== replay-dual test 26: dbench and tar with mds failover ========================================================== 11:18:04 (1787584684) Starting client oleg252-client.virtnet: -o user_xattr,flock 192.168.202.152@tcp:/lustre /mnt/lustre Started clients oleg252-client.virtnet: 192.168.202.152@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 45269 Started dbench loop with 45270 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 2210560 2048 2206464 1% /mnt/lustre[MDT:0] lustre-OST0000_UUID 3771392 2048 3741696 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3771392 2048 3765248 1% /mnt/lustre[OST:1] filesystem_summary: 7542784 4096 7506944 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 Mon Aug 24 11:18:11 EDT 2026 waiting for dbench pid 45340 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 14 0.00 MB/sec warmup 1 sec latency 45.942 ms 1 59 1.21 MB/sec warmup 2 sec latency 185.233 ms 1 101 1.54 MB/sec warmup 3 sec latency 145.977 ms 1 137 1.50 MB/sec warmup 4 sec latency 176.820 ms 1 165 1.36 MB/sec warmup 5 sec latency 170.204 ms test_26 fail mds1 1 times 1 189 1.26 MB/sec warmup 6 sec latency 149.663 ms 1 215 1.19 MB/sec warmup 7 sec latency 187.522 ms Failing mds1 on oleg252-server 1 247 1.17 MB/sec warmup 8 sec latency 155.953 ms Stopping /mnt/lustre-mds1 (opts:) on oleg252-server 1 279 1.16 MB/sec warmup 9 sec latency 183.454 ms 1 296 1.09 MB/sec warmup 10 sec latency 549.720 ms 1 296 0.99 MB/sec warmup 11 sec latency 1550.316 ms 1 296 0.91 MB/sec warmup 12 sec latency 2550.867 ms 11:18:23 (1787584703) shut down facet: mds1 facet_host: oleg252-server facet_failover_host: oleg252-server 1 296 0.84 MB/sec warmup 13 sec latency 3551.417 ms 1 296 0.78 MB/sec warmup 14 sec latency 4554.051 ms 1 296 0.73 MB/sec warmup 15 sec latency 5554.221 ms 1 296 0.68 MB/sec warmup 16 sec latency 6558.355 ms 1 296 0.64 MB/sec warmup 17 sec latency 7558.626 ms 1 296 0.61 MB/sec warmup 18 sec latency 8560.141 ms 1 296 0.58 MB/sec warmup 19 sec latency 9560.450 ms 1 296 0.00 MB/sec execute 1 sec latency 11560.850 ms 1 296 0.00 MB/sec execute 2 sec latency 12561.034 ms Failover mds1 to oleg252-server 1 296 0.00 MB/sec execute 3 sec latency 13563.098 ms mount facets: mds1 1 296 0.00 MB/sec execute 4 sec latency 14563.301 ms 1 296 0.00 MB/sec execute 5 sec latency 15563.516 ms 1 296 0.00 MB/sec execute 6 sec latency 16563.710 ms 1 296 0.00 MB/sec execute 7 sec latency 17564.925 ms 1 296 0.00 MB/sec execute 8 sec latency 18565.154 ms 1 296 0.00 MB/sec execute 9 sec latency 19565.625 ms Start mds1: mount -t lustre -o localrecov lustre-mdt1/mdt1 /mnt/lustre-mds1 1 296 0.00 MB/sec execute 10 sec latency 20566.071 ms 1 296 0.00 MB/sec execute 11 sec latency 21567.233 ms 1 296 0.00 MB/sec execute 12 sec latency 22569.465 ms 1 296 0.00 MB/sec execute 13 sec latency 23571.492 ms 1 296 0.00 MB/sec execute 14 sec latency 24571.721 ms 1 296 0.00 MB/sec execute 15 sec latency 25571.982 ms 1 296 0.00 MB/sec execute 16 sec latency 26575.469 ms 1 296 0.00 MB/sec execute 17 sec latency 27575.887 ms 1 296 0.00 MB/sec execute 18 sec latency 28576.404 ms 1 296 0.00 MB/sec execute 19 sec latency 29576.649 ms 1 296 0.00 MB/sec execute 20 sec latency 30576.984 ms 1 296 0.00 MB/sec execute 21 sec latency 31580.353 ms 1 296 0.00 MB/sec execute 22 sec latency 32580.555 ms 1 296 0.00 MB/sec execute 23 sec latency 33585.114 ms 1 296 0.00 MB/sec execute 24 sec latency 34585.497 ms 1 296 0.00 MB/sec execute 25 sec latency 35586.542 ms 1 296 0.00 MB/sec execute 26 sec latency 36587.487 ms oleg252-server: oleg252-server.virtnet: executing set_default_debug -1 all 1 296 0.00 MB/sec execute 27 sec latency 37588.358 ms 1 296 0.00 MB/sec execute 28 sec latency 38588.639 ms pdsh@oleg252-client: oleg252-server: ssh exited with exit code 1 1 296 0.00 MB/sec execute 29 sec latency 39591.264 ms Started lustre-MDT0000 11:19:01 (1787584741) targets are mounted 11:19:01 (1787584741) facet_failover done 1 296 0.00 MB/sec execute 30 sec latency 40591.469 ms 1 296 0.00 MB/sec execute 31 sec latency 41593.700 ms 1 313 0.02 MB/sec execute 32 sec latency 41715.759 ms 1 336 0.04 MB/sec execute 33 sec latency 212.973 ms 1 365 0.06 MB/sec execute 34 sec latency 154.247 ms 1 401 0.09 MB/sec execute 35 sec latency 150.010 ms 1 437 0.12 MB/sec execute 36 sec latency 142.289 ms 1 458 0.14 MB/sec execute 37 sec latency 247.963 ms oleg252-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 493 0.16 MB/sec execute 38 sec latency 140.936 ms 1 521 0.18 MB/sec execute 39 sec latency 163.608 ms 1 586 0.23 MB/sec execute 40 sec latency 174.496 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 639 0.25 MB/sec execute 41 sec latency 111.305 ms 1 664 0.24 MB/sec execute 42 sec latency 170.782 ms 1 689 0.24 MB/sec execute 43 sec latency 280.444 ms 1 715 0.23 MB/sec execute 44 sec latency 146.010 ms 1 730 0.23 MB/sec execute 45 sec latency 320.777 ms 1 762 0.23 MB/sec execute 46 sec latency 140.543 ms 1 786 0.22 MB/sec execute 47 sec latency 196.087 ms 1 796 0.22 MB/sec execute 48 sec latency 468.718 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 2210560 2304 2206208 1% /mnt/lustre[MDT:0] lustre-OST0000_UUID 3771392 37888 3650560 2% /mnt/lustre[OST:0] lustre-OST0001_UUID 3771392 10240 3722240 1% /mnt/lustre[OST:1] filesystem_summary: 7542784 48128 7372800 1% /mnt/lustre 1 806 0.21 MB/sec execute 49 sec latency 232.220 ms 1 848 0.21 MB/sec execute 50 sec latency 158.974 ms 1 873 0.21 MB/sec execute 51 sec latency 208.015 ms 1 888 0.21 MB/sec execute 52 sec latency 316.725 ms 1 913 0.20 MB/sec execute 53 sec latency 230.517 ms 1 940 0.20 MB/sec execute 54 sec latency 315.771 ms test_26 fail mds1 2 times 1 972 0.20 MB/sec execute 55 sec latency 116.325 ms 1 990 0.20 MB/sec execute 56 sec latency 230.205 ms 1 1050 0.21 MB/sec execute 57 sec latency 147.782 ms Failing mds1 on oleg252-server 1 1086 0.21 MB/sec execute 58 sec latency 113.375 ms Stopping /mnt/lustre-mds1 (opts:) on oleg252-server 1 1134 0.20 MB/sec execute 59 sec latency 99.610 ms 1 1136 0.20 MB/sec execute 60 sec latency 975.653 ms 1 1136 0.20 MB/sec execute 61 sec latency 1977.278 ms 1 1136 0.19 MB/sec execute 62 sec latency 2977.601 ms 11:19:33 (1787584773) shut down facet: mds1 facet_host: oleg252-server facet_failover_host: oleg252-server 1 1136 0.19 MB/sec execute 63 sec latency 3979.077 ms 1 1136 0.19 MB/sec execute 64 sec latency 4981.991 ms 1 1136 0.18 MB/sec execute 65 sec latency 5982.355 ms 1 1136 0.18 MB/sec execute 66 sec latency 6982.634 ms 1 1136 0.18 MB/sec execute 67 sec latency 7983.971 ms 1 1136 0.18 MB/sec execute 68 sec latency 8985.056 ms 1 1136 0.17 MB/sec execute 69 sec latency 9990.234 ms 1 1136 0.17 MB/sec execute 70 sec latency 10992.894 ms 1 1136 0.17 MB/sec execute 71 sec latency 11993.176 ms 1 1136 0.17 MB/sec execute 72 sec latency 12993.479 ms Failover mds1 to oleg252-server mount facets: mds1 1 1136 0.16 MB/sec execute 73 sec latency 13994.862 ms 1 1136 0.16 MB/sec execute 74 sec latency 14997.087 ms 1 1136 0.16 MB/sec execute 75 sec latency 15998.900 ms 1 1136 0.16 MB/sec execute 76 sec latency 17012.331 ms 1 1136 0.16 MB/sec execute 77 sec latency 18016.703 ms Start mds1: mount -t lustre -o localrecov lustre-mdt1/mdt1 /mnt/lustre-mds1 1 1136 0.15 MB/sec execute 78 sec latency 19016.903 ms 1 1136 0.15 MB/sec execute 79 sec latency 20017.508 ms 1 1136 0.15 MB/sec execute 80 sec latency 21017.783 ms 1 1136 0.15 MB/sec execute 81 sec latency 22018.734 ms 1 1136 0.15 MB/sec execute 82 sec latency 23019.309 ms 1 1136 0.14 MB/sec execute 83 sec latency 24019.725 ms 1 1136 0.14 MB/sec execute 84 sec latency 25020.009 ms 1 1136 0.14 MB/sec execute 85 sec latency 26020.281 ms 1 1136 0.14 MB/sec execute 86 sec latency 27020.544 ms 1 1136 0.14 MB/sec execute 87 sec latency 28020.868 ms 1 1136 0.14 MB/sec execute 88 sec latency 29024.081 ms 1 1136 0.13 MB/sec execute 89 sec latency 30024.980 ms 1 1136 0.13 MB/sec execute 90 sec latency 31025.315 ms 1 1136 0.13 MB/sec execute 91 sec latency 32027.149 ms 1 1136 0.13 MB/sec execute 92 sec latency 33027.395 ms 1 1136 0.13 MB/sec execute 93 sec latency 34030.571 ms oleg252-server: oleg252-server.virtnet: executing set_default_debug -1 all 1 1136 0.13 MB/sec execute 94 sec latency 35032.429 ms 1 1136 0.13 MB/sec execute 95 sec latency 36032.677 ms pdsh@oleg252-client: oleg252-server: ssh exited with exit code 1 1 1136 0.13 MB/sec execute 96 sec latency 37032.956 ms Started lustre-MDT0000 11:20:08 (1787584808) targets are mounted 11:20:08 (1787584808) facet_failover done 1 1136 0.12 MB/sec execute 97 sec latency 38035.541 ms 1 1136 0.12 MB/sec execute 98 sec latency 39038.115 ms 1 1136 0.12 MB/sec execute 99 sec latency 40038.578 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 0 cleanup 106 sec 0 cleanup 106 sec Operation Count AvgLat MaxLat ---------------------------------------- NTCreateX 119 458.137 42470.787 Close 111 391.355 41715.736 Rename 6 106.974 196.063 Unlink 12 33.171 46.318 Qpathinfo 57 25.634 90.373 Qfileinfo 54 2.134 12.956 Qfsinfo 26 3.696 21.380 Sfileinfo 22 80.138 131.797 Find 32 10.027 65.919 WriteX 265 16.254 96.862 ReadX 113 5.056 85.876 Flush 24 186.639 468.701 Throughput 0.121252 MB/sec 1 clients 1 procs max_latency=41715.759 ms stopping dbench on /mnt/lustre at Mon Aug 24 11:20:17 EDT 2026 with return code 0 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished oleg252-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 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 Mon Aug 24 11:20:26 EDT 2026 waiting for dbench pid 47293 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 26 0.79 MB/sec warmup 1 sec latency 26.604 ms 1 71 1.57 MB/sec warmup 2 sec latency 130.505 ms 1 111 1.75 MB/sec warmup 3 sec latency 199.739 ms 1 136 1.50 MB/sec warmup 4 sec latency 283.030 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 2210560 2560 2205952 1% /mnt/lustre[MDT:0] lustre-OST0000_UUID 3771392 17408 3734528 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3771392 26624 3727360 1% /mnt/lustre[OST:1] filesystem_summary: 7542784 44032 7461888 1% /mnt/lustre 1 155 1.31 MB/sec warmup 5 sec latency 242.931 ms 1 179 1.21 MB/sec warmup 6 sec latency 213.602 ms 1 197 1.12 MB/sec warmup 7 sec latency 294.346 ms 1 224 1.08 MB/sec warmup 8 sec latency 185.585 ms 1 256 1.07 MB/sec warmup 9 sec latency 124.957 ms 1 290 1.07 MB/sec warmup 10 sec latency 121.644 ms 1 323 1.07 MB/sec warmup 11 sec latency 143.707 ms test_26 fail mds1 3 times 1 350 1.04 MB/sec warmup 12 sec latency 155.553 ms 1 381 1.04 MB/sec warmup 13 sec latency 181.066 ms Failing mds1 on oleg252-server 1 408 1.02 MB/sec warmup 14 sec latency 201.438 ms Stopping /mnt/lustre-mds1 (opts:) on oleg252-server 1 445 1.04 MB/sec warmup 15 sec latency 127.301 ms 1 476 1.04 MB/sec warmup 16 sec latency 138.290 ms 1 476 0.98 MB/sec warmup 17 sec latency 1124.895 ms 1 476 0.93 MB/sec warmup 18 sec latency 2125.217 ms 11:20:45 (1787584845) shut down 1 476 0.88 MB/sec warmup 19 sec latency 3125.389 ms facet: mds1 facet_host: oleg252-server facet_failover_host: oleg252-server 1 476 0.00 MB/sec execute 1 sec latency 5126.196 ms 1 476 0.00 MB/sec execute 2 sec latency 6126.394 ms 1 476 0.00 MB/sec execute 3 sec latency 7126.553 ms 1 476 0.00 MB/sec execute 4 sec latency 8126.812 ms 1 476 0.00 MB/sec execute 5 sec latency 9129.482 ms 1 476 0.00 MB/sec execute 6 sec latency 10129.747 ms 1 476 0.00 MB/sec execute 7 sec latency 11130.296 ms 1 476 0.00 MB/sec execute 8 sec latency 12134.172 ms 1 476 0.00 MB/sec execute 9 sec latency 13136.670 ms Failover mds1 to oleg252-server mount facets: mds1 1 476 0.00 MB/sec execute 10 sec latency 14137.661 ms 1 476 0.00 MB/sec execute 11 sec latency 15137.999 ms 1 476 0.00 MB/sec execute 12 sec latency 16138.461 ms 1 476 0.00 MB/sec execute 13 sec latency 17139.251 ms 1 476 0.00 MB/sec execute 14 sec latency 18139.482 ms 1 476 0.00 MB/sec execute 15 sec latency 19139.822 ms Start mds1: mount -t lustre -o localrecov lustre-mdt1/mdt1 /mnt/lustre-mds1 1 476 0.00 MB/sec execute 16 sec latency 20140.419 ms 1 476 0.00 MB/sec execute 17 sec latency 21140.875 ms 1 476 0.00 MB/sec execute 18 sec latency 22141.709 ms 1 476 0.00 MB/sec execute 19 sec latency 23142.855 ms 1 476 0.00 MB/sec execute 20 sec latency 24143.164 ms 1 476 0.00 MB/sec execute 21 sec latency 25143.450 ms 1 476 0.00 MB/sec execute 22 sec latency 26147.059 ms 1 476 0.00 MB/sec execute 23 sec latency 27149.648 ms 1 476 0.00 MB/sec execute 24 sec latency 28149.920 ms 1 476 0.00 