----- On Apr 11, 2019, at 2:32 PM, Bernd Lentes bernd.lentes@xxxxxxxxxxxxxxxxxxxxx wrote: > ----- On Apr 11, 2019, at 1:09 PM, Zdenek Kabelac zkabelac@xxxxxxxxxx wrote: > > >>>>> Hello list, >>>>> >>>>> I have a two-node HA-cluster which uses local and cluster LVM. >>>>> cLVM is currently stopped, I try to remove a snapshot from the root lv which >>>>> is located on a local VG. >>>>> I get this error: >>>>> ha-idg-2:/mnt/spp # lvremove -fv vg_local/lv_snap_pre_sp4 >>>>> connect() failed on local socket: No such file or directory >>>>> Internal cluster locking initialisation failed. >>>>> WARNING: Falling back to local file-based locking. >>>>> Volume Groups with the clustered attribute will be inaccessible. >>>>> Archiving volume group "vg_local" metadata (seqno 26). >>>>> Removing snapshot volume vg_local/lv_snap_pre_sp4. >>>>> Loading table for vg_local-lv_root (254:8). >>>>> device-mapper: reload ioctl on (254:8) failed: Invalid argument >>>>> Failed to refresh lv_root without snapshot. >>>>> >>>> >> >> What is the related error message from kernel (IOCTL) - check and show dmesg >> messages. Eventually please supply >> >> 'dmsetup table' >> 'dmsetup status' >> 'dmsetup info -c' > > Hi Zdenek, > > thanks for your support. I managed to delete the snapshot via "dmsetup remove", > but in lvs and lvdisplay it still appears. > And i'm still not able to remove it via lvremove: > > ha-idg-2:~ # lvremove -fv /dev/vg_local/lv_snap_pre_sp4 > connect() failed on local socket: No such file or directory > Internal cluster locking initialisation failed. > WARNING: Falling back to local file-based locking. > Volume Groups with the clustered attribute will be inaccessible. > Archiving volume group "vg_local" metadata (seqno 26). > Removing snapshot volume vg_local/lv_snap_pre_sp4. > Loading table for vg_local-lv_root (254:9). > device-mapper: reload ioctl on (254:9) failed: Invalid argument > Failed to refresh lv_root without snapshot. > > dmesg: > [88310.980351] device-mapper: ioctl: can't change device type after initial > table load. > > dmsetup: > ha-idg-2:~ # dmsetup -c table > vg_local-lv_root-real: 0 209715200 linear 254:4 167774208 > vg_local-lv_var: 0 83886080 linear 254:4 83888128 > 3600508b1001c5037520913a9b581d78d-part3: 0 2081866639 linear 254:0 262248448 > 3600508b1001c5037520913a9b581d78d-part2: 0 262144000 linear 254:0 104448 > 3600c0ff00012824b04af7a5201000000: 0 3738281088 multipath 1 queue_if_no_path 1 > alua 2 1 service-time 0 1 2 8:32 1 1 service-time 0 1 2 8:16 1 1 > 3600508b1001c5037520913a9b581d78d-part1: 0 102400 linear 254:0 2048 > 3600c0ff00012824b04af7a5201000000-part3: 0 626951296 linear 254:1 3111329792 > 3600c0ff00012824b04af7a5201000000-part2: 0 999999744 linear 254:1 2111328256 > vg_local-lv_tmp: 0 83886080 linear 254:4 2048 > vg_local-lv_root: 0 209715200 snapshot-origin 254:8 > 3600c0ff00012824b04af7a5201000000-part1: 0 2111325952 linear 254:1 2048 > 3600508b1001c5037520913a9b581d78d: 0 2344115120 multipath 1 queue_if_no_path 0 1 > 1 service-time 0 1 2 8:0 1 1 > > ha-idg-2:~ # dmsetup -c status > vg_local-lv_root-real: 0 209715200 linear > vg_local-lv_var: 0 83886080 linear > 3600508b1001c5037520913a9b581d78d-part3: 0 2081866639 linear > 3600508b1001c5037520913a9b581d78d-part2: 0 262144000 linear > 3600c0ff00012824b04af7a5201000000: 0 3738281088 multipath 2 0 1 0 2 1 A 0 1 2 > 8:32 A 0 0 1 E 0 1 2 8:16 A 0 0 1 > 3600508b1001c5037520913a9b581d78d-part1: 0 102400 linear > 3600c0ff00012824b04af7a5201000000-part3: 0 626951296 linear > 3600c0ff00012824b04af7a5201000000-part2: 0 999999744 linear > vg_local-lv_tmp: 0 83886080 linear > vg_local-lv_root: 0 209715200 snapshot-origin > 3600c0ff00012824b04af7a5201000000-part1: 0 2111325952 linear > 3600508b1001c5037520913a9b581d78d: 0 2344115120 multipath 2 0 0 0 1 1 A 0 1 2 > 8:0 A 0 0 1 > > ha-idg-2:~ # dmsetup -c info > Name Maj Min Stat Open Targ Event UUID > vg_local-lv_root-real 254 8 L--w 1 1 0 > LVM-btzX70eAWIejM6K1bcQnKNmnIOYaTODGt79QZ80zYmQrwddi2BBMObpN1gLssjEF-real > vg_local-lv_var 254 13 L--w 1 1 0 > LVM-btzX70eAWIejM6K1bcQnKNmnIOYaTODGrKrEMyCOt3F1beHksmGkVybX8gjiHtCK > 3600508b1001c5037520913a9b581d78d-part3 254 4 L--w 3 1 0 > part3-mpath-3600508b1001c5037520913a9b581d78d > 3600508b1001c5037520913a9b581d78d-part2 254 3 L--w 2 1 0 > part2-mpath-3600508b1001c5037520913a9b581d78d > 3600c0ff00012824b04af7a5201000000 254 1 L--w 3 1 0 > mpath-3600c0ff00012824b04af7a5201000000 > 3600508b1001c5037520913a9b581d78d-part1 254 2 L--w 0 1 0 > part1-mpath-3600508b1001c5037520913a9b581d78d > 3600c0ff00012824b04af7a5201000000-part3 254 7 L--w 0 1 0 > part3-mpath-3600c0ff00012824b04af7a5201000000 > 3600c0ff00012824b04af7a5201000000-part2 254 6 L--w 0 1 0 > part2-mpath-3600c0ff00012824b04af7a5201000000 > vg_local-lv_tmp 254 12 L--w 1 1 0 > LVM-btzX70eAWIejM6K1bcQnKNmnIOYaTODGjcHjj26T647y1Lh468NGS5GysMiYeG7v > vg_local-lv_root 254 9 L--w 1 1 0 > LVM-btzX70eAWIejM6K1bcQnKNmnIOYaTODGt79QZ80zYmQrwddi2BBMObpN1gLssjEF > 3600c0ff00012824b04af7a5201000000-part1 254 5 L--w 0 1 0 > part1-mpath-3600c0ff00012824b04af7a5201000000 > 3600508b1001c5037520913a9b581d78d 254 0 L--w 3 1 0 > mpath-3600508b1001c5037520913a9b581d78d > > Hi, some more information, maybe helpful: strace lvremove -fvvvv /dev/vg_local/lv_snap_pre_sp4 ... write(2, "#ioctl/libdm-iface.c:1857 "..., 35#ioctl/libdm-iface.c:1857 ) = 35 write(2, "dm reload (254:9) [ noopencoun"..., 56dm reload (254:9) [ noopencount flush ] [16384] (*1)) = 56 write(2, "\n", 1) = 1 ioctl(3, DM_TABLE_LOAD, 0x563c294d2c90) = -1 EINVAL (Invalid argument) <=========== write(2, "#ioctl/libdm-iface.c:1895 ", 29#ioctl/libdm-iface.c:1895 ) = 29 write(2, "device-mapper: reload ioctl on "..., 64device-mapper: reload ioctl on (254:9) failed: Invalid argument) = 64 write(2, "\n", 1) = 1 write(2, "#libdm-deptree.c:2846 ", 31#libdm-deptree.c:2846 ) = 31 write(2, "<backtrace>", 11<backtrace>) = 11 write(2, "\n", 1) = 1 write(2, "#activate/dev_manager.c:3291 "..., 38#activate/dev_manager.c:3291 ) = 38 write(2, "<backtrace>", 11<backtrace>) = 11 write(2, "\n", 1) = 1 write(2, "#activate/dev_manager.c:3346 "..., 38#activate/dev_manager.c:3346 ) = 38 write(2, "<backtrace>", 11<backtrace>) = 11 write(2, "\n", 1) = 1 write(2, "#activate/activate.c:1406 "..., 35#activate/activate.c:1406 ) = 35 write(2, "<backtrace>", 11<backtrace>) = 11 write(2, "\n", 1) = 1 Bernd Helmholtz Zentrum Muenchen Deutsches Forschungszentrum fuer Gesundheit und Umwelt (GmbH) Ingolstaedter Landstr. 1 85764 Neuherberg www.helmholtz-muenchen.de Stellv. 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