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various dmeventd plug-ins into a new function called 'dmeventd_lvm2_command',
but the new function did not strip off the "_mlog" extentions that the
mirror plug-in had been doing. This created bug 794904 - failure to replace
devices in a redundant log.
The test suite did catch this scenario because it performs repair tests (mainly)
through the CLI and not dmeventd. It's also not easy to test because the test
itself will hang if the bug is encountered.
When vg_read fails, it internally unlocks VG if it's been locked,
so in error path we should skip unlock_vg for this case.
(user would see ugly internal warning)
Add make help target.
Add LVM_TEST_PARALLEL to support parallel runs of tests
Work around the problem the dmsetup table/info may return error
by using dmtable and dminfo function that will use 'should'.
(Error happens when some concurently running process removes table
entry while dmsetup command resolves table entries inside the loop.)
Activation on remote node should be tried only if it is masked by tags
locally (like when hosttags enabled, IOW activate_lv_excl_local()
doesn't return error.)
Introduced change caused that lvchange -aey succeeded even if volume was
activated exclusively remotely.
Calling vgscan alone should reuse information from the lvmetad (if running).
The --cache option should initiate direct device scan and update lvmetad
appropriately (if running).
This is mainly for vgscan to behave consistently compared to pvscan.
locally or on more nodes while others are activated exclusively.
Current pvmove code can either use local mirror (for exclusive
activation) or cmirror (for clustered LVs).
Because the whole intenal pvmove LV is just segmented LV containing
segments of several top-level LVs, code cannot properly handle
situation if some segment need to be activated exclusively.
Previously, it wrongly activated exclusive LV on all nodes
(locing code allowed it) but now this is no lnger possible.
If there is exclusively activated LV, pvmove is only
possible if all affected LVs are aslo activated exclusively.
(Note that in non-exclusive mode pvmove still activates LVs
on other nodes during move.)
# lvchange -aly vg_test/lv1
# lvchange -aey vg_test/lv2
# pvmove -i 1 /dev/sdc
Error locking on node bar-01: Device or resource busy
Error locking on node bar-03: Volume is busy on another node
...
Failed to activate lv2
In this case we should allow to use local mirror, check for cmirror
should apply only for lvconvert/lvcreate.
Introduced in 2.02.86 by removing !(lv->status & ACTIVATE_EXCL).
(Partially workaround, it is minimalistic patch for now.)
Code adds better support for monitoring of thin pool devices.
update_pool_lv uses DMEVENTD_MONITOR_IGNORE to not manipulate with monitoring.
vgchange & lvchange are checking real thin pool device for existance
as we are using _tpool real device and visible LV pool device might not
be even active (_tpool is activated implicitely for any thin volume).
monitor_dev_for_events is another _lv_postorder like code it might be worth
to think about reusing it here - for now update the code to properly
monitory thin volume deps.
For unmonitoring add extra code to check the usage of thin pool - in case it's in use
unmonitoring of thin volume is skipped.
Make the teardown really usable - it will try down to remove all the left
devices even from previous test runs
(the only missing piece is probably proper mdadm teardown)
Add few more local vars
Try to setup PATH and LD_LIBRARY_PATH just once.
Try shorter sleeps.
Actually restart was failing for different reason - so pass in proper
location of dmeventd for restart from lvm command and avoid using
the one from /sbin location.
Update pv create test with "" around path.
There are kernel drivers (smblk) which set '-1' as their device major number.
This number is listed in /proc/devices then - but the kernel itself is using
just 12 bits - thus device is accessible via 4095 - there is posted patch
for 3.4 to fix this behavior (0 for auto allocation was mean to be used).
However to still allow using such devices with older kernels add some code
to use same behavior - so cut 12 bits from the major number from /proc/devices.
For now use log_warn() - maybe the severity of the message could be lowered
to just verbose level.
Indent
Shell improvements - use internal function for checks
Use PVs in "" (LV and VG cannot have spaces)
Several test very starting 'dmeventd' without annoucing
it via prepade_dmeventd.
Fix some of test actually.
Indent
Better shell usage
Function simplification
More usage of 'get' functions
Don't use valgrind tracing for check and get function (faster)
Update shell debugging (PS4, better stacktrace)
Support paths with spaces
Export SCRIPTNAME for external usage
Watch for dmeventd unexpectedly started during test
Indent
Add valgrind support:
env LVM_TEST_VALGRIND={0123} (the higher level, more commands tested)
env LVM_TEST_CLVMD=1 runs clvmd within valgrind.
env VALGRIND script name executed for each lvm command (def. is valg).
Smarted teardown - should minimize occurence of left dev entries
(using dmsetup remove -f only as last resort)
sort removed devices by open count before actual removal
Use "" around string that may contain spaces.
Set log/verbose and activation/retry_deactivation to defined value.
Remove debug.log after successful lvm command (easier to check output).
