== replay-dual test 26: dbench and tar with mds failover ========================================================== 23:15:58 (1787368558) Starting client oleg355-client.virtnet: -o user_xattr,flock 192.168.203.155@tcp:/lustre /mnt/lustre Started clients oleg355-client.virtnet: 192.168.203.155@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 65708 Started dbench loop with 65710 striped dir -i0 -c2 -H crush /mnt/lustre2/d26.replay-dual/run_dbench striped dir -i0 -c2 -H crush2 /mnt/lustre/d26.replay-dual/run_tar looking for dbench program /usr/bin/dbench found dbench client file /usr/share/dbench/client.txt '/usr/share/dbench/client.txt' -> '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 1752 1269552 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 1564 3580652 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 1544 3605476 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 3108 7186128 1% /mnt/lustre running 'dbench 1 -D /mnt/lustre2/d26.replay-dual/run_dbench -t 100' on /mnt/lustre at Fri Aug 21 23:16:02 EDT 2026 waiting for dbench pid 65762 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 22 0.52 MB/sec warmup 1 sec latency 13.118 ms 1 92 2.10 MB/sec warmup 2 sec latency 112.820 ms 1 130 1.92 MB/sec warmup 3 sec latency 177.796 ms 1 165 1.70 MB/sec warmup 4 sec latency 147.989 ms 1 187 1.50 MB/sec warmup 5 sec latency 447.214 ms 1 223 1.44 MB/sec warmup 6 sec latency 134.279 ms 1 271 1.45 MB/sec warmup 7 sec latency 93.906 ms 1 315 1.43 MB/sec warmup 8 sec latency 129.239 ms test_26 fail mds1 1 times 1 349 1.39 MB/sec warmup 9 sec latency 170.615 ms 1 389 1.38 MB/sec warmup 10 sec latency 138.618 ms Failing mds1 on oleg355-server 1 429 1.37 MB/sec warmup 11 sec latency 112.568 ms Stopping /mnt/lustre-mds1 (opts:) on oleg355-server 1 467 1.36 MB/sec warmup 12 sec latency 172.120 ms 1 492 1.32 MB/sec warmup 13 sec latency 376.036 ms 1 492 1.23 MB/sec warmup 14 sec latency 1376.739 ms 23:16:18 (1787368578) shut down 1 492 1.15 MB/sec warmup 15 sec latency 2377.291 ms facet: mds1 facet_host: oleg355-server facet_failover_host: oleg355-server 1 492 1.07 MB/sec warmup 16 sec latency 3377.485 ms 1 492 1.01 MB/sec warmup 17 sec latency 4378.778 ms 1 492 0.96 MB/sec warmup 18 sec latency 5381.446 ms 1 492 0.90 MB/sec warmup 19 sec latency 6381.748 ms 1 492 0.00 MB/sec execute 1 sec latency 8387.860 ms 1 492 0.00 MB/sec execute 2 sec latency 9390.102 ms 1 492 0.00 MB/sec execute 3 sec latency 10390.735 ms 1 492 0.00 MB/sec execute 4 sec latency 11391.978 ms 1 492 0.00 MB/sec execute 5 sec latency 12392.290 ms Failover mds1 to oleg355-server mount facets: mds1 1 492 0.00 MB/sec execute 6 sec latency 13393.483 ms 1 492 0.00 MB/sec execute 7 sec latency 14393.752 ms 1 492 0.00 MB/sec execute 8 sec latency 15393.979 ms 1 492 0.00 MB/sec execute 9 sec latency 16394.601 ms 1 492 0.00 MB/sec execute 10 sec latency 17394.999 ms 1 492 0.00 MB/sec execute 11 sec latency 18398.485 ms 1 492 0.00 MB/sec execute 12 sec latency 19398.770 ms 1 492 0.00 MB/sec execute 13 sec latency 20399.038 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 492 0.00 MB/sec execute 14 sec latency 