== replay-dual test 26: dbench and tar with mds failover ========================================================== 08:20:48 (1786105248) Starting client oleg635-client.virtnet: -o user_xattr,flock 192.168.206.135@tcp:/lustre /mnt/lustre Started clients oleg635-client.virtnet: 192.168.206.135@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 65572 Started dbench loop with 65573 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 Fri Aug 7 08:20:52 EDT 2026 waiting for dbench pid 65623 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 1940 1269364 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 1544 3579540 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 3108 7184996 1% /mnt/lustre 1 34 1.05 MB/sec warmup 1 sec latency 42.455 ms 1 111 2.61 MB/sec warmup 2 sec latency 163.408 ms 1 147 2.09 MB/sec warmup 3 sec latency 204.282 ms 1 184 1.83 MB/sec warmup 4 sec latency 145.714 ms 1 212 1.64 MB/sec warmup 5 sec latency 345.090 ms 1 264 1.65 MB/sec warmup 6 sec latency 104.609 ms 1 319 1.65 MB/sec warmup 7 sec latency 99.811 ms 1 365 1.63 MB/sec warmup 8 sec latency 79.739 ms test_26 fail mds1 1 times 1 422 1.65 MB/sec warmup 9 sec latency 83.759 ms Failing mds1 on oleg635-server 1 469 1.64 MB/sec warmup 10 sec latency 116.822 ms Stopping /mnt/lustre-mds1 (opts:) on oleg635-server 1 521 1.64 MB/sec warmup 11 sec latency 100.835 ms 1 521 1.50 MB/sec warmup 12 sec latency 1074.698 ms 08:21:04 (1786105264) shut down facet: mds1 facet_host: oleg635-server facet_failover_host: oleg635-server 1 521 1.39 MB/sec warmup 13 sec latency 2074.877 ms 1 521 1.29 MB/sec warmup 14 sec latency 3077.088 ms 1 521 1.20 MB/sec warmup 15 sec latency 4077.281 ms 1 521 1.13 MB/sec warmup 16 sec latency 5077.518 ms 1 521 1.06 MB/sec warmup 17 sec latency 6077.720 ms 1 521 1.00 MB/sec warmup 18 sec latency 7077.944 ms 1 521 0.95 MB/sec warmup 19 sec latency 8080.751 ms 1 521 0.00 MB/sec execute 1 sec latency 10083.419 ms 1 521 0.00 MB/sec execute 2 sec latency 11085.511 ms Failover mds1 to oleg635-server 1 521 0.00 MB/sec execute 3 sec latency 12088.445 ms mount facets: mds1 1 521 0.00 MB/sec execute 4 sec latency 13088.686 ms 1 521 0.00 MB/sec execute 5 sec latency 14089.377 ms 1 521 0.00 MB/sec execute 6 sec latency 15089.808 ms 1 521 0.00 MB/sec execute 7 sec latency 16095.145 ms 1 521 0.00 MB/sec execute 8 sec latency 17095.347 ms 1 521 0.00 MB/sec execute 9 sec latency 18096.677 ms 1 521 0.00 MB/sec execute 10 sec latency 19097.031 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 521 0.00 MB/sec execute 11 sec latency 20097.196 ms 1 521 0.00 MB/sec execute 12 sec latency 21098.797 ms 1 521 0.00 MB/sec execute 13 sec latency 22100.584 ms 1 521 0.00 MB/sec execute 14 sec latency 23101.542 ms 1 521 0.00 MB/sec execute 15 sec latency 24101.721 ms 1 521 0.00 MB/sec execute 16 sec latency 25101.956 ms 1 521 0.00 MB/sec execute 17 sec latency 26102.369 ms 1 521 0.00 MB/sec execute 18 sec latency 27102.830 ms 1 521 0.00 MB/sec execute 19 sec latency 28104.554 ms 1 521 0.00 MB/sec execute 20 sec latency 29104.816 ms 1 521 0.00 MB/sec execute 21 sec latency 30105.009 ms oleg635-server: oleg635-server.virtnet: executing set_default_debug -1 all 1 521 0.00 MB/sec execute 22 sec latency 31108.559 ms pdsh@oleg635-client: oleg635-server: ssh exited with exit code 1 1 521 0.00 MB/sec execute 23 sec latency 32109.314 ms Started lustre-MDT0000 08:21:36 (1786105296) targets are mounted 08:21:36 (1786105296) facet_failover done 1 521 0.00 MB/sec execute 24 sec latency 33111.383 ms 1 521 0.00 MB/sec execute 25 sec latency 34111.506 ms 1 565 0.04 MB/sec execute 26 sec latency 34302.533 ms 1 640 0.11 MB/sec execute 27 sec latency 129.585 ms 1 689 0.11 MB/sec execute 28 sec latency 93.788 ms 1 733 0.11 MB/sec execute 29 sec latency 122.069 ms oleg635-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 778 0.11 MB/sec execute 30 sec latency 105.964 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 808 0.11 MB/sec execute 31 sec latency 119.262 ms 1 873 0.11 MB/sec execute 32 sec latency 77.146 ms 1 902 0.11 MB/sec execute 33 sec latency 134.712 ms 1 940 0.11 MB/sec execute 34 sec latency 106.978 ms 1 984 0.11 MB/sec execute 35 sec latency 101.751 ms 1 1063 0.13 MB/sec execute 36 sec latency 86.225 ms 1 1136 0.13 MB/sec execute 37 sec latency 73.783 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2140 1269164 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 1944 1269360 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 18188 3587400 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 37904 3565800 2% /mnt/lustre[OST:1] filesystem_summary: 7666232 56092 7153200 1% /mnt/lustre 1 1172 0.13 MB/sec execute 38 sec latency 379.651 ms 1 1192 0.13 MB/sec execute 39 sec latency 865.503 ms 1 1236 0.13 MB/sec execute 40 sec latency 81.410 ms 1 1376 0.19 MB/sec execute 41 sec latency 125.326 ms 1 1425 0.19 MB/sec execute 42 sec latency 104.296 ms 1 1486 0.19 MB/sec execute 43 sec latency 79.285 ms 1 1545 0.18 MB/sec execute 44 sec latency 60.924 ms 1 1614 0.18 MB/sec execute 45 sec latency 70.405 ms test_26 fail mds2 2 times 1 1667 0.18 MB/sec execute 46 sec latency 93.521 ms Failing mds2 on oleg635-server 1 1717 0.17 MB/sec execute 47 sec latency 105.929 ms Stopping /mnt/lustre-mds2 (opts:) on oleg635-server 1 1787 0.17 MB/sec execute 48 sec latency 71.727 ms 1 1823 0.17 MB/sec execute 49 sec latency 431.681 ms 1 1823 0.17 MB/sec execute 50 sec latency 1432.991 ms 08:22:03 (1786105323) shut down facet: mds2 facet_host: oleg635-server facet_failover_host: oleg635-server 1 1823 0.16 MB/sec execute 51 sec latency 2433.620 ms 1 1823 0.16 MB/sec execute 52 sec latency 3436.124 ms 1 1823 0.16 MB/sec execute 53 sec latency 4438.127 ms 1 1823 0.15 MB/sec execute 54 sec latency 5438.381 ms 1 1823 0.15 MB/sec execute 55 sec latency 6439.625 ms 1 1823 0.15 MB/sec execute 56 sec latency 7439.812 ms 1 1823 0.15 MB/sec execute 57 sec latency 8439.984 ms 1 1823 0.14 MB/sec execute 58 sec latency 9440.315 ms 1 1823 0.14 MB/sec execute 59 sec latency 10440.475 ms 1 1823 0.14 MB/sec execute 60 sec latency 11441.251 ms Failover mds2 to oleg635-server 1 1823 0.14 MB/sec execute 61 sec latency 12442.207 ms mount facets: mds2 1 1823 0.13 MB/sec execute 62 sec latency 13442.459 ms 1 1823 0.13 MB/sec execute 63 sec latency 14442.636 ms 1 1823 0.13 MB/sec execute 64 sec latency 15442.872 ms 1 1823 0.13 MB/sec execute 65 sec latency 16443.480 ms 1 1823 0.13 MB/sec execute 66 sec latency 17445.746 ms 1 1823 0.12 MB/sec execute 67 sec latency 18457.726 ms Start mds2: mount -t lustre -o localrecov /dev/mapper/mds2_flakey /mnt/lustre-mds2 1 1823 0.12 MB/sec execute 68 sec latency 19457.964 ms 1 1823 0.12 MB/sec execute 69 sec latency 20458.151 ms 1 1823 0.12 MB/sec execute 70 sec latency 21458.532 ms 1 1823 0.12 MB/sec execute 71 sec latency 22461.789 ms oleg635-server: oleg635-server.virtnet: executing set_default_debug -1 all 1 1823 0.11 MB/sec execute 72 sec latency 23461.953 ms pdsh@oleg635-client: oleg635-server: ssh exited with exit code 1 1 1823 0.11 MB/sec execute 73 sec latency 24462.157 ms Started lustre-MDT0001 08:22:25 (1786105345) targets are mounted 08:22:25 (1786105345) facet_failover done 1 1823 0.11 MB/sec execute 74 sec latency 25462.660 ms 1 1823 0.11 MB/sec execute 75 sec latency 26462.938 ms 1 1834 0.11 MB/sec execute 76 sec latency 27180.958 ms 1 1897 0.11 MB/sec execute 77 sec latency 83.148 ms 1 1978 0.11 MB/sec execute 78 sec latency 56.793 ms 1 2014 0.11 MB/sec execute 79 sec latency 89.230 ms oleg635-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0001-mdc-*.mds_server_uuid 1475 0 1 2081 0.11 MB/sec execute 80 sec latency 92.676 ms 1 2146 0.11 MB/sec execute 81 sec latency 90.886 ms mdc.lustre-MDT0001-mdc-*.mds_server_uuid in FULL state after 0 sec 1 2181 0.11 MB/sec execute 82 sec latency 96.632 ms 1 2272 0.11 MB/sec execute 83 sec latency 93.376 ms 1 2348 0.12 MB/sec execute 84 sec latency 98.553 ms 1 2388 0.12 MB/sec execute 85 sec latency 86.499 ms 1 2434 0.12 MB/sec execute 86 sec latency 82.097 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2432 1268872 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 2140 1269164 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 28164 3577732 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 41008 3564968 2% /mnt/lustre[OST:1] filesystem_summary: 7666232 69172 7142700 1% /mnt/lustre 1 2496 0.12 MB/sec execute 87 sec latency 79.095 ms 1 2588 0.12 MB/sec execute 88 sec latency 67.771 ms 1 2761 0.16 MB/sec execute 89 sec latency 64.886 ms 1 2904 0.16 MB/sec execute 90 sec latency 62.291 ms 1 2918 0.17 MB/sec execute 91 sec latency 879.626 ms 1 3010 0.17 MB/sec execute 92 sec latency 920.759 ms 1 3232 0.18 MB/sec execute 93 sec latency 67.552 ms test_26 fail mds1 3 times 1 3359 0.18 MB/sec execute 94 sec latency 50.663 ms Failing mds1 on oleg635-server 1 3529 0.21 MB/sec execute 95 sec latency 53.307 ms Stopping /mnt/lustre-mds1 (opts:) on oleg635-server 1 3592 0.21 MB/sec execute 96 sec latency 53.665 ms 1 3616 0.21 MB/sec execute 97 sec latency 919.234 ms 08:22:50 (1786105370) shut down facet: mds1 facet_host: oleg635-server facet_failover_host: oleg635-server 1 3616 0.21 MB/sec execute 98 sec latency 1919.446 ms 1 3616 0.21 MB/sec execute 99 sec latency 2919.829 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 Failover mds1 to oleg635-server mount facets: mds1 1 cleanup 109 sec 1 cleanup 110 sec 1 cleanup 111 sec 1 cleanup 112 sec 1 cleanup 113 sec 1 cleanup 114 sec Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 cleanup 115 sec 1 cleanup 116 sec 1 cleanup 117 sec 1 cleanup 118 sec 1 cleanup 119 sec 1 cleanup 120 sec 1 cleanup 121 sec 1 cleanup 122 sec 1 cleanup 123 sec 1 cleanup 124 sec 1 cleanup 125 sec 1 cleanup 126 sec 1 cleanup 127 sec 1 cleanup 128 sec 1 cleanup 129 sec oleg635-server: oleg635-server.virtnet: executing set_default_debug -1 all pdsh@oleg635-client: oleg635-server: ssh exited with exit code 1 1 cleanup 130 sec Started lustre-MDT0000 08:23:23 (1786105403) targets are mounted 08:23:23 (1786105403) facet_failover done 1 cleanup 131 sec 1 cleanup 132 sec 1 cleanup 133 sec 1 cleanup 134 sec 1 cleanup 135 sec 0 cleanup 136 sec Operation Count AvgLat MaxLat ---------------------------------------- NTCreateX 454 124.505 36715.694 Close 376 100.611 34302.513 Rename 22 73.917 125.309 Unlink 57 20.134 41.593 Qpathinfo 446 74.210 27180.943 Qfileinfo 108 1.992 8.943 Qfsinfo 88 1.850 19.716 Sfileinfo 50 50.117 90.095 Find 189 9.268 60.861 WriteX 331 9.660 63.156 ReadX 928 0.730 66.505 LockX 2 7.484 8.118 UnlockX 2 8.383 11.064 Flush 43 44.753 119.248 Throughput 0.207292 MB/sec 1 clients 1 procs max_latency=34302.533 ms stopping dbench on /mnt/lustre at Fri Aug 7 08:23:28 EDT 2026 with return code 0 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre oleg635-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 removed 'client.txt' /mnt/lustre dbench successfully finished mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 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 Fri Aug 7 08:23:33 EDT 2026 waiting for dbench pid 68830 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 31 1.05 MB/sec warmup 1 sec latency 45.388 ms 1 109 2.58 MB/sec warmup 2 sec latency 80.705 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2852 1268452 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 2668 1268636 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 21168 3583820 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 27824 3577436 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 48992 7161256 1% /mnt/lustre 1 147 2.09 MB/sec warmup 3 sec latency 147.816 ms 1 181 1.83 MB/sec warmup 4 sec latency 209.171 ms 1 207 1.62 MB/sec warmup 5 sec latency 454.418 ms 1 247 1.56 MB/sec warmup 6 sec latency 125.267 ms 1 297 1.56 MB/sec warmup 7 sec latency 103.534 ms 1 341 1.53 MB/sec warmup 8 sec latency 147.129 ms 1 405 1.59 MB/sec warmup 9 sec latency 94.884 ms 1 469 1.64 MB/sec warmup 10 sec latency 69.093 ms test_26 fail mds2 4 times 1 516 1.61 MB/sec warmup 11 sec latency 99.561 ms Failing mds2 on oleg635-server 1 612 1.74 MB/sec warmup 12 sec latency 110.317 ms Stopping /mnt/lustre-mds2 (opts:) on oleg635-server 1 678 1.63 MB/sec warmup 13 sec latency 85.528 ms 1 708 1.51 MB/sec warmup 14 sec latency 515.425 ms 1 708 1.41 MB/sec warmup 15 sec latency 1515.634 ms 08:23:49 (1786105429) shut down facet: mds2 facet_host: oleg635-server facet_failover_host: oleg635-server 1 708 1.32 MB/sec warmup 16 sec latency 2515.898 ms 1 708 1.25 MB/sec warmup 17 sec latency 3518.290 ms 1 708 1.18 MB/sec warmup 18 sec latency 4518.539 ms 1 708 1.11 MB/sec warmup 19 sec latency 5524.294 ms 1 708 0.00 MB/sec execute 1 sec latency 7524.712 ms 1 708 0.00 MB/sec execute 2 sec latency 8525.840 ms 1 708 0.00 MB/sec execute 3 sec latency 9526.029 ms 1 708 0.00 MB/sec execute 4 sec latency 10526.284 ms 1 708 0.00 MB/sec execute 5 sec latency 11526.473 ms Failover mds2 to oleg635-server mount facets: mds2 1 708 0.00 MB/sec execute 6 sec latency 12526.667 ms 1 708 0.00 MB/sec execute 7 sec latency 13526.863 ms 1 708 0.00 MB/sec execute 8 sec latency 14527.395 ms 1 708 0.00 MB/sec execute 9 sec latency 15528.110 ms 1 708 0.00 MB/sec execute 10 sec latency 16528.334 ms 1 708 0.00 MB/sec execute 11 sec latency 17528.497 ms 1 708 0.00 MB/sec execute 12 sec latency 18528.714 ms Start mds2: mount -t lustre -o localrecov /dev/mapper/mds2_flakey /mnt/lustre-mds2 1 708 0.00 MB/sec execute 13 sec latency 19528.962 ms 1 708 0.00 MB/sec execute 14 sec latency 20529.141 ms 1 708 0.00 MB/sec execute 15 sec latency 21529.631 ms 1 708 0.00 MB/sec execute 16 sec latency 22529.826 ms 1 708 0.00 MB/sec execute 17 sec latency 23530.067 ms oleg635-server: oleg635-server.virtnet: executing set_default_debug -1 all 1 708 0.00 MB/sec execute 18 sec latency 24530.605 ms pdsh@oleg635-client: oleg635-server: ssh exited with exit code 1 1 708 0.00 MB/sec execute 19 sec latency 25531.829 ms Started lustre-MDT0001 08:24:13 (1786105453) targets are mounted 08:24:13 (1786105453) facet_failover done 1 708 0.00 MB/sec execute 20 sec latency 26531.965 ms 1 721 0.00 MB/sec execute 21 sec latency 27196.804 ms 1 769 0.01 MB/sec execute 22 sec latency 83.634 ms 1 808 0.01 MB/sec execute 23 sec latency 90.717 ms 1 874 0.02 MB/sec execute 24 sec latency 93.883 ms oleg635-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0001-mdc-*.mds_server_uuid 1475 0 1 884 0.02 MB/sec execute 25 sec latency 745.137 ms 1 913 0.02 MB/sec execute 26 sec latency 841.980 ms mdc.lustre-MDT0001-mdc-*.mds_server_uuid in FULL state after 0 sec 1 960 0.02 MB/sec execute 27 sec latency 70.509 ms 1 1023 0.05 MB/sec execute 28 sec latency 98.692 ms 1 1086 0.06 MB/sec execute 29 sec latency 66.950 ms 1 1143 0.06 MB/sec execute 30 sec latency 85.375 ms tar: Unexpected EOF in archive tar: Unexpected EOF in archive 1 1193 0.06 MB/sec execute 31 sec latency 79.075 ms 1 1244 0.06 MB/sec execute 32 sec latency 71.779 ms 1 1396 0.15 MB/sec execute 33 sec latency 98.901 ms 1 1453 0.14 MB/sec execute 34 sec latency 144.485 ms 1 1502 0.14 MB/sec execute 35 sec latency 224.427 ms 1 1562 0.14 MB/sec execute 36 sec latency 59.401 ms 1 1624 0.13 MB/sec execute 37 sec latency 57.662 ms 1 1686 0.13 MB/sec execute 38 sec latency 70.275 ms tar: Error is not recoverable: exiting now dbench killed by signal 15 stopping dbench on /mnt/lustre at Fri Aug 7 08:24:32 EDT 2026 with return code 0 1 1771 0.13 MB/sec execute 39 sec latency 86.052 ms 68830 pts/0 S+ 0:00 dbench -c client.txt 1 -D /mnt/lustre2/d26.replay-dual/run_dbench -t 100 killed dbench main pid 68830 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished