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activated.
In order to achieve this, we need to be able to query whether
the origin is active exclusively (a condition of being able to
add an exclusive snapshot).
Once we are able to query the exclusive activation of an LV, we
can safely create/activate the snapshot.
A change to 'hold_lock' was also made so that a request to aquire
a WRITE lock did not replace an EX lock, which is already a form
of write lock.
Simultaneous -a and --refresh is not valid.
poll+monitor are valid together with or without -ay* (but not with -an*)
No longer print polling results summary if no LVs in the VG were polled.
Update logic in vgchange to handle --vgmetadatacopies, allow
--metadatacopies as a synonym to --vgmetadatacopies,
and add these parameters to args.h and commands.h
Forbit both --vgmetadatacopies and --metadatacopies as only
one allowed.
Signed-off-by: Dave Wysochanski <dwysocha@redhat.com>
Activate only the first replicator-dev LV, that activates all other
related LVs from Replicator. In case of error during this activation,
it will not retry again for other heads (less confusing error log).
A shortcut for --ignorelockingfailure, --ignoremonitoring, --poll n options
and LVM_SUPPRESS_LOCKING_FAILURE_MESSAGES environment variable used all at
once in initialisation scripts (e.g. rc.sysinit or initrd).
clvmd does not propagate DMEVENTD_MONITOR_IGNORE.
Update get_activation_monitoring_mode() to check if the VG that the
LV is being activated in is clustered. If so, skip it.
Any get_activation_monitoring_mode() error will cause the associated LV
(or VG) to be skipped during activation. Both vgchange_single() and
lvchange_single(), which call get_activation_monitoring_mode(), are
called by their respective process_each_..() method.
. Add "monitoring" option to "activation" section of lvm.conf
. Have clvmd consult the lvm.conf "activation/monitoring" too.
. Introduce toollib.c:get_activation_monitoring_mode().
. Error out when both --monitor and --ignoremonitoring are provided.
. Add --monitor and --ignoremonitoring support to lvcreate. Update
lvcreate man page accordingly.
. Clarify that '--monitor' controls the start and stop of monitoring in
the {vg,lv}change man pages.
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Pull out common code to be called from tools as well as lvm2app.
Leave archive() at tool level so we can use from vgcreate
as well as vgchange. Should be no functional change.
- add stack macro in vgchange
Signed-off-by: Dave Wysochanski <dwysocha@redhat.com>
Eliminate 'merging_snapshot' from 'struct logical_volume' and just use
'snapshot' for origin lv's reference to the merging snapshot; also set
MERGING in the origin lv's status.
the background polldaemon is allowed to start. It can be used
standalone or in conjunction with --refresh or --available y.
Control over when the background polldaemon starts will be particularly
important for snapshot-merge of a root filesystem.
Dracut will be updated to activate all LVs with: --poll n
The lvm2-monitor initscript will start polling with: --poll y
NOTE: Because we currently have no way of knowing if a background
polldaemon is active for a given LV the following limitations exist and
have been deemed acceptable:
1) it is not possible to stop an active polldaemon; so the lvm2-monitor
initscript doesn't stop running polldaemon(s)
2) redundant polldaemon instances will be started for all specified LVs
if vgchange or lvchange are repeatedly used with '--poll y'
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
I see "Deactivated" message when I activate and "Activated" message when
I deactivate. The code uses "activate" as boolean but it can be any one
of the enum values from CHANGE_AY, CHANGE_AN, CHANGE_AE, etc.
Signed-off-by: Malahal Naineni <malahal@us.ibm.com>
Acked-by: Dave Wysochanski <dwysocha@redhat.com>
(on one node a storage connection failed):
# vgchange -a y vg_bar ; echo $?
Error locking on node bar-02: Refusing activation of partial LV lv1. Use --partial to override.
1 logical volume(s) in volume group "vg_bar" now active
0
So activation fails on one node, error is correctly printed but
status code is wrong.
This patch fixes the top level (vgchange) to return proper code
(and print # of activated LVs).
(lvchange returns error properly here.)
All hidden (not visible) volumes should be activated through
other visible volumes.
(There are already exceptions like snapshot, mirror log and image,
which should be cleaned one day...)
This solves problems for future types of hidden volumes,
which can have special meaning and must not be activated implicitly
(e.g. key store volume).
Similar to other vg_set_* functions, we create a vg_set_clustered() function
which does a few checks and sets a flag. This is where we check for
any limitations of clusters.
Clean up VG_RESIZEABLE flag by creating vg_is_resizeable().
Update comment - we no longer have ALLOW_RESIZEABLE.
Also use vg_is_exported() in one place missed by earlier patch.
Should be no functional change.
Remove the checks for vg_read_error() in most of the tools callback
functions and instead make the check in _process_one_vg() more general.
In all but vgcfgbackup, we do not want to proceed if we get any error
from vg_read(). In vgcfgbackup's case, we may proceed if the backup
is to proceed with inconsistent VGs. This is a special case though,
and we mark it with the READ_ALLOW_INCONSISTENT flag passed to
process_each_vg (and subsequently to _process_one_vg).
NOTE: More cleanup is needed in the vg_read_error() path cases.
This patch is a start.
This patch is all just cleanup and no other patch depends on it.
Replace explicit dereference and check with vg_is_exported().
Update a few copyrights and remove unnecessary whitespace.
Should be no functional change.
We provide a lock type that behaves like no_locking, but is not
clustered. Moreover, it also forbids any write locks. This magically (and
consistently) prevents use of clustered VGs, or changing local VGs with
--ignorelockingfailure. As a bonus, we can remove the special hacks in a few
places. Of course, people looking for trouble can always set their locking_type
to 0 to override.
NOTE: vg_set_alloc_policy() returns success if you try to set a value that
is already stored. The behavior of vgchange is the same though - it fails.
There is a fixme noted in the code about this inconsistency, which should
be resolved if possible.
Signed-off-by: Dave Wysochanski <dwysocha@redhat.com>
In liblvm, we will reserve the word 'change' to mean an API that
both sets one or more values, and commits to disk. This will be
consistent with the LVM commandline. The existing vg_change_pesize()
function does not commit to disk, but just changes the extent_size
and ensures all internal structures are updated. This logic should
be contained in a function that sets the value.
Signed-off-by: Dave Wysochanski <dwysocha@redhat.com>
It would be nice to have one function that does all the validation
and setting of the VG's pesize. However, currently some checks
are in the higher-level function _vgchange_pesize(), and some
checks are in the lower function vg_change_pesize().
This patch moves most of the higher-level checks inside
vg_change_pesize. In one case a failure return code is
changed from ECMD_FAILED to EINVALID_CMD_LINE.
Signed-off-by: Dave Wysochanski <dwysocha@redhat.com>
Sun May 3 12:32:30 CEST 2009 Petr Rockai <me@mornfall.net>
* Rework the toollib interface (process_each_*) on top of new vg_read.
Rebased 6/26/09 by Dave W.
- Add skipping message to process_each_lv
- Remove inconsistent_t.
Several commands calls process_each_vg() and in provided
callback it explicitly recovers VG if inconsistent.
(vgchange, vgconvert, vgscan)
It means that old VG is released and reread but the function
above (process_one_vg) tries to unlock and release old VG.
Patch moves the repair logic into _process_one_vg() function.
It always tries to read vg (even inconsistent) and then decides
what to do according new defined parameter.
Also patch unifies inconsistent error messages.
The only slight change if for vgremove command, where
it now tries to repair VG before it removes if force arg is given.
(It works similar way before, just the order of operation changed).
