IF YOU WOULD LIKE TO GET AN ACCOUNT, please write an
email to Administrator. User accounts are meant only to access repo
and report issues and/or generate pull requests.
This is a purpose-specific Git hosting for
BaseALT
projects. Thank you for your understanding!
Только зарегистрированные пользователи имеют доступ к сервису!
Для получения аккаунта, обратитесь к администратору.
This prevents 'lvremove vgname' from attempting to remove the
hidden sanlock LV. Only vgremove should remove the hidden
sanlock LV holding the sanlock locks.
tools/polldaemon.c:457: array_null: Comparing an array to null is not useful: "lv->lvid.s"
The lv->lvid.s is never NULL. The check was supposed to be *lv->lvid.s
to check if the string is not empty.
... Using uninitialized value "lockd_state" when calling "lockd_vg"
(even though lockd_vg assigns 0 to the lockd_state, but it looks at
previous state of lockd_state just before that so we need to have
that properly initialized!)
libdm/libdm-report.c:2934: uninit_use_in_call: Using uninitialized value "tm". Field "tm.tm_gmtoff" is uninitialized when calling "_get_final_time".
daemons/lvmlockd/lvmlockctl.c:273: uninit_use_in_call: Using uninitialized element of array "r_name" when calling "format_info_r_action". (just added FIXME as this looks unfinished?)
The lvmconfig --type full is actually a combination of --type current
and --type missing together with --mergedconfig options used.
The overall outcome is a configuration tree with settings as LVM sees
it when it looks for the values - that means, if the setting is defined
in some config source (lvm.conf, --config, lvmlocal.conf or any profile
that is used), the setting is used. Otherwise, if the setting is not
defined in any part of the config cascade, the defaults are used.
The --type full displays exactly this final tree with all the values
defined, either coming from configuration tree or from defaults.
We shouldn't be adding spaces by default in output as that
may be be used already in scripts and especially for the eval
in shell scripts where spaces are not allowed between key
and value!
Add --withspaces option to lvmconfig for pretty output with
more space in for readability.
Just as 'e' means activation with an exclusive lock,
add an 's' to mean activation with a shared lock.
This allows the existing but implicit behavior of '-ay'
of clvm LVs to be specified explicitly. For local VGs,
asy simply means ay, just like aey means ay.
For local VGs, ay == aey == asy
For clvm VGs, ay == asy, aey == aey, asy == asy
The hyphens are removed from long option names before
being read. This means that:
- Option name specifications in args.h must not include hyphens.
(The hyphen in 'use-policies' is removed.)
- A user can include hyphens anywhere in the option name.
All the following are equivalent:
--vgmetadatacopies,
--vg-metadata-copies,
--v-g-m-e-t-a-d-a-t-a-c-o-p-i-e-s-
Commit b00711e312 improperly
convert _area_missing() replacment and moved check for
AREA_PV seg_type() into same if() section.
Signed-off-by: Lidong Zhong <lzhong@suse.com>
There's a race when asking lvmpolld about progress_status and
actually reading the progress info from kernel:
Even with lvmpolld being used we read status info from
LVM2 command issued by a user (client side from lvmpolld perspective).
The whole cycle may look like following:
1) set up an operation that requires polling (i.e. pvmove /dev/sda)
2) notify lvmpolld about such operation (lvmpolld_poll_init())
3) in case 1) was not called with --background it would continue with:
4) Ask lvmpolld about progress status. it may respond with one of:
a) in_progress
b) not_found
c) finished
d) any low level error
5) provided the answer was 4a) try to read progress info from polling LV
(i.e. vg00/pvmove1). Repeat steps 4) and 5) until the answer is != 4a).
And now we got into racy configuration: lvmpolld answered with in_progress
but it may be the that in_between 4) and 5) the operation has already
finished and polling LV is already gone or there's nothing to ask for.
Up to now, 5) would report warning and it could print such warning many
times if --interval was set to 0.
We don't want to scary users by warnings in such situation so let's just
print these messages in verbose mode. Error messages due to error while
reading kernel status info (on existing, active and locked LV) remained
the same.
currently in wait_for_single_lv() fn trying to poll missing pvmove LV
is considered success. It may have been already finished by another
instance of polldaemon. either by another forked off polldaemon
or by lvmpolld.
Let's try to handle the mirror conversion and snapshot merge the same
way.
These wrappers have been replaced by direct calls
to vg_read() and find_lv() in previous commits.
This commit should have no functional impact since
all bits were already unreachable.
let's call dev_close_all() only before we're about to 'sleep'
for at least one second during the polling.
(it's questionable whether to call dev_close_all() at all in
polldaemon code. Natural extension would be to drop it completely)
More exact clean of library exported symbols files.
Also use $(firstword) test to check for empty string
so 'make clean' has now cleaner condensed look.
Clean also created include links.
we don't want to fail properly set pvmove after metadata
update. failure to copy id components could end with dangling
mirror moving PV segments but no monitoring from lvmpolld or
classical polldaemon.
lvpoll now process passed LV name properly. It respects
LVM_VG_NAME env. variable and is able to process LV name
passed in various formats:
- VG/LV
- LV name only (with LVM_VG_NAME set)
- /dev/mapper/VG-LV
- /dev/VG/LV
In process_each_{vg,lv,pv} when no vgname args are given,
the first step is to get a list of all vgid/vgname on the
system. This is exactly what lvmetad returns from a
vg_list request. The current code is doing a vg_lookup
on each VG after the vg_list and populating lvmcache with
the info for each VG. These preliminary vg_lookup's are
unnecessary, because they will be done again when the
processing functions call vg_read. This patch eliminates
the initial round of vg_lookup's, which can roughly cut in
half the number of lvmetad requests and save a lot of extra work.
querying future lvmpolld with zero wait time is highly undesirable
and can cause serious performance drop of the future daemon. The new
wrapper function may avoid immediate return from syscal by
introducing minimal wait time on demand.
Routines responsible for polling of in-progress pvmove, snapshot merge
or mirror conversion each used custom lookup functions to find vg and
lv involved in polling.
Especially pvmove used pvname to lookup pvmove in-progress. The future
lvmpolld will poll each operation by vg/lv name (internally by lvid).
Also there're plans to make pvmove able to move non-overlaping ranges
of extents instead of single PVs as of now. This would also require
to identify the opertion in different manner.
The poll_operation_id structure together with daemon_parms structure they
identify unambiguously the polling task.
Waiting even after _check_lv_status returned success and
'finished' flag was set to true doesn't make much sense.
Note that while we skip the wait() we also skip the
init_full_scan_done(0) inside the routine. This should
have no impact as long as the code after _wait_for_single_lv
doesn't presume anything about the state of the cache.
as a part of bigger effort to unify polling intefaces
poll_get_copy_lv should be able to look up LVs based
on theirs lv->status field.
Effective after pvmove starts using poll_get_copy_lv
fn as well.
