Wednesday, 2020-11-11

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openstackgerritzhongshengping proposed openstack/puppet-manila master: Replace deprecated UPPER_CONSTRAINTS_FILE variable  https://review.opendev.org/76223201:09
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openstackgerritLin PeiWen proposed openstack/manila master: Delete unavailable py2 package  https://review.opendev.org/76227303:04
openstackgerritPaul Ali proposed openstack/python-manilaclient master: Implements usage of '-c /--column' instead of additional logic.  https://review.opendev.org/76068903:54
openstackgerritPaul Ali proposed openstack/python-manilaclient master: Release note for bug#1899325  https://review.opendev.org/76227804:03
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openstackgerritPaul Ali proposed openstack/python-manilaclient master: Implements usage of '-c /--column' instead of additional logic.  https://review.opendev.org/76068904:22
openstackgerritPaul Ali proposed openstack/python-manilaclient master: Implements usage of '-c /--column' instead of additional logic.  https://review.opendev.org/76068904:25
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openstackgerritMerged openstack/puppet-manila master: Replace deprecated UPPER_CONSTRAINTS_FILE variable  https://review.opendev.org/76223213:07
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openstackgerritPaul Ali proposed openstack/python-manilaclient master: Implements usage of '-c /--column' instead of additional logic.  https://review.opendev.org/76068918:11
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tbarrongouthamr: couple questions on that zfs retry the unmount patch when you have a chance.22:04
gouthamrtbarron: sure, wassup?22:04
tbarronI don't remember the history but:22:04
tbarron1) did we ever try with a "lazy unmount" -- `umount -l` ?22:04
gouthamryes22:05
tbarrondoesn't help?  or another problem?22:05
gouthamrit doesn't seem to help, from what i understood, the umount is working, but it takes a while to remove the mounts from the other namespaces22:06
gouthamrso what worked was adding a five second sleep after the umount22:06
tbarronok, so zfs destroy fails even if the umount succeeds22:06
gouthamryep22:07
gouthamri'm seeing the same issue with LVM right now - and i'm attempting a very similar fix22:07
tbarron2) did we ever try renaming the mount out of the way to Trash and actually doing the zfs destroy on the contents of Trash later22:07
tbarron?22:07
tbarronI'm not necessarily advocating for #2 now.22:08
tbarronstrike 'necessarily'22:08
tbarronI'm not and will +2 the fix22:08
tbarronbut22:08
tbarronif we ever didn't want to block on the zfs delete it could be an option22:08
gouthamrthat's an interesting approach - we could save the dataset somewhere and perform a lazy deletion if destroy fails22:08
tbarronyeah, more to keep in our hip pockets22:09
gouthamralthough this is a corner case no?22:09
tbarronprobably22:09
tbarronif I were running zfs on linux as a production back end I might want to look into #@22:09
tbarron#222:09
gouthamri mean, its rare for anyone to want to mount the share on the same host as the server... even when using share migration, i'd expect the data service to be running elsewhere22:09
tbarronI could make something up :D22:10
tbarronall-in-one zfs edge appliance22:10
tbarronbut point taken22:10
tbarron+2 on the fix, I was just interested22:11
tbarronin the history22:11
gouthamrack, me too - it feels like we've run into unmount issues as we transitioned to newer versions of linux22:11
gouthamri remember tackling lvm unmount/deletion issues when testing bionic (and they recur in a different way in focal)22:12
tbarronyeah, thanks for pushing these fixes.22:12
gouthamrand the history with this bug was captured in https://bugs.launchpad.net/neutron/+bug/154672322:12
openstackLaunchpad bug 1546723 in neutron "dnsmasq processes inherit system mounts that should not be inherited" [Low,Invalid]22:12
gouthamrbswartz/vponomaryov were testing trusty tahir22:12
gouthamri vaguely recall discussing bswartz's analysis as he's posted it: "Based on this evidence, I'm going to say that I don't believe this is a bug in Neutron. Linux mount namespaces are behaving as intended and we just need to exercise extra care around them."22:14
gouthamrthanks for reviewing tbarron22:20
tbarrongouthamr: yw, i'll be afk for a while but will look for lvm fix later22:22
gouthamrno problem! tc!22:22
openstackgerritGoutham Pacha Ravi proposed openstack/manila-tempest-plugin master: [ci] Switch generic driver job to focal fossa  https://review.opendev.org/76221822:32
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