Linux Find command hangs

Question

The find command is as below:

find / -path "/proc/*" -prune -o -iname " core. "|grep -i "core\\.[0-9]"|grep -v "\\.gz"|grep -v "/man/"

It works well in our many labs, finished within a few minutes. But in another lab, it hangs over 1 hour.

Checked the output of "top" and "iostat -x -k" in that lab. The CPU and I/O load on that lab looks normal, but the find command is in S status.

------------top-------------

4203 root 15 0 652m 500m 636 S 9.7 1.6 148:34.69 find

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Any hint/idea is appreciated.

Answer 1

I have found the root cause. It's caused by a extremely huge directory.

[root@tt-na01-as01 export]# ll

drwxrwxr-x 2 system sysop 756490240 Nov 5 16:24 com.nsn.app.nbm.pm3gpp-1

The directory is so huge that even 'ls' and 'rm' commands hang.

Any suggestion on how to delete huge directory?