== replay-dual test 26: dbench and tar with mds failover ========================================================== 20:28:35 (1787790515) Starting client oleg611-client.virtnet: -o user_xattr,flock 192.168.206.111@tcp:/lustre /mnt/lustre Started clients oleg611-client.virtnet: 192.168.206.111@tcp:/lustre on /mnt/lustre type lustre (rw,flock,checksum,encrypt,lazystatfs,lruresize,nolock,statfs_project,nosync_on_close,nouser_fid2path,user_xattr,verbose) Started tar loop with pid 65615 Started dbench loop with 65617 striped dir -i0 -c2 -H fnv_1a_64 /mnt/lustre2/d26.replay-dual/run_dbench striped dir -i0 -c2 -H all_char /mnt/lustre/d26.replay-dual/run_tar looking for dbench program /usr/bin/dbench found dbench client file /usr/share/dbench/client.txt UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 1936 1269368 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 1756 1269548 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 1564 3605456 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 17928 3580740 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 19492 7186196 1% /mnt/lustre '/usr/share/dbench/client.txt' -> 'client.txt' running 'dbench 1 -D /mnt/lustre2/d26.replay-dual/run_dbench -t 100' on /mnt/lustre at Wed Aug 26 20:28:39 EDT 2026 waiting for dbench pid 65680 dbench version 4.00 - Copyright Andrew Tridgell 1999-2004 Running for 100 seconds with load 'client.txt' and minimum warmup 20 secs failed to create barrier semaphore 0 of 1 processes prepared for launch 0 sec 1 of 1 processes prepared for launch 0 sec releasing clients 1 31 1.05 MB/sec warmup 1 sec latency 25.013 ms 1 92 2.10 MB/sec warmup 2 sec latency 133.932 ms 1 139 2.01 MB/sec warmup 3 sec latency 160.731 ms 1 179 1.81 MB/sec warmup 4 sec latency 129.638 ms 1 204 1.59 MB/sec warmup 5 sec latency 367.703 ms 1 246 1.57 MB/sec warmup 6 sec latency 165.824 ms 1 287 1.53 MB/sec warmup 7 sec latency 111.341 ms test_26 fail mds1 1 times 1 336 1.52 MB/sec warmup 8 sec latency 94.382 ms 1 368 1.45 MB/sec warmup 9 sec latency 207.111 ms Failing mds1 on oleg611-server 1 413 1.46 MB/sec warmup 10 sec latency 131.170 ms Stopping /mnt/lustre-mds1 (opts:) on oleg611-server 1 452 1.44 MB/sec warmup 11 sec latency 219.952 ms 1 476 1.39 MB/sec warmup 12 sec latency 446.126 ms 1 476 1.28 MB/sec warmup 13 sec latency 1446.300 ms 20:28:53 (1787790533) shut down facet: mds1 facet_host: oleg611-server facet_failover_host: oleg611-server 1 476 1.19 MB/sec warmup 14 sec latency 2446.553 ms 1 476 1.11 MB/sec warmup 15 sec latency 3446.794 ms 1 476 1.04 MB/sec warmup 16 sec latency 4447.001 ms 1 476 0.98 MB/sec warmup 17 sec latency 5447.245 ms 1 476 0.93 MB/sec warmup 18 sec latency 6447.922 ms 1 476 0.88 MB/sec warmup 19 sec latency 7448.116 ms 1 476 0.00 MB/sec execute 1 sec latency 9450.206 ms 1 476 0.00 MB/sec execute 2 sec latency 10450.460 ms 1 476 0.00 MB/sec execute 3 sec latency 11450.703 ms Failover mds1 to oleg611-server 1 476 0.00 MB/sec execute 4 sec latency 12453.437 ms mount facets: mds1 1 476 0.00 MB/sec execute 5 sec latency 13455.909 ms 1 476 0.00 MB/sec execute 6 sec latency 14456.123 ms 1 476 0.00 MB/sec execute 7 sec latency 15456.401 ms 1 476 0.00 MB/sec execute 8 sec latency 16456.562 ms 1 476 0.00 MB/sec execute 9 sec latency 17456.847 ms 1 476 0.00 MB/sec execute 10 sec latency 18458.096 ms 1 476 0.00 MB/sec execute 11 sec latency 19458.307 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 