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some tests left dangling bg processes originating in
lvm2 commands being able to spawn any bg polling process
(lvchange, vgchange, pvmove, lvconvert...)
Initial fn 'add_to_kill_list' should collect processes with
specific parameters (proc's command line and parent processes ID).
After testing finishes the fn kill_listed_processes should remove these
listed by 'add_to_kill_list'.
Unfortunately it proved to be prone to an error especially in scenarios
where cmd line of initiating command contained characters required to
be espaced before passing to shell script to make it work correctly.
(Or if cmd spawned more than one bg process with same cmd line. i.e.:
vgchange or lvchange).
The new implementation is much simpler. It uses env. variable (LVM_TEST_TAG)
for marking a process desired to be killed later or during test env. teardown.
(i.e.: LVM_TEST_TAG=kill_me_$PREFIX to kill only processes related to
current test environment)
When test is executed on real device - lets try a more complete
cleanup - discard whole device first and try to wipe any
headers it might be left from previous test.
When test suite is used from installed rpm package
we need to handle things better.
This patch is rather first approach - expecting few more
tweaks needed.
At this moment LVM_LOG_FILE_EPOCH with
LVM_EXPECTED_EXIT_STATUS properly deletes debug logs
only for real commands - support for lvm2 API does not yet
exists
Enhance 'not' to manage autodeletion of log files in right cases.
Use separately marked epoch log files for clvmd and dmeventd.
Properly manage stack tracing for new debug.log names.
Previous commit has made have_cache & have_thin producing
false return value.
Fix it and at the some time provide much better reconfiguring
warning message.
If the test machine is missing needed and configured binaries
it will produce TEST WARNING result.
When a var like LVM_TEST_THIN_CHECK_CMD is set to ""
(which is valid) we need to correctly use '-'.
Otherwise ':-' replaces such value with built-in default.
Put in pvmove background process into list quickly.
Update API for aux add_to_kill_list()/kill_listed_processes().
Run on 'background' (&) only non-background pvmoves.
If the system is correctly configure (cache & thin tools are present)
avoid 'extra' rebuild of configuration.
On the other hand - if some tool is missing - duplicate ##LVMCONF should
make it more straighforward to see.
Reenable TESTDIR & PREFIX replacement.
Since we need to replace string in proper order (1st. @TESTDIR@,
2nd. @PREFIX@), drop map and use plain string.
Drop timestamp logging when 'stacktracing'
Added lvm_vg_write in the addTag/removeTag paths to make the
changes persist. Added unit test to ensure functionality.
https://bugzilla.redhat.com/show_bug.cgi?id=1210020
Signed-off-by: Tony Asleson <tasleson@redhat.com>
When clvmd starts, it starts it's own command logging into debug.log.
This is interferring with our other command debug.log.
As as sideeffect we may experience log from command,
followed but lots of zeros and continued with clvmd log.
Fix it by renaming debug.log and now we could also print this trace
to get full list of clvmd activity nicely.
Also improve some post-mortem prints from udevadm and dmsetup to
make the output more usable.
Since now we have metadata parts running with normal speed,
we could avoid reinitilising delayed dev for every test.
(Saving seconds on cookie waits...)
Use common code for error_dev & delay_dev.
Both functions now take list of sectors.
From now on we could delay just 'extent' section, while
keeping running lvm commands fast (having native metadata area).
We cannot print TEST WARNING within test shell script
(since it's running in debug mode and thus always prints it)
Use 'should false' trick let the string printed in this case.
So 'non cluster cases' should now end properly.
If the kernel has 'new lcm()' (3.19) it provides wrong
optimal_io_size value for dm device so lvm2 command cannot
create properly aligned devices.
Use 'should' for this case - so test ends with 'TEST WARNING'.
Improve testing for condition that pvmove0 is already running in the
table (so we do not kill pvmove while it has loaded target, but
it's not yet Live).
Also delay_dev for 200ms.
When we use /dev/loopX device - shift first PV1 sector by 1M
so /dev/loop0 and dm device do not appear as same device.
Also notify lvmetad once 'devs' are created - so in case this
command is called in the middle of test - lvmetad properly
drops its metadata for these devices.
Drop used test.img file between reuse so the 'prepare_vg'
always starts with zeroed disks.
When LVM_TEST_AUX_TRACE is set, allow shell tracing of aux commands.
There is no reason to support persistent major/minor numbers
for pool volumes - it's only meant to be supported for filesystems
(since i.e. nfs may need to keep volume on a persistent device node.)
Support for pools is now explicitely disabled and documented.
Metadata areas which are marked as ignored should not be scanned
and read during pvscan --cache. Otherwise, this can cause lvmetad
to cache out-of-date metadata in case other PVs with fresh metadata
are missing by chance.
Make this to work like in non-lvmetad case where the behaviour would
be the same as if the PV was orphan (in case we have no other PVs
with valid non-ignored metadata areas).
Simplify the function usage and clean up parameter parsing.
There were 2 significant changes made in the test itself
(they passed before because of incorrect shell string handling)
-pvs_sel 'tags="pv_tag1"' "$dev1 $dev2"
+sel pv 'tags="pv_tag1"' "$dev1" "$dev6"
-lvs_sel '(lv_name=vol1 || lv_name=vol2) || vg_tags=vg_tag1' "vol1 vol2
abc orig snap"
+sel lv '(lv_name=vol1 || lv_name=vol2) || vg_tags=vg_tag1' vol1 vol2
orig snap xyz