MB/sec execute 25 sec latency 29150.478 ms 1 476 0.00 MB/sec execute 26 sec latency 30150.881 ms 1 476 0.00 MB/sec execute 27 sec latency 31161.234 ms 1 476 0.00 MB/sec execute 28 sec latency 32161.985 ms 1 476 0.00 MB/sec execute 29 sec latency 33162.306 ms 1 476 0.00 MB/sec execute 30 sec latency 34175.609 ms 1 476 0.00 MB/sec execute 31 sec latency 35176.472 ms oleg252-server: oleg252-server.virtnet: executing set_default_debug -1 all 1 476 0.00 MB/sec execute 32 sec latency 36176.743 ms pdsh@oleg252-client: oleg252-server: ssh exited with exit code 1 1 476 0.00 MB/sec execute 33 sec latency 37177.187 ms Started lustre-MDT0000 11:21:19 (1787584879) targets are mounted 11:21:20 (1787584880) facet_failover done 1 476 0.00 MB/sec execute 34 sec latency 38190.801 ms 1 476 0.00 MB/sec execute 35 sec latency 39192.829 ms 1 476 0.00 MB/sec execute 36 sec latency 40195.654 ms 1 477 0.00 MB/sec execute 37 sec latency 40998.316 ms 1 503 0.02 MB/sec execute 38 sec latency 381.369 ms 1 535 0.05 MB/sec execute 39 sec latency 174.837 ms 1 606 0.11 MB/sec execute 40 sec latency 217.032 ms 1 644 0.11 MB/sec execute 41 sec latency 191.208 ms 1 666 0.11 MB/sec execute 42 sec latency 500.199 ms 1 678 0.10 MB/sec execute 43 sec latency 167.719 ms oleg252-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 708 0.10 MB/sec execute 44 sec latency 160.362 ms 1 721 0.10 MB/sec execute 45 sec latency 230.347 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 733 0.10 MB/sec execute 46 sec latency 401.317 ms 1 767 0.10 MB/sec execute 47 sec latency 180.795 ms 1 789 0.10 MB/sec execute 48 sec latency 146.103 ms 1 799 0.10 MB/sec execute 49 sec latency 345.532 ms 1 825 0.10 MB/sec execute 50 sec latency 165.688 ms 1 870 0.10 MB/sec execute 51 sec latency 147.971 ms 1 885 0.10 MB/sec execute 52 sec latency 278.260 ms 1 905 0.09 MB/sec execute 53 sec latency 227.663 ms 1 918 0.09 MB/sec execute 54 sec latency 461.232 ms 1 949 0.09 MB/sec execute 55 sec latency 221.454 ms 1 969 0.09 MB/sec execute 56 sec latency 235.283 ms 1 985 0.09 MB/sec execute 57 sec latency 201.871 ms tar: Unexpected EOF in archive tar: Unexpected EOF in archive 1 1082 0.11 MB/sec execute 58 sec latency 67.597 ms 1 1124 0.11 MB/sec execute 59 sec latency 118.392 ms 1 1142 0.10 MB/sec execute 60 sec latency 181.994 ms 1 1180 0.10 MB/sec execute 61 sec latency 209.148 ms 1 1211 0.10 MB/sec execute 62 sec latency 127.509 ms 1 1233 0.10 MB/sec execute 63 sec latency 138.281 ms 1 1267 0.10 MB/sec execute 64 sec latency 214.728 ms 1 1394 0.14 MB/sec execute 65 sec latency 96.328 ms 1 1442 0.14 MB/sec execute 66 sec latency 86.267 ms 1 1481 0.14 MB/sec execute 67 sec latency 186.853 ms 1 1505 0.14 MB/sec execute 68 sec latency 413.477 ms tar: Error is not recoverable: exiting now dbench killed by signal 15 stopping dbench on /mnt/lustre at Mon Aug 24 11:21:54 EDT 2026 with return code 0 1 1553 0.14 MB/sec execute 69 sec latency 148.987 ms 47293 pts/0 S+ 0:00 dbench -c client.txt 1 -D /mnt/lustre2/d26.replay-dual/run_dbench -t 100 killed dbench main pid 47293 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished