Dear Lars Ellenberg san
Thanks for your reply !!
Now, drbdadm command is stalled. And the lock is remain.
Please teach me the way to unlock?
Is your answer "There is none"?
Please teach me the way to remove the lock?
Do I have to reboot the DRBD servers?
Do I have to drbd service restart?
Do I have to remove the lock file, only?
Do I have to execute "drbdadm disconnect <resource name> --force"?
And.
Please teach me Influence on others with execution of this command.
drbdadm disconnect <resource name> --force
Regards,
Hi
This is Yahagi.
Now, I use DRBD ver 8.3.15.
When the network to use DRBD Mirroring was under high stress,
the drbdadm command “drbdadm disconnect <resource name>” was
stalled.
Then, drbdadm sh-status command is can not run by lock
(/var/lock/drbd-147-12).
I try to kill the process that executed the drbdadm command.
Ant it is killed. But, I can not unlock.
Please teach me the way to unlock?
There is none (but killing the process that holds the lock).
A graceful (not --forced) drbd disconnect usually waits until all
pending requests are done.
If your network is seriously congested, that may take a while.
Especially if you use DRBD protocol A.
So if you want to disconnect *right now*, use "--force".
Note that if a non-forced disconnect is pending,
an additional --forced one has to wait as well ...
If all else fails, you could also cut the tcp connection,
using iptables or other tools...
- Log ----------------------------
root# drbdadm sh-status
_drbd_version=8.3.15
_drbd_api=88
_config_file=/etc/drbd.conf
_stacked_on=
_stacked_on_device=
_stacked_on_minor=
lock on /var/lock/drbd-147-12 currently held by pid:6719
Command 'drbdsetup 12 sh-status' terminated with exit code 20
command sh-status exited with code 20
root# ps augxw | grep 6719
root 6719 0.0 0.0 4112 652 ? S Jun28 0:01 drbdsetup
12 disconnect
----------------------------------------------------------
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