== replay-dual test 26: dbench and tar with mds failover ========================================================== 14:33:04 (1787077984) Starting client oleg256-client.virtnet: -o user_xattr,flock 192.168.202.156@tcp:/lustre /mnt/lustre Started clients oleg256-client.virtnet: 192.168.202.156@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 45221 Started dbench loop with 45222 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 22528 3728384 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3771392 2048 3755008 1% /mnt/lustre[OST:1] filesystem_summary: 7542784 24576 7483392 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 Tue Aug 18 14:33:09 EDT 2026 waiting for dbench pid 45290 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 1 of 1 processes prepared for launch 0 sec releasing clients 1 34 1.04 MB/sec warmup 1 sec latency 130.673 ms 1 111 2.61 MB/sec warmup 2 sec latency 107.218 ms 1 155 2.18 MB/sec warmup 3 sec latency 158.479 ms 1 197 1.96 MB/sec warmup 4 sec latency 147.624 ms test_26 fail mds1 1 times 1 256 1.93 MB/sec warmup 5 sec latency 115.968 ms 1 296 1.82 MB/sec warmup 6 sec latency 112.092 ms Failing mds1 on oleg256-server 1 331 1.71 MB/sec warmup 7 sec latency 199.758 ms Stopping /mnt/lustre-mds1 (opts:) on oleg256-server 1 365 1.63 MB/sec warmup 8 sec latency 140.593 ms 1 372 1.48 MB/sec warmup 9 sec latency 910.060 ms 14:33:19 (1787077999) shut down 1 372 1.33 MB/sec warmup 10 sec latency 1910.634 ms facet: mds1 facet_host: oleg256-server facet_failover_host: oleg256-server 1 372 1.21 MB/sec warmup 11 sec latency 2911.495 ms 1 372 1.11 MB/sec warmup 12 sec latency 3911.701 ms 1 372 1.02 MB/sec warmup 13 sec latency 4912.995 ms 1 372 0.95 MB/sec warmup 14 sec latency 5913.657 ms 1 372 0.89 MB/sec warmup 15 sec latency 6913.848 ms 1 372 0.83 MB/sec warmup 16 sec latency 7914.129 ms 1 372 0.78 MB/sec warmup 17 sec latency 8914.467 ms 1 372 0.74 MB/sec warmup 18 sec latency 9914.842 ms 1 372 0.70 MB/sec warmup 19 sec latency 10915.130 ms Failover mds1 to oleg256-server mount facets: mds1 1 372 0.00 MB/sec execute 1 sec latency 12916.212 ms 1 372 0.00 MB/sec execute 2 sec latency 13916.396 ms 1 372 0.00 MB/sec execute 3 sec latency 14917.813 ms Start mds1: mount -t lustre -o localrecov lustre-mdt1/mdt1 /mnt/lustre-mds1 1 372 0.00 MB/sec execute 4 sec latency 15918.182 ms 1 372 0.00 MB/sec execute 5 sec latency 16918.774 ms 1 372 0.00 MB/sec execute 6 sec latency 17919.057 ms 1 372 0.00 MB/sec execute 7 sec latency 18919.408 ms 1 372 0.00 MB/sec execute 8 sec latency 19920.259 ms 1 372 0.00 MB/sec execute 9 sec latency 20920.502 ms oleg256-server: oleg256-server.virtnet: executing set_default_debug -1 all 1 372 0.00 MB/sec execute 10 sec latency 21920.697 ms pdsh@oleg256-client: oleg256-server: ssh exited with exit code 1 1 402 0.08 MB/sec execute 11 sec latency 21986.868 ms Started lustre-MDT0000 14:33:40 (1787078020) targets are mounted 14:33:40 (1787078020) facet_failover done 1 461 0.24 MB/sec execute 12 sec latency 104.127 ms 1 511 0.34 MB/sec execute 13 sec latency 104.058 ms 1 608 0.55 MB/sec execute 14 sec latency 102.522 ms 1 664 0.52 MB/sec execute 15 sec latency 195.630 ms 1 710 0.49 MB/sec execute 16 sec latency 203.289 ms oleg256-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 738 0.47 MB/sec execute 17 sec latency 188.730 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 782 0.45 MB/sec execute 18 sec latency 98.024 ms 1 808 0.43 MB/sec execute 19 sec latency 195.918 ms 1 874 0.42 MB/sec execute 20 sec latency 127.152 ms 1 903 0.40 MB/sec execute 21 sec latency 157.426 ms 1 952 0.39 MB/sec execute 22 sec latency 102.290 ms 1 983 0.37 MB/sec execute 23 sec latency 256.037 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 3692544 2% /mnt/lustre[OST:0] lustre-OST0001_UUID 3771392 15360 3685376 1% /mnt/lustre[OST:1] filesystem_summary: 7542784 53248 7377920 1% /mnt/lustre 1 1050 0.40 MB/sec execute 24 sec latency 106.594 ms 1 1118 0.39 MB/sec execute 25 sec latency 112.944 ms 1 1177 0.37 MB/sec execute 26 sec latency 85.729 ms 1 1231 0.36 MB/sec execute 27 sec latency 90.497 ms 1 1378 0.45 MB/sec execute 28 sec latency 68.367 ms test_26 fail mds1 2 times 1 1419 0.44 MB/sec execute 29 sec latency 128.086 ms 1 1474 0.42 MB/sec execute 30 sec latency 102.451 ms Failing mds1 on oleg256-server 1 1515 0.41 MB/sec execute 31 sec latency 299.675 ms Stopping /mnt/lustre-mds1 (opts:) on oleg256-server 1 1584 0.40 MB/sec execute 32 sec latency 259.042 ms 1 1584 0.39 MB/sec execute 33 sec latency 1263.476 ms 14:34:03 (1787078043) shut down facet: mds1 facet_host: oleg256-server facet_failover_host: oleg256-server 1 1584 0.38 MB/sec execute 34 sec latency 2263.592 ms 1 1584 0.37 MB/sec execute 35 sec latency 3264.144 ms 1 1584 0.36 MB/sec execute 36 sec latency 4264.418 ms 1 1584 0.35 MB/sec execute 37 sec latency 5264.605 ms 1 1584 0.34 MB/sec execute 38 sec latency 6264.864 ms 1 1584 0.33 MB/sec execute 39 sec latency 7268.862 ms 1 1584 0.32 MB/sec execute 40 sec latency 8269.083 ms 1 1584 0.31 MB/sec execute 41 sec latency 9271.571 ms 1 1584 0.31 MB/sec execute 42 sec latency 10275.810 ms 1 1584 0.30 MB/sec execute 43 sec latency 11276.047 ms 1 1584 0.29 MB/sec execute 44 sec latency 12278.912 ms Failover mds1 to oleg256-server mount facets: mds1 1 1584 0.29 MB/sec execute 45 sec latency 13279.529 ms 1 1584 0.28 MB/sec execute 46 sec latency 14280.623 ms 1 1584 0.27 MB/sec execute 47 sec latency 15280.847 ms 1 1584 0.27 MB/sec execute 48 sec latency 16281.088 ms Start mds1: mount -t lustre -o localrecov lustre-mdt1/mdt1 /mnt/lustre-mds1 1 1584 0.26 MB/sec execute 49 sec latency 17281.301 ms 1 1584 0.26 MB/sec execute 50 sec latency 18281.527 ms 1 1584 0.25 MB/sec execute 51 sec latency 19281.703 ms 1 1584 0.25 MB/sec execute 52 sec latency 20281.938 ms 1 1584 0.24 MB/sec execute 53 sec latency 21282.529 ms oleg256-server: oleg256-server.virtnet: executing set_default_debug -1 all 1 1584 0.24 MB/sec execute 54 sec latency 22282.760 ms pdsh@oleg256-client: oleg256-server: ssh exited with exit code 1 1 1584 0.23 MB/sec execute 55 sec latency 23283.906 ms Started lustre-MDT0000 14:34:24 (1787078064) targets are mounted 14:34:24 (1787078064) facet_failover done 1 1584 0.23 MB/sec execute 56 sec latency 24284.128 ms 1 1584 0.23 MB/sec execute 57 sec latency 25284.907 ms 1 1584 0.22 MB/sec execute 58 sec