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安装：
yum -y install
配置：
shell>> cat /etc/logrotate.d/mongodb_28008
/home/work/mongodb/mongo_28008/log/mongodb.log{
missingok
daily
copytruncate
size 2048M
dateext
create 0600 work work
rotate 10
notifempty
}
执行日志轮换：
logrotate -f /etc/logrotate.d/igoodful
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