== replay-dual test 26: dbench and tar with mds failover ========================================================== 20:39:51 (1788655191) Starting client oleg453-client.virtnet: -o user_xattr,flock 192.168.204.153@tcp:/lustre /mnt/lustre Started clients oleg453-client.virtnet: 192.168.204.153@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 65661 Started dbench loop with 65663 striped dir -i0 -c2 -H all_char /mnt/lustre/d26.replay-dual/run_tar striped dir -i0 -c2 -H crush /mnt/lustre2/d26.replay-dual/run_dbench 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 1944 1269360 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 1544 3593032 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 3108 7198488 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 Sat Sep 5 20:39:57 EDT 2026 waiting for dbench pid 65743 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 29 0.98 MB/sec warmup 1 sec latency 5.873 ms 1 71 1.57 MB/sec warmup 2 sec latency 157.152 ms 1 114 1.75 MB/sec warmup 3 sec latency 250.930 ms 1 147 1.57 MB/sec warmup 4 sec latency 254.065 ms 1 184 1.46 MB/sec warmup 5 sec latency 160.012 ms 1 204 1.33 MB/sec warmup 6 sec latency 281.693 ms 1 239 1.31 MB/sec warmup 7 sec latency 140.083 ms 1 270 1.27 MB/sec warmup 8 sec latency 158.415 ms test_26 fail mds1 1 times 1 289 1.19 MB/sec warmup 9 sec latency 202.138 ms 1 315 1.15 MB/sec warmup 10 sec latency 189.353 ms 1 338 1.11 MB/sec warmup 11 sec latency 235.650 ms Failing mds1 on oleg453-server 1 352 1.04 MB/sec warmup 12 sec latency 245.929 ms 1 383 1.04 MB/sec warmup 13 sec latency 146.034 ms Stopping /mnt/lustre-mds1 (opts:) on oleg453-server 1 413 1.04 MB/sec warmup 14 sec latency 144.821 ms 1 428 1.01 MB/sec warmup 15 sec latency 563.739 ms 1 428 0.94 MB/sec warmup 16 sec latency 1563.930 ms 1 428 0.89 MB/sec warmup 17 sec latency 2564.117 ms 20:40:14 (1788655214) shut down facet: mds1 facet_host: oleg453-server facet_failover_host: oleg453-server 1 428 0.84 MB/sec warmup 18 sec latency 3564.367 ms 1 428 0.80 MB/sec warmup 19 sec latency 4564.604 ms 1 428 0.00 MB/sec execute 1 sec latency 6567.575 ms 1 428 0.00 MB/sec execute 2 sec latency 7570.505 ms 1 428 0.00 MB/sec execute 3 sec latency 8572.577 ms 1 428 0.00 MB/sec execute 4 sec latency 9575.284 ms 1 428 0.00 MB/sec execute 5 sec latency 10575.596 ms 1 428 0.00 MB/sec execute 6 sec latency 11575.818 ms 1 428 0.00 MB/sec execute 7 sec latency 12576.017 ms Failover mds1 to oleg453-server mount facets: mds1 1 428 0.00 MB/sec execute 8 sec latency 13585.880 ms 1 428 0.00 MB/sec execute 9 sec latency 14587.658 ms 1 428 0.00 MB/sec execute 10 sec latency 15588.675 ms 1 428 0.00 MB/sec execute 11 sec latency 16590.990 ms 1 428 0.00 MB/sec execute 12 sec latency 17591.305 ms 1 428 0.00 MB/sec execute 13 sec latency 18591.531 ms 1 428 0.00 MB/sec execute 14 sec latency 19591.832 ms 1 428 0.00 MB/sec execute 15 sec latency 20592.023 ms 1 428 0.00 MB/sec execute 16 sec latency 21593.275 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 428 0.00 MB/sec execute 17 sec latency 22593.481 ms 1 428 0.00 MB/sec execute 18 sec latency 23593.691 ms 1 428 0.00 MB/sec execute 19 sec latency 24594.063 ms 1 428 0.00 MB/sec execute 20 sec latency 25594.248 ms 1 428 0.00 MB/sec execute 21 sec latency 26594.797 ms 1 428 0.00 MB/sec execute 22 sec latency 27596.378 ms 1 428 0.00 MB/sec execute 23 sec latency 28596.573 ms 1 428 0.00 MB/sec execute 24 sec latency 29596.934 ms 1 428 0.00 MB/sec execute 25 sec latency 30597.354 ms 1 428 0.00 MB/sec execute 26 sec latency 31597.558 ms 1 428 0.00 MB/sec execute 27 sec latency 32598.388 ms 1 428 0.00 MB/sec execute 28 sec latency 33599.654 ms 1 428 0.00 MB/sec execute 29 sec latency 34609.019 ms 1 428 0.00 MB/sec execute 30 sec latency 35609.227 ms 1 428 0.00 MB/sec execute 31 sec latency 36610.247 ms oleg453-server: oleg453-server.virtnet: executing set_default_debug -1 all 1 428 0.00 MB/sec execute 32 sec latency 37611.064 ms pdsh@oleg453-client: oleg453-server: ssh exited with exit code 1 Started lustre-MDT0000 1 428 0.00 MB/sec execute 33 sec latency 38611.716 ms 20:40:50 (1788655250) targets are mounted 20:40:50 (1788655250) facet_failover done 1 428 0.00 MB/sec execute 34 sec latency 39612.484 ms 1 445 0.01 MB/sec execute 35 sec latency 39943.818 ms 1 469 0.04 MB/sec execute 36 sec latency 174.298 ms 1 502 0.06 MB/sec execute 37 sec latency 162.488 ms 1 528 0.08 MB/sec execute 38 sec latency 244.017 ms 1 552 0.10 MB/sec execute 39 sec latency 505.328 ms 1 590 0.13 MB/sec execute 40 sec latency 1058.704 ms 1 642 0.14 MB/sec execute 41 sec latency 117.788 ms oleg453-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 678 0.14 MB/sec execute 42 sec latency 130.172 ms 1 710 0.14 MB/sec execute 43 sec latency 187.423 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 746 0.14 MB/sec execute 44 sec latency 196.574 ms 1 779 0.14 MB/sec execute 45 sec latency 183.348 ms 1 815 0.14 MB/sec execute 46 sec latency 111.156 ms 1 864 0.14 MB/sec execute 47 sec latency 99.164 ms 1 902 0.14 MB/sec execute 48 sec latency 123.292 ms 1 949 0.14 MB/sec execute 49 sec latency 120.925 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2108 1269196 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 1940 1269364 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 12452 3589012 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 42076 3562692 2% /mnt/lustre[OST:1] filesystem_summary: 7666232 54528 7151704 1% /mnt/lustre 1 985 0.14 MB/sec execute 50 sec latency 121.566 ms 1 1050 0.15 MB/sec execute 51 sec latency 71.658 ms 1 1099 0.15 MB/sec execute 52 sec latency 73.610 ms 1 1147 0.15 MB/sec execute 53 sec latency 87.720 ms 1 1172 0.15 MB/sec execute 54 sec latency 581.856 ms 1 1200 0.14 MB/sec execute 55 sec latency 818.846 ms 1 1235 0.14 MB/sec execute 56 sec latency 138.049 ms 1 1281 0.14 MB/sec execute 57 sec latency 139.012 ms 1 1405 0.19 MB/sec execute 58 sec latency 131.229 ms test_26 fail mds2 2 times 1 1442 0.18 MB/sec execute 59 sec latency 109.319 ms 1 1490 0.18 MB/sec execute 60 sec latency 143.156 ms Failing mds2 on oleg453-server 1 1516 0.18 MB/sec execute 61 sec latency 116.952 ms Stopping /mnt/lustre-mds2 (opts:) on oleg453-server 1 1560 0.18 MB/sec execute 62 sec latency 109.117 ms 1 1601 0.17 MB/sec execute 63 sec latency 96.665 ms 1 1653 0.17 MB/sec execute 64 sec latency 74.831 ms 1 1700 0.17 MB/sec execute 65 sec latency 98.738 ms 1 1799 0.17 MB/sec execute 66 sec latency 67.887 ms 1 1883 0.17 MB/sec execute 67 sec latency 64.570 ms 1 1956 0.17 MB/sec execute 68 sec latency 127.241 ms 1 2024 0.17 MB/sec execute 69 sec latency 76.254 ms 1 2087 0.16 MB/sec execute 70 sec latency 95.556 ms 1 2148 0.16 MB/sec execute 71 sec latency 130.633 ms 20:41:28 (1788655288) shut down facet: mds2 facet_host: oleg453-server facet_failover_host: oleg453-server 1 2198 0.16 MB/sec execute 72 sec latency 109.100 ms 1 2259 0.16 MB/sec execute 73 sec latency 344.712 ms 1 2259 0.16 MB/sec execute 74 sec latency 1345.030 ms 1 2259 0.16 MB/sec execute 75 sec latency 2345.507 ms 1 2259 0.15 MB/sec execute 76 sec latency 3345.760 ms 1 2259 0.15 MB/sec execute 77 sec latency 4346.299 ms 1 2259 0.15 MB/sec execute 78 sec latency 5351.998 ms 1 2259 0.15 MB/sec execute 79 sec latency 6355.093 ms 1 2259 0.15 MB/sec execute 80 sec latency 7355.559 ms 1 2259 0.14 MB/sec execute 81 sec latency 8356.647 ms Failover mds2 to oleg453-server mount facets: mds2 1 2259 0.14 MB/sec execute 82 sec latency 9356.856 ms 1 2259 0.14 MB/sec execute 83 sec latency 10357.094 ms 1 2259 0.14 MB/sec execute 84 sec latency 11357.468 ms 1 2259 0.14 MB/sec execute 85 sec latency 12357.768 ms 1 2259 0.14 MB/sec execute 86 sec latency 13358.243 ms 1 2259 0.13 MB/sec execute 87 sec latency 14358.716 ms 1 2259 0.13 MB/sec execute 88 sec latency 15359.380 ms 1 2259 0.13 MB/sec execute 89 sec latency 16359.580 ms 1 2259 0.13 MB/sec execute 90 sec latency 17361.169 ms 1 2259 0.13 MB/sec execute 91 sec latency 18361.396 ms Start mds2: mount -t lustre -o localrecov /dev/mapper/mds2_flakey /mnt/lustre-mds2 1 2259 0.13 MB/sec execute 92 sec latency 19363.418 ms 1 2259 0.13 MB/sec execute 93 sec latency 20363.914 ms 1 2259 0.12 MB/sec execute 94 sec latency 21364.196 ms 1 2259 0.12 MB/sec execute 95 sec latency 22364.394 ms 1 2259 0.12 MB/sec execute 96 sec latency 23364.625 ms 1 2259 0.12 MB/sec execute 97 sec latency 24364.901 ms oleg453-server: oleg453-server.virtnet: executing set_default_debug -1 all 1 2259 0.12 MB/sec execute 98 sec latency 25365.241 ms pdsh@oleg453-client: oleg453-server: ssh exited with exit code 1 1 2259 0.12 MB/sec execute 99 sec latency 26365.972 ms Started lustre-MDT0001 20:41:57 (1788655317) targets are mounted 20:41:57 (1788655317) facet_failover done 1 cleanup 100 sec 1 cleanup 101 sec 1 cleanup 102 sec 1 cleanup 103 sec 0 cleanup 103 sec Operation Count AvgLat MaxLat ---------------------------------------- NTCreateX 329 135.735 27319.661 Close 286 151.269 39943.794 Rename 11 100.132 196.551 Unlink 30 22.389 43.088 Qpathinfo 295 13.919 85.786 Qfileinfo 78 2.170 18.955 Qfsinfo 33 3.228 20.660 Sfileinfo 34 59.303 138.029 Find 92 12.145 73.334 WriteX 268 15.627 109.305 ReadX 350 3.046 127.210 Flush 30 46.258 105.423 Throughput 0.117595 MB/sec 1 clients 1 procs max_latency=39943.818 ms stopping dbench on /mnt/lustre at Sat Sep 5 20:42:00 EDT 2026 with return code 0 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished oleg453-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0001-mdc-*.mds_server_uuid 1475 0 striped dir -i0 -c2 -H crush /mnt/lustre2/d26.replay-dual/run_dbench mdc.lustre-MDT0001-mdc-*.mds_server_uuid in FULL state after 0 sec 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 Sat Sep 5 20:42:09 EDT 2026 waiting for dbench pid 67848 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 24 0.65 MB/sec warmup 1 sec latency 17.001 ms 1 88 2.03 MB/sec warmup 2 sec latency 107.904 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2300 1269004 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 2196 1269108 1% /mnt/lustre[MDT:1] 1 129 1.92 MB/sec warmup 3 sec latency 152.583 ms lustre-OST0000_UUID 3833116 35344 3569176 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 11296 3595512 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 46640 7164688 1% /mnt/lustre 1 157 1.63 MB/sec warmup 4 sec latency 188.849 ms 1 184 1.48 MB/sec warmup 5 sec latency 418.133 ms 1 215 1.39 MB/sec warmup 6 sec latency 422.775 ms 1 255 1.38 MB/sec warmup 7 sec latency 116.073 ms 1 287 1.33 MB/sec warmup 8 sec latency 126.287 ms 1 336 1.34 MB/sec warmup 9 sec latency 137.783 ms 1 380 1.35 MB/sec warmup 10 sec latency 124.572 ms 1 426 1.36 MB/sec warmup 11 sec latency 113.963 ms 1 478 1.39 MB/sec warmup 12 sec latency 136.278 ms test_26 fail mds1 3 times 1 517 1.36 MB/sec warmup 13 sec latency 131.240 ms Failing mds1 on oleg453-server 1 608 1.49 MB/sec warmup 14 sec latency 94.560 ms Stopping /mnt/lustre-mds1 (opts:) on oleg453-server 1 672 1.41 MB/sec warmup 15 sec latency 81.670 ms 1 695 1.32 MB/sec warmup 16 sec latency 478.564 ms 1 695 1.24 MB/sec warmup 17 sec latency 1478.844 ms 1 695 1.17 MB/sec warmup 18 sec latency 2479.052 ms 1 695 1.11 MB/sec warmup 19 sec latency 3479.358 ms 1 695 0.00 MB/sec execute 1 sec latency 5480.343 ms 1 695 0.00 MB/sec execute 2 sec latency 6481.179 ms 1 695 0.00 MB/sec execute 3 sec latency 7481.836 ms 20:42:32 (1788655352) shut down facet: mds1 facet_host: oleg453-server facet_failover_host: oleg453-server 1 695 0.00 MB/sec execute 4 sec latency 8482.008 ms 1 695 0.00 MB/sec execute 5 sec latency 9483.656 ms 1 695 0.00 MB/sec execute 6 sec latency 10483.840 ms 1 695 0.00 MB/sec execute 7 sec latency 11486.469 ms 1 695 0.00 MB/sec execute 8 sec latency 12487.329 ms 1 695 0.00 MB/sec execute 9 sec latency 13487.768 ms 1 695 0.00 MB/sec execute 10 sec latency 14488.015 ms 1 695 0.00 MB/sec execute 11 sec latency 15488.388 ms 1 695 0.00 MB/sec execute 12 sec latency 16488.660 ms 1 695 0.00 MB/sec execute 13 sec latency 17489.397 ms Failover mds1 to oleg453-server mount facets: mds1 1 695 0.00 MB/sec execute 14 sec latency 18492.022 ms 1 695 0.00 MB/sec execute 15 sec latency 19495.219 ms 1 695 0.00 MB/sec execute 16 sec latency 20495.893 ms 1 695 0.00 MB/sec execute 17 sec latency 21496.157 ms 1 695 