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To be able to detect lvm2 command is not leaking some
'unexpected' device - remove all devices before
test exits by its own command so test teardown
now can check what was 'left' unexpectedly.
Use LVM_DBUSD_TEST_MODE env variable to customize what we test.
Default is the same where we try to test all combinations of all
modes. Renamed to make it consistent with the other env variables
that are used in the unit test.
- We check that all properties match the introspection data. We
don't verify values for every property as only lvm knows what they
should be.
- We are testing vg.Move
The default dbus python library mode of operation is to leverage
introspection. However, this introspection data isn't accessible
for users of the library and they have to specifically retrieve
the introspection data too. This resulted in many introspection
calls being made. This change eliminates introspection calls if
we are testing multiple concurrent test clients. If it's a single
client we will leverage a reduced amount of introspection data to
verify the introspection data is correct. Typically clients don't
leverage introspection data nearly as much as this test client.
The env variable LVM_DBUSD_PV_DEVICE_LIST when present and filled in
with at least 4 physical devices will run concurrently with other
instances running as long as they specify different devices in their
env variable.
When the env variable is not present the test runs as it did before.
Looks like this isn't support across versions. Need to add functionality
to service to return the supported segment types, so we only use the
supported ones.
0 interval leads as of now to a busy loop with lvmetad and command.
Avoid testing this patological case.
TODO: Code should possibly translate zero interval into some small
sleep. With lvmpolld it's already 1/10s
Add new targets:
make check_lvmpolld
make check_cluster_lvmpolld
make check_lvmetad_lvmpolld
make check_all_lvmpolld
So check_lvmetad runs only base lvmetad test - to much
logic of remaining targets.
Previous behavior is available via check_all_lvmpolld.
Check for dm-raid target version with non-standard raid4 mapping expecting the dedicated
parity device in the last rather than the first slot and prohibit to create, activate or
convert to such LVs from striped/raid0* or vice-versa in order to avoid data corruption.
Add related tests to lvconvert-raid-takeover.sh
Resolves: rhbz1388962
On conversions between striped/raid0* and raid4, the kernel expects
the dedicated raid4 parity SubLVs in the first segment area rather than
in the last it's been allocated to, thus the data mapping ain't proper.
Enhance lvconvert (lib/metadata/raid_manip.c) to shift the dedicated
parity SubLVs on conversions from striped/raid0* to raid4 and vice-versa.
In case of raid0_meta -> raid4 where the MD raid0 personality already has
stored RAID array device positions in the superblocks, the MetaLVs have to
be cleared so that the kernel doesn't fail validating the array positions
after lvm has shifted them up by one.
Add more tests to lvconvert-raid-takeover.sh including one to check for
mapping flaws by converting a created raid4 with filesystem -> striped
and fsck it.
Whilst on it:
- add missing direct striped -> raid4 conversion to the takeover array
to avoid an intermim conversion from striped -> raid0*
- clean up the takeover array
- allow lvconvert to actually call lv_raid_convert() on all takeover requests
in order to check parameters and display messages provided by takeover
functions rather than just "...not supported" from within lvconvert
- fix a typo
Resolves: rhbz1386148
This test never passes on loop back, so we will skip unless the
pv devices are real devices which contain `/dev/sd`.
We always fail because we need lvm to run slow to get a timer to
pop, and loopback are too fast.
If you run multiple runs of unittest.main, unless you don't pass exit=true
the test case always ends with a 0 exit code. Add ability to store the
result of each invocation of the test and exit with a non-zero exit code
if anyone of them fail.
Fix missing wait so we have paired waiting.
Also 'wait' for precise PID to get 'exit' code.
Test for 'error' replacing only with newer snapshot targets.
The old one will wait for resume.
Note: 'wait -n' is not always available so can't be used..
Pre 1.9 dm-raid targets status output was racy, which caused
the device status chars to be unreliable _during_ synchronization.
This shows paritcularly with tiny test devices used.
Enhance lvchange-rebuild-raid.sh to not check status
chars _during_ synchronization. Just check afterwards.
Though I'm not quite sure why we push this limit on user,
current --repair logic requires user to wait outside of command.
TODO: I'm not quite sure this repair logic is 'the most wanted'.
The dm-raid target now rejects device rebuild requests during ongoing
resynchronization thus causing 'lvconvert --repair ...' to fail with
a kernel error message. This regresses with respect to failing automatic
repair via the dmeventd RAID plugin in case raid_fault_policy="allocate"
is configured in lvm.conf as well.
Previously allowing such repair request required cancelling the
resynchronization of any still accessible DataLVs, hence reasoning
potential data loss.
Patch allows the resynchronization of still accessible DataLVs to
finish up by rejecting any 'lvconvert --repair ...'.
It enhances the dmeventd RAID plugin to be able to automatically repair
by postponing the repair after synchronization ended.
More tests are added to lvconvert-rebuild-raid.sh to cover single
and multiple DataLV failure cases for the different RAID levels.
- resolves: rhbz1371717
