== replay-dual test 26: dbench and tar with mds failover ========================================================== 02:09:52 (1784095792) Starting client oleg342-client.virtnet: -o user_xattr,flock 192.168.203.142@tcp:/lustre /mnt/lustre Started clients oleg342-client.virtnet: 192.168.203.142@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 65489 Started dbench loop with 65490 striped dir -i0 -c2 -H crush /mnt/lustre/d26.replay-dual/run_tar striped dir -i0 -c2 -H all_char /mnt/lustre2/d26.replay-dual/run_dbench 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 Wed Jul 15 02:09:55 EDT 2026 waiting for dbench pid 65533 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 UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 1992 1269312 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 1796 1269508 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 1564 3605456 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 26120 3579684 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 27684 7185140 1% /mnt/lustre 1 96 4.32 MB/sec warmup 1 sec latency 52.755 ms 1 167 3.40 MB/sec warmup 2 sec latency 70.891 ms 1 231 2.96 MB/sec warmup 3 sec latency 223.838 ms 1 315 2.87 MB/sec warmup 4 sec latency 55.342 ms 1 413 2.92 MB/sec warmup 5 sec latency 52.452 ms 1 511 2.95 MB/sec warmup 6 sec latency 65.367 ms test_26 fail mds1 1 times Failing mds1 on oleg342-server 1 645 3.01 MB/sec warmup 7 sec latency 96.576 ms Stopping /mnt/lustre-mds1 (opts:) on oleg342-server 1 721 2.66 MB/sec warmup 8 sec latency 67.515 ms 1 806 2.38 MB/sec warmup 9 sec latency 51.471 ms 1 884 2.17 MB/sec warmup 10 sec latency 293.541 ms 1 933 1.98 MB/sec warmup 11 sec latency 468.310 ms 1 995 1.82 MB/sec warmup 12 sec latency 354.259 ms 1 995 1.68 MB/sec warmup 13 sec latency 1356.085 ms 1 995 1.56 MB/sec warmup 14 sec latency 2356.452 ms 1 995 1.46 MB/sec warmup 15 sec latency 3356.706 ms 02:10:10 (1784095810) shut down facet: mds1 facet_host: oleg342-server facet_failover_host: oleg342-server 1 995 1.37 MB/sec warmup 16 sec latency 4357.895 ms 1 995 1.29 MB/sec warmup 17 sec latency 5358.129 ms 1 995 1.22 MB/sec warmup 18 sec latency 6358.392 ms 1 995 1.15 MB/sec warmup 19 sec latency 7358.675 ms 1 995 0.00 MB/sec execute 1 sec latency 9361.622 ms 1 995 0.00 MB/sec execute 2 sec latency 10361.822 ms 1 995 0.00 MB/sec execute 3 sec latency 11362.248 ms 1 995 0.00 MB/sec execute 4 sec latency 12362.477 ms 1 995 0.00 MB/sec execute 5 sec latency 13362.692 ms Failover mds1 to oleg342-server mount facets: mds1 1 995 0.00 MB/sec execute 6 sec latency 14363.148 ms 1 995 0.00 MB/sec execute 7 sec latency 15363.410 ms 1 995 0.00 MB/sec execute 8 sec latency 16363.764 ms 1 995 0.00 MB/sec execute 9 sec latency 17363.984 ms 1 995 0.00 MB/sec execute 10 sec latency 18364.314 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 995 0.00 MB/sec execute 11 sec latency 19364.520 ms 1 995 0.00 MB/sec execute 12 sec latency 20364.991 ms 1 995 0.00 MB/sec execute 13 sec latency 21365.342 ms oleg342-server: oleg342-server.virtnet: executing set_default_debug -1 all pdsh@oleg342-client: oleg342-server: ssh exited with exit code 1 1 995 0.00 MB/sec execute 14 sec latency 22365.542 ms Started lustre-MDT0000 02:10:30 (1784095830) targets are mounted 02:10:30 (1784095830) facet_failover done 1 995 0.00 MB/sec execute 15 sec latency 23365.825 ms 1 995 0.00 MB/sec execute 16 sec latency 24366.174 ms 1 995 0.00 MB/sec execute 17 sec latency 25366.567 ms 1 996 0.00 MB/sec execute 18 sec latency 26362.749 ms 1 1086 0.05 MB/sec execute 19 sec latency 78.119 ms 1 1173 0.06 MB/sec execute 20 sec latency 84.323 ms oleg342-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 1244 0.06 MB/sec execute 21 sec latency 44.736 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 1418 0.19 MB/sec execute 22 sec latency 79.403 ms 1 1504 0.18 MB/sec execute 23 sec latency 132.739 ms 1 1619 0.18 MB/sec execute 24 sec latency 49.353 ms 1 1723 0.17 MB/sec execute 25 sec latency 58.829 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2252 1269052 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 2024 1269280 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 16568 3590088 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 42432 3563168 2% /mnt/lustre[OST:1] filesystem_summary: 7666232 59000 7153256 1% /mnt/lustre 1 1840 0.17 MB/sec execute 26 sec latency 52.002 ms 1 1965 0.17 MB/sec execute 27 sec latency 47.460 ms 1 2053 0.17 MB/sec execute 28 sec latency 56.189 ms 1 2098 0.16 MB/sec execute 29 sec latency 570.280 ms 1 2191 0.16 MB/sec execute 30 sec latency 59.123 ms 1 2331 0.19 MB/sec execute 31 sec latency 42.006 ms test_26 fail mds2 2 times 1 2394 0.19 MB/sec execute 32 sec latency 53.617 ms Failing mds2 on oleg342-server Stopping /mnt/lustre-mds2 (opts:) on oleg342-server 1 2477 0.21 MB/sec execute 33 sec latency 49.102 ms 1 2596 0.21 MB/sec execute 34 sec latency 65.953 ms 02:10:49 (1784095849) shut down facet: mds2 facet_host: oleg342-server facet_failover_host: oleg342-server 1 2880 0.29 MB/sec execute 35 sec latency 49.008 ms 1 3015 0.32 MB/sec execute 36 sec latency 43.552 ms 1 3329 0.36 MB/sec execute 37 sec latency 43.704 ms 1 3563 0.43 MB/sec execute 38 sec latency 33.849 ms 1 3699 0.43 MB/sec execute 39 sec latency 32.588 ms 1 3829 0.45 MB/sec execute 40 sec latency 37.786 ms 1 3932 0.44 MB/sec execute 41 sec latency 34.368 ms 1 4022 0.43 MB/sec execute 42 sec latency 51.986 ms 1 4083 0.42 MB/sec execute 43 sec latency 343.622 ms 1 4083 0.41 MB/sec execute 44 sec latency 1347.112 ms Failover mds2 to oleg342-server mount facets: mds2 1 4083 0.40 MB/sec execute 45 sec latency 2347.333 ms 1 4083 0.40 MB/sec execute 46 sec latency 3347.635 ms 1 4083 0.39 MB/sec execute 47 sec latency 4349.509 ms 1 4083 0.38 MB/sec execute 48 sec latency 5350.201 ms Start mds2: mount -t lustre -o localrecov /dev/mapper/mds2_flakey /mnt/lustre-mds2 1 4083 0.37 MB/sec execute 49 sec latency 6350.526 ms 1 4083 0.36 MB/sec execute 50 sec latency 7350.724 ms oleg342-server: oleg342-server.virtnet: executing set_default_debug -1 all 1 4083 0.36 MB/sec execute 51 sec latency 8351.224 ms pdsh@oleg342-client: oleg342-server: ssh exited with exit code 1 Started lustre-MDT0001 02:11:07 (1784095867) targets are mounted 02:11:07 (1784095867) facet_failover done 1 4083 0.35 MB/sec execute 