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crimson
Guru
Joined: 27 Apr 2002
Posts: 430
Location: Cedar Rapids, IA
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 Posted: Fri Apr 04, 2008 6:42 pm Post subject: Samba - ls takes forever on disconnected mounted drives |
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I have samba installed on my Gentoo box, and filesharing on my Windows boxes. It works pretty well, and I have linux mount the Windows shares on system startup.
My only problem is, sometimes a Windows box needs to be restarted, or even crashes (imagine that), and now my Gentoo box doesn't recognize this has happened, and when I do | Code: | | ls /mnt/samba/computa/c |
the ls command just hangs for about 30sec - 1 min. before outputting:
| Code: | | ls: cannot access computa/c: Input/output error |
During this minute I cannot hit CTRL-C to cancel the command.
The ideal solution would be this:
-auto unmount the shared drive and all of its folder mountpoints when the connection goes down, and automount the drive/folders when it comes back online. Maybe by an /etc/cron.hourly that pings the windows box? I'm not quite sure the best way to do this, but I am sure i could write the cron script. Maybe there's something that will do this already.
But I would settle for just being able to have the ls command give up after say 2 seconds on a network share if it isn't responding.
Suggestions? |
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crimson
Guru
Joined: 27 Apr 2002
Posts: 430
Location: Cedar Rapids, IA
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| Posted: Fri Apr 04, 2008 8:05 pm Post subject: |
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Well here I am one hour later, I went ahead and wrote a script. It works. I am not a good coder, maybe give me a tip or two, but it does what I want. I am still looking for a better solution, and still looking to find out how to make the ls command not take 30 sec on up to stop hanging.
Heres the script:
| Code: |
#!/bin/bash
# smbmountright
# Pings hosts and if they are up and smb mounts are down, mounts shares.
# if they are down and smb mounts are up, umounts shares.
# put in /etc/cron.hourly to keep smb mounts in order.
# 4/4/08
HOSTS='illuminati computa'
SHARE_DIR='/mnt/samba'
for i in $HOSTS; do
pingStatus="$(ping -c3 $i | grep '0 received')"
mountStatus="$(grep $i /etc/mtab)"
if [ -z "$pingStatus" ] #if $pingStatus is empty, then host is up
then
echo "$i is up"
if [ -z "$mountStatus" ] #if $mountStatus is empty, then mounts are down
then
# mount all shares in directory
for j in $(ls $SHARE_DIR/$i); do
echo "mounting $j on $i"
mount $SHARE_DIR/$i/$j
done
fi
else # host is down
echo "$i is down"
if [ -n "$mountStatus" ] #if $mountStatus is non-empty, then mounts are up.
then
# umount all shares in directory
for k in $(ls $SHARE_DIR/$i); do
echo "umounting $k on $i"
umount $SHARE_DIR/$i/$k
done
fi
fi
done
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