== replay-dual test 26: dbench and tar with mds failover ========================================================== 08:24:20 (1786019060) Starting client oleg159-client.virtnet: -o user_xattr,flock 192.168.201.159@tcp:/lustre /mnt/lustre Started clients oleg159-client.virtnet: 192.168.201.159@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 44943 Started dbench loop with 44944 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 2210176 2048 2206080 1% /mnt/lustre[MDT:0] lustre-OST0000_UUID 3771392 2048 3762176 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3771392 14336 3737600 1% /mnt/lustre[OST:1] filesystem_summary: 7542784 16384 7499776 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 6 08:24:26 EDT 2026 waiting for dbench pid 45015 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 14 0.00 MB/sec warmup 1 sec latency 32.831 ms 1 51 1.04 MB/sec warmup 2 sec latency 160.669 ms 1 96 1.43 MB/sec warmup 3 sec latency 210.333 ms 1 139 1.50 MB/sec warmup 4 sec latency 145.930 ms test_26 fail mds1 1 times 1 168 1.36 MB/sec warmup 5 sec latency 177.190 ms 1 189 1.26 MB/sec warmup 6 sec latency 243.370 ms Failing mds1 on oleg159-server 1 207 1.15 MB/sec warmup 7 sec latency 230.105 ms 1 245 1.16 MB/sec warmup 8 sec latency 235.875 ms Stopping /mnt/lustre-mds1 (opts:) on oleg159-server 1 274 1.13 MB/sec warmup 9 sec latency 149.612 ms 1 286 1.07 MB/sec warmup 10 sec latency 639.586 ms 1 286 0.97 MB/sec warmup 11 sec latency 1640.612 ms 1 286 0.89 MB/sec warmup 12 sec latency 2640.978 ms 08:24:39 (1786019079) shut down facet: mds1 facet_host: oleg159-server facet_failover_host: oleg159-server 1 286 0.82 MB/sec warmup 13 sec latency 3641.238 ms 1 286 0.76 MB/sec warmup 14 sec latency 4642.115 ms 1 286 0.71 MB/sec warmup 15 sec latency 5642.343 ms 1 286 0.67 MB/sec warmup 16 sec latency 6642.613 ms 1 286 0.63 MB/sec warmup 17 sec latency 7642.831 ms 1 286 0.59 MB/sec warmup 18 sec latency 8643.540 ms 1 286 0.56 MB/sec warmup 19 sec latency 9646.420 ms 1 286 0.00 MB/sec execute 1 sec latency 11647.765 ms 1 286 0.00 MB/sec execute 2 sec latency 12649.228 ms Failover mds1 to oleg159-server mount facets: mds1 1 286 0.00 MB/sec execute 3 sec latency 13663.992 ms 1 286 0.00 MB/sec execute 4 sec latency 14664.254 ms 1 286 0.00 MB/sec execute 5 sec latency 15664.656 ms 1 286 0.00 MB/sec execute 6 sec latency 16669.159 ms Start mds1: mount -t lustre -o localrecov lustre-mdt1/mdt1 /mnt/lustre-mds1 1 286 0.00 MB/sec execute 7 sec latency 17669.939 ms 1 286 0.00 MB/sec execute 8 sec latency 18670.153 ms 1 286 0.00 MB/sec execute 9 sec latency 19670.399 ms 1 286 0.00 MB/sec execute 10 sec latency 20672.106 ms 1 286 0.00 MB/sec execute 11 sec latency 21674.313 ms 1 286 0.00 MB/sec execute 12 sec latency 22674.699 ms 1 286 0.00 MB/sec execute 13 sec latency 23675.267 ms 1 286 0.00 MB/sec execute 14 sec latency 24676.150 ms 1 286 0.00 MB/sec execute 15 sec latency 25677.029 ms 1 286 0.00 MB/sec execute 16 sec latency 26677.366 ms 1 286 0.00 MB/sec execute 17 sec latency 27677.637 ms 1 286 0.00 MB/sec execute 18 sec latency 28677.925 ms 1 286 0.00 MB/sec execute 19 sec latency 29679.745 ms 1 286 0.00 MB/sec execute 20 sec latency 30680.434 ms 1 286 0.00 MB/sec execute 21 sec latency 31681.717 ms 1 286 0.00 MB/sec execute 22 sec latency 32682.243 ms oleg159-server: oleg159-server.virtnet: executing set_default_debug -1 all 1 286 0.00 MB/sec execute 23 sec latency 33683.600 ms pdsh@oleg159-client: oleg159-server: ssh exited with exit code 1 1 286 0.00 MB/sec execute 24 sec latency 34683.808 ms Started lustre-MDT0000 08:25:11 (1786019111) targets are mounted 08:25:11 (1786019111) facet_failover done 1 286 0.00 MB/sec execute 25 sec latency 35684.384 ms 1 286 0.00 MB/sec execute 26 sec latency 36685.838 ms 1 286 0.00 MB/sec execute 27 sec latency 37688.516 ms 1 286 0.00 MB/sec execute 28 sec latency 38695.023 ms 1 297 0.01 MB/sec execute 29 sec latency 39004.230 ms 1 323 0.03 MB/sec execute 30 sec latency 164.395 ms 1 349 0.06 MB/sec execute 31 sec latency 202.427 ms 1 381 0.09 MB/sec execute 32 sec latency 141.725 ms 1 413 0.12 MB/sec execute 33 sec latency 152.649 ms oleg159-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 445 0.15 MB/sec execute 34 sec latency 182.400 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 493 0.19 MB/sec execute 35 sec latency 92.228 ms 1 518 0.20 MB/sec execute 36 sec latency 179.382 ms 1 588 0.26 MB/sec execute 37 sec latency 197.452 ms 1 664 0.27 MB/sec execute 38 sec latency 95.591 ms 1 678 0.27 MB/sec execute 39 sec latency 336.399 ms 1 728 0.26 MB/sec execute 40 sec latency 122.692 ms 1 765 0.26 MB/sec execute 41 sec latency 120.271 ms 1 789 0.26 MB/sec execute 42 sec latency 153.349 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 2210560 2304 2206208 1% /mnt/lustre[MDT:0] lustre-OST0000_UUID 3771392 11264 3702784 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3771392 35840 3699712 1% /mnt/lustre[OST:1] filesystem_summary: 7542784 47104 7402496 1% /mnt/lustre 1 801 0.25 MB/sec execute 43 sec latency 368.562 ms 1 823 0.24 MB/sec execute 44 sec latency 143.909 ms 1 863 0.24 MB/sec execute 45 sec latency 185.335 ms 1 885 0.24 MB/sec execute 46 sec latency 281.331 ms 1 907 0.23 MB/sec execute 47 sec latency 148.208 ms 1 926 0.23 MB/sec execute 48 sec latency 353.984 ms 1 957 0.23 MB/sec execute 49 sec latency 155.282 ms test_26 fail mds1 2 times 1 979 0.22 MB/sec execute 50 sec latency 266.157 ms 1 990 0.22 MB/sec execute 51 sec latency 334.771 ms Failing mds1 on oleg159-server 1 1047 0.23 MB/sec execute 52 sec latency 123.228 ms Stopping /mnt/lustre-mds1 (opts:) on oleg159-server 1 1079 0.23 MB/sec execute 53 sec latency 145.930 ms 1 1127 0.23 MB/sec execute 54 sec latency 98.657 ms 1 1128 0.22 MB/sec execute 55 sec latency 988.993 ms 1 1128 0.22 MB/sec execute 56 sec latency 1990.071 ms 1 1128 0.22 MB/sec execute 57 sec latency 2993.777 ms 08:25:44 (1786019144) shut down facet: mds1 facet_host: oleg159-server facet_failover_host: oleg159-server 1 1128 0.21 MB/sec execute 58 sec latency 3994.203 ms 1 1128 0.21 MB/sec execute 59 sec latency 4994.398 ms 1 1128 0.20 MB/sec execute 60 sec latency 5994.738 ms 1 1128 0.20 MB/sec execute 61 sec latency 6995.022 ms 1 1128 0.20 MB/sec execute 62 sec latency 7995.700 ms 1 1128 0.19 MB/sec execute 63 sec latency 8996.886 ms 1 1128 0.19 MB/sec execute 64 sec latency 9998.035 ms 1 1128 0.19 MB/sec execute 65 sec latency 10998.743 ms 1 1128 0.19 MB/sec execute 66 sec latency 11999.269 ms 1 1128 0.18 MB/sec execute 67 sec latency 12999.617 ms Failover mds1 to oleg159-server 1 1128 0.18 MB/sec execute 68 sec latency 14009.299 ms mount facets: mds1 1 1128 0.18 MB/sec execute 69 sec latency 15009.812 ms 1 1128 0.18 MB/sec execute 70 sec latency 16011.510 ms 1 1128 0.17 MB/sec execute 71 sec latency 17012.303 ms 1 1128 0.17 MB/sec execute 72 sec latency 18015.944 ms Start mds1: mount -t lustre -o localrecov lustre-mdt1/mdt1 /mnt/lustre-mds1 1 1128 0.17 MB/sec execute 73 sec latency 19016.790 ms 1 1128 0.17 MB/sec execute 74 sec latency 20018.337 ms 1 1128 0.16 MB/sec execute 75 sec latency 21027.053 ms 1 1128 0.16 MB/sec execute 76 sec latency 22027.780 ms 1 1128 0.16 MB/sec execute 77 sec latency 23028.022 ms 1 1128 0.16 MB/sec execute 78 sec latency 24028.217 ms 1 1128 0.16 MB/sec execute 79 sec latency 25029.085 ms 1 1128 0.15 MB/sec execute 80 sec latency 26029.290 ms oleg159-server: oleg159-server.virtnet: executing set_default_debug -1 all 1 1128 0.15 MB/sec execute 81 sec latency 27030.578 ms pdsh@oleg159-client: oleg159-server: ssh exited with exit code 1 1 1128 0.15 MB/sec execute 82 sec latency 28043.136 ms 1 1128 0.15 MB/sec execute 83 sec latency 29043.427 ms Started lustre-MDT0000 08:26:10 (1786019170) targets are mounted 08:26:10 (1786019170) facet_failover done 1 1128 0.15 MB/sec execute 84 sec latency 30043.789 ms 1 1128 0.14 MB/sec execute 85 sec latency 31043.952 ms 1 1128 0.14 MB/sec execute 86 sec latency 32044.152 ms 1 1128 0.14 MB/sec execute 87 sec latency 33044.406 ms 1 1128 0.14 MB/sec execute 88 sec latency 34044.726 ms 1 1128 0.14 MB/sec execute 89 sec latency 35044.981 ms 1 1128 0.14 MB/sec execute 90 sec latency 36045.345 ms 1 1128 0.13 MB/sec execute 91 sec latency 37046.129 ms 1 1128 0.13 MB/sec execute 92 sec latency 38046.672 ms 1 1128 0.13 MB/sec execute 93 sec latency 39047.028 ms 1 1128 0.13 MB/sec execute 94 sec latency 40047.696 ms 1 1128 0.13 MB/sec execute 95 sec latency 41047.973 ms 1 1134 0.13 MB/sec execute 96 sec latency 41803.884 ms 1 1155 0.13 MB/sec execute 97 sec latency 165.411 ms 1 1181 0.13 MB/sec execute 98 sec latency 147.394 ms 1 1208 0.12 MB/sec execute 99 sec latency 136.862 ms 1 cleanup 100 sec 1 cleanup 101 sec 1 cleanup 102 sec oleg159-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 cleanup 103 sec 1 cleanup 104 sec 0 cleanup 105 sec Operation Count AvgLat MaxLat ---------------------------------------- NTCreateX 137 90.414 402.887 Close 126 325.938 39004.167 Rename 9 131.532 266.131 Unlink 14 36.340 75.777 Qpathinfo 82 539.779 41803.868 Qfileinfo 58 2.256 9.470 Qfsinfo 28 6.132 28.047 Sfileinfo 29 78.054 185.323 Find 37 7.017 34.770 WriteX 278 15.272 127.357 ReadX 128 5.603 91.523 Flush 24 150.821 368.547 Throughput 0.124482 MB/sec 1 clients 1 procs max_latency=41803.884 ms stopping dbench on /mnt/lustre at Thu Aug 6 08:26:31 EDT 2026 with return code 0 mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished 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 Thu Aug 6 08:26:38 EDT 2026 waiting for dbench pid 46987 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 42 1.57 MB/sec warmup 1 sec latency 118.105 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 2210560 2560 2205952 1% /mnt/lustre[MDT:0] lustre-OST0000_UUID 3771392 19456 3724288 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3771392 53248 3700736 2% /mnt/lustre[OST:1] filesystem_summary: 7542784 72704 7425024 1% /mnt/lustre 1 91 2.09 MB/sec warmup 2 sec latency 145.387 ms 1 129 1.91 MB/sec warmup 3 sec latency 247.214 ms 1 156 1.63 MB/sec warmup 4 sec latency 236.741 ms 1 197 1.57 MB/sec warmup 5 sec latency 146.679 ms 1 239 1.52 MB/sec warmup 6 sec latency 103.619 ms 1 280 1.49 MB/sec warmup 7 sec latency 151.475 ms test_26 fail mds1 3 times 1 306 1.40 MB/sec warmup 8 sec latency 207.424 ms 1 331 1.33 MB/sec warmup 9 sec latency 243.203 ms Failing mds1 on oleg159-server 1 358 1.28 MB/sec warmup 10 sec latency 168.992 ms Stopping /mnt/lustre-mds1 (opts:) on oleg159-server 1 397 1.28 MB/sec warmup 11 sec latency 117.367 ms 1 413 1.21 MB/sec warmup 12 sec latency 552.686 ms 1 413 1.12 MB/sec warmup 13 sec latency 1556.516 ms 1 413 1.04 MB/sec warmup 14 sec latency 2556.796 ms 08:26:52 (1786019212) shut down facet: mds1 facet_host: oleg159-server facet_failover_host: oleg159-server 1 413 0.97 MB/sec warmup 15 sec latency 3557.622 ms 1 413 0.91 MB/sec warmup 16 sec latency 4558.254 ms 1 413 0.86 MB/sec warmup 17 sec latency 5562.901 ms 1 413 0.81 MB/sec warmup 18 sec latency 6563.629 ms 1 413 0.77 MB/sec warmup 19 sec latency 7564.363 ms 1 413 0.00 MB/sec execute 1 sec latency 9568.739 ms 1 413 0.00 MB/sec execute 2 sec latency 10569.016 ms 1 413 0.00 MB/sec execute 3 sec latency 11570.917 ms 1 413 0.00 MB/sec execute 4 sec latency 12571.124 ms Failover mds1 to oleg159-server mount facets: mds1 1 413 0.00 MB/sec execute 5 sec latency 13574.342 ms 1 413 0.00 MB/sec execute 6 sec latency 14575.438 ms 1 413 0.00 MB/sec execute 7 sec latency 15581.362 ms 1 413 0.00 MB/sec execute 8 sec latency 16581.535 ms 1 413 0.00 MB/sec execute 9 sec latency 17581.739 ms Start mds1: mount -t lustre -o localrecov lustre-mdt1/mdt1 /mnt/lustre-mds1 1 413 0.00 MB/sec execute 10 sec latency 18584.350 ms 1 413 0.00 MB/sec execute 11 sec latency 19586.516 ms 1 413 0.00 MB/sec execute 12 sec latency 20589.195 ms 1 413 0.00 MB/sec execute 13 sec latency 21589.998 ms 1 413 0.00 MB/sec execute 14 sec latency 22590.335 ms 1 413 0.00 MB/sec execute 15 sec latency 23590.560 ms 1 413 0.00 MB/sec execute 16 sec latency 24594.500 ms 1 413 0.00 MB/sec execute 17 sec latency 25595.041 ms 1 413 0.00 MB/sec execute 18 sec latency 26595.377 ms 1 413 0.00 MB/sec execute 19 sec latency 27595.605 ms 1 413 0.00 MB/sec execute 20 sec latency 28596.390 ms 1 413 0.00 MB/sec execute 21 sec latency 29597.894 ms 1 413 0.00 MB/sec execute 22 sec latency 30598.095 ms 1 413 0.00 MB/sec execute 23 sec latency 31598.405 ms 1 413 0.00 MB/sec execute 24 sec latency 32601.223 ms 1 413 0.00 MB/sec execute 25 sec latency 33602.398 ms 1 413 0.00 MB/sec execute 26 sec latency 34602.722 ms oleg159-server: oleg159-server.virtnet: executing set_default_debug -1 all 1 413 0.00 MB/sec execute 27 sec latency 35603.659 ms 1 413 0.00 MB/sec execute 28 sec latency 36603.893 ms pdsh@oleg159-client: oleg159-server: ssh exited with exit code 1 1 413 0.00 MB/sec execute 29 sec latency 37604.426 ms Started lustre-MDT0000 08:27:27 (1786019247) targets are mounted 08:27:27 (1786019247) facet_failover done 1 413 0.00 MB/sec execute 30 sec latency 38608.219 ms 1 413 0.00 MB/sec execute 31 sec latency 39609.319 ms 1 413 0.00 MB/sec execute 32 sec latency 40609.497 ms 1 413 0.00 MB/sec execute 33 sec latency 41611.690 ms 1 421 0.01 MB/sec execute 34 sec latency 42468.104 ms 1 445 0.03 MB/sec execute 35 sec latency 334.213 ms 1 477 0.06 MB/sec execute 36 sec latency 211.504 ms 1 513 0.08 MB/sec execute 37 sec latency 137.704 ms 1 551 0.12 MB/sec execute 38 sec latency 158.656 ms 1 615 0.16 MB/sec execute 39 sec latency 141.580 ms oleg159-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 664 0.16 MB/sec execute 40 sec latency 185.588 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 689 0.16 MB/sec execute 41 sec latency 315.260 ms 1 710 0.16 MB/sec execute 42 sec latency 180.799 ms 1 730 0.16 MB/sec execute 43 sec latency 315.611 ms 1 765 0.15 MB/sec execute 44 sec latency 106.005 ms 1 794 0.15 MB/sec execute 45 sec latency 193.627 ms 1 823 0.15 MB/sec execute 46 sec latency 141.714 ms 1 873 0.15 MB/sec execute 47 sec latency 216.537 ms 1 903 0.15 MB/sec execute 48 sec latency 275.212 ms 1 936 0.15 MB/sec execute 49 sec latency 160.043 ms 1 970 0.14 MB/sec execute 50 sec latency 132.650 ms 1 1009 0.15 MB/sec execute 51 sec latency 234.348 ms 1 1071 0.16 MB/sec execute 52 sec latency 103.002 ms 1 1127 0.16 MB/sec execute 53 sec latency 97.665 ms 1 1163 0.16 MB/sec execute 54 sec latency 114.642 ms 1 1207 0.15 MB/sec execute 55 sec latency 83.322 ms dbench killed by signal 15 stopping dbench on /mnt/lustre at Thu Aug 6 08:27:54 EDT 2026 with return code 0 1 1244 0.15 MB/sec execute 56 sec latency 180.355 ms 46987 pts/0 S+ 0:00 dbench -c client.txt 1 -D /mnt/lustre2/d26.replay-dual/run_dbench -t 100 killed dbench main pid 46987 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished