1
0
mirror of git://sourceware.org/git/lvm2.git synced 2024-12-21 13:34:40 +03:00
Commit Graph

5 Commits

Author SHA1 Message Date
David Teigland
eebb5e9fff tests: add debug to pvscan-cache deactivation 2019-05-23 15:32:46 -05:00
David Teigland
e055b89d28 tests: pvscan-cache more attempts to fix 2019-05-23 14:55:57 -05:00
David Teigland
2036608423 tests: pvscan-cache try to fix teardown problems
teardown after the test was failing, probably because
of uncoordinated udev actions running on the test
system.  Try to avoid this by doing some work before
teardown.
2019-05-22 11:55:48 -05:00
David Teigland
74a388cca1 pvscan: autoactivate a VG once
When a VG has multiple PVs, and all those PVs come online
at the same time, concurrent pvscans for each PV will all
create the individual pvid files, and all will often see
the VG is now complete.  This causes each of the pvscan
commands to think it should activate the VG, so there
are multiple activations of the same VG.  The vg lock
serializes them, and only the first pvscan actually does
the activation, but there is still a lot of extra overhead
and time used by the other pvscans that attempt to
activate the already active VG.  This can lead to a backlog
of pvscans and timeouts.

To fix this, this adds a new /run/lvm/vgs_online/ dir that
works like the existing /run/lvm/pvs_online/ dir.  Each pvscan
that wants to activate a VG will first try to exlusively create
the file vgs_online/<vgname>.  Only the first pvscan will
succeed, and that one will do the VG activation. The other
pvscans will find the vgname file exists and will not do the
activation step.

When a PV goes offline, the vgs_online file for the corresponding
VG is removed.  This allows the VG to be autoactivated again
when the PV comes online again.  This requires that the vgname be
stored in the pvid files.
2019-02-21 15:17:41 -06:00
David Teigland
06439a2562 tests: autoactivation tests for use without lvmetad
Adjust a few lvmetad pvscan/autoactivation tests to be
used without lvmetad, and add a test to cover some cases
that have not been tested before.
2018-07-10 10:49:34 -05:00