0.00 MB/sec execute 18 sec latency 22497.190 ms 1 695 0.00 MB/sec execute 19 sec latency 23497.366 ms 1 695 0.00 MB/sec execute 20 sec latency 24497.557 ms 1 695 0.00 MB/sec execute 21 sec latency 25497.839 ms 1 695 0.00 MB/sec execute 22 sec latency 26498.291 ms 1 695 0.00 MB/sec execute 23 sec latency 27500.354 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 695 0.00 MB/sec execute 24 sec latency 28504.943 ms 1 695 0.00 MB/sec execute 25 sec latency 29506.989 ms 1 695 0.00 MB/sec execute 26 sec latency 30507.311 ms 1 695 0.00 MB/sec execute 27 sec latency 31509.947 ms 1 695 0.00 MB/sec execute 28 sec latency 32511.282 ms 1 695 0.00 MB/sec execute 29 sec latency 33511.781 ms 1 695 0.00 MB/sec execute 30 sec latency 34512.021 ms 1 695 0.00 MB/sec execute 31 sec latency 35512.222 ms 1 695 0.00 MB/sec execute 32 sec latency 36512.410 ms oleg453-server: oleg453-server.virtnet: executing set_default_debug -1 all 1 695 0.00 MB/sec execute 33 sec latency 37516.322 ms pdsh@oleg453-client: oleg453-server: ssh exited with exit code 1 1 695 0.00 MB/sec execute 34 sec latency 38516.520 ms Started lustre-MDT0000 20:43:04 (1788655384) targets are mounted 20:43:04 (1788655384) facet_failover done 1 695 0.00 MB/sec execute 35 sec latency 39519.104 ms 1 720 0.00 MB/sec execute 36 sec latency 39601.181 ms 1 735 0.00 MB/sec execute 37 sec latency 667.572 ms 1 779 0.00 MB/sec execute 38 sec latency 151.030 ms 1 811 0.01 MB/sec execute 39 sec latency 130.855 ms 1 864 0.01 MB/sec execute 40 sec latency 140.589 ms oleg453-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 892 0.01 MB/sec execute 41 sec latency 118.162 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 921 0.01 MB/sec execute 42 sec latency 138.821 ms 1 967 0.01 MB/sec execute 43 sec latency 119.053 ms 1 990 0.02 MB/sec execute 44 sec latency 126.554 ms 1 1061 0.04 MB/sec execute 45 sec latency 82.655 ms 1 1103 0.04 MB/sec execute 46 sec latency 91.940 ms 1 1148 0.04 MB/sec execute 47 sec latency 150.651 ms 1 1196 0.04 MB/sec execute 48 sec latency 104.770 ms 1 1244 0.04 MB/sec execute 49 sec latency 73.910 ms tar: Unexpected EOF in archive tar: Unexpected EOF in archive 1 1319 0.06 MB/sec execute 50 sec latency 163.788 ms 1 1394 0.09 MB/sec execute 51 sec latency 591.286 ms 1 1436 0.09 MB/sec execute 52 sec latency 93.166 ms 1 1486 0.09 MB/sec execute 53 sec latency 95.868 ms 1 1524 0.09 MB/sec execute 54 sec latency 102.280 ms 1 1573 0.09 MB/sec execute 55 sec latency 99.584 ms 1 1610 0.09 MB/sec execute 56 sec latency 116.292 ms 1 1653 0.09 MB/sec execute 57 sec latency 182.583 ms 1 1696 0.09 MB/sec execute 58 sec latency 105.574 ms 1 1775 0.09 MB/sec execute 59 sec latency 79.942 ms 1 1836 0.09 MB/sec execute 60 sec latency 125.182 ms tar: Error is not recoverable: exiting now dbench killed by signal 15 stopping dbench on /mnt/lustre at Sat Sep 5 20:43:29 EDT 2026 with return code 0 67848 pts/0 S+ 0:00 dbench -c client.txt 1 -D /mnt/lustre2/d26.replay-dual/run_dbench -t 100 killed dbench main pid 67848 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished