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'lvchange --resync LV' or 'lvchange --syncaction repair LV' request the
RAID layout specific parity blocks in raid4/5/6 to be recreated or the
mirrored blocks to be copied again from the master leg/copy for raid1/10,
thus not allowing a rebuild of a particular PV.
Introduce repeatable option '--[raid]rebuild PV' to allow to request
rebuilds of specific PVs in a RaidLV which are known to contain corrupt
data (e.g. rebuild a raid1 master leg).
Add test lvchange-rebuild-raid.sh to test/shell doing rebuild
variations on raid1/10 and 5; add aux function check_status_chars
to support the new test.
- Resolves rhbz1064592
Prepare for new segment type conversion functionality in cases that
currently fail. In the short-term, we need to do this while limiting
the changes to the code paths for the conversions that are already
supported.
introduced with commit 8f62b7bfe5 rely on complete
defintions of the relations between the LVs of a VG.
Hence only run these checks when the complete_vg flag
is set on calls to check_lv_segments().
lvconvert failed in test lvconvert-thin-raid.sh when
calling check_lv_segments() from _read_segments() without
providing a complete definition.
on any thin snap external origin LV which caused a segfault
when none existed as exposed by the vgsplit-thin.sh test.
Only call lv_is_on_pvs() if an external origin LV actually
exists and correct the related splitting logic.
When converting to a cache lv, tests were hanging with a prompt for
"Do you want wipe existing metadata of cache pool volume
To preserve cache metadata add option "--zero n".
WARNING: Reusing mismatched cache pool metadata MAY DESTROY YOUR DATA!"
This is new.
When a client is doing a wait on a job, any other clients will hang
when trying to do anything with the service. This is caused by
the wait code which was placing the thread that handles
incoming dbus requests to sleep until either the timeout expired or
the job operation completed.
This change creates a thread for the wait request, so that the thread
processing incoming requests can continue to run.
with respect to the changed, configurable default behaviour
introduced with commit 7eb7909193.
E.g. raid default of 2 stripes rather than number of PVs in the VG
or on the command line minus one.
The syntax for converting an LV to a thin LV
included an unnecessary --thin option. I was
probably still confused about these options
when writing this.
General RAID and RAID segment type specific checks are added
to merge.c. New static _check_raid_seg() is called on each segment
of a RaidLV (which have just one) from check_lv_segments().
New checks caught some unititialized segment members
which are addressed here as well:
- initialize seg->region_size to 0 in lvcreate.c for raid0/raid0_meta
- initialize list seg->origin_list in lv_manip.c
