslogd: [origin software="rsyslogd" swVersion="5.8.10" x-pid="2157" x-info="http://www.rsyslog.com"] exiting on signal 15.
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2016/05/18 02:17
2016/05/24 07:40