52 sec latency 9351.474 ms 1 4083 0.34 MB/sec execute 53 sec latency 10351.891 ms 1 4083 0.34 MB/sec execute 54 sec latency 11352.038 ms 1 4083 0.33 MB/sec execute 55 sec latency 12352.176 ms 1 4180 0.32 MB/sec execute 56 sec latency 12479.117 ms 1 4281 0.32 MB/sec execute 57 sec latency 66.954 ms oleg342-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0001-mdc-*.mds_server_uuid 1475 0 mdc.lustre-MDT0001-mdc-*.mds_server_uuid in FULL state after 0 sec 1 4359 0.32 MB/sec execute 58 sec latency 57.931 ms 1 4458 0.32 MB/sec execute 59 sec latency 49.471 ms 1 4534 0.32 MB/sec execute 60 sec latency 57.936 ms 1 4632 0.33 MB/sec execute 61 sec latency 63.213 ms 1 4747 0.33 MB/sec execute 62 sec latency 45.397 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2728 1268576 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 2452 1268852 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 16800 3587572 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 51708 3551420 2% /mnt/lustre[OST:1] filesystem_summary: 7666232 68508 7138992 1% /mnt/lustre 1 4851 0.32 MB/sec execute 63 sec latency 46.413 ms 1 5023 0.36 MB/sec execute 64 sec latency 50.112 ms 1 5137 0.36 MB/sec execute 65 sec latency 53.648 ms 1 5235 0.35 MB/sec execute 66 sec latency 45.002 ms 1 5334 0.35 MB/sec execute 67 sec latency 52.094 ms test_26 fail mds1 3 times 1 5416 0.35 MB/sec execute 68 sec latency 44.457 ms Failing mds1 on oleg342-server Stopping /mnt/lustre-mds1 (opts:) on oleg342-server 1 5549 0.34 MB/sec execute 69 sec latency 51.026 ms 1 5660 0.34 MB/sec execute 70 sec latency 123.095 ms 02:11:25 (1784095885) shut down facet: mds1 facet_host: oleg342-server facet_failover_host: oleg342-server 1 5820 0.34 MB/sec execute 71 sec latency 82.712 ms 1 5820 0.33 MB/sec execute 72 sec latency 1082.952 ms 1 5820 0.33 MB/sec execute 73 sec latency 2083.248 ms 1 5820 0.32 MB/sec execute 74 sec latency 3083.418 ms 1 5820 0.32 MB/sec execute 75 sec latency 4083.614 ms 1 5820 0.32 MB/sec execute 76 sec latency 5083.868 ms 1 5820 0.31 MB/sec execute 77 sec latency 6084.053 ms 1 5820 0.31 MB/sec execute 78 sec latency 7085.835 ms 1 5820 0.30 MB/sec execute 79 sec latency 8086.054 ms 1 5820 0.30 MB/sec execute 80 sec latency 9086.233 ms Failover mds1 to oleg342-server mount facets: mds1 1 5820 0.30 MB/sec execute 81 sec latency 10086.457 ms 1 5820 0.29 MB/sec execute 82 sec latency 11086.700 ms 1 5820 0.29 MB/sec execute 83 sec latency 12087.241 ms 1 5820 0.29 MB/sec execute 84 sec latency 13087.428 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 5820 0.28 MB/sec execute 85 sec latency 14087.692 ms 1 5820 0.28 MB/sec execute 86 sec latency 15087.926 ms 1 5820 0.28 MB/sec execute 87 sec latency 16088.405 ms oleg342-server: oleg342-server.virtnet: executing set_default_debug -1 all pdsh@oleg342-client: oleg342-server: ssh exited with exit code 1 1 5820 0.27 MB/sec execute 88 sec latency 17088.738 ms Started lustre-MDT0000 02:11:43 (1784095903) targets are mounted 02:11:43 (1784095903) facet_failover done 1 5820 0.27 MB/sec execute 89 sec latency 18089.221 ms 1 5820 0.27 MB/sec execute 90 sec latency 19089.404 ms 1 5820 0.26 MB/sec execute 91 sec latency 20089.620 ms 1 5855 0.27 MB/sec execute 92 sec latency 20845.632 ms 1 5966 0.27 MB/sec execute 93 sec latency 34.310 ms oleg342-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 6060 0.28 MB/sec execute 94 sec latency 47.940 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 6308 0.31 MB/sec execute 95 sec latency 44.982 ms 1 6487 0.32 MB/sec execute 96 sec latency 51.629 ms 1 6756 0.32 MB/sec execute 97 sec latency 53.976 ms 1 6934 0.33 MB/sec execute 98 sec latency 40.403 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 3144 1268160 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 2892 1268412 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 17768 3586728 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 53592 3552476 2% /mnt/lustre[OST:1] filesystem_summary: 7666232 71360 7139204 1% /mnt/lustre 1 7139 0.36 MB/sec execute 99 sec latency 41.206 ms 1 cleanup 100 sec 1 cleanup 101 sec 0 cleanup 102 sec Operation Count AvgLat MaxLat ---------------------------------------- NTCreateX 1021 69.507 26362.731 Close 785 4.731 41.060 Rename 48 37.649 84.301 Unlink 174 11.411 24.740 Qpathinfo 998 19.724 12479.099 Qfileinfo 184 1.257 13.100 Qfsinfo 175 0.839 10.855 Sfileinfo 82 27.188 56.344 Find 383 5.109 30.502 WriteX 545 5.814 28.757 ReadX 1833 0.355 78.107 LockX 4 4.627 6.260 UnlockX 4 6.221 9.555 Flush 62 25.439 66.941 Throughput 0.359874 MB/sec 1 clients 1 procs max_latency=26362.749 ms stopping dbench on /mnt/lustre at Wed Jul 15 02:11:57 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 test_26 fail mds2 4 times looking for dbench program /usr/bin/dbench found dbench client file /usr/share/dbench/client.txt Failing mds2 on oleg342-server '/usr/share/dbench/client.txt' -> 'client.txt' running 'dbench 1 -D /mnt/lustre2/d26.replay-dual/run_dbench -t 100' on /mnt/lustre at Wed Jul 15 02:12:00 EDT 2026 waiting for dbench pid 68995 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 Stopping /mnt/lustre-mds2 (opts:) on oleg342-server 1 of 1 processes prepared for launch 0 sec releasing clients 1 30 1.05 MB/sec warmup 1 sec latency 630.725 ms 02:12:01 (1784095921) shut down facet: mds2 facet_host: oleg342-server facet_failover_host: oleg342-server 1 30 0.52 MB/sec warmup 2 sec latency 1631.001 ms 1 30 0.35 MB/sec warmup 3 sec latency 2631.170 ms 1 30 0.26 MB/sec warmup 4 sec latency 3631.335 ms 1 30 0.21 MB/sec warmup 5 sec latency 4631.879 ms 1 30 0.17 MB/sec warmup 6 sec latency 5632.111 ms 1 30 0.15 MB/sec warmup 7 sec latency 6632.458 ms 1 30 0.13 MB/sec warmup 8 sec latency 7632.637 ms 1 30 0.12 MB/sec warmup 9 sec latency 8632.895 ms 1 30 0.10 MB/sec warmup 10 sec latency 9633.723 ms 1 30 0.10 MB/sec warmup 11 sec latency 10633.904 ms Failover mds2 to oleg342-server mount facets: mds2 1 30 0.09 MB/sec warmup 12 sec latency 11634.097 ms 1 30 0.08 MB/sec warmup 13 sec latency 12634.272 ms 1 30 0.07 MB/sec warmup 14 sec latency 13634.506 ms Start mds2: mount -t lustre -o localrecov /dev/mapper/mds2_flakey /mnt/lustre-mds2 1 30 0.07 MB/sec warmup 15 sec latency 14634.703 ms 1 30 0.07 MB/sec warmup 16 sec latency 15634.973 ms 1 30 0.06 MB/sec warmup 17 sec latency 16635.137 ms