== replay-dual test 26: dbench and tar with mds failover ========================================================== 02:21:24 (1770448884) Starting client oleg159-client.virtnet: -o user_xattr,flock 192.168.201.159@tcp:/lustre /mnt/lustre Started clients oleg159-client.virtnet: 192.168.201.159@tcp:/lustre on /mnt/lustre type lustre (rw,checksum,encrypt,flock,lazystatfs,lruresize,nolock,statfs_project,nouser_fid2path,user_xattr,verbose) Started tar loop with pid 44508 Started dbench loop with 44509 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 2210688 3328 2205312 1% /mnt/lustre[MDT:0] lustre-OST0000_UUID 3771392 3072 3759104 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3771392 15360 3739648 1% /mnt/lustre[OST:1] filesystem_summary: 7542784 18432 7498752 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 Feb 7 02:21:32 EST 2026 waiting for dbench pid 44577 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 0 10 0.00 MB/sec warmup 1 sec latency 30.463 ms 1 42 0.79 MB/sec warmup 2 sec latency 183.414 ms 1 82 1.22 MB/sec warmup 3 sec latency 202.360 ms 1 121 1.37 MB/sec warmup 4 sec latency 196.509 ms 1 147 1.25 MB/sec warmup 5 sec latency 144.825 ms test_26 fail mds1 1 times 1 166 1.13 MB/sec warmup 6 sec latency 216.648 ms 1 182 1.04 MB/sec warmup 7 sec latency 249.428 ms 1 197 0.98 MB/sec warmup 8 sec latency 331.167 ms Failing mds1 on oleg159-server 1 224 0.96 MB/sec warmup 9 sec latency 245.798 ms Stopping /mnt/lustre-mds1 (opts:) on oleg159-server 1 263 0.99 MB/sec warmup 10 sec latency 131.272 ms 1 287 0.97 MB/sec warmup 11 sec latency 143.341 ms 1 287 0.89 MB/sec warmup 12 sec latency 1054.517 ms 1 287 0.82 MB/sec warmup 13 sec latency 2055.395 ms 1 287 0.76 MB/sec warmup 14 sec latency 3056.431 ms 02:21:46 (1770448906) shut down facet: mds1 facet_host: oleg159-server facet_failover_host: oleg159-server 1 287 0.71 MB/sec warmup 15 sec latency 4058.176 ms 1 287 0.67 MB/sec warmup 16 sec latency 5058.420 ms 1 287 0.63 MB/sec warmup 17 sec latency 6058.890 ms 1 287 0.59 MB/sec warmup 18 sec latency 7059.187 ms 1 287 0.56 MB/sec warmup 19 sec latency 8060.067 ms 1 287 0.00 MB/sec execute 1 sec latency 10061.529 ms 1 287 0.00 MB/sec execute 2 sec latency 11061.757 ms 1 287 0.00 MB/sec execute 3 sec latency 12061.987 ms 1 287 0.00 MB/sec execute 4 sec latency 13062.976 ms 1 287 0.00 MB/sec execute 5 sec latency 14066.132 ms Failover mds1 to oleg159-server mount facets: mds1 1 287 0.00 MB/sec execute 6 sec latency 15066.568 ms 1 287 0.00 MB/sec execute 7 sec latency 16068.408 ms 1 287 0.00 MB/sec execute 8 sec latency 17069.624 ms 1 287 0.00 MB/sec execute 9 sec latency 18070.432 ms 1 287 0.00 MB/sec execute 10 sec latency 19073.675 ms Start mds1: mount -t lustre -o localrecov lustre-mdt1/mdt1 /mnt/lustre-mds1 1 287 0.00 MB/sec execute 11 sec latency 20074.043 ms 1 287 0.00 MB/sec execute 12 sec latency 21074.377 ms 1 287 0.00 MB/sec execute 13 sec latency 22074.984 ms 1 287 0.00 MB/sec execute 14 sec latency 23075.432 ms 1 287 0.00 MB/sec execute 15 sec latency 24076.344 ms 1 287 0.00 MB/sec execute 16 sec latency 25083.259 ms 1 287 0.00 MB/sec execute 17 sec latency 26083.749 ms 1 287 0.00 MB/sec execute 18 sec latency 27084.320 ms 1 287 0.00 MB/sec execute 19 sec latency 28085.279 ms 1 287 0.00 MB/sec execute 20 sec latency 29085.515 ms 1 287 0.00 MB/sec execute 21 sec latency 30085.767 ms 1 287 0.00 MB/sec execute 22 sec latency 31086.929 ms 1 287 0.00 MB/sec execute 23 sec latency 32087.410 ms 1 287 0.00 MB/sec execute 24 sec latency 33087.637 ms 1 287 0.00 MB/sec execute 25 sec latency 34090.494 ms 1 287 0.00 MB/sec execute 26 sec latency 35090.899 ms 1 287 0.00 MB/sec execute 27 sec latency 36091.246 ms 1 287 0.00 MB/sec execute 28 sec latency 37091.535 ms oleg159-server: oleg159-server.virtnet: executing set_default_debug -1 all 1 287 0.00 MB/sec execute 29 sec latency 38092.387 ms 1 287 0.00 MB/sec execute 30 sec latency 39093.228 ms pdsh@oleg159-client: oleg159-server: ssh exited with exit code 1 1 287 0.00 MB/sec execute 31 sec latency 40095.972 ms Started lustre-MDT0000 02:22:23 (1770448943) targets are mounted 02:22:23 (1770448943) facet_failover done 1 287 0.00 MB/sec execute 32 sec latency 41096.525 ms 1 289 0.00 MB/sec execute 33 sec latency 41999.658 ms 1 318 0.02 MB/sec execute 34 sec latency 176.460 ms 1 341 0.04 MB/sec execute 35 sec latency 206.372 ms 1 369 0.07 MB/sec execute 36 sec latency 169.971 ms 1 389 0.08 MB/sec execute 37 sec latency 183.737 ms oleg159-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1 408 0.10 MB/sec execute 38 sec latency 315.472 ms 1 430 0.11 MB/sec execute 39 sec latency 212.952 ms 1 453 0.13 MB/sec execute 40 sec latency 205.383 ms 1 477 0.15 MB/sec execute 41 sec latency 175.225 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 501 0.16 MB/sec execute 42 sec latency 222.818 ms 1 522 0.17 MB/sec execute 43 sec latency 169.217 ms 1 566 0.19 MB/sec execute 44 sec latency 328.780 ms 1 616 0.23 MB/sec execute 45 sec latency 157.205 ms 1 648 0.22 MB/sec execute 46 sec latency 171.845 ms 1 664 0.22 MB/sec execute 47 sec latency 185.258 ms 1 682 0.22 MB/sec execute 48 sec latency 256.076 ms 1 708 0.21 MB/sec execute 49 sec latency 173.519 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 2210560 3584 2204928 1% /mnt/lustre[MDT:0] 1 721 0.21 MB/sec execute 50 sec latency 295.129 ms lustre-OST0000_UUID 3771392 12288 3721216 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3771392 36864 3705856 1% /mnt/lustre[OST:1] filesystem_summary: 7542784 49152 7427072 1% /mnt/lustre 1 733 0.21 MB/sec execute 51 sec latency 348.237 ms 1 749 0.20 MB/sec execute 52 sec latency 155.708 ms 1 778 0.20 MB/sec execute 53 sec latency 169.002 ms 1 794 0.20 MB/sec execute 54 sec latency 216.433 ms 1 812 0.20 MB/sec execute 55 sec latency 157.421 ms 1 848 0.19 MB/sec execute 56 sec latency 114.486 ms 1 864 0.19 MB/sec execute 57 sec latency 132.409 ms test_26 fail mds1 2 times 1 878 0.19 MB/sec execute 58 sec latency 267.644 ms 1 900 0.19 MB/sec execute 59 sec latency 197.031 ms Failing mds1 on oleg159-server 1 913 0.18 MB/sec execute 60 sec latency 242.483 ms 1 929 0.18 MB/sec execute 61 sec latency 335.089 ms Stopping /mnt/lustre-mds1 (opts:) on oleg159-server 1 949 0.18 MB/sec execute 62 sec latency 142.992 ms 1 967 0.18 MB/sec execute 63 sec latency 268.618 ms 1 967 0.17 MB/sec execute 64 sec latency 1269.149 ms 1 967 0.17 MB/sec execute 65 sec latency 2270.019 ms 1 967 0.17 MB/sec execute 66 sec latency 3270.298 ms 1 967 0.17 MB/sec execute 67 sec latency 4272.020 ms 1 967 0.16 MB/sec execute 68 sec latency 5272.262 ms 1 967 0.16 MB/sec execute 69 sec latency 6273.363 ms 1 967 0.16 MB/sec execute 70 sec latency 7273.597 ms 1 967 0.16 MB/sec execute 71 sec latency 8273.790 ms 1 967 0.15 MB/sec execute 72 sec latency 9274.221 ms 02:23:04 (1770448984) shut down facet: mds1 facet_host: oleg159-server facet_failover_host: oleg159-server 1 967 0.15 MB/sec execute 73 sec latency 10283.547 ms 1 967 0.15 MB/sec execute 74 sec latency 11285.952 ms 1 967 0.15 MB/sec execute 75 sec latency 12288.838 ms 1 967 0.15 MB/sec execute 76 sec latency 13289.097 ms 1 967 0.14 MB/sec execute 77 sec latency 14289.741 ms 1 967 0.14 MB/sec execute 78 sec latency 15291.068 ms 1 967 0.14 MB/sec execute 79 sec latency 16291.742 ms 1 967 0.14 MB/sec execute 80 sec latency 17292.146 ms 1 967 0.14 MB/sec execute 81 sec latency 18293.094 ms 1 967 0.14 MB/sec execute 82 sec latency 19295.458 ms Failover mds1 to oleg159-server mount facets: mds1 1 967 0.13 MB/sec execute 83 sec latency 20296.560 ms 1 967 0.13 MB/sec execute 84 sec latency 21299.423 ms 1 967 0.13 MB/sec execute 85 sec latency 22300.002 ms 1 967 0.13 MB/sec execute 86 sec latency 23303.372 ms 1 967 0.13 MB/sec execute 87 sec latency 24305.026 ms Start mds1: mount -t lustre -o localrecov lustre-mdt1/mdt1 /mnt/lustre-mds1 1 967 0.13 MB/sec execute 88 sec latency 25305.752 ms 1 967 0.12 MB/sec execute 89 sec latency 26306.214 ms 1 967 0.12 MB/sec execute 90 sec latency 27307.950 ms 1 967 0.12 MB/sec execute 91 sec latency 28308.328 ms 1 967 0.12 MB/sec execute 92 sec latency 29308.652 ms 1 967 0.12 MB/sec execute 93 sec latency 30309.944 ms 1 967 0.12 MB/sec execute 94 sec latency 31310.228 ms 1 967 0.12 MB/sec execute 95 sec latency 32312.143 ms oleg159-server: oleg159-server.virtnet: executing set_default_debug -1 all 1 967 0.12 MB/sec execute 96 sec latency 33313.027 ms 1 967 0.11 MB/sec execute 97 sec latency 34313.370 ms pdsh@oleg159-client: oleg159-server: ssh exited with exit code 1 1 967 0.11 MB/sec execute 98 sec latency 35313.685 ms Started lustre-MDT0000 02:23:31 (1770449011) targets are mounted 02:23:31 (1770449011) facet_failover done 1 967 0.11 MB/sec execute 99 sec latency 36314.305 ms 1 cleanup 100 sec 1 cleanup 101 sec 1 cleanup 102 sec 1 cleanup 103 sec 1 cleanup 104 sec 1 cleanup 105 sec oleg159-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1 cleanup 106 sec 0 cleanup 107 sec Operation Count AvgLat MaxLat ---------------------------------------- NTCreateX 98 956.933 41999.637 Close 90 20.310 60.019 Rename 3 180.987 207.541 Unlink 9 47.948 61.350 Qpathinfo 28 32.584 83.461 Qfileinfo 51 3.936 12.861 Qfsinfo 17 5.147 19.159 Sfileinfo 16 93.327 171.829 Find 23 89.371 157.186 WriteX 244 20.946 130.789 ReadX 80 6.909 109.344 Flush 22 174.707 348.218 Throughput 0.112066 MB/sec 1 clients 1 procs max_latency=41999.658 ms stopping dbench on /mnt/lustre at Sat Feb 7 02:23:39 EST 2026 with return code 0 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished mdc.lustre-MDT0000-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 Feb 7 02:23:46 EST 2026 waiting for dbench pid 46531 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 20 0.39 MB/sec warmup 1 sec latency 22.803 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 2210560 3840 2204672 1% /mnt/lustre[MDT:0] lustre-OST0000_UUID 3771392 39936 3712000 2% /mnt/lustre[OST:0] lustre-OST0001_UUID 3771392 32768 3734528 1% /mnt/lustre[OST:1] filesystem_summary: 7542784 72704 7446528 1% /mnt/lustre 1 60 1.24 MB/sec warmup 2 sec latency 214.865 ms 1 92 1.39 MB/sec warmup 3 sec latency 204.930 ms 1 129 1.44 MB/sec warmup 4 sec latency 248.481 ms 1 155 1.31 MB/sec warmup 5 sec latency 178.011 ms 1 181 1.22 MB/sec warmup 6 sec latency 187.803 ms 1 199 1.12 MB/sec warmup 7 sec latency 244.660 ms 1 231 1.11 MB/sec warmup 8 sec latency 153.705 ms 1 264 1.10 MB/sec warmup 9 sec latency 148.901 ms test_26 fail mds1 3 times 1 290 1.07 MB/sec warmup 10 sec latency 171.501 ms 1 316 1.04 MB/sec warmup 11 sec latency 155.860 ms Failing mds1 on oleg159-server 1 339 1.02 MB/sec warmup 12 sec latency 183.833 ms 1 365 1.00 MB/sec warmup 13 sec latency 203.890 ms Stopping /mnt/lustre-mds1 (opts:) on oleg159-server 1 397 1.00 MB/sec warmup 14 sec latency 179.204 ms 1 404 0.95 MB/sec warmup 15 sec latency 833.041 ms 1 404 0.90 MB/sec warmup 16 sec latency 1833.562 ms 02:24:04 (1770449044) shut down 1 404 0.84 MB/sec warmup 17 sec latency 2833.935 ms facet: mds1 facet_host: oleg159-server facet_failover_host: oleg159-server 1 404 0.80 MB/sec warmup 18 sec latency 3837.059 ms 1 404 0.75 MB/sec warmup 19 sec latency 4838.035 ms 1 404 0.00 MB/sec execute 1 sec latency 6840.020 ms 1 404 0.00 MB/sec execute 2 sec latency 7840.298 ms 1 404 0.00 MB/sec execute 3 sec latency 8840.786 ms 1 404 0.00 MB/sec execute 4 sec latency 9841.244 ms 1 404 0.00 MB/sec execute 5 sec latency 10841.650 ms 1 404 0.00 MB/sec execute 6 sec latency 11843.907 ms 1 404 0.00 MB/sec execute 7 sec latency 12848.022 ms Failover mds1 to oleg159-server mount facets: mds1 1 404 0.00 MB/sec execute 8 sec latency 13848.216 ms 1 404 0.00 MB/sec execute 9 sec latency 14849.487 ms 1 404 0.00 MB/sec execute 10 sec latency 15850.051 ms 1 404 0.00 MB/sec execute 11 sec latency 16850.394 ms 1 404 0.00 MB/sec execute 12 sec latency 17850.983 ms Start mds1: mount -t lustre -o localrecov lustre-mdt1/mdt1 /mnt/lustre-mds1 1 404 0.00 MB/sec execute 13 sec latency 18852.289 ms 1 404 0.00 MB/sec execute 14 sec latency 19853.485 ms 1 404 0.00 MB/sec execute 15 sec latency 20853.735 ms 1 404 0.00 MB/sec execute 16 sec latency 21855.631 ms 1 404 0.00 MB/sec execute 17 sec latency 22855.883 ms 1 404 0.00 MB/sec execute 18 sec latency 23856.140 ms 1 404 0.00 MB/sec execute 19 sec latency 24856.403 ms 1 404 0.00 MB/sec execute 20 sec latency 25857.038 ms 1 404 0.00 MB/sec execute 21 sec latency 26857.380 ms oleg159-server: oleg159-server.virtnet: executing set_default_debug -1 all 1 404 0.00 MB/sec execute 22 sec latency 27861.374 ms 1 404 0.00 MB/sec execute 23 sec latency 28863.276 ms pdsh@oleg159-client: oleg159-server: ssh exited with exit code 1 1 404 0.00 MB/sec execute 24 sec latency 29864.030 ms 1 404 0.00 MB/sec execute 25 sec latency 30864.525 ms Started lustre-MDT0000 02:24:32 (1770449072) targets are mounted 02:24:32 (1770449072) facet_failover done 1 404 0.00 MB/sec execute 26 sec latency 31866.615 ms 1 404 0.00 MB/sec execute 27 sec latency 32870.904 ms 1 404 0.00 MB/sec execute 28 sec latency 33871.162 ms 1 404 0.00 MB/sec execute 29 sec latency 34872.061 ms 1 404 0.00 MB/sec execute 30 sec latency 35874.931 ms 1 404 0.00 MB/sec execute 31 sec latency 36878.533 ms 1 404 0.00 MB/sec execute 32 sec latency 37880.369 ms 1 405 0.00 MB/sec execute 33 sec latency 38603.925 ms 1 431 0.02 MB/sec execute 34 sec latency 394.066 ms 1 461 0.05 MB/sec execute 35 sec latency 193.036 ms 1 484 0.07 MB/sec execute 36 sec latency 200.899 ms oleg159-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1 511 0.09 MB/sec execute 37 sec latency 149.129 ms 1 552 0.12 MB/sec execute 38 sec latency 201.046 ms 1 609 0.17 MB/sec execute 39 sec latency 164.108 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 644 0.17 MB/sec execute 40 sec latency 175.391 ms 1 664 0.17 MB/sec execute 41 sec latency 158.685 ms 1 676 0.16 MB/sec execute 42 sec latency 514.812 ms 1 697 0.16 MB/sec execute 43 sec latency 186.328 ms 1 721 0.16 MB/sec execute 44 sec latency 159.284 ms 1 733 0.15 MB/sec execute 45 sec latency 294.026 ms 1 759 0.15 MB/sec execute 46 sec latency 177.775 ms 1 779 0.15 MB/sec execute 47 sec latency 144.689 ms 1 794 0.15 MB/sec execute 48 sec latency 366.362 ms 1 806 0.15 MB/sec execute 49 sec latency 190.648 ms 1 827 0.14 MB/sec execute 50 sec latency 113.415 ms 1 863 0.14 MB/sec execute 51 sec latency 164.229 ms 1 878 0.14 MB/sec execute 52 sec latency 346.091 ms 1 898 0.14 MB/sec execute 53 sec latency 158.475 ms 1 913 0.14 MB/sec execute 54 sec latency 392.567 ms 1 931 0.13 MB/sec execute 55 sec latency 462.595 ms 1 955 0.13 MB/sec execute 56 sec latency 128.002 ms 1 977 0.13 MB/sec execute 57 sec latency 158.209 ms 1 986 0.13 MB/sec execute 58 sec latency 475.770 ms 1 1027 0.14 MB/sec execute 59 sec latency 163.292 ms 1 1050 0.14 MB/sec execute 60 sec latency 123.021 ms 1 1077 0.14 MB/sec execute 61 sec latency 129.476 ms 1 1114 0.14 MB/sec execute 62 sec latency 138.580 ms 1 1134 0.14 MB/sec execute 63 sec latency 155.624 ms 1 1157 0.14 MB/sec execute 64 sec latency 141.851 ms 1 1178 0.13 MB/sec execute 65 sec latency 156.716 ms 1 1201 0.13 MB/sec execute 66 sec latency 135.608 ms dbench killed by signal 15 stopping dbench on /mnt/lustre at Sat Feb 7 02:25:13 EST 2026 with return code 0 46531 pts/0 S+ 0:00 dbench -c client.txt 1 -D /mnt/lustre2/d26.replay-dual/run_dbench -t 100 killed dbench main pid 46531 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished