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Introduce a replacement vdo manager wrapper for testing.
When using test suite on a system without vdo manager (which has got
deprecated) - we still need its functionality to prepare 'vdo volume'
for testing lvm_import_vdo.
Wrapper currently need 2 binaries from older 'vdo 6.2' package -
to be named:
oldvdoformat - format VDO metadata with older format
oldvdoprepareforlvm - shift vdo metadata by 1MiB
Add tool 'vdoimport' to support easy conversion of an existing VDO manager managed
VDO volumes into lvm2 managed VDO LV.
When physical converted volume is already a logical volume, conversion
happens with the VG itself, just with validation for extent_size, so
the virtually sized logical VDO volume size can be expressed in extents.
Example of basic simple usage:
vdoimport --name vg/vdolv /dev/mapper/vdophysicalvolume
When execute IDM testing, the command reports error:
/usr/bin/install: cannot stat ‘lib/idm_inject_failure’: No such file
or directory
Since there have a stale program in my local environment, thus Makefile
always uses the stale program and doesn't report any issue. In the
brand new repository, it doesn't contain an idm_inject_failure program,
and Makefile doesn't build it without specifying the dependency, thus
the test command complaints the file 'idm_inject_failure' is not found.
This patch adds the dependency 'lib/idm_inject_failure' for IDM testing,
so it can firstly build the injection program and dismiss the error.
Signed-off-by: Leo Yan <leo.yan@linaro.org>
This patch is to add VG testing on multi hosts. There have two scripts,
the script multi_hosts_vg_hosta.sh is used to create VGs on one host,
and the second script multi_hosts_vg_hostb.sh afterwards will acquire
global lock and VG lock, and remove VGs. The testing flow verifies the
locking operations between two hosts with lvmlockd and the backend
locking manager.
On the host A:
make check_lvmlockd_idm \
LVM_TEST_BACKING_DEVICE=/dev/sdj3,/dev/sdk3,/dev/sdl3 \
LVM_TEST_MULTI_HOST=1 T=multi_hosts_vg_hosta.sh
On the host B:
make check_lvmlockd_idm \
LVM_TEST_BACKING_DEVICE=/dev/sdj3,/dev/sdk3,/dev/sdl3 \
LVM_TEST_MULTI_HOST=1 T=multi_hosts_vg_hostb.sh
Signed-off-by: Leo Yan <leo.yan@linaro.org>
When the drive failure occurs, the IDM lock manager and lvmlockd should
handle this case properly. E.g. when the IDM lock manager detects the
lease renewal failure caused by I/O errors, it should invoke the kill
path which is predefined by lvmlockd, so that the kill path program
(like lvmlockctl) can send requests to lvmlockd to stop and drop lock
for the relevant VG/LVs.
To verify the failure handling flow, this patch introduces an idm
failure injection program, it can input the "percentage" for drive
failures so that can emulate different failure cases.
Signed-off-by: Leo Yan <leo.yan@linaro.org>
This patch is to introduce testing option LVM_TEST_LOCK_TYPE_IDM, with
specifying this option, the Seagate IDM lock manager will be launched as
backend for testing. Also add the prepare and remove shell scripts for
IDM.
Signed-off-by: Leo Yan <leo.yan@linaro.org>
user creates a file listing real devices they want
lvm tests to use, and sets LVM_TEST_DEVICE_LIST.
lvm tests can use these with prepare_real_devs
and get_real_devs.
Other aux functions do not work with these devs.
With the move to top-level makefile - there are some issues
with subdir recursive makefile.
Make the building more tolerant for now until fully resolved.
It's very hard to use some 'non-recurive' Makefiles with
rest of system running 'recursively'.
So ATM drop inclusion of subdir makefile and add support
for 2 new top-level targets:
unit-test (builds test/unit dir)
run-unit-test (build & run test/unit/unit-test run)
Currently usage of loop device over backend file in ramdisk (tmpfs)
is actually causing unnecassary memory consution, since just
reading such loop device is causing RAM provisioning.
This patch add another possible way how to use ramdisk directly
through 'brd' device when possible (and allowed).
This however has it's limitation as well - brd does not support
TRIM, so the only way how to erase is to remove brd module ??
Alse there is 4K sector size limitation imposed by ramdisk.
Anyway - for some mirror test that were using large amount of
disk space (tens of MB) this brings noticable speed boost.
(But could be worth to solve the slowness of loop in kernel?)
To prevent using 'brd' for testing set LVM_TEST_PREFER_BRD=0
like this:
make check_local LVM_TEST_PREFER_BRD=0
