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When activating a merging origin it is valid, and expected, to not have
a node in the deptree for both the origin and its merging snapshot. The
_cached_info() caller is only concerned with whether a device is open.
If there isn't a node in the tree the associated device is definitely
not open.
depending on if the mirror has a 'core' or 'disk' log. When there
is a disk log, the new leg is added by stacking a new mirror on
top of the old (one leg is the old mirror and the other leg is the newly
added device). When the log is a 'core' log, the new leg is simply added
to the existing mirror and all the devices are re-synced.
The logic that handles collapsing the stacked 'disk' log mirror was
having the effect of causing 'core' logged mirrors to begin resync'ing
for a second time. I have used the 'CONVERTING' flag to indicate that
a mirror is converting by way of stacking. This is no longer set for
up-converting core logs. The final 'collapse' logic can safely be skipped
for 'core' log mirrors - getting rid of the second resync.
Signed-off-by: Jonathan Brassow <jbrassow@redhat.com>
where we should not expose internal VG names/uuids (the ones with "#" prefix )through the
interface. Otherwise, we could end up with library users opening internal VGs which will
initiate locking mechanism that won't be cleaned up properly.
"#orphans_{lvm1, lvm2, pool}" names are treated in a special way, they are truncated first
to "orphans" and this is used as a part of the lock name then (e.g. while calling lvm_vg_open()).
When library user calls lvm_vg_close(), the original name "orphans_{lvm1, lvm2, pool}"
is used directly and therefore no unlock occurs.
We should exclude internal VG names and uuids in the lists provided by lvmcache:
lvmcache_get_vgids() and lvmcache_get_vgnames().
Allow the number of logical extents to be expressed (for a snapshot) as
a percentage of the total space in the Origin Logical Volume with the
suffix %ORIGIN.
Update the relevant man pages accordingly. Eliminate inconsistencies
between the man pages and tools/commands.h
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
*_safe. This had the effect of segfaulting the log daemon when
converting a mirror from one log type to another.
Signed-off-by: Jonathan Brassow <jbrassow@redhat.com>
When activation of pvmove mirror fails on cluster, some nodes
still possibly succeeded in activation.
- Explicitly deactivate that mirror to be sure
- properly pair suspend/resume calls to not cause memory lock problems in clvmd
Code cannot simply call _finish_pvmove on cluster in this situation, because
changed LVs are suspended twice (causing memory inbalance) and also temporary
mirror is activated when it is not expected (and we know that it failed already).
Patch prepares special function which remove temporary mirror references from
metadata and then resumes changed LVs.
In dev_manager_info 0 means error and 1 info is returned,
not that device exists (that value is part of info struct).
Fix query by uuid only (no name) which returns 0 when device
does not exist.
Support "wait before testing" using '+' in pvmove and lvconvert
interval. Doing so overrides the new default of sleeping after checking
the LV's progress.
Sleeping before checking progress can lead to extraneous polldaemons
being left running. These polldaemons would have otherwise exited had
they checked before sleeping. Checking progress before sleeping helps
workaround the subtly unreliable nature of "finished" state checking
in _percent_run.
Update test/t-mirror-names.sh to use '+' when providing its lvconvert
interval.
more descriptive message if locking fails instead of
"Locking type -1 initialisation failed."
Use read-only locking instead of misleading ignorelocking option
in message.
For mirror repair (and similar tasks) it can happen that full
device rescan is issued from clvmd.
Because code can be in the middle of repair (calling suspend)
clvmd should never try to scan suspended devices
(otherwise it causes deadlock).
Also code must not change ignore_suspended_device flag when
doing refresh_filters (called from lvmcache scan code).
bitmap tracking was switched from the e2fsprogs implementation to
the device-mapper implementation (dm_bitset_t). The latter has a
leading uin32_t field designed to hold the number of bits that are
being tracked. The code was not properly handling this change in
all places. Specifically, when getting the bitmap to/from disk.
Endian adjustments will likely need to be made on the accounting
field as well, since bitmaps are passed between machines on
start-up.
Signed-off-by: Jonathan Brassow <jbrassow@redhat.com>
This spurious 'break' has been here since this code was first committed
in June 2005 and stopped the algorithm behaving as described in the
comment above it and rendered the variable 'already_found_one' useless.
