== replay-dual test 26: dbench and tar with mds failover ========================================================== 08:42:55 (1787834575) Starting client oleg325-client.virtnet: -o user_xattr,flock 192.168.203.125@tcp:/lustre /mnt/lustre Started clients oleg325-client.virtnet: 192.168.203.125@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 65639 Started dbench loop with 65640 striped dir -i0 -c2 -H crush2 /mnt/lustre2/d26.replay-dual/run_dbench striped dir -i0 -c2 -H fnv_1a_64 /mnt/lustre/d26.replay-dual/run_tar 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 1752 1269552 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 1564 3605456 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 5640 3584824 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 7204 7190280 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 Thu Aug 27 08:43:00 EDT 2026 waiting for dbench pid 65720 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 57.373 ms 1 70 1.57 MB/sec warmup 2 sec latency 135.792 ms 1 107 1.68 MB/sec warmup 3 sec latency 174.413 ms 1 136 1.50 MB/sec warmup 4 sec latency 152.978 ms 1 155 1.31 MB/sec warmup 5 sec latency 274.031 ms 1 165 1.13 MB/sec warmup 6 sec latency 521.753 ms 1 184 1.05 MB/sec warmup 7 sec latency 666.117 ms 1 199 0.98 MB/sec warmup 8 sec latency 591.173 ms 1 235 0.99 MB/sec warmup 9 sec latency 192.375 ms test_26 fail mds1 1 times 1 279 1.04 MB/sec warmup 10 sec latency 141.049 ms 1 306 1.02 MB/sec warmup 11 sec latency 139.905 ms Failing mds1 on oleg325-server 1 339 1.02 MB/sec warmup 12 sec latency 143.376 ms Stopping /mnt/lustre-mds1 (opts:) on oleg325-server 1 370 1.01 MB/sec warmup 13 sec latency 157.136 ms 1 388 0.99 MB/sec warmup 14 sec latency 455.773 ms 1 388 0.92 MB/sec warmup 15 sec latency 1456.018 ms 1 388 0.86 MB/sec warmup 16 sec latency 2456.493 ms 08:43:17 (1787834597) shut down facet: mds1 facet_host: oleg325-server facet_failover_host: oleg325-server 1 388 0.81 MB/sec warmup 17 sec latency 3456.846 ms 1 388 0.77 MB/sec warmup 18 sec latency 4458.396 ms 1 388 0.73 MB/sec warmup 19 sec latency 5459.323 ms 1 388 0.00 MB/sec execute 1 sec latency 7459.769 ms 1 388 0.00 MB/sec execute 2 sec latency 8460.492 ms 1 388 0.00 MB/sec execute 3 sec latency 9460.683 ms 1 388 0.00 MB/sec execute 4 sec latency 10461.191 ms 1 388 0.00 MB/sec execute 5 sec latency 11461.446 ms 1 388 0.00 MB/sec execute 6 sec latency 12461.903 ms Failover mds1 to oleg325-server 1 388 0.00 MB/sec execute 7 sec latency 13463.377 ms mount facets: mds1 1 388 0.00 MB/sec execute 8 sec latency 14463.627 ms 1 388 0.00 MB/sec execute 9 sec latency 15464.629 ms 1 388 0.00 MB/sec execute 10 sec latency 16467.662 ms 1 388 0.00 MB/sec execute 11 sec latency 17468.538 ms 1 388 0.00 MB/sec execute 12 sec latency 18470.141 ms 1 388 0.00 MB/sec execute 13 sec latency 19470.765 ms 1 388 0.00 MB/sec execute 14 sec latency 20471.062 ms 1 388 0.00 MB/sec execute 15 sec latency 21472.639 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 388 0.00 MB/sec execute 16 sec latency 22480.420 ms 1 388 0.00 MB/sec execute 17 sec latency 23480.683 ms 1 388 0.00 MB/sec execute 18 sec latency 24482.626 ms 1 388 0.00 MB/sec execute 19 sec latency 25484.782 ms 1 388 0.00 MB/sec execute 20 sec latency 26485.028 ms 1 388 0.00 MB/sec execute 21 sec latency 27488.665 ms 1 388 0.00 MB/sec execute 22 sec latency 28488.931 ms 1 388 0.00 MB/sec execute 23 sec latency 29490.266 ms 1 388 0.00 MB/sec execute 24 sec latency 30490.542 ms 1 388 0.00 MB/sec execute 25 sec latency 31490.829 ms 1 388 0.00 MB/sec execute 26 sec latency 32490.989 ms 1 388 0.00 MB/sec execute 27 sec latency 33491.230 ms 1 388 0.00 MB/sec execute 28 sec latency 34491.486 ms 1 388 0.00 MB/sec execute 29 sec latency 35491.928 ms oleg325-server: oleg325-server.virtnet: executing set_default_debug -1 all 1 388 0.00 MB/sec execute 30 sec latency 36492.158 ms pdsh@oleg325-client: oleg325-server: ssh exited with exit code 1 1 388 0.00 MB/sec execute 31 sec latency 37492.336 ms Started lustre-MDT0000 08:43:52 (1787834632) targets are mounted 08:43:52 (1787834632) facet_failover done 1 388 0.00 MB/sec execute 32 sec latency 38492.766 ms 1 413 0.02 MB/sec execute 33 sec latency 38773.448 ms 1 452 0.06 MB/sec execute 34 sec latency 116.906 ms 1 485 0.09 MB/sec execute 35 sec latency 127.661 ms 1 513 0.11 MB/sec execute 36 sec latency 174.038 ms 1 552 0.14 MB/sec execute 37 sec latency 233.514 ms 1 607 0.19 MB/sec execute 38 sec latency 590.089 ms oleg325-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 655 0.19 MB/sec execute 39 sec latency 150.373 ms 1 688 0.18 MB/sec execute 40 sec latency 133.580 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 711 0.18 MB/sec execute 41 sec latency 160.123 ms 1 743 0.18 MB/sec execute 42 sec latency 130.811 ms 1 781 0.18 MB/sec execute 43 sec latency 115.562 ms 1 821 0.17 MB/sec execute 44 sec latency 97.048 ms 1 873 0.17 MB/sec execute 45 sec latency 95.880 ms 1 907 0.17 MB/sec execute 46 sec latency 111.036 ms 1 940 0.17 MB/sec execute 47 sec latency 109.047 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2052 1269252 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 1860 1269444 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 15428 3583940 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 32508 3570024 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 47936 7153964 1% /mnt/lustre 1 980 0.17 MB/sec execute 48 sec latency 111.589 ms 1 1029 0.18 MB/sec execute 49 sec latency 104.105 ms 1 1074 0.18 MB/sec execute 50 sec latency 100.756 ms 1 1119 0.18 MB/sec execute 51 sec latency 84.516 ms 1 1155 0.18 MB/sec execute 52 sec latency 110.526 ms 1 1172 0.17 MB/sec execute 53 sec latency 622.439 ms 1 1177 0.17 MB/sec execute 54 sec latency 1308.038 ms 1 1214 0.17 MB/sec execute 55 sec latency 102.597 ms 1 1249 0.17 MB/sec execute 56 sec latency 116.693 ms test_26 fail mds2 2 times 1 1378 0.21 MB/sec execute 57 sec latency 79.215 ms 1 1401 0.21 MB/sec execute 58 sec latency 105.101 ms 1 1426 0.21 MB/sec execute 59 sec latency 136.503 ms Failing mds2 on oleg325-server 1 1473 0.20 MB/sec execute 60 sec latency 114.412 ms Stopping /mnt/lustre-mds2 (opts:) on oleg325-server 1 1508 0.20 MB/sec execute 61 sec latency 122.428 ms 1 1562 0.20 MB/sec execute 62 sec latency 112.415 ms 1 1628 0.20 MB/sec execute 63 sec latency 81.308 ms 1 1686 0.19 MB/sec execute 64 sec latency 95.983 ms 1 1770 0.19 MB/sec execute 65 sec latency 121.169 ms 1 1825 0.19 MB/sec execute 66 sec latency 95.588 ms 1 1877 0.19 MB/sec execute 67 sec latency 102.732 ms 1 1932 0.19 MB/sec execute 68 sec latency 114.791 ms 1 1978 0.18 MB/sec execute 69 sec latency 214.309 ms 08:44:30 (1787834670) shut down facet: mds2 facet_host: oleg325-server facet_failover_host: oleg325-server 1 2014 0.18 MB/sec execute 70 sec latency 222.203 ms 1 2088 0.18 MB/sec execute 71 sec latency 80.969 ms 1 2150 0.18 MB/sec execute 72 sec latency 89.559 ms 1 2190 0.18 MB/sec execute 73 sec latency 99.404 ms 1 2259 0.17 MB/sec execute 74 sec latency 100.106 ms 1 2259 0.17 MB/sec execute 75 sec latency 1100.636 ms 1 2259 0.17 MB/sec execute 76 sec latency 2101.458 ms 1 2259 0.17 MB/sec execute 77 sec latency 3101.778 ms 1 2259 0.17 MB/sec execute 78 sec latency 4101.978 ms 1 2259 0.16 MB/sec execute 79 sec latency 5102.285 ms Failover mds2 to oleg325-server 1 2259 0.16 MB/sec execute 80 sec latency 6103.684 ms mount facets: mds2 1 2259 0.16 MB/sec execute 81 sec latency 7103.857 ms 1 2259 0.16 MB/sec execute 82 sec latency 8104.079 ms 1 2259 0.16 MB/sec execute 83 sec latency 9104.972 ms 1 2259 0.15 MB/sec execute 84 sec latency 10107.015 ms 1 2259 0.15 MB/sec execute 85 sec latency 11107.834 ms 1 2259 0.15 MB/sec execute 86 sec latency 12110.206 ms 1 2259 0.15 MB/sec execute 87 sec latency 13110.603 ms 1 2259 0.15 MB/sec execute 88 sec latency 14111.219 ms Start mds2: mount -t lustre -o localrecov /dev/mapper/mds2_flakey /mnt/lustre-mds2 1 2259 0.15 MB/sec execute 89 sec latency 15113.686 ms 1 2259 0.14 MB/sec execute 90 sec latency 16114.191 ms 1 2259 0.14 MB/sec execute 91 sec latency 17115.382 ms 1 2259 0.14 MB/sec execute 92 sec latency 18115.654 ms 1 2259 0.14 MB/sec execute 93 sec latency 19115.901 ms 1 2259 0.14 MB/sec execute 94 sec latency 20116.260 ms oleg325-server: oleg325-server.virtnet: executing set_default_debug -1 all 1 2259 0.14 MB/sec execute 95 sec latency 21117.412 ms pdsh@oleg325-client: oleg325-server: ssh exited with exit code 1 1 2259 0.13 MB/sec execute 96 sec latency 22118.705 ms Started lustre-MDT0001 08:44:57 (1787834697) targets are mounted 08:44:57 (1787834697) facet_failover done 1 2259 0.13 MB/sec execute 97 sec latency 23119.756 ms 1 2284 0.14 MB/sec execute 98 sec latency 23845.969 ms 1 2346 0.14 MB/sec execute 99 sec latency 107.190 ms 1 cleanup 100 sec 1 cleanup 101 sec 1 cleanup 102 sec 1 cleanup 103 sec oleg325-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0001-mdc-*.mds_server_uuid 1475 0 0 cleanup 104 sec Operation Count AvgLat MaxLat ---------------------------------------- NTCreateX 343 127.730 23845.948 Close 299 141.720 38773.415 Rename 12 85.569 160.100 Unlink 31 28.972 52.836 Qpathinfo 311 16.101 105.510 Qfileinfo 87 1.951 17.192 Qfsinfo 38 5.897 25.867 Sfileinfo 39 67.051 133.564 Find 105 14.404 103.530 WriteX 313 13.471 84.444 ReadX 379 2.428 75.662 Flush 32 58.343 130.274 Throughput 0.14191 MB/sec 1 clients 1 procs max_latency=38773.448 ms stopping dbench on /mnt/lustre at Thu Aug 27 08:45:04 EDT 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-MDT0001-mdc-*.mds_server_uuid in FULL state after 0 sec striped dir -i0 -c2 -H fnv_1a_64 /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 2320 1268984 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 2092 1269212 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 16040 3585800 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 22360 3580144 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 38400 7165944 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 Thu Aug 27 08:45:14 EDT 2026 waiting for dbench pid 67869 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 12 0.00 MB/sec warmup 1 sec latency 22.198 ms 1 78 1.70 MB/sec warmup 2 sec latency 137.753 ms 1 114 1.75 MB/sec warmup 3 sec latency 180.258 ms 1 147 1.57 MB/sec warmup 4 sec latency 151.054 ms 1 174 1.41 MB/sec warmup 5 sec latency 166.250 ms 1 189 1.26 MB/sec warmup 6 sec latency 486.577 ms 1 223 1.23 MB/sec warmup 7 sec latency 145.959 ms 1 263 1.24 MB/sec warmup 8 sec latency 120.459 ms 1 311 1.27 MB/sec warmup 9 sec latency 125.488 ms test_26 fail mds1 3 times 1 341 1.22 MB/sec warmup 10 sec latency 164.217 ms 1 378 1.22 MB/sec warmup 11 sec latency 131.846 ms Failing mds1 on oleg325-server 1 413 1.22 MB/sec warmup 12 sec latency 148.209 ms Stopping /mnt/lustre-mds1 (opts:) on oleg325-server 1 454 1.22 MB/sec warmup 13 sec latency 123.832 ms 1 476 1.19 MB/sec warmup 14 sec latency 517.705 ms 1 476 1.11 MB/sec warmup 15 sec latency 1520.655 ms 08:45:30 (1787834730) shut down 1 476 1.04 MB/sec warmup 16 sec latency 2520.825 ms facet: mds1 facet_host: oleg325-server facet_failover_host: oleg325-server 1 476 0.98 MB/sec warmup 17 sec latency 3521.926 ms 1 476 0.93 MB/sec warmup 18 sec latency 4522.102 ms 1 476 0.88 MB/sec warmup 19 sec latency 5522.307 ms 1 476 0.00 MB/sec execute 1 sec latency 7523.078 ms 1 476 0.00 MB/sec execute 2 sec latency 8523.407 ms 1 476 0.00 MB/sec execute 3 sec latency 9524.413 ms 1 476 0.00 MB/sec execute 4 sec latency 10524.737 ms 1 476 0.00 MB/sec execute 5 sec latency 11525.418 ms 1 476 0.00 MB/sec execute 6 sec latency 12525.895 ms Failover mds1 to oleg325-server mount facets: mds1 1 476 0.00 MB/sec execute 7 sec latency 13526.386 ms 1 476 0.00 MB/sec execute 8 sec latency 14527.725 ms 1 476 0.00 MB/sec execute 9 sec latency 15535.371 ms 1 476 0.00 MB/sec execute 10 sec latency 16536.359 ms 1 476 0.00 MB/sec execute 11 sec latency 17536.660 ms 1 476 0.00 MB/sec execute 12 sec latency 18536.905 ms 1 476 0.00 MB/sec execute 13 sec latency 19538.268 ms 1 476 0.00 MB/sec execute 14 sec latency 20541.698 ms 1 476 0.00 MB/sec execute 15 sec latency 21542.238 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 476 0.00 MB/sec execute 16 sec latency 22543.553 ms 1 476 0.00 MB/sec execute 17 sec latency 23543.805 ms 1 476 0.00 MB/sec execute 18 sec latency 24552.155 ms 1 476 0.00 MB/sec execute 19 sec latency 25556.745 ms 1 476 0.00 MB/sec execute 20 sec latency 26557.157 ms 1 476 0.00 MB/sec execute 21 sec latency 27557.452 ms 1 476 0.00 MB/sec execute 22 sec latency 28558.663 ms 1 476 0.00 MB/sec execute 23 sec latency 29558.938 ms 1 476 0.00 MB/sec execute 24 sec latency 30559.544 ms 1 476 0.00 MB/sec execute 25 sec latency 31561.719 ms 1 476 0.00 MB/sec execute 26 sec latency 32562.801 ms 1 476 0.00 MB/sec execute 27 sec latency 33563.854 ms 1 476 0.00 MB/sec execute 28 sec latency 34565.502 ms 1 476 0.00 MB/sec execute 29 sec latency 35565.772 ms oleg325-server: oleg325-server.virtnet: executing set_default_debug -1 all 1 476 0.00 MB/sec execute 30 sec latency 36566.075 ms pdsh@oleg325-client: oleg325-server: ssh exited with exit code 1 1 476 0.00 MB/sec execute 31 sec latency 37566.290 ms Started lustre-MDT0000 08:46:05 (1787834765) targets are mounted 08:46:06 (1787834766) facet_failover done 1 476 0.00 MB/sec execute 32 sec latency 38570.259 ms 1 477 0.00 MB/sec execute 33 sec latency 39497.125 ms 1 507 0.02 MB/sec execute 34 sec latency 171.560 ms 1 552 0.07 MB/sec execute 35 sec latency 188.764 ms 1 606 0.12 MB/sec execute 36 sec latency 599.319 ms 1 656 0.12 MB/sec execute 37 sec latency 118.620 ms oleg325-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 699 0.12 MB/sec execute 38 sec latency 96.460 ms 1 730 0.12 MB/sec execute 39 sec latency 120.471 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 765 0.12 MB/sec execute 40 sec latency 106.311 ms 1 794 0.12 MB/sec execute 41 sec latency 126.872 ms 1 845 0.12 MB/sec execute 42 sec latency 106.449 ms 1 878 0.12 MB/sec execute 43 sec latency 100.449 ms 1 909 0.12 MB/sec execute 44 sec latency 177.087 ms 1 942 0.11 MB/sec execute 45 sec latency 174.807 ms 1 971 0.11 MB/sec execute 46 sec latency 152.092 ms 1 1005 0.11 MB/sec execute 47 sec latency 139.931 ms 1 1058 0.13 MB/sec execute 48 sec latency 113.632 ms 1 1103 0.13 MB/sec execute 49 sec latency 89.045 ms 1 1134 0.13 MB/sec execute 50 sec latency 189.700 ms 1 1172 0.12 MB/sec execute 51 sec latency 125.825 ms 1 1172 0.12 MB/sec execute 52 sec latency 1024.249 ms 1 1201 0.12 MB/sec execute 53 sec latency 1131.354 ms 1 1242 0.12 MB/sec execute 54 sec latency 142.239 ms 1 1296 0.12 MB/sec execute 55 sec latency 107.726 ms 1 1403 0.17 MB/sec execute 56 sec latency 96.938 ms dbench killed by signal 15 stopping dbench on /mnt/lustre at Thu Aug 27 08:46:30 EDT 2026 with return code 0 67869 pts/0 S+ 0:00 dbench -c client.txt 1 -D /mnt/lustre2/d26.replay-dual/run_dbench -t 100 1 1439 0.16 MB/sec execute 57 sec latency 118.585 ms killed dbench main pid 67869 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished