Bug 1253089
| Summary: | thin_restore doesn't take a device with valid metadata as an input (-i) | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | Corey Marthaler <cmarthal> |
| Component: | lvm2 | Assignee: | Joe Thornber <thornber> |
| lvm2 sub component: | Thin Provisioning | QA Contact: | cluster-qe <cluster-qe> |
| Status: | CLOSED NOTABUG | Docs Contact: | |
| Severity: | low | ||
| Priority: | low | CC: | agk, heinzm, jbrassow, msnitzer, prajnoha, prockai, thornber, zkabelac |
| Version: | 7.2 | Keywords: | Triaged |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2016-03-22 16:35:21 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
-i should always be in xml format. -o should always be to a file or device that's big enough to store the binary format of the metadata. I'm confused. According to the man page, -i should be "Input file or device with metadata", and according to my thin_dump of "/dev/mapper/snapper_thinp-meta_swap", it was just that, a device with valid metadata. Yet it's not allowed to be used? Does thin_dump somehow deal with the how the data is laid out on the device differently? |
Description of problem: According to the man page, thin_restore should take a device as valid input: -i, --input {device|file} Input file or device with metadata. -o, --output {device|file} Output file or device. lvcreate --thinpool POOL --zero n -L 1G --poolmetadatasize 4M snapper_thinp Making origin volume lvcreate --virtualsize 1G -T snapper_thinp/POOL -n origin lvcreate -V 1G -T snapper_thinp/POOL -n other1 WARNING: Sum of all thin volume sizes (2.00 GiB) exceeds the size of thin pool snapper_thinp/POOL (1.00 GiB)! lvcreate --virtualsize 1G -T snapper_thinp/POOL -n other2 WARNING: Sum of all thin volume sizes (3.00 GiB) exceeds the size of thin pool snapper_thinp/POOL (1.00 GiB)! lvcreate -V 1G -T snapper_thinp/POOL -n other3 WARNING: Sum of all thin volume sizes (4.00 GiB) exceeds the size of thin pool snapper_thinp/POOL (1.00 GiB)! lvcreate -V 1G -T snapper_thinp/POOL -n other4 WARNING: Sum of all thin volume sizes (5.00 GiB) exceeds the size of thin pool snapper_thinp/POOL (1.00 GiB)! lvcreate --virtualsize 1G -T snapper_thinp/POOL -n other5 WARNING: Sum of all thin volume sizes (6.00 GiB) exceeds the size of thin pool snapper_thinp/POOL (1.00 GiB)! Making snapshot of origin volume lvcreate -k n -s /dev/snapper_thinp/origin -n snap Create new device to swap in as the new _tmeta device WARNING: Sum of all thin volume sizes (7.00 GiB) exceeds the size of thin pools (1.00 GiB)! Dumping current pool (POOL) metadata to /tmp/snapper_thinp_dump.5718.16440 lvcreate -L 4M -n meta_swap snapper_thinp WARNING: Sum of all thin volume sizes (7.00 GiB) exceeds the size of thin pools (1.00 GiB)! lvconvert --yes --thinpool snapper_thinp/POOL --poolmetadata snapper_thinp/meta_swap lvchange -ay snapper_thinp/meta_swap [root@host-111 ~]# lvs -a -o +devices LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert Devices root rhel_host-111 -wi-ao---- 6.67g /dev/vda2(205) swap rhel_host-111 -wi-ao---- 820.00m /dev/vda2(0) POOL snapper_thinp twi---t--- 1.00g POOL_tdata(0) [POOL_tdata] snapper_thinp Twi------- 1.00g /dev/sdd1(1) [POOL_tmeta] snapper_thinp ewi------- 4.00m /dev/sdd1(266) [lvol0_pmspare] snapper_thinp ewi------- 4.00m /dev/sdd1(0) meta_swap snapper_thinp -wi-a----- 4.00m /dev/sdf1(0) newtmeta snapper_thinp -wi-a----- 100.00g /dev/sdb1(0) newtmeta snapper_thinp -wi-a----- 100.00g /dev/sdc1(0) newtmeta snapper_thinp -wi-a----- 100.00g /dev/sde1(0) newtmeta snapper_thinp -wi-a----- 100.00g /dev/sdf1(1) newtmeta snapper_thinp -wi-a----- 100.00g /dev/sdd1(257) origin snapper_thinp Vwi---t--- 1.00g POOL other1 snapper_thinp Vwi---t--- 1.00g POOL other2 snapper_thinp Vwi---t--- 1.00g POOL other3 snapper_thinp Vwi---t--- 1.00g POOL other4 snapper_thinp Vwi---t--- 1.00g POOL other5 snapper_thinp Vwi---t--- 1.00g POOL snap snapper_thinp Vwi---t--- 1.00g POOL origin [root@host-111 ~]# thin_restore -i /dev/mapper/snapper_thinp-meta_swap -o /tmp/foofile Couldn't stat dev path [root@host-111 ~]# thin_restore -i /dev/snapper_thinp/meta_swap -o /tmp/foofile Couldn't stat dev path [root@host-111 ~]# thin_dump /dev/mapper/snapper_thinp-meta_swap <superblock uuid="" time="1" transaction="7" data_block_size="128" nr_data_blocks="16384"> <device dev_id="1" mapped_blocks="1" transaction="0" creation_time="0" snap_time="1"> <single_mapping origin_block="0" data_block="0" time="0"/> </device> <device dev_id="2" mapped_blocks="1" transaction="1" creation_time="0" snap_time="0"> <single_mapping origin_block="0" data_block="1" time="0"/> </device> <device dev_id="3" mapped_blocks="1" transaction="2" creation_time="0" snap_time="0"> <single_mapping origin_block="0" data_block="2" time="0"/> </device> <device dev_id="4" mapped_blocks="1" transaction="3" creation_time="0" snap_time="0"> <single_mapping origin_block="0" data_block="3" time="0"/> </device> <device dev_id="5" mapped_blocks="1" transaction="4" creation_time="0" snap_time="0"> <single_mapping origin_block="0" data_block="4" time="0"/> </device> <device dev_id="6" mapped_blocks="1" transaction="5" creation_time="0" snap_time="0"> <single_mapping origin_block="0" data_block="5" time="0"/> </device> <device dev_id="7" mapped_blocks="1" transaction="6" creation_time="1" snap_time="1"> <single_mapping origin_block="0" data_block="0" time="0"/> </device> </superblock> [root@host-111 ~]# thin_dump /dev/snapper_thinp/meta_swap > /tmp/foofile [root@host-111 ~]# thin_restore -i /tmp/foofile -o /dev/snapper_thinp/meta_swap Restoring: [=================================================] / 100% [root@host-111 ~]# thin_restore -i /dev/snapper_thinp/meta_swap -o /tmp/foofile transaction_manager::new_block() couldn't allocate new block Version-Release number of selected component (if applicable): 3.10.0-302.el7.x86_64 lvm2-2.02.127-1.el7 BUILT: Mon Aug 10 03:22:35 CDT 2015 lvm2-libs-2.02.127-1.el7 BUILT: Mon Aug 10 03:22:35 CDT 2015 lvm2-cluster-2.02.127-1.el7 BUILT: Mon Aug 10 03:22:35 CDT 2015 device-mapper-1.02.104-1.el7 BUILT: Mon Aug 10 03:22:35 CDT 2015 device-mapper-libs-1.02.104-1.el7 BUILT: Mon Aug 10 03:22:35 CDT 2015 device-mapper-event-1.02.104-1.el7 BUILT: Mon Aug 10 03:22:35 CDT 2015 device-mapper-event-libs-1.02.104-1.el7 BUILT: Mon Aug 10 03:22:35 CDT 2015 device-mapper-persistent-data-0.5.4-1.el7 BUILT: Fri Jul 17 08:56:22 CDT 2015 cmirror-2.02.127-1.el7 BUILT: Mon Aug 10 03:22:35 CDT 2015 sanlock-3.2.4-1.el7 BUILT: Fri Jun 19 12:48:49 CDT 2015 sanlock-lib-3.2.4-1.el7 BUILT: Fri Jun 19 12:48:49 CDT 2015 lvm2-lockd-2.02.127-1.el7 BUILT: Mon Aug 10 03:22:35 CDT 2015