476 0.00 MB/sec execute 12 sec latency 20458.526 ms 1 476 0.00 MB/sec execute 13 sec latency 21459.517 ms 1 476 0.00 MB/sec execute 14 sec latency 22468.721 ms 1 476 0.00 MB/sec execute 15 sec latency 23469.709 ms 1 476 0.00 MB/sec execute 16 sec latency 24469.940 ms 1 476 0.00 MB/sec execute 17 sec latency 25470.207 ms 1 476 0.00 MB/sec execute 18 sec latency 26470.506 ms 1 476 0.00 MB/sec execute 19 sec latency 27470.873 ms 1 476 0.00 MB/sec execute 20 sec latency 28471.212 ms 1 476 0.00 MB/sec execute 21 sec latency 29471.467 ms 1 476 0.00 MB/sec execute 22 sec latency 30473.333 ms 1 476 0.00 MB/sec execute 23 sec latency 31473.833 ms 1 476 0.00 MB/sec execute 24 sec latency 32474.393 ms 1 476 0.00 MB/sec execute 25 sec latency 33474.629 ms 1 476 0.00 MB/sec execute 26 sec latency 34475.401 ms 1 476 0.00 MB/sec execute 27 sec latency 35475.669 ms oleg611-server: oleg611-server.virtnet: executing set_default_debug -1 all pdsh@oleg611-client: oleg611-server: ssh exited with exit code 1 1 476 0.00 MB/sec execute 28 sec latency 36476.273 ms Started lustre-MDT0000 20:29:28 (1787790568) targets are mounted 20:29:28 (1787790568) facet_failover done 1 476 0.00 MB/sec execute 29 sec latency 37483.379 ms 1 476 0.00 MB/sec execute 30 sec latency 38491.233 ms 1 477 0.00 MB/sec execute 31 sec latency 39479.348 ms 1 523 0.04 MB/sec execute 32 sec latency 110.669 ms 1 591 0.11 MB/sec execute 33 sec latency 455.377 ms 1 655 0.13 MB/sec execute 34 sec latency 120.034 ms oleg611-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 706 0.13 MB/sec execute 35 sec latency 83.418 ms 1 742 0.13 MB/sec execute 36 sec latency 91.241 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 786 0.13 MB/sec execute 37 sec latency 106.267 ms 1 821 0.13 MB/sec execute 38 sec latency 120.169 ms 1 877 0.13 MB/sec execute 39 sec latency 98.246 ms 1 914 0.13 MB/sec execute 40 sec latency 99.608 ms 1 962 0.12 MB/sec execute 41 sec latency 98.763 ms 1 1018 0.13 MB/sec execute 42 sec latency 97.820 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2132 1269172 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 1964 1269340 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 17476 3588488 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 37112 3565712 2% /mnt/lustre[OST:1] filesystem_summary: 7666232 54588 7154200 1% /mnt/lustre 1 1077 0.14 MB/sec execute 43 sec latency 71.808 ms 1 1135 0.14 MB/sec execute 44 sec latency 97.022 ms 1 1172 0.14 MB/sec execute 45 sec latency 327.465 ms 1 1192 0.14 MB/sec execute 46 sec latency 722.082 ms 1 1240 0.14 MB/sec execute 47 sec latency 73.628 ms 1 1382 0.19 MB/sec execute 48 sec latency 90.341 ms 1 1420 0.19 MB/sec execute 49 sec latency 84.985 ms 1 1486 0.19 MB/sec execute 50 sec latency 75.251 ms 1 1551 0.18 MB/sec execute 51 sec latency 64.211 ms test_26 fail mds2 2 times 1 1588 0.18 MB/sec execute 52 sec latency 79.472 ms Failing mds2 on oleg611-server 1 1644 0.18 MB/sec execute 53 sec latency 99.613 ms Stopping /mnt/lustre-mds2 (opts:) on oleg611-server 1 1691 0.18 MB/sec execute 54 sec latency 101.907 ms 1 1764 0.17 MB/sec execute 55 sec latency 85.006 ms 1 1828 0.17 MB/sec execute 56 sec latency 64.159 ms 1 1904 0.17 MB/sec execute 57 sec latency 82.475 ms 1 1996 0.17 MB/sec execute 58 sec latency 59.406 ms 1 2094 0.17 MB/sec execute 59 sec latency 66.017 ms 1 2166 0.17 MB/sec execute 60 sec latency 72.441 ms 1 2259 0.17 MB/sec execute 61 sec latency 77.224 ms 20:30:01 (1787790601) shut down facet: mds2 facet_host: oleg611-server facet_failover_host: oleg611-server 1 2259 0.16 MB/sec execute 62 sec latency 1014.895 ms 1 2259 0.16 MB/sec execute 63 sec latency 2015.191 ms 1 2259 0.16 MB/sec execute 64 sec latency 3017.061 ms 1 2259 0.16 MB/sec execute 65 sec latency 4017.761 ms 1 2259 0.15 MB/sec execute 66 sec latency 5018.428 ms 1 2259 0.15 MB/sec execute 67 sec latency 6019.346 ms 1 2259 0.15 MB/sec execute 68 sec latency 7019.586 ms 1 2259 0.15 MB/sec execute 69 sec latency 8019.761 ms 1 2259 0.14 MB/sec execute 70 sec latency 9019.972 ms 1 2259 0.14 MB/sec execute 71 sec latency 10021.564 ms Failover mds2 to oleg611-server mount facets: mds2 1 2259 0.14 MB/sec execute 72 sec latency 11021.745 ms 1 2259 0.14 MB/sec execute 73 sec latency 12024.498 ms 1 2259 0.14 MB/sec execute 74 sec latency 13024.750 ms 1 2259 0.13 MB/sec execute 75 sec latency 14025.120 ms 1 2259 0.13 MB/sec execute 76 sec latency 15025.601 ms 1 2259 0.13 MB/sec execute 77 sec latency 16025.914 ms Start mds2: mount -t lustre -o localrecov /dev/mapper/mds2_flakey /mnt/lustre-mds2 1 2259 0.13 MB/sec execute 78 sec latency 17028.833 ms 1 2259 0.13 MB/sec execute 79 sec latency 18033.648 ms 1 2259 0.13 MB/sec execute 80 sec latency 19034.202 ms 1 2259 0.12 MB/sec execute 81 sec latency 20034.464 ms oleg611-server: oleg611-server.virtnet: executing set_default_debug -1 all 1 2259 0.12 MB/sec execute 82 sec latency 21034.809 ms pdsh@oleg611-client: oleg611-server: ssh exited with exit code 1 1 2259 0.12 MB/sec execute 83 sec latency 22038.005 ms Started lustre-MDT0001 20:30:23 (1787790623) targets are mounted 20:30:23 (1787790623) facet_failover done 1 2259 0.12 MB/sec execute 84 sec latency 23038.521 ms 1 2259 0.12 MB/sec execute 85 sec latency 24038.777 ms 1 2326 0.13 MB/sec execute 86 sec latency 24435.964 ms 1 2378 0.13 MB/sec execute 87 sec latency 76.925 ms 1 2428 0.13 MB/sec execute 88 sec latency 77.288 ms oleg611-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0001-mdc-*.mds_server_uuid 1475 0 1 2489 0.14 MB/sec execute 89 sec latency 84.828 ms mdc.lustre-MDT0001-mdc-*.mds_server_uuid in FULL state after 0 sec 1 2584 0.14 MB/sec execute 90 sec latency 87.557 ms 1 2758 0.17 MB/sec execute 91 sec latency 96.949 ms 1 2896 0.18 MB/sec execute 92 sec latency 66.494 ms 1 2932 0.18 MB/sec execute 93 sec latency 133.237 ms 1 3012 0.18 MB/sec execute 94 sec latency 59.435 ms 1 3209 0.18 MB/sec execute 95 sec latency 75.844 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2396 1268908 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 2292 1269012 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 28252 3577944 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 41328 3562180 2% /mnt/lustre[OST:1] filesystem_summary: 7666232 69580 7140124 1% /mnt/lustre 1 3313 0.19 MB/sec execute 96 sec latency 102.730 ms 1 3373 0.19 MB/sec execute 97 sec latency 71.022 ms 1 3524 0.22 MB/sec execute 98 sec latency 94.052 ms 1 3582 0.22 MB/sec execute 99 sec latency 72.893 ms 1 cleanup 100 sec 1 cleanup 101 sec 1 cleanup 102 sec 1 cleanup 103 sec 0 cleanup 104 sec Operation Count AvgLat MaxLat ---------------------------------------- NTCreateX 467 93.329 24435.948 Close 393 110.061 39479.319 Rename 24 70.955 133.216 Unlink 57 22.554 42.769 Qpathinfo 455 14.253 150.844 Qfileinfo 114 1.476 7.497 Qfsinfo 89 2.397 18.731 Sfileinfo 50 46.579 97.807 Find 190 9.319 39.914 WriteX 359 10.583 58.317 ReadX 929 0.950 61.347 LockX 2 8.182 8.693 UnlockX 2 7.825 10.271 Flush 43 44.213 120.155 Throughput 0.219374 MB/sec 1 clients 1 procs max_latency=39479.348 ms stopping dbench on /mnt/lustre at Wed Aug 26 20:30:44 EDT 2026 with return code 0 test_26 fail mds1 3 times clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished Failing mds1 on oleg611-server striped dir -i0 -c2 -H all_char /mnt/lustre2/d26.replay-dual/run_dbench Stopping /mnt/lustre-mds1 (opts:) on oleg611-server 20:30:55 (1787790655) shut down facet: mds1 facet_host: oleg611-server facet_failover_host: oleg611-server Failover mds1 to oleg611-server mount facets: mds1 Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 oleg611-server: oleg611-server.virtnet: executing set_default_debug -1 all pdsh@oleg611-client: oleg611-server: ssh exited with exit code 1 Started lustre-MDT0000 20:31:27 (1787790687) targets are mounted 20:31:27 (1787790687) facet_failover done looking for dbench program /usr/bin/dbench found dbench client file /usr/share/dbench/client.txt '/usr/share/dbench/client.txt' -> 'client.txt' running 'dbench 1 -D /mnt/lustre2/d26.replay-dual/run_dbench -t 100' on /mnt/lustre at Wed Aug 26 20:31:31 EDT 2026 waiting for dbench pid 68464 dbench version 4.00 - Copyright Andrew Tridgell 1999-2004 Running for 100 seconds with load 'client.txt' and minimum warmup 20 secs 0 of 1 processes prepared for launch 0 sec 1 of 1 processes prepared for launch 0 sec releasing clients 1 22 0.52 MB/sec warmup 1 sec latency 16.566 ms oleg611-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 111 2.61 MB/sec warmup 2 sec latency 93.465 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 147 2.09 MB/sec warmup 3 sec latency 178.473 ms 1 184 1.83 MB/sec warmup 4 sec latency 147.239 ms 1 210 1.62 MB/sec warmup 5 sec latency 297.392 ms 1 267 1.66 MB/sec warmup 6 sec latency 121.765 ms 1 313 1.64 MB/sec warmup 7 sec latency 130.426 ms 1 357 1.59 MB/sec warmup 8 sec latency 125.113 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2884 1268420 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 2708 1268596 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 47804 3555068 2% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 5296 3598716 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 53100 7153784 1% /mnt/lustre 1 403 1.58 MB/sec warmup 9 sec latency 134.428 ms 1 445 1.56 MB/sec warmup 10 sec latency 148.650 ms 1 492 1.56 MB/sec warmup 11 sec latency 104.094 ms 1 530 1.53 MB/sec warmup 12 sec latency 114.645 ms 1 640 1.62 MB/sec warmup 13 sec latency 88.338 ms 1 664 1.51 MB/sec warmup 14 sec latency 642.410 ms 1 706 1.41 MB/sec warmup 15 sec latency 872.774 ms 1 746 1.33 MB/sec warmup 16 sec latency 112.912 ms 1 799 1.26 MB/sec warmup 17 sec latency 85.348 ms test_26 fail mds2 4 times 1 857 1.20 MB/sec warmup 18 sec latency 93.878 ms Failing mds2 on oleg611-server 1 884 1.14 MB/sec warmup 19 sec latency 197.814 ms Stopping /mnt/lustre-mds2 (opts:) on oleg611-server 1 910 0.08 MB/sec execute 1 sec latency 958.502 ms 1 910 0.04 MB/sec execute 2 sec latency 1460.745 ms 20:31:54 (1787790714) shut down facet: mds2 facet_host: oleg611-server facet_failover_host: oleg611-server 1 910 0.03 MB/sec execute 3 sec latency 2461.125 ms 1 910 0.02 MB/sec execute 4 sec latency 3461.357 ms 1 910 0.02 MB/sec execute 5 sec latency 4461.676 ms 1 910 0.01 MB/sec execute 6 sec latency 5463.076 ms 1 910 0.01 MB/sec execute 7 sec latency 6463.299 ms 1 910 0.01 MB/sec execute 8 sec latency 7463.529 ms 1 910 0.01 MB/sec execute 9 sec latency 8463.859 ms 1 910 0.01 MB/sec execute 10 sec latency 9466.279 ms 1 910 0.01 MB/sec execute 11 sec latency 10466.860 ms 1 910 0.01 MB/sec execute 12 sec latency 11467.235 ms Failover mds2 to oleg611-server mount facets: mds2 1 910 0.01 MB/sec execute 13 sec latency 12467.534 ms 1 910 0.01 MB/sec execute 14 sec latency 13467.754 ms 1 910 0.01 MB/sec execute 15 sec latency 14468.941 ms 1 910 0.01 MB/sec execute 16 sec latency 15469.202 ms 1 910 0.00 MB/sec execute 17 sec latency 16481.322 ms 1 910 0.00 MB/sec execute 18 sec latency 17481.556 ms 1 910 0.00 MB/sec execute 19 sec latency 18481.854 ms 1 910 0.00 MB/sec execute 20 sec latency 19482.071 ms Start mds2: mount -t lustre -o localrecov /dev/mapper/mds2_flakey /mnt/lustre-mds2 1 910 0.00 MB/sec execute 21 sec latency 20482.241 ms 1 910 0.00 MB/sec execute 22 sec latency 21484.153 ms 1 910 0.00 MB/sec execute 23 sec latency 22485.276 ms 1 910 0.00 MB/sec execute 24 sec latency 23486.635 ms 1 910 0.00 MB/sec execute 25 sec latency 24487.190 ms oleg611-server: oleg611-server.virtnet: executing set_default_debug -1 all 1 910 0.00 MB/sec execute 26 sec latency 25487.495 ms pdsh@oleg611-client: oleg611-server: ssh exited with exit code 1 1 910 0.00 MB/sec execute 27 sec latency 26488.050 ms Started lustre-MDT0001 20:32:19 (1787790739) targets are mounted 20:32:19 (1787790739) facet_failover done 1 910 0.00 MB/sec execute 28 sec latency 27488.386 ms 1 918 0.00 MB/sec execute 29 sec latency 28240.091 ms 1 967 0.00 MB/sec execute 30 sec latency 81.598 ms 1 1028 0.04 MB/sec execute 31 sec latency 91.160 ms 1 1086 0.04 MB/sec execute 32 sec latency 72.248 ms 1 1144 0.04 MB/sec execute 33 sec latency 72.435 ms oleg611-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0001-mdc-*.mds_server_uuid 1475 0 1 1190 0.04 MB/sec execute 34 sec latency 107.056 ms mdc.lustre-MDT0001-mdc-*.mds_server_uuid in FULL state after 0 sec 1 1233 0.04 MB/sec execute 35 sec latency 75.786 ms 1 1296 0.05 MB/sec execute 36 sec latency 93.961 ms 1 1431 0.12 MB/sec execute 37 sec latency 57.538 ms 1 1492 0.11 MB/sec execute 38 sec latency 198.390 ms 1 1566 0.11 MB/sec execute 39 sec latency 63.512 ms 1 1634 0.11 MB/sec execute 40 sec latency 74.381 ms 1 1687 0.11 MB/sec execute 41 sec latency 123.046 ms tar: Unexpected EOF in archive tar: Unexpected EOF in archive 1 1771 0.11 MB/sec execute 42 sec latency 67.727 ms 1 1841 0.11 MB/sec execute 43 sec latency 66.855 ms 1 1909 0.11 MB/sec execute 44 sec latency 109.889 ms 1 1984 0.11 MB/sec execute 45 sec latency 104.975 ms 1 2026 0.11 MB/sec execute 46 sec latency 101.666 ms 1 2098 0.11 MB/sec execute 47 sec latency 97.652 ms 1 2160 0.10 MB/sec execute 48 sec latency 109.839 ms 1 2226 0.10 MB/sec execute 49 sec latency 126.226 ms 1 2345 0.12 MB/sec execute 50 sec latency 56.554 ms tar: Error is not recoverable: exiting now dbench killed by signal 15 stopping dbench on /mnt/lustre at Wed Aug 26 20:32:42 EDT 2026 with return code 0 1 2399 0.12 MB/sec execute 51 sec latency 73.829 ms 68464 pts/0 S+ 0:00 dbench -c client.txt 1 -D /mnt/lustre2/d26.replay-dual/run_dbench -t 100 killed dbench main pid 68464 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished