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The problem as reported by "ben <benscott@nwlink.com>" on lvm-devel:
vgsplit fails with mirrored mirror log
#lvs --all -o lv_name,lv_attr,devices
LV Attr Devices
MyMirror mwi--
[MyMirror_mimage_0] Iwi--- /dev/sdq(0)
[MyMirror_mimage_1] Iwi--- /dev/sdo(0)
[MyMirror_mimage_2] Iwi--- /dev/sdi(0)
[MyMirror_mlog] mwi---
[MyMirror_mlog_mimage_0] Iwi--- /dev/sds(0)
[MyMirror_mlog_mimage_1] Iwi--- /dev/sde(0)
#vgsplit -v "TestA" "TestB" "/dev/sdq" "/dev/sdo" "/dev/sdi" "/dev/sds"
"/dev/sde"
Checking for volume group "TestA"
Checking for new volume group "TestB"
Archiving volume group "TestA" metadata (seqno 213).
Can't split mirror MyMirror between two Volume Groups
AFTER FIX:
[root@bp-01 ~]# lvs -a -o name,vg_name,devices vg new
Volume group "new" not found
Skipping volume group new
LV VG Devices
lv vg lv_mimage_0(0),lv_mimage_1(0)
[lv_mimage_0] vg /dev/sdb1(0)
[lv_mimage_1] vg /dev/sdc1(0)
[lv_mlog] vg lv_mlog_mimage_0(0),lv_mlog_mimage_1(0)
[lv_mlog_mimage_0] vg /dev/sdh1(0)
[lv_mlog_mimage_1] vg /dev/sdi1(0)
[root@bp-01 ~]# vgsplit vg new /dev/sd[bchi]1
New volume group "new" successfully split from "vg"
[root@bp-01 ~]# lvs -a -o name,vg_name,devices vg new
LV VG Devices
lv new lv_mimage_0(0),lv_mimage_1(0)
[lv_mimage_0] new /dev/sdb1(0)
[lv_mimage_1] new /dev/sdc1(0)
[lv_mlog] new lv_mlog_mimage_0(0),lv_mlog_mimage_1(0)
[lv_mlog_mimage_0] new /dev/sdh1(0)
[lv_mlog_mimage_1] new /dev/sdi1(0)
Make limits for thin data_block_size and device_id part of public API.
FIXME: read them possible from some kernel header file in the future ?
But we may need to support different values for different versions ?
Since execve passed only NULL as environ, we had lost all environment vars on
restart - thus actually running 'different' clvmd then the one at start.
Preserving environ allows to restart clvmd with the same settings
(i.e. LD_LIBRARY_PATH)
Add test for second restart.
Since it's internal function and we always check for NULL value
before call - this is safe.
Just for case add nonnull attribute so analyzer might better
catch error.
It's 100% equivalent test - since it always happen for the first iteration.
But the check for 'l' is understandable with analyzers - since analyzer
is not smart enough to deduce connection between root->child == NULL.
Add named cluster_ops to easily learn the name of the active cluster manager,
so we are able to restart singlenode manager in testing.
Add simple test for clvmd -S (restart) and -R (refresh)
(though it needs some extensions).
When running tests it might be useful to have an override option when
testing on real /dev and some broken system (i.e. Debian and its rules).
So one can use:
LVM_TEST_DEVDIR=/dev LVM_VERIFY_UDEV=1 make check
When read in drain returned <0 value, terminal content has been trashed.
Remove unneeded memset() and use whole buffer.
Free readbuf before exit (valgrind).
Next iteration for better fit of lvmetad compilation.
Move build of libdaemon.a into common subdir Makefile.
libdaemon.a is device-mapper target.
Build and install lvmetad as lvm2 target.
Test whether nodes could be used on given filesystem where TMP
dir is being used and skip teardown quicker in fail case.
(makes the problem quickly obvious if you try to such fs).
Skip teardown_dev if we have not created any devs yet.
and do not mkdir /dev/mapper dir when LVM_TEST_DEVDIR is set.
Drop this test from t-000-basic.sh.
Read 2 environmental vars to learn about overide position for
CLVMD and LVM binaries.
We support LVM_BINARY in other script - and this way we could easily
test restart in our test-suite.