oleg342-server: oleg342-server.virtnet: executing set_default_debug -1 all pdsh@oleg342-client: oleg342-server: ssh exited with exit code 1 Started lustre-MDT0001 02:12:18 (1784095938) targets are mounted 02:12:18 (1784095938) facet_failover done 1 30 0.06 MB/sec warmup 18 sec latency 17635.290 ms 1 30 0.06 MB/sec warmup 19 sec latency 18635.503 ms 1 30 0.00 MB/sec execute 1 sec latency 20635.827 ms 1 52 0.52 MB/sec execute 2 sec latency 21409.353 ms 1 165 1.92 MB/sec execute 3 sec latency 54.528 ms oleg342-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0001-mdc-*.mds_server_uuid 1475 0 1 245 2.07 MB/sec execute 4 sec latency 200.996 ms mdc.lustre-MDT0001-mdc-*.mds_server_uuid in FULL state after 0 sec 1 341 2.24 MB/sec execute 5 sec latency 48.758 ms 1 455 2.48 MB/sec execute 6 sec latency 43.071 ms 1 612 2.85 MB/sec execute 7 sec latency 36.988 ms 1 738 2.53 MB/sec execute 8 sec latency 48.521 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 3684 1267620 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 3544 1267760 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 6904 3588392 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 47232 3545692 2% /mnt/lustre[OST:1] filesystem_summary: 7666232 54136 7134084 1% /mnt/lustre 1 863 2.28 MB/sec execute 9 sec latency 43.938 ms 1 885 2.06 MB/sec execute 10 sec latency 634.087 ms 1 916 1.88 MB/sec execute 11 sec latency 647.942 ms 1 1000 1.75 MB/sec execute 12 sec latency 58.405 ms 1 1134 1.69 MB/sec execute 13 sec latency 47.151 ms test_26 fail mds1 5 times 1 1224 1.57 MB/sec execute 14 sec latency 56.808 ms Failing mds1 on oleg342-server Stopping /mnt/lustre-mds1 (opts:) on oleg342-server 1 1409 1.66 MB/sec execute 15 sec latency 74.905 ms 1 1409 1.56 MB/sec execute 16 sec latency 1075.944 ms 1 1409 1.47 MB/sec execute 17 sec latency 2076.104 ms 1 1409 1.39 MB/sec execute 18 sec latency 3077.073 ms 1 1409 1.31 MB/sec execute 19 sec latency 4077.358 ms 1 1409 1.25 MB/sec execute 20 sec latency 5078.061 ms 1 1409 1.19 MB/sec execute 21 sec latency 6078.671 ms 02:12:42 (1784095962) shut down 1 1409 1.13 MB/sec execute 22 sec latency 7078.832 ms facet: mds1 facet_host: oleg342-server facet_failover_host: oleg342-server 1 1409 1.09 MB/sec execute 23 sec latency 8079.032 ms 1 1409 1.04 MB/sec execute 24 sec latency 9079.220 ms 1 1409 1.00 MB/sec execute 25 sec latency 10079.385 ms 1 1409 0.96 MB/sec execute 26 sec latency 11079.624 ms 1 1409 0.92 MB/sec execute 27 sec latency 12079.773 ms 1 1409 0.89 MB/sec execute 28 sec latency 13079.988 ms 1 1409 0.86 MB/sec execute 29 sec latency 14080.156 ms 1 1409 0.83 MB/sec execute 30 sec latency 15080.372 ms 1 1409 0.81 MB/sec execute 31 sec latency 16080.580 ms 1 1409 0.78 MB/sec execute 32 sec latency 17082.043 ms Failover mds1 to oleg342-server mount facets: mds1 1 1409 0.76 MB/sec execute 33 sec latency 18082.875 ms 1 1409 0.73 MB/sec execute 34 sec latency 19083.246 ms 1 1409 0.71 MB/sec execute 35 sec latency 20083.477 ms 1 1409 0.69 MB/sec execute 36 sec latency 21083.737 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 1409 0.67 MB/sec execute 37 sec latency 22083.997 ms 1 1409 0.66 MB/sec execute 38 sec latency 23085.114 ms 1 1409 0.64 MB/sec execute 39 sec latency 24085.524 ms oleg342-server: oleg342-server.virtnet: executing set_default_debug -1 all pdsh@oleg342-client: oleg342-server: ssh exited with exit code 1 1 1409 0.62 MB/sec execute 40 sec latency 25086.851 ms Started lustre-MDT0000 02:13:00 (1784095980) targets are mounted 02:13:00 (1784095980) facet_failover done 1 1409 0.61 MB/sec execute 41 sec latency 26087.804 ms 1 1409 0.59 MB/sec execute 42 sec latency 27088.176 ms 1 1409 0.58 MB/sec execute 43 sec latency 28088.395 ms 1 1409 0.57 MB/sec execute 44 sec latency 29088.686 ms 1 1462 0.56 MB/sec execute 45 sec latency 29425.568 ms 1 1519 0.54 MB/sec execute 46 sec latency 221.375 ms oleg342-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 1607 0.53 MB/sec execute 47 sec latency 46.228 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 1684 0.52 MB/sec execute 48 sec latency 90.318 ms 1 1771 0.51 MB/sec execute 49 sec latency 110.452 ms 1 1859 0.51 MB/sec execute 50 sec latency 64.247 ms 1 1980 0.50 MB/sec execute 51 sec latency 89.641 ms 1 2083 0.49 MB/sec execute 52 sec latency 45.135 ms 1 2164 0.48 MB/sec execute 53 sec latency 103.188 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 3992 1267312 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 3808 1267496 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 15056 3591736 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 58680 3548284 2% /mnt/lustre[OST:1] filesystem_summary: 7666232 73736 7140020 2% /mnt/lustre 1 2270 0.48 MB/sec execute 54 sec latency 80.196 ms 1 2377 0.49 MB/sec execute 55 sec latency 55.844 ms 1 2416 0.48 MB/sec execute 56 sec latency 422.380 ms 1 2467 0.48 MB/sec execute 57 sec latency 699.709 ms 1 2584 0.48 MB/sec execute 58 sec latency 60.078 ms test_26 fail mds2 6 times 1 2774 0.52 MB/sec execute 59 sec latency 105.233 ms Failing mds2 on oleg342-server 1 2943 0.54 MB/sec execute 60 sec latency 61.192 ms Stopping /mnt/lustre-mds2 (opts:) on oleg342-server 1 3169 0.54 MB/sec execute 61 sec latency 66.366 ms 1 3169 0.53 MB/sec execute 62 sec latency 1052.862 ms 02:13:22 (1784096002) shut down facet: mds2 facet_host: oleg342-server facet_failover_host: oleg342-server 1 3169 0.52 MB/sec execute 63 sec latency 2053.102 ms 1 3169 0.52 MB/sec execute 64 sec latency 3053.409 ms 1 3169 0.51 MB/sec execute 65 sec latency 4053.594 ms 1 3169 0.50 MB/sec execute 66 sec latency 5053.755 ms 1 3169 0.49 MB/sec execute 67 sec latency 6054.618 ms 1 3169 0.49 MB/sec execute 68 sec latency 7054.871 ms 1 3169 0.48 MB/sec execute 69 sec latency 8055.038 ms 1 3169 0.47 MB/sec execute 70 sec latency 9055.602 ms 1 3169 0.47 MB/sec execute 71 sec latency 10055.867 ms 1 3169 0.46 MB/sec execute 72 sec latency 11056.127 ms Failover mds2 to oleg342-server mount facets: mds2 1 3169 0.45 MB/sec execute 73 sec latency 12056.622 ms 1 3169 0.45 MB/sec execute 74 sec latency 13056.785 ms 1 3169 0.44 MB/sec execute 75 sec latency 14057.114 ms 1 3169 0.43 MB/sec execute 76 sec latency 15057.329 ms Start mds2: mount -t lustre -o localrecov /dev/mapper/mds2_flakey /mnt/lustre-mds2 1 3169 0.43 MB/sec execute 77 sec latency 16057.540 ms 1 3169 0.42 MB/sec execute 78 sec latency 17057.845 ms oleg342-server: oleg342-server.virtnet: executing set_default_debug -1 all 1 3169 0.42 MB/sec execute 79 sec latency 18058.017 ms pdsh@oleg342-client: oleg342-server: ssh exited with exit code 1 Started lustre-MDT0001 02:13:40 (1784096020) targets are mounted 02:13:40 (1784096020) facet_failover done 1 3169 0.41 MB/sec execute 80 sec latency 19058.345 ms 1 3169 0.41 MB/sec execute 81 sec latency 20058.582 ms 1 3169 0.40 MB/sec execute 82 sec latency 21059.004 ms 1 3169 0.40 MB/sec execute 83 sec latency 22059.228 ms 1 3204 0.40 MB/sec execute 84 sec latency 22705.335 ms 1 3357 0.40 MB/sec execute 85 sec latency 63.745 ms oleg342-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0001-mdc-*.mds_server_uuid 1475 0 1 3551 0.43 MB/sec execute 86 sec latency 51.494 ms mdc.lustre-MDT0001-mdc-*.mds_server_uuid in FULL state after 0 sec 1 3673 0.43 MB/sec execute 87 sec latency 49.722 ms 1 3781 0.44 MB/sec execute 88 sec latency 43.315 ms 1 3857 0.43 MB/sec execute 89 sec latency 71.652 ms 1 3939 0.43 MB/sec execute 90 sec latency 87.946 ms 1 4014 0.43 MB/sec execute 91 sec latency 54.976 ms 1 4094 0.42 MB/sec execute 92 sec latency 52.723 ms 1 4211 0.42 MB/sec execute 93 sec latency 37.538 ms 1 4281 0.42 MB/sec execute 94 sec latency 122.610 ms 1 4338 0.41 MB/sec execute 95 sec latency 245.180 ms 1 4421 0.41 MB/sec execute 96 sec latency 76.149 ms 1 4488 0.41 MB/sec execute 97 sec latency 57.645 ms 1 4557 0.41 MB/sec execute 98 sec latency 89.864 ms 1 4693 0.41 MB/sec execute 99 sec latency 56.741 ms 1 cleanup 100 sec 1 cleanup 101 sec 0 cleanup 102 sec Operation Count AvgLat MaxLat ---------------------------------------- NTCreateX 772 27.187 136.866 Close 600 90.316 29425.546 Rename 34 48.651 244.234 Unlink 137 13.481 60.464 Qpathinfo 650 42.993 22705.312 Qfileinfo 179 1.268 5.084 Qfsinfo 130 0.982 9.126 Sfileinfo 77 28.209 53.358 Find 251 5.786 29.345 WriteX 752 6.024 55.488 ReadX 1085 0.057 6.158 LockX 2 6.966 6.985 UnlockX 2 7.945 10.002 Flush 67 49.444 699.691 Throughput 0.41455 MB/sec 1 clients 1 procs max_latency=29425.568 ms stopping dbench on /mnt/lustre at Wed Jul 15 02:14:02 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 crush2 /mnt/lustre2/d26.replay-dual/run_dbench 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 Wed Jul 15 02:14:05 EDT 2026 waiting for dbench pid 72029 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 71 3.15 MB/sec warmup 1 sec latency 53.265 ms 1 155 3.27 MB/sec warmup 2 sec latency 80.625 ms 1 207 2.70 MB/sec warmup 3 sec latency 218.878 ms 1 289 2.68 MB/sec warmup 4 sec latency 50.778 ms 1 366 2.61 MB/sec warmup 5 sec latency 58.844 ms 1 424 2.48 MB/sec warmup 6 sec latency 200.960 ms 1 501 2.49 MB/sec warmup 7 sec latency 67.621 ms 1 639 2.63 MB/sec warmup 8 sec latency 72.663 ms 1 713 2.35 MB/sec warmup 9 sec latency 59.046 ms dbench killed by signal 15 stopping dbench on /mnt/lustre at Wed Jul 15 02:14:15 EDT 2026 with return code 0 72029 pts/0 S+ 0:00 dbench -c client.txt 1 -D /mnt/lustre2/d26.replay-dual/run_dbench -t 100 killed dbench main pid 72029 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished