== replay-dual test 26: dbench and tar with mds failover ========================================================== 10:58:21 (1786978701) Starting client oleg257-client.virtnet: -o user_xattr,flock 192.168.202.157@tcp:/lustre /mnt/lustre Started clients oleg257-client.virtnet: 192.168.202.157@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 45151 Started dbench loop with 45152 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 2210688 2176 2206464 1% /mnt/lustre[MDT:0] lustre-OST0000_UUID 3771392 21504 3730432 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3771392 2048 3762176 1% /mnt/lustre[OST:1] filesystem_summary: 7542784 23552 7492608 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 17 10:58:28 EDT 2026 waiting for dbench pid 45221 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 23 0.59 MB/sec warmup 1 sec latency 26.817 ms 1 48 0.98 MB/sec warmup 2 sec latency 336.576 ms 1 71 1.05 MB/sec warmup 3 sec latency 302.158 ms 1 114 1.31 MB/sec warmup 4 sec latency 304.301 ms 1 141 1.20 MB/sec warmup 5 sec latency 156.720 ms 1 165 1.13 MB/sec warmup 6 sec latency 188.840 ms test_26 fail mds1 1 times 1 184 1.05 MB/sec warmup 7 sec latency 265.459 ms 1 199 0.98 MB/sec warmup 8 sec latency 254.938 ms 1 224 0.96 MB/sec warmup 9 sec latency 163.849 ms Failing mds1 on oleg257-server 1 261 0.98 MB/sec warmup 10 sec latency 133.987 ms Stopping /mnt/lustre-mds1 (opts:) on oleg257-server 1 289 0.97 MB/sec warmup 11 sec latency 140.632 ms 1 304 0.93 MB/sec warmup 12 sec latency 780.479 ms 1 304 0.86 MB/sec warmup 13 sec latency 1787.018 ms 10:58:42 (1786978722) shut down 1 304 0.80 MB/sec warmup 14 sec latency 2787.830 ms facet: mds1 facet_host: oleg257-server facet_failover_host: oleg257-server 1 304 0.75 MB/sec warmup 15 sec latency 3788.701 ms 1 304 0.70 MB/sec warmup 16 sec latency 4788.989 ms 1 304 0.66 MB/sec warmup 17 sec latency 5790.353 ms 1 304 0.62 MB/sec warmup 18 sec latency 6790.762 ms 1 304 0.59 MB/sec warmup 19 sec latency 7791.078 ms 1 304 0.00 MB/sec execute 1 sec latency 9796.887 ms 1 304 0.00 MB/sec execute 2 sec latency 10797.074 ms 1 304 0.00 MB/sec execute 3 sec latency 11800.229 ms 1 304 0.00 MB/sec execute 4 sec latency 12803.072 ms Failover mds1 to oleg257-server mount facets: mds1 1 304 0.00 MB/sec execute 5 sec latency 13803.459 ms 1 304 0.00 MB/sec execute 6 sec latency 14803.980 ms 1 304 0.00 MB/sec execute 7 sec latency 15807.921 ms 1 304 0.00 MB/sec execute 8 sec latency 16808.879 ms 1 304 0.00 MB/sec execute 9 sec latency 17810.417 ms 1 304 0.00 MB/sec execute 10 sec latency 18811.210 ms Start mds1: mount -t lustre -o localrecov lustre-mdt1/mdt1 /mnt/lustre-mds1 1 304 0.00 MB/sec execute 11 sec latency 19811.713 ms 1 304 0.00 MB/sec execute 12 sec latency 20812.359 ms 1 304 0.00 MB/sec execute 13 sec latency 21812.803 ms 1 304 0.00 MB/sec execute 14 sec latency 22813.093 ms 1 304 0.00 MB/sec execute 15 sec latency 23816.562 ms 1 304 0.00 MB/sec execute 16 sec latency 24818.775 ms 1 304 0.00 MB/sec execute 17 sec latency 25820.238 ms 1 304 0.00 MB/sec execute 18 sec latency 26822.419 ms 1 304 0.00 MB/sec execute 19 sec latency 27822.648 ms 1 304 0.00 MB/sec execute 20 sec latency 28822.956 ms 1 304 0.00 MB/sec execute 21 sec latency 29825.317 ms 1 304 0.00 MB/sec execute 22 sec latency 30826.381 ms 1 304 0.00 MB/sec execute 23 sec latency 31827.648 ms 1 304 0.00 MB/sec execute 24 sec latency 32827.923 ms 1 304 0.00 MB/sec execute 25 sec latency 33828.876 ms 1 304 0.00 MB/sec execute 26 sec latency 34829.919 ms 1 304 0.00 MB/sec execute 27 sec latency 35830.132 ms oleg257-server: oleg257-server.virtnet: executing set_default_debug -1 all 1 304 0.00 MB/sec execute 28 sec latency 36831.235 ms 1 304 0.00 MB/sec execute 29 sec latency 37833.771 ms pdsh@oleg257-client: oleg257-server: ssh exited with exit code 1 1 304 0.00 MB/sec execute 30 sec latency 38837.172 ms Started lustre-MDT0000 10:59:19 (1786978759) targets are mounted 10:59:19 (1786978759) facet_failover done 1 304 0.00 MB/sec execute 31 sec latency 39837.518 ms 1 326 0.02 MB/sec execute 32 sec latency 39903.066 ms 1 350 0.04 MB/sec execute 33 sec latency 198.604 ms 1 389 0.08 MB/sec execute 34 sec latency 162.707 ms 1 425 0.11 MB/sec execute 35 sec latency 148.428 ms 1 458 0.13 MB/sec execute 36 sec latency 146.514 ms 1 485 0.15 MB/sec execute 37 sec latency 180.107 ms 1 510 0.17 MB/sec execute 38 sec latency 180.935 ms oleg257-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 542 0.20 MB/sec execute 39 sec latency 186.447 ms 1 608 0.24 MB/sec execute 40 sec latency 166.862 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 651 0.24 MB/sec execute 41 sec latency 146.116 ms 1 671 0.24 MB/sec execute 42 sec latency 196.950 ms 1 692 0.23 MB/sec execute 43 sec latency 180.525 ms 1 721 0.23 MB/sec execute 44 sec latency 222.371 ms 1 740 0.22 MB/sec execute 45 sec latency 294.357 ms 1 786 0.22 MB/sec execute 46 sec latency 89.255 ms 1 806 0.22 MB/sec execute 47 sec latency 147.260 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 2210560 2304 2206208 1% /mnt/lustre[MDT:0] lustre-OST0000_UUID 3771392 43008 3681280 2% /mnt/lustre[OST:0] lustre-OST0001_UUID 3771392 7168 3731456 1% /mnt/lustre[OST:1] filesystem_summary: 7542784 50176 7412736 1% /mnt/lustre 1 848 0.22 MB/sec execute 48 sec latency 131.880 ms 1 873 0.21 MB/sec execute 49 sec latency 216.262 ms 1 897 0.21 MB/sec execute 50 sec latency 230.427 ms 1 921 0.21 MB/sec execute 51 sec latency 134.684 ms 1 965 0.20 MB/sec execute 52 sec latency 100.269 ms 1 988 0.20 MB/sec execute 53 sec latency 228.627 ms test_26 fail mds1 2 times 1 1041 0.22 MB/sec execute 54 sec latency 152.261 ms 1 1076 0.21 MB/sec execute 55 sec latency 126.348 ms 1 1118 0.21 MB/sec execute 56 sec latency 115.311 ms Failing mds1 on oleg257-server 1 1146 0.21 MB/sec execute 57 sec latency 127.447 ms Stopping /mnt/lustre-mds1 (opts:) on oleg257-server 1 1173 0.20 MB/sec execute 58 sec latency 163.955 ms 1 1206 0.20 MB/sec execute 59 sec latency 96.203 ms 1 1207 0.20 MB/sec execute 60 sec latency 994.841 ms 1 1207 0.19 MB/sec execute 61 sec latency 1995.747 ms 1 1207 0.19 MB/sec execute 62 sec latency 2995.989 ms 10:59:51 (1786978791) shut down facet: mds1 facet_host: oleg257-server facet_failover_host: oleg257-server 1 1207 0.19 MB/sec execute 63 sec latency 3997.271 ms 1 1207 0.18 MB/sec execute 64 sec latency 4998.124 ms 1 1207 0.18 MB/sec execute 65 sec latency 5999.729 ms 1 1207 0.18 MB/sec execute 66 sec latency 7000.066 ms 1 1207 0.18 MB/sec execute 67 sec latency 8001.547 ms 1 1207 0.17 MB/sec execute 68 sec latency 9003.441 ms 1 1207 0.17 MB/sec execute 69 sec latency 10005.283 ms 1 1207 0.17 MB/sec execute 70 sec latency 11005.604 ms 1 1207 0.17 MB/sec execute 71 sec latency 12007.442 ms 1 1207 0.16 MB/sec execute 72 sec latency 13007.950 ms Failover mds1 to oleg257-server 1 1207 0.16 MB/sec execute 73 sec latency 14009.080 ms mount facets: mds1 1 1207 0.16 MB/sec execute 74 sec latency 15009.404 ms 1 1207 0.16 MB/sec execute 75 sec latency 16009.767 ms 1 1207 0.16 MB/sec execute 76 sec latency 17010.031 ms 1 1207 0.15 MB/sec execute 77 sec latency 18010.600 ms Start mds1: mount -t lustre -o localrecov lustre-mdt1/mdt1 /mnt/lustre-mds1 1 1207 0.15 MB/sec execute 78 sec latency 19025.689 ms 1 1207 0.15 MB/sec execute 79 sec latency 20031.335 ms 1 1207 0.15 MB/sec execute 80 sec latency 21031.617 ms 1 1207 0.15 MB/sec execute 81 sec latency 22031.911 ms 1 1207 0.14 MB/sec execute 82 sec latency 23032.265 ms 1 1207 0.14 MB/sec execute 83 sec latency 24032.541 ms 1 1207 0.14 MB/sec execute 84 sec latency 25033.370 ms 1 1207 0.14 MB/sec execute 85 sec latency 26033.671 ms 1 1207 0.14 MB/sec execute 86 sec latency 27033.998 ms 1 1207 0.14 MB/sec execute 87 sec latency 28034.359 ms 1 1207 0.13 MB/sec execute 88 sec latency 29034.656 ms 1 1207 0.13 MB/sec execute 89 sec latency 30035.704 ms 1 1207 0.13 MB/sec execute 90 sec latency 31036.020 ms 1 1207 0.13 MB/sec execute 91 sec latency 32036.667 ms 1 1207 0.13 MB/sec execute 92 sec latency 33036.926 ms 1 1207 0.13 MB/sec execute 93 sec latency 34037.231 ms oleg257-server: oleg257-server.virtnet: executing set_default_debug -1 all 1 1207 0.13 MB/sec execute 94 sec latency 35037.843 ms pdsh@oleg257-client: oleg257-server: ssh exited with exit code 1 1 1207 0.12 MB/sec execute 95 sec latency 36038.082 ms Started lustre-MDT0000 1 1207 0.12 MB/sec execute 96 sec latency 37039.009 ms 11:00:24 (1786978824) targets are mounted 11:00:24 (1786978824) facet_failover done 1 1207 0.12 MB/sec execute 97 sec latency 38041.384 ms 1 1207 0.12 MB/sec execute 98 sec latency 39043.137 ms 1 1207 0.12 MB/sec execute 99 sec latency 40044.641 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 1 cleanup 106 sec 1 cleanup 107 sec 1 cleanup 108 sec 1 cleanup 109 sec 1 cleanup 110 sec 0 cleanup 111 sec Operation Count AvgLat MaxLat ---------------------------------------- NTCreateX 129 434.585 44326.989 Close 118 353.003 39903.030 Rename 8 99.816 163.922 Unlink 13 31.809 52.678 Qpathinfo 75 29.061 128.651 Qfileinfo 55 2.985 19.733 Qfsinfo 28 5.639 34.910 Sfileinfo 27 70.957 133.282 Find 37 11.400 83.292 WriteX 266 16.291 61.843 ReadX 124 5.920 111.052 Flush 24 140.169 294.339 Throughput 0.119263 MB/sec 1 clients 1 procs max_latency=40044.641 ms stopping dbench on /mnt/lustre at Mon Aug 17 11:00:39 EDT 2026 with return code 0 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished oleg257-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 17 11:00:48 EDT 2026 waiting for dbench pid 47179 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 19 0.33 MB/sec warmup 1 sec latency 27.720 ms 1 67 1.47 MB/sec warmup 2 sec latency 160.590 ms 1 111 1.75 MB/sec warmup 3 sec latency 235.394 ms 1 137 1.51 MB/sec warmup 4 sec latency 318.433 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 2210560 2560 2205952 1% /mnt/lustre[MDT:0] lustre-OST0000_UUID 3771392 37888 3695616 2% /mnt/lustre[OST:0] lustre-OST0001_UUID 3771392 5120 3725312 1% /mnt/lustre[OST:1] filesystem_summary: 7542784 43008 7420928 1% /mnt/lustre 1 152 1.28 MB/sec warmup 5 sec latency 334.789 ms 1 173 1.18 MB/sec warmup 6 sec latency 223.988 ms 1 197 1.12 MB/sec warmup 7 sec latency 242.322 ms 1 223 1.08 MB/sec warmup 8 sec latency 182.306 ms 1 252 1.06 MB/sec warmup 9 sec latency 212.974 ms 1 287 1.07 MB/sec warmup 10 sec latency 144.889 ms 1 316 1.04 MB/sec warmup 11 sec latency 152.119 ms test_26 fail mds1 3 times 1 346 1.03 MB/sec warmup 12 sec latency 188.881 ms 1 365 1.00 MB/sec warmup 13 sec latency 249.508 ms 1 382 0.97 MB/sec warmup 14 sec latency 316.361 ms Failing mds1 on oleg257-server 1 412 0.97 MB/sec warmup 15 sec latency 201.632 ms Stopping /mnt/lustre-mds1 (opts:) on oleg257-server 1 437 0.96 MB/sec warmup 16 sec latency 174.230 ms 1 469 0.96 MB/sec warmup 17 sec latency 215.383 ms 1 469 0.91 MB/sec warmup 18 sec latency 1216.134 ms 1 469 0.86 MB/sec warmup 19 sec latency 2218.365 ms 11:01:08 (1786978868) shut down facet: mds1 facet_host: oleg257-server facet_failover_host: oleg257-server 1 469 0.00 MB/sec execute 1 sec latency 4220.711 ms 1 469 0.00 MB/sec execute 2 sec latency 5220.989 ms 1 469 0.00 MB/sec execute 3 sec latency 6221.729 ms 1 469 0.00 MB/sec execute 4 sec latency 7222.165 ms 1 469 0.00 MB/sec execute 5 sec latency 8222.380 ms 1 469 0.00 MB/sec execute 6 sec latency 9222.717 ms 1 469 0.00 MB/sec execute 7 sec latency 10223.929 ms 1 469 0.00 MB/sec execute 8 sec latency 11224.371 ms 1 469 0.00 MB/sec execute 9 sec latency 12225.512 ms 1 469 0.00 MB/sec execute 10 sec latency 13225.752 ms Failover mds1 to oleg257-server mount facets: mds1 1 469 0.00 MB/sec execute 11 sec latency 14226.171 ms 1 469 0.00 MB/sec execute 12 sec latency 15226.449 ms 1 469 0.00 MB/sec execute 13 sec latency 16226.731 ms 1 469 0.00 MB/sec execute 14 sec latency 17227.042 ms 1 469 0.00 MB/sec execute 15 sec latency 18227.321 ms Start mds1: mount -t lustre -o localrecov lustre-mdt1/mdt1 /mnt/lustre-mds1 1 469 0.00 MB/sec execute 16 sec latency 19234.182 ms 1 469 0.00 MB/sec execute 17 sec latency 20234.933 ms 1 469 0.00 MB/sec execute 18 sec latency 21235.234 ms 1 469 0.00 MB/sec execute 19 sec latency 22235.547 ms 1 469 0.00 MB/sec execute 20 sec latency 23235.865 ms 1 469 0.00 MB/sec execute 21 sec latency 24236.143 ms 1 469 0.00 MB/sec execute 22 sec latency 25236.541 ms 1 469 0.00 MB/sec execute 23 sec latency 26237.119 ms 1 469 0.00 MB/sec execute 24 sec latency 27237.547 ms 1 469 0.00 MB/sec execute 25 sec latency 28238.382 ms 1 469 0.00 MB/sec execute 26 sec latency 29239.471 ms 1 469 0.00 MB/sec execute 27 sec latency 30240.978 ms 1 469 0.00 MB/sec execute 28 sec latency 31241.310 ms 1 469 0.00 MB/sec execute 29 sec latency 32241.906 ms 1 469 0.00 MB/sec execute 30 sec latency 33242.166 ms 1 469 0.00 MB/sec execute 31 sec latency 34242.401 ms 1 469 0.00 MB/sec execute 32 sec latency 35243.433 ms oleg257-server: oleg257-server.virtnet: executing set_default_debug -1 all 1 469 0.00 MB/sec execute 33 sec latency 36243.941 ms pdsh@oleg257-client: oleg257-server: ssh exited with exit code 1 1 469 0.00 MB/sec execute 34 sec latency 37244.703 ms Started lustre-MDT0000 11:01:43 (1786978903) targets are mounted 11:01:43 (1786978903) facet_failover done 1 469 0.00 MB/sec execute 35 sec latency 38244.956 ms 1 469 0.00 MB/sec execute 36 sec latency 39245.203 ms 1 469 0.00 MB/sec execute 37 sec latency 40245.419 ms 1 470 0.00 MB/sec execute 38 sec latency 41237.420 ms 1 503 0.03 MB/sec execute 39 sec latency 148.158 ms 1 542 0.07 MB/sec execute 40 sec latency 160.120 ms 1 608 0.11 MB/sec execute 41 sec latency 139.049 ms 1 653 0.11 MB/sec execute 42 sec latency 187.799 ms 1 674 0.11 MB/sec execute 43 sec latency 243.719 ms oleg257-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 705 0.11 MB/sec execute 44 sec latency 164.343 ms 1 723 0.11 MB/sec execute 45 sec latency 304.388 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 743 0.11 MB/sec execute 46 sec latency 211.281 ms 1 778 0.10 MB/sec execute 47 sec latency 143.646 ms 1 794 0.10 MB/sec execute 48 sec latency 372.755 ms 1 814 0.10 MB/sec execute 49 sec latency 160.648 ms 1 874 0.10 MB/sec execute 50 sec latency 199.348 ms 1 892 0.10 MB/sec execute 51 sec latency 169.979 ms 1 918 0.10 MB/sec execute 52 sec latency 250.355 ms 1 960 0.10 MB/sec execute 53 sec latency 128.209 ms 1 983 0.10 MB/sec execute 54 sec latency 324.996 ms 1 1024 0.11 MB/sec execute 55 sec latency 129.805 ms 1 1082 0.12 MB/sec execute 56 sec latency 80.851 ms 1 1130 0.11 MB/sec execute 57 sec latency 112.910 ms 1 1155 0.11 MB/sec execute 58 sec latency 155.731 ms 1 1174 0.11 MB/sec execute 59 sec latency 186.711 ms 1 1201 0.11 MB/sec execute 60 sec latency 156.145 ms 1 1233 0.11 MB/sec execute 61 sec latency 99.994 ms 1 1269 0.11 MB/sec execute 62 sec latency 128.926 ms 1 1392 0.15 MB/sec execute 63 sec latency 143.692 ms dbench killed by signal 15 stopping dbench on /mnt/lustre at Mon Aug 17 11:02:12 EDT 2026 with return code 0 1 1418 0.15 MB/sec execute 64 sec latency 159.203 ms 47179 pts/0 S+ 0:00 dbench -c client.txt 1 -D /mnt/lustre2/d26.replay-dual/run_dbench -t 100 killed dbench main pid 47179 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished