== replay-dual test 26: dbench and tar with mds failover ========================================================== 13:19:15 (1780334355) Starting client oleg131-client.virtnet: -o user_xattr,flock 192.168.201.131@tcp:/lustre /mnt/lustre Started clients oleg131-client.virtnet: 192.168.201.131@tcp:/lustre on /mnt/lustre type lustre (rw,flock,checksum,encrypt,lazystatfs,lruresize,nolock,statfs_project,nouser_fid2path,user_xattr,verbose) Started tar loop with pid 64858 Started dbench loop with 64859 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 1972 1269332 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 1756 1269548 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 1564 3605456 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 5640 3584816 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 7204 7190272 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 Jun 1 13:19:22 EDT 2026 waiting for dbench pid 64938 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 36.664 ms 1 60 1.24 MB/sec warmup 2 sec latency 162.356 ms 1 111 1.74 MB/sec warmup 3 sec latency 143.437 ms 1 134 1.47 MB/sec warmup 4 sec latency 262.912 ms 1 155 1.30 MB/sec warmup 5 sec latency 274.734 ms 1 155 1.09 MB/sec warmup 6 sec latency 1275.233 ms 1 180 1.04 MB/sec warmup 7 sec latency 1453.714 ms 1 197 0.98 MB/sec warmup 8 sec latency 517.366 ms 1 239 1.01 MB/sec warmup 9 sec latency 119.777 ms test_26 fail mds1 1 times 1 282 1.04 MB/sec warmup 10 sec latency 112.314 ms 1 314 1.04 MB/sec warmup 11 sec latency 169.147 ms Failing mds1 on oleg131-server 1 335 1.00 MB/sec warmup 12 sec latency 236.802 ms 1 358 0.98 MB/sec warmup 13 sec latency 169.858 ms Stopping /mnt/lustre-mds1 (opts:) on oleg131-server 1 384 0.97 MB/sec warmup 14 sec latency 197.572 ms 1 397 0.94 MB/sec warmup 15 sec latency 698.905 ms 1 397 0.88 MB/sec warmup 16 sec latency 1700.011 ms 1 397 0.83 MB/sec warmup 17 sec latency 2701.511 ms 13:19:39 (1780334379) shut down facet: mds1 facet_host: oleg131-server facet_failover_host: oleg131-server 1 397 0.78 MB/sec warmup 18 sec latency 3703.400 ms 1 397 0.74 MB/sec warmup 19 sec latency 4704.955 ms 1 397 0.00 MB/sec execute 1 sec latency 6705.409 ms 1 397 0.00 MB/sec execute 2 sec latency 7705.594 ms 1 397 0.00 MB/sec execute 3 sec latency 8705.790 ms 1 397 0.00 MB/sec execute 4 sec latency 9706.021 ms 1 397 0.00 MB/sec execute 5 sec latency 10706.780 ms 1 397 0.00 MB/sec execute 6 sec latency 11708.799 ms 1 397 0.00 MB/sec execute 7 sec latency 12710.706 ms Failover mds1 to oleg131-server mount facets: mds1 1 397 0.00 MB/sec execute 8 sec latency 13716.772 ms 1 397 0.00 MB/sec execute 9 sec latency 14717.279 ms 1 397 0.00 MB/sec execute 10 sec latency 15717.763 ms 1 397 0.00 MB/sec execute 11 sec latency 16717.944 ms 1 397 0.00 MB/sec execute 12 sec latency 17718.269 ms 1 397 0.00 MB/sec execute 13 sec latency 18718.487 ms 1 397 0.00 MB/sec execute 14 sec latency 19718.748 ms 1 397 0.00 MB/sec execute 15 sec latency 20719.010 ms 1 397 0.00 MB/sec execute 16 sec latency 21719.392 ms 1 397 0.00 MB/sec execute 17 sec latency 22719.564 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 397 0.00 MB/sec execute 18 sec latency 23722.638 ms 1 397 0.00 MB/sec execute 19 sec latency 24722.853 ms 1 397 0.00 MB/sec execute 20 sec latency 25723.959 ms 1 397 0.00 MB/sec execute 21 sec latency 26724.189 ms 1 397 0.00 MB/sec execute 22 sec latency 27729.629 ms 1 397 0.00 MB/sec execute 23 sec latency 28730.137 ms 1 397 0.00 MB/sec execute 24 sec latency 29732.128 ms 1 397 0.00 MB/sec execute 25 sec latency 30732.982 ms 1 397 0.00 MB/sec execute 26 sec latency 31735.371 ms oleg131-server: oleg131-server.virtnet: executing set_default_debug -1 all 1 397 0.00 MB/sec execute 27 sec latency 32735.573 ms 1 397 0.00 MB/sec execute 28 sec latency 33735.787 ms pdsh@oleg131-client: oleg131-server: ssh exited with exit code 1 1 397 0.00 MB/sec execute 29 sec latency 34740.980 ms Started lustre-MDT0000 13:20:11 (1780334411) targets are mounted 13:20:11 (1780334411) facet_failover done 1 413 0.02 MB/sec execute 30 sec latency 35405.295 ms 1 461 0.07 MB/sec execute 31 sec latency 109.712 ms 1 503 0.11 MB/sec execute 32 sec latency 100.641 ms 1 537 0.14 MB/sec execute 33 sec latency 213.410 ms 1 572 0.15 MB/sec execute 34 sec latency 680.346 ms oleg131-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1 616 0.20 MB/sec execute 35 sec latency 132.537 ms 1 661 0.20 MB/sec execute 36 sec latency 153.626 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 699 0.19 MB/sec execute 37 sec latency 105.500 ms 1 731 0.19 MB/sec execute 38 sec latency 138.923 ms 1 769 0.19 MB/sec execute 39 sec latency 139.293 ms 1 799 0.18 MB/sec execute 40 sec latency 124.976 ms 1 851 0.18 MB/sec execute 41 sec latency 92.672 ms 1 900 0.18 MB/sec execute 42 sec latency 133.001 ms UUID 1K-blocks Used Available Use% Mounted on 1 926 0.18 MB/sec execute 43 sec latency 123.157 ms lustre-MDT0000_UUID 1414116 2096 1269208 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 1860 1269444 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 11484 3591460 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 36732 3566888 2% /mnt/lustre[OST:1] filesystem_summary: 7666232 48216 7158348 1% /mnt/lustre 1 967 0.18 MB/sec execute 44 sec latency 87.600 ms 1 988 0.17 MB/sec execute 45 sec latency 119.326 ms 1 1051 0.19 MB/sec execute 46 sec latency 93.337 ms 1 1092 0.19 MB/sec execute 47 sec latency 91.835 ms 1 1147 0.19 MB/sec execute 48 sec latency 72.903 ms 1 1172 0.18 MB/sec execute 49 sec latency 638.362 ms 1 1195 0.18 MB/sec execute 50 sec latency 818.021 ms 1 1244 0.18 MB/sec execute 51 sec latency 69.849 ms 1 1379 0.23 MB/sec execute 52 sec latency 93.049 ms test_26 fail mds2 2 times 1 1403 0.22 MB/sec execute 53 sec latency 167.226 ms 1 1421 0.22 MB/sec execute 54 sec latency 171.927 ms Failing mds2 on oleg131-server 1 1451 0.22 MB/sec execute 55 sec latency 155.068 ms Stopping /mnt/lustre-mds2 (opts:) on oleg131-server 1 1492 0.21 MB/sec execute 56 sec latency 106.682 ms 1 1519 0.21 MB/sec execute 57 sec latency 125.434 ms 1 1603 0.21 MB/sec execute 58 sec latency 114.116 ms 1 1684 0.21 MB/sec execute 59 sec latency 66.773 ms 1 1756 0.20 MB/sec execute 60 sec latency 88.417 ms 1 1837 0.20 MB/sec execute 61 sec latency 59.415 ms 1 1884 0.20 MB/sec execute 62 sec latency 120.888 ms 1 1964 0.20 MB/sec execute 63 sec latency 81.978 ms 1 1988 0.19 MB/sec execute 64 sec latency 304.166 ms 1 2024 0.19 MB/sec execute 65 sec latency 119.086 ms 13:20:48 (1780334448) shut down facet: mds2 facet_host: oleg131-server facet_failover_host: oleg131-server 1 2091 0.19 MB/sec execute 66 sec latency 81.749 ms 1 2152 0.19 MB/sec execute 67 sec latency 122.481 ms 1 2209 0.19 MB/sec execute 68 sec latency 131.210 ms 1 2259 0.18 MB/sec execute 69 sec latency 376.576 ms 1 2259 0.18 MB/sec execute 70 sec latency 1376.776 ms 1 2259 0.18 MB/sec execute 71 sec latency 2377.757 ms 1 2259 0.18 MB/sec execute 72 sec latency 3378.019 ms 1 2259 0.17 MB/sec execute 73 sec latency 4378.336 ms 1 2259 0.17 MB/sec execute 74 sec latency 5378.707 ms 1 2259 0.17 MB/sec execute 75 sec latency 6380.343 ms Failover mds2 to oleg131-server mount facets: mds2 1 2259 0.17 MB/sec execute 76 sec latency 7384.997 ms 1 2259 0.16 MB/sec execute 77 sec latency 8385.342 ms 1 2259 0.16 MB/sec execute 78 sec latency 9386.053 ms 1 2259 0.16 MB/sec execute 79 sec latency 10386.298 ms 1 2259 0.16 MB/sec execute 80 sec latency 11387.127 ms 1 2259 0.16 MB/sec execute 81 sec latency 12388.013 ms 1 2259 0.15 MB/sec execute 82 sec latency 13391.093 ms 1 2259 0.15 MB/sec execute 83 sec latency 14392.157 ms 1 2259 0.15 MB/sec execute 84 sec latency 15392.619 ms 1 2259 0.15 MB/sec execute 85 sec latency 16393.786 ms Start mds2: mount -t lustre -o localrecov /dev/mapper/mds2_flakey /mnt/lustre-mds2 1 2259 0.15 MB/sec execute 86 sec latency 17394.972 ms 1 2259 0.15 MB/sec execute 87 sec latency 18396.453 ms 1 2259 0.14 MB/sec execute 88 sec latency 19396.913 ms 1 2259 0.14 MB/sec execute 89 sec latency 20397.411 ms 1 2259 0.14 MB/sec execute 90 sec latency 21398.818 ms 1 2259 0.14 MB/sec execute 91 sec latency 22399.851 ms 1 2259 0.14 MB/sec execute 92 sec latency 23401.832 ms oleg131-server: oleg131-server.virtnet: executing set_default_debug -1 all 1 2259 0.14 MB/sec execute 93 sec latency 24403.294 ms 1 2259 0.13 MB/sec execute 94 sec latency 25403.856 ms pdsh@oleg131-client: oleg131-server: ssh exited with exit code 1 1 2259 0.13 MB/sec execute 95 sec latency 26406.465 ms Started lustre-MDT0001 13:21:18 (1780334478) targets are mounted 13:21:18 (1780334478) facet_failover done 1 2305 0.14 MB/sec execute 96 sec latency 26897.156 ms 1 2359 0.14 MB/sec execute 97 sec latency 86.258 ms 1 2388 0.14 MB/sec execute 98 sec latency 132.503 ms 1 2412 0.14 MB/sec execute 99 sec latency 156.491 ms 1 cleanup 100 sec oleg131-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0001-mdc-*.mds_server_uuid 1 cleanup 101 sec 1 cleanup 102 sec 1 cleanup 103 sec mdc.lustre-MDT0001-mdc-*.mds_server_uuid in FULL state after 0 sec 1 cleanup 104 sec 0 cleanup 104 sec Operation Count AvgLat MaxLat ---------------------------------------- NTCreateX 354 230.872 35405.282 Close 306 11.525 46.229 Rename 14 87.923 156.469 Unlink 35 28.646 64.573 Qpathinfo 322 16.559 150.556 Qfileinfo 89 2.410 15.023 Qfsinfo 40 5.341 35.613 Sfileinfo 44 61.110 139.276 Find 109 12.064 57.527 WriteX 316 14.100 110.833 ReadX 382 2.307 89.030 Flush 33 53.656 132.984 Throughput 0.140588 MB/sec 1 clients 1 procs max_latency=35405.295 ms stopping dbench on /mnt/lustre at Mon Jun 1 13:21:27 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 2352 1268952 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 2088 1269216 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 11824 3594396 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 6100 3599572 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 17924 7193968 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 Mon Jun 1 13:21:37 EDT 2026 waiting for dbench pid 67088 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 10 0.00 MB/sec warmup 1 sec latency 24.173 ms 1 61 1.28 MB/sec warmup 2 sec latency 99.022 ms 1 110 1.75 MB/sec warmup 3 sec latency 131.190 ms 1 137 1.50 MB/sec warmup 4 sec latency 170.805 ms 1 157 1.31 MB/sec warmup 5 sec latency 228.792 ms 1 184 1.23 MB/sec warmup 6 sec latency 145.750 ms 1 223 1.23 MB/sec warmup 7 sec latency 346.534 ms test_26 fail mds1 3 times 1 279 1.30 MB/sec warmup 8 sec latency 125.200 ms 1 305 1.24 MB/sec warmup 9 sec latency 182.619 ms Failing mds1 on oleg131-server 1 324 1.17 MB/sec warmup 10 sec latency 230.194 ms 1 357 1.16 MB/sec warmup 11 sec latency 172.905 ms Stopping /mnt/lustre-mds1 (opts:) on oleg131-server 1 381 1.13 MB/sec warmup 12 sec latency 175.282 ms 1 405 1.10 MB/sec warmup 13 sec latency 517.990 ms 1 405 1.02 MB/sec warmup 14 sec latency 1518.229 ms 1 405 0.95 MB/sec warmup 15 sec latency 2518.807 ms 13:21:53 (1780334513) shut down facet: mds1 facet_host: oleg131-server facet_failover_host: oleg131-server 1 405 0.90 MB/sec warmup 16 sec latency 3520.684 ms 1 405 0.84 MB/sec warmup 17 sec latency 4521.633 ms 1 405 0.80 MB/sec warmup 18 sec latency 5521.859 ms 1 405 0.75 MB/sec warmup 19 sec latency 6523.441 ms 1 405 0.00 MB/sec execute 1 sec latency 8523.904 ms 1 405 0.00 MB/sec execute 2 sec latency 9526.452 ms 1 405 0.00 MB/sec execute 3 sec latency 10527.072 ms 1 405 0.00 MB/sec execute 4 sec latency 11527.455 ms 1 405 0.00 MB/sec execute 5 sec latency 12528.197 ms 1 405 0.00 MB/sec execute 6 sec latency 13529.294 ms Failover mds1 to oleg131-server mount facets: mds1 1 405 0.00 MB/sec execute 7 sec latency 14529.531 ms 1 405 0.00 MB/sec execute 8 sec latency 15529.739 ms 1 405 0.00 MB/sec execute 9 sec latency 16529.982 ms 1 405 0.00 MB/sec execute 10 sec latency 17533.416 ms 1 405 0.00 MB/sec execute 11 sec latency 18534.526 ms 1 405 0.00 MB/sec execute 12 sec latency 19539.957 ms 1 405 0.00 MB/sec execute 13 sec latency 20541.089 ms 1 405 0.00 MB/sec execute 14 sec latency 21541.330 ms 1 405 0.00 MB/sec execute 15 sec latency 22541.578 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 405 0.00 MB/sec execute 16 sec latency 23541.994 ms 1 405 0.00 MB/sec execute 17 sec latency 24542.227 ms 1 405 0.00 MB/sec execute 18 sec latency 25542.438 ms 1 405 0.00 MB/sec execute 19 sec latency 26542.657 ms 1 405 0.00 MB/sec execute 20 sec latency 27543.460 ms 1 405 0.00 MB/sec execute 21 sec latency 28543.758 ms 1 405 0.00 MB/sec execute 22 sec latency 29544.742 ms 1 405 0.00 MB/sec execute 23 sec latency 30544.968 ms 1 405 0.00 MB/sec execute 24 sec latency 31545.426 ms 1 405 0.00 MB/sec execute 25 sec latency 32546.441 ms 1 405 0.00 MB/sec execute 26 sec latency 33546.956 ms 1 405 0.00 MB/sec execute 27 sec latency 34547.862 ms 1 405 0.00 MB/sec execute 28 sec latency 35550.057 ms 1 405 0.00 MB/sec execute 29 sec latency 36550.484 ms oleg131-server: oleg131-server.virtnet: executing set_default_debug -1 all 1 405 0.00 MB/sec execute 30 sec latency 37562.477 ms pdsh@oleg131-client: oleg131-server: ssh exited with exit code 1 1 405 0.00 MB/sec execute 31 sec latency 38573.809 ms 1 405 0.00 MB/sec execute 32 sec latency 39575.218 ms Started lustre-MDT0000 13:22:30 (1780334550) targets are mounted 13:22:30 (1780334550) facet_failover done 1 405 0.00 MB/sec execute 33 sec latency 40575.614 ms 1 438 0.03 MB/sec execute 34 sec latency 40767.188 ms 1 473 0.06 MB/sec execute 35 sec latency 127.938 ms 1 507 0.09 MB/sec execute 36 sec latency 169.696 ms oleg131-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1 575 0.14 MB/sec execute 37 sec latency 133.093 ms 1 639 0.18 MB/sec execute 38 sec latency 101.579 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 686 0.17 MB/sec execute 39 sec latency 127.382 ms 1 721 0.17 MB/sec execute 40 sec latency 103.921 ms 1 764 0.17 MB/sec execute 41 sec latency 106.421 ms 1 796 0.17 MB/sec execute 42 sec latency 109.591 ms 1 848 0.17 MB/sec execute 43 sec latency 90.310 ms 1 884 0.17 MB/sec execute 44 sec latency 90.793 ms 1 885 0.16 MB/sec execute 45 sec latency 1077.958 ms 1 914 0.16 MB/sec execute 46 sec latency 297.786 ms 1 969 0.16 MB/sec execute 47 sec latency 73.639 ms 1 1025 0.18 MB/sec execute 48 sec latency 91.702 ms 1 1074 0.17 MB/sec execute 49 sec latency 83.791 ms 1 1121 0.17 MB/sec execute 50 sec latency 79.983 ms 1 1145 0.17 MB/sec execute 51 sec latency 129.467 ms 1 1177 0.17 MB/sec execute 52 sec latency 151.873 ms 1 1225 0.16 MB/sec execute 53 sec latency 90.115 ms 1 1271 0.16 MB/sec execute 54 sec latency 108.351 ms dbench killed by signal 15 stopping dbench on /mnt/lustre at Mon Jun 1 13:22:52 EDT 2026 with return code 0 67088 pts/0 S+ 0:00 dbench -c client.txt 1 -D /mnt/lustre2/d26.replay-dual/run_dbench -t 100 killed dbench main pid 67088 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished