Bug 1419178
| Summary: | data corruption after the transient failure of a not in sync raid primary device | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 6 | Reporter: | Corey Marthaler <cmarthal> |
| Component: | lvm2 | Assignee: | Heinz Mauelshagen <heinzm> |
| lvm2 sub component: | Mirroring and RAID (RHEL6) | QA Contact: | cluster-qe <cluster-qe> |
| Status: | CLOSED WONTFIX | Docs Contact: | |
| Severity: | high | ||
| Priority: | unspecified | CC: | agk, heinzm, jbrassow, msnitzer, prajnoha, prockai, zkabelac |
| Version: | 6.9 | ||
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | If docs needed, set a value | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2017-12-06 12:13:21 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: | |||
Red Hat Enterprise Linux 6 is in the Production 3 Phase. During the Production 3 Phase, Critical impact Security Advisories (RHSAs) and selected Urgent Priority Bug Fix Advisories (RHBAs) may be released as they become available. The official life cycle policy can be reviewed here: http://redhat.com/rhel/lifecycle This issue does not meet the inclusion criteria for the Production 3 Phase and will be marked as CLOSED/WONTFIX. If this remains a critical requirement, please contact Red Hat Customer Support to request a re-evaluation of the issue, citing a clear business justification. Note that a strong business justification will be required for re-evaluation. Red Hat Customer Support can be contacted via the Red Hat Customer Portal at the following URL: https://access.redhat.com/ |
Description of problem: This appears to be a known issue with transient failures of raid1 primary images not yet in sync. Here after the data is written, verified, transiently failed, and refreshed back into the mirror. The data is then missing due to the secondary image syncing back onto the brought back primary image. ================================================================================ Iteration 0.5 started at Thu Feb 2 18:25:52 CST 2017 ================================================================================ Scenario kill_primary_non_synced_raid1_3legs: Kill primary leg of NON synced 3 leg raid1 volume(s) ********* RAID hash info for this scenario ********* * names: non_synced_primary_raid1_3legs_1 * sync: 0 * type: raid1 * -m |-i value: 3 * leg devices: /dev/sdd1 /dev/sdc1 /dev/sde1 /dev/sdg1 * spanned legs: 0 * manual repair: 1 * failpv(s): /dev/sdd1 * failnode(s): host-073 * lvmetad: 0 * raid fault policy: warn ****************************************************** Creating raids(s) on host-073... host-073: lvcreate --type raid1 -m 3 -n non_synced_primary_raid1_3legs_1 -L 3G black_bird /dev/sdd1:0-3600 /dev/sdc1:0-3600 /dev/sde1:0-3600 /dev/sdg1:0-3600 Current mirror/raid device structure(s): LV Attr LSize Cpy%Sync Devices non_synced_primary_raid1_3legs_1 rwi-a-r--- 3.00g 0.00 non_synced_primary_raid1_3legs_1_rimage_0(0),non_synced_primary_raid1_3legs_1_rimage_1(0),non_synced_primary_raid1_3legs_1_rimage_2(0),non_synced_primary_raid1_3legs_1_rimage_3(0) [non_synced_primary_raid1_3legs_1_rimage_0] Iwi-aor--- 3.00g /dev/sdd1(1) [non_synced_primary_raid1_3legs_1_rimage_1] Iwi-aor--- 3.00g /dev/sdc1(1) [non_synced_primary_raid1_3legs_1_rimage_2] Iwi-aor--- 3.00g /dev/sde1(1) [non_synced_primary_raid1_3legs_1_rimage_3] Iwi-aor--- 3.00g /dev/sdg1(1) [non_synced_primary_raid1_3legs_1_rmeta_0] ewi-aor--- 4.00m /dev/sdd1(0) [non_synced_primary_raid1_3legs_1_rmeta_1] ewi-aor--- 4.00m /dev/sdc1(0) [non_synced_primary_raid1_3legs_1_rmeta_2] ewi-aor--- 4.00m /dev/sde1(0) [non_synced_primary_raid1_3legs_1_rmeta_3] ewi-aor--- 4.00m /dev/sdg1(0) Creating ext on top of mirror(s) on host-073... mke2fs 1.41.12 (17-May-2010) Mounting mirrored ext filesystems on host-073... PV=/dev/sdd1 non_synced_primary_raid1_3legs_1_rimage_0: 2 non_synced_primary_raid1_3legs_1_rmeta_0: 2 Writing verification files (checkit) to mirror(s) on... ---- host-073 ---- <start name="host-073_non_synced_primary_raid1_3legs_1" pid="22695" time="Thu Feb 2 18:26:10 2017 -0600" type="cmd" /> Verifying files (checkit) on mirror(s) on... ---- host-073 ---- Current sync percent just before failure ( 15.11% ) Disabling device sdd on host-073 Attempting I/O to cause mirror down conversion(s) on host-073 dd if=/dev/zero of=/mnt/non_synced_primary_raid1_3legs_1/ddfile count=10 bs=4M 10+0 records in 10+0 records out 41943040 bytes (42 MB) copied, 0.181764 s, 231 MB/s HACK TO KILL XDOIO... <fail name="host-073_non_synced_primary_raid1_3legs_1" pid="22695" time="Thu Feb 2 18:26:29 2017 -0600" type="cmd" duration="19" ec="143" /> ALL STOP! Unmounting ext and removing mnt point on host-073... Verifying proper "D"ead kernel status state for failed raid images(s) black_bird-non_synced_primary_raid1_3legs_1: 0 6291456 raid raid1 4 DAAA 1317888/6291456 resync 0 Reactivaing the raids containing transiently failed raid images lvchange -an black_bird/non_synced_primary_raid1_3legs_1 /dev/sdd1: read failed after 0 of 2048 at 0: Input/output error /dev/sdd1: read failed after 0 of 1024 at 22545367040: Input/output error /dev/sdd1: read failed after 0 of 1024 at 22545448960: Input/output error /dev/sdd1: read failed after 0 of 1024 at 0: Input/output error /dev/sdd1: read failed after 0 of 1024 at 4096: Input/output error Couldn't find device with uuid 9NqF7Q-Mv1E-LP6Z-Nbid-u9Dr-RId2-j9o8wD. Couldn't find device for segment belonging to black_bird/non_synced_primary_raid1_3legs_1_rimage_0 while checking used and assumed devices. lvchange -ay black_bird/non_synced_primary_raid1_3legs_1 /dev/sdd1: open failed: No such device or address Couldn't find device with uuid 9NqF7Q-Mv1E-LP6Z-Nbid-u9Dr-RId2-j9o8wD. Verifying proper kernel table state of failed image(s) Verifying proper "D"ead kernel status state for failed raid images(s) black_bird-non_synced_primary_raid1_3legs_1: 0 6291456 raid raid1 4 Daaa 0/6291456 resync 0 Enabling device sdd on host-073 Running vgs to make LVM update metadata version if possible (will restore a-m PVs) Refreshing raids now that transiently failed raid images should be back lvchange --refresh black_bird/non_synced_primary_raid1_3legs_1 HACK: additional refresh as outlined in bug 1265191#c22: lvchange --refresh black_bird/non_synced_primary_raid1_3legs_1 Verifying current sanity of lvm after the failure Waiting until all mirror|raid volumes become fully syncd... 0/1 mirror(s) are fully synced: ( 39.49% ) 0/1 mirror(s) are fully synced: ( 61.03% ) 0/1 mirror(s) are fully synced: ( 78.61% ) 1/1 mirror(s) are fully synced: ( 100.00% ) Verifying proper "A"ctive kernel status state for raid image(s) Current mirror/raid device structure(s): LV Attr LSize Cpy%Sync Devices non_synced_primary_raid1_3legs_1 rwi-a-r--- 3.00g 100.00 non_synced_primary_raid1_3legs_1_rimage_0(0),non_synced_primary_raid1_3legs_1_rimage_1(0),non_synced_primary_raid1_3legs_1_rimage_2(0),non_synced_primary_raid1_3legs_1_rimage_3(0) [non_synced_primary_raid1_3legs_1_rimage_0] iwi-aor--- 3.00g /dev/sdd1(1) [non_synced_primary_raid1_3legs_1_rimage_1] iwi-aor--- 3.00g /dev/sdc1(1) [non_synced_primary_raid1_3legs_1_rimage_2] iwi-aor--- 3.00g /dev/sde1(1) [non_synced_primary_raid1_3legs_1_rimage_3] iwi-aor--- 3.00g /dev/sdg1(1) [non_synced_primary_raid1_3legs_1_rmeta_0] ewi-aor--- 4.00m /dev/sdd1(0) [non_synced_primary_raid1_3legs_1_rmeta_1] ewi-aor--- 4.00m /dev/sdc1(0) [non_synced_primary_raid1_3legs_1_rmeta_2] ewi-aor--- 4.00m /dev/sde1(0) [non_synced_primary_raid1_3legs_1_rmeta_3] ewi-aor--- 4.00m /dev/sdg1(0) Checking for leftover '-missing_0_0' or 'unknown devices' Verifying FAILED device /dev/sdd1 *IS BACK* in the volume(s) Verifying IMAGE device /dev/sdc1 *IS* in the volume(s) Verifying IMAGE device /dev/sde1 *IS* in the volume(s) Verifying IMAGE device /dev/sdg1 *IS* in the volume(s) Verify the rimage/rmeta dm devices remain after the failures DM:non_synced_primary_raid1_3legs_1_rimage_0 DM:non_synced_primary_raid1_3legs_1_rmeta_0 Verify the rimage/rmeta dm devices remain after the failures Checking EXISTENCE and STATE of non_synced_primary_raid1_3legs_1_rimage_0 on: host-073 Checking EXISTENCE and STATE of non_synced_primary_raid1_3legs_1_rmeta_0 on: host-073 Verify the raid image order is what's expected based on raid fault policy EXPECTED ORDER IS JUST THE ORIGINAL LEG LIST: /dev/sdd1 /dev/sdc1 /dev/sde1 /dev/sdg1 ACTUAL LEG ORDER: /dev/sdd1 /dev/sdc1 /dev/sde1 /dev/sdg1 /dev/sdd1 ne /dev/sdd1 /dev/sdc1 ne /dev/sdc1 /dev/sde1 ne /dev/sde1 /dev/sdg1 ne /dev/sdg1 Verifying proper kernel table state of failed image(s) Mounting mirrored ext filesystems on host-073... Verifying files (checkit) on mirror(s) on... ---- host-073 ---- Can not cd to /mnt/non_synced_primary_raid1_3legs_1/checkit: No such file or directory [root@host-073 ~]# df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/black_bird-non_synced_primary_raid1_3legs_1 3.0G 69M 2.8G 3% /mnt/non_synced_primary_raid1_3legs_1 # data is missing [root@host-073 ~]# ls /mnt/non_synced_primary_raid1_3legs_1 lost+found Version-Release number of selected component (if applicable): 2.6.32-688.el6.x86_64 lvm2-2.02.143-12.el6 BUILT: Wed Jan 11 09:35:04 CST 2017 lvm2-libs-2.02.143-12.el6 BUILT: Wed Jan 11 09:35:04 CST 2017 lvm2-cluster-2.02.143-12.el6 BUILT: Wed Jan 11 09:35:04 CST 2017 udev-147-2.73.el6_8.2 BUILT: Tue Aug 30 08:17:19 CDT 2016 device-mapper-1.02.117-12.el6 BUILT: Wed Jan 11 09:35:04 CST 2017 device-mapper-libs-1.02.117-12.el6 BUILT: Wed Jan 11 09:35:04 CST 2017 device-mapper-event-1.02.117-12.el6 BUILT: Wed Jan 11 09:35:04 CST 2017 device-mapper-event-libs-1.02.117-12.el6 BUILT: Wed Jan 11 09:35:04 CST 2017 device-mapper-persistent-data-0.6.2-0.1.rc7.el6 BUILT: Tue Mar 22 08:58:09 CDT 2016 cmirror-2.02.143-12.el6 BUILT: Wed Jan 11 09:35:04 CST 2017