Question

我们在运行Java 8u74 x64的CentOS 7 x64服务器上遇到了问题。

大约每6-10周一次。正在运行的JVM似乎松散了＃34;它的时区设置几秒钟。

服务器时区是澳大利亚/珀斯（GMT + 8），但是几秒钟后，日志会打印没有时区数据的日期（就像回到时间8小时一样），然后又恢复正常。

通常打印日志：

2016-08-30T09:57:59.811+0800

但是几分钟后，日志会显示：

2016-08-30T09:57:59.811+0000 (ending in +0000 as in GMT)

执行检查：

使用-Duser.timezone=Australia/Perth
ntpd on
yum update tzdata已完成
yum update ntp已完成
yum update tzdata已完成
服务器以TZ=Australia/Perth环境变量
zdump -v /etc/localtime

zdump输出似乎有点奇怪

当我运行zdump -v /etc/localtime时，我得到以下内容：

/etc/localtime  -9223372036854775808 = NULL

/etc/localtime  -9223372036854689408 = NULL

/etc/localtime  Sat Nov 30 16:16:35 1895 UTC = Sat Nov 30 23:59:59 1895 LMT isdst=0 gmtoff=27804

/etc/localtime  Sat Nov 30 16:16:36 1895 UTC = Sun Dec  1 00:16:36 1895 AWST isdst=0 gmtoff=28800
...

大约25个更正确的条目

...
/etc/localtime  Sat Mar 28 17:59:59 2009 UTC = Sun Mar 29 02:59:59 2009 AWDT isdst=1 gmtoff=32400

/etc/localtime  Sat Mar 28 18:00:00 2009 UTC = Sun Mar 29 02:00:00 2009 AWST isdst=0 gmtoff=28800

/etc/localtime  9223372036854689407 = NULL

/etc/localtime  9223372036854775807 = NULL

顶部和底部的那些NULL是一个问题吗？

关于还有什么可能导致问题的任何想法？

更新

好吧，问题再次发生，这次centos盒上的时钟落后3小时，ntpd似乎已经崩溃了。

好的，看看这个

[root@xotica admin]# date
Fri Oct 21 19:53:58 AWST 2016
[root@xotica admin]# service ntpd status
Redirecting to /bin/systemctl status  ntpd.service
● ntpd.service - Network Time Service
   Loaded: loaded (/usr/lib/systemd/system/ntpd.service; enabled; vendor preset: disabled)
   Active: failed (Result: exit-code) since Fri 2016-10-21 16:56:42 AWST; 2h 57min ago
 Main PID: 32012 (code=exited, status=255)

Oct 21 16:56:35 xotica.dyndns.org ntpd[32012]: 202.127.210.37 interface 192.168.1.200 -> (none)
Oct 21 16:56:39 xotica.dyndns.org ntpd[32012]: Listen normally on 6 enp0s3 192.168.1.200 UDP 123
Oct 21 16:56:39 xotica.dyndns.org ntpd[32012]: new interface(s) found: waking up resolver
Oct 21 16:56:40 xotica.dyndns.org ntpd[32012]: 0.0.0.0 0628 08 no_sys_peer
Oct 21 16:56:41 xotica.dyndns.org ntpd[32012]: Listen normally on 7 enp0s3 fe80::a00:27ff:fea0:ecd8 UDP 123
Oct 21 16:56:41 xotica.dyndns.org ntpd[32012]: new interface(s) found: waking up resolver
Oct 21 16:56:42 xotica.dyndns.org ntpd[32012]: 0.0.0.0 0617 07 panic_stop +8960 s; set clock manually within 1000 s.
Oct 21 16:56:42 xotica.dyndns.org systemd[1]: ntpd.service: main process exited, code=exited, status=255/n/a
Oct 21 16:56:42 xotica.dyndns.org systemd[1]: Unit ntpd.service entered failed state.
Oct 21 16:56:42 xotica.dyndns.org systemd[1]: ntpd.service failed.
[root@xotica admin]# service ntpd restart
Redirecting to /bin/systemctl restart  ntpd.service
[root@xotica admin]# date
Fri Oct 21 22:23:55 AWST 2016
[root@xotica admin]# service ntpd status
Redirecting to /bin/systemctl status  ntpd.service
● ntpd.service - Network Time Service
   Loaded: loaded (/usr/lib/systemd/system/ntpd.service; enabled; vendor preset: disabled)
   Active: active (running) since Fri 2016-10-21 19:54:28 AWST; 2h 33min ago
  Process: 32404 ExecStart=/usr/sbin/ntpd -u ntp:ntp $OPTIONS (code=exited, status=0/SUCCESS)
 Main PID: 32405 (ntpd)
   CGroup: /system.slice/ntpd.service
           └─32405 /usr/sbin/ntpd -u ntp:ntp -g

Oct 21 19:54:28 xotica.dyndns.org ntpd[32405]: Listen normally on 2 lo 127.0.0.1 UDP 123
Oct 21 19:54:28 xotica.dyndns.org ntpd[32405]: Listen normally on 3 enp0s3 192.168.1.200 UDP 123
Oct 21 19:54:28 xotica.dyndns.org ntpd[32405]: Listen normally on 4 lo ::1 UDP 123
Oct 21 19:54:28 xotica.dyndns.org ntpd[32405]: Listen normally on 5 enp0s3 fe80::a00:27ff:fea0:ecd8 UDP 123
Oct 21 19:54:28 xotica.dyndns.org ntpd[32405]: Listening on routing socket on fd #22 for interface updates
Oct 21 19:54:30 xotica.dyndns.org ntpd[32405]: 0.0.0.0 c016 06 restart
Oct 21 19:54:30 xotica.dyndns.org ntpd[32405]: 0.0.0.0 c012 02 freq_set kernel -15.236 PPM
Oct 21 19:54:30 xotica.dyndns.org ntpd[32405]: 0.0.0.0 c61c 0c clock_step +8960.294249 s
Oct 21 22:23:50 xotica.dyndns.org ntpd[32405]: 0.0.0.0 c614 04 freq_mode
Oct 21 22:23:51 xotica.dyndns.org ntpd[32405]: 0.0.0.0 c618 08 no_sys_peer

有什么想法吗？

Java＆＃34;失败＆＃34;时区在Centos 7

0 个答案: