Change in vdsm[master]: lvm: Disable usage of lv_metad daemon

danken at redhat.com danken at redhat.com
Thu Apr 24 16:07:16 UTC 2014


Dan Kenigsberg has posted comments on this change.

Change subject: lvm: Disable usage of lv_metad daemon
......................................................................


Patch Set 5:

(1 comment)

http://gerrit.ovirt.org/#/c/25408/5//COMMIT_MSG
Commit Message:

Line 17: 
Line 18: This patch fixes the issue by disabling usage of lvmmetad in vdsm's
Line 19: private lvm configuration. lvm commands run by vdsm read metadata from
Line 20: storage, while lvm commands running from the shell use lvmetad if
Line 21: configured.
> Dan do you just want a specific reference to what we know we're handling?
Yes. I am looking for an explicit statement: "according to lvm experts, and despite what the man page says, it is safe to disable lvmetad within vdsm as long as all access to vdsm-conrolled VGs avoid the cache daemon" or something like that.
Line 22: 
Line 23: Note: accessing vdsm volumes manually using lvm requires disabling of
Line 24: lvmmetad daemon. An admin may do this by modifying lvm.conf, or use the
Line 25: --config command line argument:


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Gerrit-MessageType: comment
Gerrit-Change-Id: I909f03a2abada97e08cb9c645e357aa80ef9d788
Gerrit-PatchSet: 5
Gerrit-Project: vdsm
Gerrit-Branch: master
Gerrit-Owner: Nir Soffer <nsoffer at redhat.com>
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