latency 26285.225 ms 1 1584 0.22 MB/sec execute 59 sec latency 27285.409 ms 1 1584 0.21 MB/sec execute 60 sec latency 28286.116 ms 1 1584 0.21 MB/sec execute 61 sec latency 29286.416 ms 1 1584 0.21 MB/sec execute 62 sec latency 30290.020 ms 1 1584 0.20 MB/sec execute 63 sec latency 31290.232 ms 1 1584 0.20 MB/sec execute 64 sec latency 32290.754 ms 1 1584 0.20 MB/sec execute 65 sec latency 33290.955 ms 1 1584 0.19 MB/sec execute 66 sec latency 34291.362 ms 1 1584 0.19 MB/sec execute 67 sec latency 35291.945 ms 1 1584 0.19 MB/sec execute 68 sec latency 36293.138 ms 1 1584 0.19 MB/sec execute 69 sec latency 37293.283 ms 1 1584 0.18 MB/sec execute 70 sec latency 38293.552 ms 1 1612 0.18 MB/sec execute 71 sec latency 38835.441 ms 1 1660 0.18 MB/sec execute 72 sec latency 184.517 ms 1 1719 0.18 MB/sec execute 73 sec latency 66.612 ms 1 1789 0.18 MB/sec execute 74 sec latency 73.383 ms oleg256-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 1848 0.17 MB/sec execute 75 sec latency 81.762 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 1896 0.17 MB/sec execute 76 sec latency 145.556 ms 1 1974 0.17 MB/sec execute 77 sec latency 73.896 ms 1 2041 0.17 MB/sec execute 78 sec latency 75.766 ms 1 2108 0.17 MB/sec execute 79 sec latency 97.386 ms 1 2166 0.17 MB/sec execute 80 sec latency 59.143 ms 1 2286 0.18 MB/sec execute 81 sec latency 60.961 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 2210560 2688 2205824 1% /mnt/lustre[MDT:0] lustre-OST0000_UUID 3771392 50176 3712000 2% /mnt/lustre[OST:0] lustre-OST0001_UUID 3771392 23552 3730432 1% /mnt/lustre[OST:1] filesystem_summary: 7542784 73728 7442432 1% /mnt/lustre 1 2345 0.18 MB/sec execute 82 sec latency 191.273 ms 1 2380 0.18 MB/sec execute 83 sec latency 288.160 ms 1 2426 0.18 MB/sec execute 84 sec latency 104.218 ms 1 2477 0.18 MB/sec execute 85 sec latency 96.188 ms 1 2563 0.18 MB/sec execute 86 sec latency 129.085 ms test_26 fail mds1 3 times 1 2566 0.18 MB/sec execute 87 sec latency 991.026 ms 1 2595 0.18 MB/sec execute 88 sec latency 1275.246 ms Failing mds1 on oleg256-server 1 2756 0.21 MB/sec execute 89 sec latency 83.352 ms Stopping /mnt/lustre-mds1 (opts:) on oleg256-server 1 2880 0.21 MB/sec execute 90 sec latency 216.622 ms 1 2880 0.21 MB/sec execute 91 sec latency 1045.079 ms 1 2880 0.21 MB/sec execute 92 sec latency 2045.582 ms 14:35:02 (1787078102) shut down facet: mds1 facet_host: oleg256-server facet_failover_host: oleg256-server 1 2880 0.20 MB/sec execute 93 sec latency 3045.781 ms 1 2880 0.20 MB/sec execute 94 sec latency 4047.466 ms 1 2880 0.20 MB/sec execute 95 sec latency 5047.644 ms 1 2880 0.20 MB/sec execute 96 sec latency 6048.129 ms 1 2880 0.19 MB/sec execute 97 sec latency 7049.466 ms 1 2880 0.19 MB/sec execute 98 sec latency 8049.624 ms 1 2880 0.19 MB/sec execute 99 sec latency 9051.767 ms 1 cleanup 100 sec 1 cleanup 101 sec 1 cleanup 102 sec Failover mds1 to oleg256-server mount facets: mds1 1 cleanup 103 sec 1 cleanup 104 sec 1 cleanup 105 sec 1 cleanup 106 sec Start mds1: mount -t lustre -o localrecov lustre-mdt1/mdt1 /mnt/lustre-mds1 1 cleanup 107 sec 1 cleanup 108 sec 1 cleanup 109 sec 1 cleanup 110 sec 1 cleanup 111 sec 1 cleanup 112 sec 1 cleanup 113 sec 1 cleanup 114 sec 1 cleanup 115 sec 1 cleanup 116 sec 1 cleanup 117 sec 1 cleanup 118 sec 1 cleanup 119 sec 1 cleanup 120 sec 1 cleanup 121 sec oleg256-server: oleg256-server.virtnet: executing set_default_debug -1 all 1 cleanup 122 sec pdsh@oleg256-client: oleg256-server: ssh exited with exit code 1 1 cleanup 123 sec Started lustre-MDT0000 14:35:32 (1787078132) targets are mounted 14:35:32 (1787078132) facet_failover done 1 cleanup 124 sec 1 cleanup 125 sec 1 cleanup 126 sec 1 cleanup 127 sec 1 cleanup 128 sec 1 cleanup 129 sec 1 cleanup 130 sec 1 cleanup 131 sec 1 cleanup 132 sec 1 cleanup 133 sec 1 cleanup 134 sec 0 cleanup 134 sec Operation Count AvgLat MaxLat ---------------------------------------- NTCreateX 396 150.170 41513.472 Close 339 74.484 21986.844 Rename 18 71.897 157.404 Unlink 42 22.112 40.188 Qpathinfo 364 119.961 38835.411 Qfileinfo 108 1.779 9.004 Qfsinfo 54 3.031 26.907 Sfileinfo 50 45.309 89.877 Find 128 4.162 30.222 WriteX 357 9.592 65.703 ReadX 614 1.416 78.464 LockX 2 9.904 11.198 UnlockX 2 11.432 13.847 Flush 35 119.109 299.653 Throughput 0.190579 MB/sec 1 clients 1 procs max_latency=38835.441 ms stopping dbench on /mnt/lustre at Tue Aug 18 14:35:44 EDT 2026 with return code 0 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre oleg256-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 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 Tue Aug 18 14:35:49 EDT 2026 waiting for dbench pid 48219 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 72 3.14 MB/sec warmup 1 sec latency 67.584 ms 1 154 3.27 MB/sec warmup 2 sec latency 77.326 ms 1 189 2.53 MB/sec warmup 3 sec latency 108.719 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 2210560 3200 2205312 1% /mnt/lustre[MDT:0] lustre-OST0000_UUID 3771392 41984 3678208 2% /mnt/lustre[OST:0] lustre-OST0001_UUID 3771392 38912 3683328 2% /mnt/lustre[OST:1] filesystem_summary: 7542784 80896 7361536 2% /mnt/lustre 1 235 2.24 MB/sec warmup 4 sec latency 144.607 ms 1 287 2.13 MB/sec warmup 5 sec latency 112.636 ms 1 339 2.04 MB/sec warmup 6 sec latency 104.745 ms 1 374 1.90 MB/sec warmup 7 sec latency 130.761 ms 1 421 1.85 MB/sec warmup 8 sec latency 95.789 ms test_26 fail mds1 4 times 1 469 1.82 MB/sec warmup 9 sec latency 127.703 ms 1 507 1.75 MB/sec warmup 10 sec latency 133.425 ms Failing mds1 on oleg256-server 1 589 1.84 MB/sec warmup 11 sec latency 161.455 ms Stopping /mnt/lustre-mds1 (opts:) on oleg256-server 1 652 1.75 MB/sec warmup 12 sec latency 183.169 ms 1 652 1.62 MB/sec warmup 13 sec latency 1183.838 ms 14:36:03 (1787078163) shut down 1 652 1.50 MB/sec warmup 14 sec latency 2184.073 ms facet: mds1 facet_host: oleg256-server facet_failover_host: oleg256-server 1 652 1.40 MB/sec warmup 15 sec latency 3184.346 ms 1 652 1.31 MB/sec warmup 16 sec latency 4184.529 ms 1 652 1.24 MB/sec warmup 17 sec latency 5184.720 ms 1 652 1.17 MB/sec warmup 18 sec latency 6185.559 ms 1 652 1.11 MB/sec warmup 19 sec latency 7185.735 ms 1 652 0.00 MB/sec execute 1 sec latency 9186.035 ms 1 652 0.00 MB/sec execute 2 sec latency 10186.849 ms 1 652 0.00 MB/sec execute 3 sec latency 11188.659 ms 1 652 0.00 MB/sec execute 4 sec latency 12189.024 ms Failover mds1 to oleg256-server mount facets: mds1 1 652 0.00 MB/sec execute 5 sec latency 13189.471 ms 1 652 0.00 MB/sec execute 6 sec latency 14189.734 ms 1 652 0.00 MB/sec execute 7 sec latency 15190.213 ms 1 652 0.00 MB/sec execute 8 sec latency 16190.483 ms Start mds1: mount -t lustre -o localrecov lustre-mdt1/mdt1 /mnt/lustre-mds1 1 652 0.00 MB/sec execute 9 sec latency 17190.674 ms 1 652 0.00 MB/sec execute 10 sec latency 18191.346 ms 1 652 0.00 MB/sec execute 11 sec latency 19191.613 ms 1 652 0.00 MB/sec execute 12 sec latency 20191.844 ms 1 652 0.00 MB/sec execute 13 sec latency 21197.647 ms 1 652 0.00 MB/sec execute 14 sec latency 22197.789 ms 1 652 0.00 MB/sec execute 15 sec latency 23197.974 ms 1 652 0.00 MB/sec execute 16 sec latency 24198.175 ms 1 652 0.00 MB/sec execute 17 sec latency 25199.252 ms 1 652 0.00 MB/sec execute 18 sec latency 26199.457 ms 1 652 0.00 MB/sec execute 19 sec latency 27199.735 ms 1 652 0.00 MB/sec execute 20 sec latency 28200.972 ms 1 652 0.00 MB/sec execute 21 sec latency 29201.787 ms 1 652 0.00 MB/sec execute 22 sec latency 30202.059 ms oleg256-server: oleg256-server.virtnet: executing set_default_debug -1 all 1 652 0.00 MB/sec execute 23 sec latency 31202.262 ms pdsh@oleg256-client: oleg256-server: ssh exited with exit code 1 Started lustre-MDT0000 14:36:33 (1787078193) targets are mounted 1 652 0.00 MB/sec execute 24 sec latency 32215.078 ms 14:36:33 (1787078193) facet_failover done 1 652 0.00 MB/sec execute 25 sec latency 33216.469 ms 1 652 0.00 MB/sec execute 26 sec latency 34216.675 ms 1 652 0.00 MB/sec execute 27 sec latency 35217.548 ms 1 652 0.00 MB/sec execute 28 sec latency 36218.048 ms 1 652 0.00 MB/sec execute 29 sec latency 37218.466 ms 1 652 0.00 MB/sec execute 30 sec latency 38218.727 ms 1 652 0.00 MB/sec execute 31 sec latency 39219.488 ms 1 666 0.00 MB/sec execute 32 sec latency 39639.586 ms 1 708 0.00 MB/sec execute 33 sec latency 93.226 ms 1 740 0.01 MB/sec execute 34 sec latency 224.092 ms oleg256-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 791 0.01 MB/sec execute 35 sec latency 163.224 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 818 0.01 MB/sec execute 36 sec latency 119.266 ms 1 873 0.02 MB/sec execute 37 sec latency 215.779 ms 1 913 0.02 MB/sec execute 38 sec latency 310.603 ms 1 964 0.02 MB/sec execute 39 sec latency 123.539 ms 1 1000 0.02 MB/sec execute 40 sec latency 139.276 ms 1 1064 0.04 MB/sec execute 41 sec latency 139.952 ms 1 1139 0.05 MB/sec execute 42 sec latency 89.134 ms 1 1198 0.05 MB/sec execute 43 sec latency 116.361 ms 1 1252 0.05 MB/sec execute 44 sec latency 88.537 ms 1 1394 0.11 MB/sec execute 45 sec latency 74.688 ms 1 1465 0.11 MB/sec execute 46 sec latency 59.629 ms 1 1523 0.11 MB/sec execute 47 sec latency 284.377 ms 1 1603 0.11 MB/sec execute 48 sec latency 64.636 ms 1 1653 0.10 MB/sec execute 49 sec latency 230.318 ms dbench killed by signal 15 stopping dbench on /mnt/lustre at Tue Aug 18 14:36:59 EDT 2026 with return code 0 48219 pts/0 S+ 0:00 dbench -c client.txt 1 -D /mnt/lustre2/d26.replay-dual/run_dbench -t 100 killed dbench main pid 48219 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished