tmp/.oracle，/var/tmp/.oracle如果删除了，该怎么办

Posted 2023-03-29

安装完成后,在正常运行的RAC下，不能手工移动或者删除/tmp/.oracle,/var/tmp/.oracle，如果移除了，会造成间断性的hang,oracle集群软件也会有报错。
记住：如果RAC正在运行千万不能删除！ 参考技术A http://www.th7.cn/db/Oracle/201601/175751.shtml

/tmp 和 /var/tmp 的区别

/tmp is meant as fast (possibly small) storage with a short time to live (TTL). Many systems clean /tmp very fast - on some systems it is even mounted as RAM-disk. /var/tmp is normally located on a physical disk, is larger and can hold temporary files for a longer time. Some systems also clean /var/tmp - but with a longer TTL.

Also note that /var/tmp might not be avaiable in the early boot-process, as /var and/or /var/tmp may be mountpoints. Thus it is a little bit comparable to the difference between /binand /usr/bin. The first is available during early boot - the later after the system has mounted everything. So most boot-scripts will use /tmp and not /var/tmp for temporary files.

Another (upcoming) location on Linux for temporary files is /dev/shm.