rsync 日志时间与系统时区不一致的问题

需要设置一个软连接 /etc/localtime

通过测试发现 rsync默认读取的是 /etc/localtime这个下面的某一个时区，如果没有设置软连接，就算系统时间和现实时间一致，rsync的日志时间也会慢8个小时

# 系统时间与实际时间一致
# date
Wed Jun  8 18:03:31 CST 2022

# ls /etc/localtime
Africa      Atlantic   Canada  EST5EDT  GB       GMT0       Indian   Kwajalein  Mexico   PST8PDT   ROK        UTC        iso3166.tab  tzdata.zi
America     Australia  Chile   Egypt    GB-Eire  Greenwich  Iran     Libya      NZ       Pacific   Singapore  Universal  leapseconds  zone.tab
Antarctica  Brazil     Cuba    Eire     GMT      HST        Israel   MET        NZ-CHAT  Poland    Turkey     W-SU       posix        zone1970.tab
Arctic      CET        EET     Etc      GMT+0    Hongkong   Jamaica  MST        Navajo   Portugal  UCT        WET        posixrules
Asia        CST6CDT    EST     Europe   GMT-0    Iceland    Japan    MST7MDT    PRC      ROC       US         Zulu       right


# 谨慎使用，删除目录前最好备份。
sh-4.2# rm -fr /etc/localtime

# 设置软连接并检测没有问题
sh-4.2# ln -s /usr/share/zoneinfo/Asia/Shanghai /etc/localtime 
sh-4.2# ls -l /etc/localtime
lrwxrwxrwx 1 root root 33 Jun  8 18:47 /etc/localtime -> /usr/share/zoneinfo/Asia/Shanghai


# 接下来就是看rsync打印的日志了
sh-4.2# tail -f /letv/logs/rsync_cmsmessage.log

2022/06/08 10:47:01 [5186] sent 46 bytes  received 28,975 bytes  58,042.00 bytes/sec
2022/06/08 10:47:01 [5186] total size is 179,792,075  speedup is 6,195.24
2022/06/08 18:48:01 [5196] receiving file list
2022/06/08 18:48:01 [5197] sent 46 bytes  received 28,975 bytes  58,042.00 bytes/sec
2022/06/08 18:48:01 [5197] total size is 179,792,075  speedup is 6,195.24

可以看到 时间自动更新完成。