21399.343 ms 1 492 0.00 MB/sec execute 15 sec latency 22399.639 ms 1 492 0.00 MB/sec execute 16 sec latency 23401.949 ms 1 492 0.00 MB/sec execute 17 sec latency 24402.275 ms 1 492 0.00 MB/sec execute 18 sec latency 25402.938 ms 1 492 0.00 MB/sec execute 19 sec latency 26403.760 ms 1 492 0.00 MB/sec execute 20 sec latency 27403.948 ms 1 492 0.00 MB/sec execute 21 sec latency 28404.749 ms 1 492 0.00 MB/sec execute 22 sec latency 29404.949 ms 1 492 0.00 MB/sec execute 23 sec latency 30405.638 ms 1 492 0.00 MB/sec execute 24 sec latency 31405.950 ms 1 492 0.00 MB/sec execute 25 sec latency 32407.620 ms 1 492 0.00 MB/sec execute 26 sec latency 33407.882 ms 1 492 0.00 MB/sec execute 27 sec latency 34408.454 ms oleg355-server: oleg355-server.virtnet: executing set_default_debug -1 all 1 492 0.00 MB/sec execute 28 sec latency 35423.167 ms pdsh@oleg355-client: oleg355-server: ssh exited with exit code 1 1 492 0.00 MB/sec execute 29 sec latency 36423.347 ms Started lustre-MDT0000 23:16:52 (1787368612) targets are mounted 23:16:52 (1787368612) facet_failover done 1 492 0.00 MB/sec execute 30 sec latency 37423.605 ms 1 492 0.00 MB/sec execute 31 sec latency 38431.449 ms 1 493 0.00 MB/sec execute 32 sec latency 39335.163 ms 1 531 0.04 MB/sec execute 33 sec latency 144.834 ms 1 571 0.06 MB/sec execute 34 sec latency 665.076 ms 1 618 0.11 MB/sec execute 35 sec latency 97.879 ms 1 664 0.11 MB/sec execute 36 sec latency 101.945 ms oleg355-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 698 0.11 MB/sec execute 37 sec latency 129.937 ms 1 726 0.11 MB/sec execute 38 sec latency 171.602 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 759 0.11 MB/sec execute 39 sec latency 129.788 ms 1 786 0.11 MB/sec execute 40 sec latency 111.525 ms 1 817 0.10 MB/sec execute 41 sec latency 117.071 ms 1 870 0.11 MB/sec execute 42 sec latency 98.090 ms 1 900 0.10 MB/sec execute 43 sec latency 129.581 ms 1 923 0.10 MB/sec execute 44 sec latency 107.651 ms 1 959 0.10 MB/sec execute 45 sec latency 124.570 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2100 1269204 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 1868 1269436 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 44924 3556180 2% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 10100 3593912 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 55024 7150092 1% /mnt/lustre 1 985 0.10 MB/sec execute 46 sec latency 159.739 ms 1 1041 0.12 MB/sec execute 47 sec latency 120.552 ms 1 1084 0.12 MB/sec execute 48 sec latency 113.035 ms 1 1134 0.12 MB/sec execute 49 sec latency 81.580 ms 1 1172 0.12 MB/sec execute 50 sec latency 181.697 ms 1 1178 0.11 MB/sec execute 51 sec latency 868.849 ms 1 1221 0.11 MB/sec execute 52 sec latency 95.816 ms 1 1245 0.11 MB/sec execute 53 sec latency 175.855 ms 1 1296 0.12 MB/sec execute 54 sec latency 108.867 ms 1 1404 0.16 MB/sec execute 55 sec latency 110.940 ms test_26 fail mds2 2 times 1 1435 0.16 MB/sec execute 56 sec latency 114.011 ms 1 1486 0.15 MB/sec execute 57 sec latency 130.765 ms Failing mds2 on oleg355-server 1 1518 0.15 MB/sec execute 58 sec latency 124.860 ms Stopping /mnt/lustre-mds2 (opts:) on oleg355-server 1 1564 0.15 MB/sec execute 59 sec latency 89.762 ms 1 1583 0.15 MB/sec execute 60 sec latency 105.581 ms 1 1641 0.15 MB/sec execute 61 sec latency 83.808 ms 23:17:24 (1787368644) shut down facet: mds2 facet_host: oleg355-server facet_failover_host: oleg355-server 1 1679 0.15 MB/sec execute 62 sec latency 102.561 ms 1 1746 0.14 MB/sec execute 63 sec latency 112.061 ms 1 1820 0.14 MB/sec execute 64 sec latency 82.911 ms 1 1871 0.14 MB/sec execute 65 sec latency 92.023 ms 1 1944 0.14 MB/sec execute 66 sec latency 79.212 ms 1 2012 0.14 MB/sec execute 67 sec latency 104.464 ms 1 2098 0.14 MB/sec execute 68 sec latency 73.736 ms 1 2154 0.14 MB/sec execute 69 sec latency 83.009 ms 1 2204 0.14 MB/sec execute 70 sec latency 84.186 ms 1 2259 0.13 MB/sec execute 71 sec latency 174.307 ms Failover mds2 to oleg355-server 1 2259 0.13 MB/sec execute 72 sec latency 1183.962 ms mount facets: mds2 1 2259 0.13 MB/sec execute 73 sec latency 2184.192 ms 1 2259 0.13 MB/sec execute 74 sec latency 3184.576 ms 1 2259 0.13 MB/sec execute 75 sec latency 4184.759 ms 1 2259 0.13 MB/sec execute 76 sec latency 5185.042 ms 1 2259 0.12 MB/sec execute 77 sec latency 6185.404 ms 1 2259 0.12 MB/sec execute 78 sec latency 7186.338 ms 1 2259 0.12 MB/sec execute 79 sec latency 8186.931 ms 1 2259 0.12 MB/sec execute 80 sec latency 9190.638 ms 1 2259 0.12 MB/sec execute 81 sec latency 10190.947 ms 1 2259 0.12 MB/sec execute 82 sec latency 11192.101 ms 1 2259 0.12 MB/sec execute 83 sec latency 12196.975 ms Start mds2: mount -t lustre -o localrecov /dev/mapper/mds2_flakey /mnt/lustre-mds2 1 2259 0.11 MB/sec execute 84 sec latency 13197.294 ms 1 2259 0.11 MB/sec execute 85 sec latency 14197.537 ms 1 2259 0.11 MB/sec execute 86 sec latency 15197.772 ms 1 2259 0.11 MB/sec execute 87 sec latency 16198.055 ms 1 2259 0.11 MB/sec execute 88 sec latency 17198.296 ms 1 2259 0.11 MB/sec execute 89 sec latency 18198.633 ms oleg355-server: oleg355-server.virtnet: executing set_default_debug -1 all 1 2259 0.11 MB/sec execute 90 sec latency 19198.916 ms pdsh@oleg355-client: oleg355-server: ssh exited with exit code 1 1 2259 0.11 MB/sec execute 91 sec latency 20199.262 ms Started lustre-MDT0001 23:17:55 (1787368675) targets are mounted 23:17:55 (1787368675) facet_failover done 1 2259 0.10 MB/sec execute 92 sec latency 21204.894 ms 1 2282 0.11 MB/sec execute 93 sec latency 22025.474 ms 1 2342 0.11 MB/sec execute 94 sec latency 122.090 ms 1 2373 0.11 MB/sec execute 95 sec latency 126.900 ms 1 2405 0.11 MB/sec execute 96 sec latency 164.201 ms 1 2429 0.11 MB/sec execute 97 sec latency 171.156 ms 1 2466 0.12 MB/sec execute 98 sec latency 113.884 ms 1 2498 0.12 MB/sec execute 99 sec latency 142.931 ms oleg355-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0001-mdc-*.mds_server_uuid 1475 0 1 cleanup 100 sec 1 cleanup 101 sec mdc.lustre-MDT0001-mdc-*.mds_server_uuid in FULL state after 0 sec 1 cleanup 102 sec 1 cleanup 103 sec 1 cleanup 104 sec 0 cleanup 105 sec Operation Count AvgLat MaxLat ---------------------------------------- NTCreateX 355 117.943 22025.456 Close 306 141.670 39335.129 Rename 15 111.183 171.576 Unlink 38 26.327 55.304 Qpathinfo 343 17.513 126.871 Qfileinfo 82 2.709 42.574 Qfsinfo 43 4.507 36.980 Sfileinfo 49 65.919 171.133 Find 116 12.256 73.564 WriteX 275 13.480 87.749 ReadX 427 3.154 96.994 Flush 34 57.166 123.747 Throughput 0.116168 MB/sec 1 clients 1 procs max_latency=39335.163 ms stopping dbench on /mnt/lustre at Fri Aug 21 23:18:08 EDT 2026 with return code 0 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished striped dir -i0 -c2 -H crush /mnt/lustre2/d26.replay-dual/run_dbench UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2328 1268976 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 2096 1269208 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 12868 3594096 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 12088 3594584 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 24956 7188680 1% /mnt/lustre 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 Fri Aug 21 23:18:17 EDT 2026 waiting for dbench pid 67982 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 0 2 0.00 MB/sec warmup 1 sec latency 942.653 ms 0 3 0.00 MB/sec warmup 2 sec latency 59.395 ms 1 30 0.35 MB/sec warmup 3 sec latency 21.869 ms 1 79 0.87 MB/sec warmup 4 sec latency 123.962 ms 1 119 1.08 MB/sec warmup 5 sec latency 183.782 ms test_26 fail mds1 3 times 1 143 1.01 MB/sec warmup 6 sec latency 246.775 ms 1 173 1.01 MB/sec warmup 7 sec latency 179.619 ms Failing mds1 on oleg355-server 1 189 0.95 MB/sec warmup 8 sec latency 554.694 ms Stopping /mnt/lustre-mds1 (opts:) on oleg355-server 1 215 0.93 MB/sec warmup 9 sec latency 168.170 ms 1 263 0.99 MB/sec warmup 10 sec latency 147.382 ms 1 311 1.04 MB/sec warmup 11 sec latency 96.451 ms 1 339 1.02 MB/sec warmup 12 sec latency 514.631 ms 1 339 0.94 MB/sec warmup 13 sec latency 1515.051 ms 1 339 0.87 MB/sec warmup 14 sec latency 2515.243 ms 1 339 0.82 MB/sec warmup 15 sec latency 3517.476 ms 1 339 0.77 MB/sec warmup 16 sec latency 4517.663 ms 1 339 0.72 MB/sec warmup 17 sec latency 5517.880 ms 1 339 0.68 MB/sec warmup 18 sec latency 6518.090 ms 23:18:35 (1787368715) shut down facet: mds1 facet_host: oleg355-server facet_failover_host: oleg355-server 1 339 0.64 MB/sec warmup 19 sec latency 7518.399 ms 1 339 0.00 MB/sec execute 1 sec latency 9519.955 ms 1 339 0.00 MB/sec execute 2 sec latency 10521.600 ms 1 339 0.00 MB/sec execute 3 sec latency 11521.803 ms 1 339 0.00 MB/sec execute 4 sec latency 12523.054 ms 1 339 0.00 MB/sec execute 5 sec latency 13523.396 ms 1 339 0.00 MB/sec execute 6 sec latency 14523.891 ms 1 339 0.00 MB/sec execute 7 sec latency 15524.139 ms 1 339 0.00 MB/sec execute 8 sec latency 16524.403 ms Failover mds1 to oleg355-server mount facets: mds1 1 339 0.00 MB/sec execute 9 sec latency 17528.221 ms 1 339 0.00 MB/sec execute 10 sec latency 18529.530 ms 1 339 0.00 MB/sec execute 11 sec latency 19531.613 ms 1 339 0.00 MB/sec execute 12 sec latency 20532.994 ms 1 339 0.00 MB/sec execute 13 sec latency 21533.200 ms 1 339 0.00 MB/sec execute 14 sec latency 22533.460 ms 1 339 0.00 MB/sec execute 15 sec latency 23542.593 ms 1 339 0.00 MB/sec execute 16 sec latency 24542.774 ms 1 339 0.00 MB/sec execute 17 sec latency 25542.950 ms 1 339 0.00 MB/sec execute 18 sec latency 26543.185 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 339 0.00 MB/sec execute 19 sec latency 27543.405 ms 1 339 0.00 MB/sec execute 20 sec latency 28543.671 ms 1 339 0.00 MB/sec execute 21 sec latency 29544.106 ms 1 339 0.00 MB/sec execute 22 sec latency 30545.587 ms 1 339 0.00 MB/sec execute 23 sec latency 31545.778 ms 1 339 0.00 MB/sec execute 24 sec latency 32546.052 ms 1 339 0.00 MB/sec execute 25 sec latency 33546.754 ms 1 339 0.00 MB/sec execute 26 sec latency 34548.382 ms 1 339 0.00 MB/sec execute 27 sec latency 35549.560 ms 1 339 0.00 MB/sec execute 28 sec latency 36549.815 ms oleg355-server: oleg355-server.virtnet: executing set_default_debug -1 all 1 339 0.00 MB/sec execute 29 sec latency 37550.221 ms pdsh@oleg355-client: oleg355-server: ssh exited with exit code 1 1 339 0.00 MB/sec execute 30 sec latency 38550.398 ms Started lustre-MDT0000 23:19:07 (1787368747) targets are mounted 23:19:07 (1787368747) facet_failover done 1 346 0.00 MB/sec execute 31 sec latency 39357.400 ms 1 381 0.04 MB/sec execute 32 sec latency 141.933 ms 1 418 0.07 MB/sec execute 33 sec latency 125.476 ms 1 453 0.11 MB/sec execute 34 sec latency 168.044 ms 1 486 0.13 MB/sec execute 35 sec latency 132.318 ms 1 516 0.15 MB/sec execute 36 sec latency 147.787 ms 1 601 0.23 MB/sec execute 37 sec latency 132.379 ms oleg355-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 652 0.23 MB/sec execute 38 sec latency 111.436 ms 1 689 0.23 MB/sec execute 39 sec latency 101.451 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 711 0.22 MB/sec execute 40 sec latency 154.364 ms 1 736 0.22 MB/sec execute 41 sec latency 123.834 ms 1 769 0.22 MB/sec execute 42 sec latency 113.520 ms 1 799 0.21 MB/sec execute 43 sec latency 128.413 ms 1 827 0.21 MB/sec execute 44 sec latency 130.444 ms 1 881 0.21 MB/sec execute 45 sec latency 107.309 ms 1 884 0.20 MB/sec execute 46 sec latency 903.422 ms 1 900 0.20 MB/sec execute 47 sec latency 1409.326 ms 1 930 0.20 MB/sec execute 48 sec latency 114.272 ms 1 977 0.20 MB/sec execute 49 sec latency 92.917 ms 1 1033 0.21 MB/sec execute 50 sec latency 109.564 ms tar: Unexpected EOF in archive tar: Unexpected EOF in archive 1 1084 0.21 MB/sec execute 51 sec latency 82.150 ms 1 1132 0.21 MB/sec execute 52 sec latency 107.449 ms 1 1173 0.20 MB/sec execute 53 sec latency 121.769 ms 1 1214 0.20 MB/sec execute 54 sec latency 128.918 ms 1 1251 0.20 MB/sec execute 55 sec latency 91.299 ms 1 1383 0.24 MB/sec execute 56 sec latency 102.701 ms 1 1422 0.24 MB/sec execute 57 sec latency 98.362 ms 1 1468 0.24 MB/sec execute 58 sec latency 350.181 ms 1 1509 0.23 MB/sec execute 59 sec latency 128.292 ms 1 1562 0.23 MB/sec execute 60 sec latency 120.167 ms tar: Error is not recoverable: exiting now 1 1625 0.23 MB/sec execute 61 sec latency 79.090 ms dbench killed by signal 15 stopping dbench on /mnt/lustre at Fri Aug 21 23:19:38 EDT 2026 with return code 0 67982 pts/0 S+ 0:00 dbench -c client.txt 1 -D /mnt/lustre2/d26.replay-dual/run_dbench -t 100 killed dbench main pid 67982 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished