== replay-dual test 26: dbench and tar with mds failover ========================================================== 09:07:40 (1787836060) Starting client oleg435-client.virtnet: -o user_xattr,flock 192.168.204.135@tcp:/lustre /mnt/lustre Started clients oleg435-client.virtnet: 192.168.204.135@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 65727 Started dbench loop with 65728 striped dir -i0 -c2 -H crush2 /mnt/lustre/d26.replay-dual/run_tar striped dir -i0 -c2 -H fnv_1a_64 /mnt/lustre2/d26.replay-dual/run_dbench 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 1932 1269372 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 1764 1269540 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 1564 3597168 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 1544 3605476 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 3108 7202644 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 27 09:07:46 EDT 2026 waiting for dbench pid 65807 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 117.828 ms 1 64 1.37 MB/sec warmup 2 sec latency 123.246 ms 1 106 1.66 MB/sec warmup 3 sec latency 201.937 ms 1 137 1.50 MB/sec warmup 4 sec latency 162.781 ms 1 155 1.31 MB/sec warmup 5 sec latency 459.053 ms 1 165 1.13 MB/sec warmup 6 sec latency 994.182 ms 1 195 1.11 MB/sec warmup 7 sec latency 387.218 ms 1 232 1.11 MB/sec warmup 8 sec latency 132.191 ms test_26 fail mds1 1 times 1 271 1.13 MB/sec warmup 9 sec latency 185.414 ms 1 302 1.11 MB/sec warmup 10 sec latency 130.693 ms Failing mds1 on oleg435-server 1 331 1.09 MB/sec warmup 11 sec latency 166.266 ms 1 357 1.06 MB/sec warmup 12 sec latency 286.185 ms Stopping /mnt/lustre-mds1 (opts:) on oleg435-server 1 389 1.06 MB/sec warmup 13 sec latency 148.717 ms 1 405 1.02 MB/sec warmup 14 sec latency 395.647 ms 1 405 0.96 MB/sec warmup 15 sec latency 1396.044 ms 1 405 0.90 MB/sec warmup 16 sec latency 2396.297 ms 09:08:03 (1787836083) shut down facet: mds1 facet_host: oleg435-server facet_failover_host: oleg435-server 1 405 0.84 MB/sec warmup 17 sec latency 3396.893 ms 1 405 0.80 MB/sec warmup 18 sec latency 4397.269 ms 1 405 0.75 MB/sec warmup 19 sec latency 5397.577 ms 1 405 0.00 MB/sec execute 1 sec latency 7403.031 ms 1 405 0.00 MB/sec execute 2 sec latency 8404.144 ms 1 405 0.00 MB/sec execute 3 sec latency 9404.340 ms 1 405 0.00 MB/sec execute 4 sec latency 10404.544 ms 1 405 0.00 MB/sec execute 5 sec latency 11404.834 ms 1 405 0.00 MB/sec execute 6 sec latency 12405.416 ms Failover mds1 to oleg435-server mount facets: mds1 1 405 0.00 MB/sec execute 7 sec latency 13406.819 ms 1 405 0.00 MB/sec execute 8 sec latency 14407.092 ms 1 405 0.00 MB/sec execute 9 sec latency 15407.696 ms 1 405 0.00 MB/sec execute 10 sec latency 16408.131 ms 1 405 0.00 MB/sec execute 11 sec latency 17411.512 ms 1 405 0.00 MB/sec execute 12 sec latency 18411.708 ms 1 405 0.00 MB/sec execute 13 sec latency 19411.964 ms 1 405 0.00 MB/sec execute 14 sec latency 20412.112 ms 1 405 0.00 MB/sec execute 15 sec latency 21414.585 ms 1 405 0.00 MB/sec execute 16 sec latency 22414.968 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 405 0.00 MB/sec execute 17 sec latency 23415.187 ms 1 405 0.00 MB/sec execute 18 sec latency 24415.548 ms 1 405 0.00 MB/sec execute 19 sec latency 25415.767 ms 1 405 0.00 MB/sec execute 20 sec latency 26416.125 ms 1 405 0.00 MB/sec execute 21 sec latency 27416.341 ms 1 405 0.00 MB/sec execute 22 sec latency 28416.584 ms 1 405 0.00 MB/sec execute 23 sec latency 29418.395 ms 1 405 0.00 MB/sec execute 24 sec latency 30422.517 ms 1 405 0.00 MB/sec execute 25 sec latency 31424.459 ms 1 405 0.00 MB/sec execute 26 sec latency 32424.743 ms 1 405 0.00 MB/sec execute 27 sec latency 33425.130 ms 1 405 0.00 MB/sec execute 28 sec latency 34425.411 ms oleg435-server: oleg435-server.virtnet: executing set_default_debug -1 all 1 405 0.00 MB/sec execute 29 sec latency 35425.644 ms 1 405 0.00 MB/sec execute 30 sec latency 36426.003 ms pdsh@oleg435-client: oleg435-server: ssh exited with exit code 1 1 405 0.00 MB/sec execute 31 sec latency 37427.192 ms Started lustre-MDT0000 09:08:39 (1787836119) targets are mounted 09:08:39 (1787836119) facet_failover done 1 405 0.00 MB/sec execute 32 sec latency 38427.486 ms 1 443 0.04 MB/sec execute 33 sec latency 38431.733 ms 1 477 0.07 MB/sec execute 34 sec latency 129.872 ms 1 501 0.09 MB/sec execute 35 sec latency 207.877 ms 1 533 0.12 MB/sec execute 36 sec latency 185.498 ms 1 555 0.13 MB/sec execute 37 sec latency 791.592 ms 1 614 0.17 MB/sec execute 38 sec latency 116.537 ms 1 655 0.17 MB/sec execute 39 sec latency 112.975 ms 1 678 0.17 MB/sec execute 40 sec latency 146.753 ms 1 707 0.17 MB/sec execute 41 sec latency 167.124 ms oleg435-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 731 0.17 MB/sec execute 42 sec latency 123.945 ms 1 748 0.16 MB/sec execute 43 sec latency 150.562 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 779 0.16 MB/sec execute 44 sec latency 189.615 ms 1 809 0.16 MB/sec execute 45 sec latency 128.400 ms 1 857 0.16 MB/sec execute 46 sec latency 110.277 ms 1 885 0.16 MB/sec execute 47 sec latency 113.332 ms 1 910 0.15 MB/sec execute 48 sec latency 174.012 ms 1 929 0.15 MB/sec execute 49 sec latency 159.054 ms 1 965 0.15 MB/sec execute 50 sec latency 134.118 ms 1 985 0.15 MB/sec execute 51 sec latency 153.804 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2100 1269204 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 1916 1269388 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 39612 3563268 2% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 13200 3590588 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 52812 7153856 1% /mnt/lustre 1 1041 0.16 MB/sec execute 52 sec latency 84.986 ms 1 1076 0.16 MB/sec execute 53 sec latency 101.050 ms 1 1119 0.16 MB/sec execute 54 sec latency 96.849 ms 1 1151 0.16 MB/sec execute 55 sec latency 135.636 ms 1 1173 0.15 MB/sec execute 56 sec latency 643.089 ms 1 1214 0.15 MB/sec execute 57 sec latency 82.914 ms 1 1259 0.15 MB/sec execute 58 sec latency 91.880 ms 1 1395 0.20 MB/sec execute 59 sec latency 77.072 ms 1 1431 0.19 MB/sec execute 60 sec latency 118.656 ms test_26 fail mds2 2 times 1 1493 0.19 MB/sec execute 61 sec latency 106.061 ms 1 1520 0.19 MB/sec execute 62 sec latency 160.997 ms Failing mds2 on oleg435-server 1 1558 0.19 MB/sec execute 63 sec latency 136.401 ms Stopping /mnt/lustre-mds2 (opts:) on oleg435-server 1 1599 0.18 MB/sec execute 64 sec latency 129.504 ms 1 1643 0.18 MB/sec execute 65 sec latency 120.746 ms 1 1686 0.18 MB/sec execute 66 sec latency 138.068 ms 1 1736 0.18 MB/sec execute 67 sec latency 101.234 ms 09:09:14 (1787836154) shut down facet: mds2 facet_host: oleg435-server facet_failover_host: oleg435-server 1 1781 0.18 MB/sec execute 68 sec latency 124.888 ms 1 1849 0.17 MB/sec execute 69 sec latency 65.559 ms 1 1937 0.17 MB/sec execute 70 sec latency 69.556 ms 1 2010 0.17 MB/sec execute 71 sec latency 70.857 ms 1 2123 0.17 MB/sec execute 72 sec latency 63.075 ms 1 2166 0.17 MB/sec execute 73 sec latency 106.254 ms 1 2245 0.17 MB/sec execute 74 sec latency 75.542 ms 1 2259 0.17 MB/sec execute 75 sec latency 895.684 ms 1 2259 0.16 MB/sec execute 76 sec latency 1896.068 ms 1 2259 0.16 MB/sec execute 77 sec latency 2896.356 ms 1 2259 0.16 MB/sec execute 78 sec latency 3897.916 ms Failover mds2 to oleg435-server mount facets: mds2 1 2259 0.16 MB/sec execute 79 sec latency 4898.467 ms 1 2259 0.16 MB/sec execute 80 sec latency 5899.013 ms 1 2259 0.15 MB/sec execute 81 sec latency 6899.822 ms 1 2259 0.15 MB/sec execute 82 sec latency 7902.085 ms 1 2259 0.15 MB/sec execute 83 sec latency 8902.758 ms 1 2259 0.15 MB/sec execute 84 sec latency 9902.950 ms 1 2259 0.15 MB/sec execute 85 sec latency 10903.492 ms 1 2259 0.14 MB/sec execute 86 sec latency 11903.834 ms 1 2259 0.14 MB/sec execute 87 sec latency 12906.997 ms Start mds2: mount -t lustre -o localrecov /dev/mapper/mds2_flakey /mnt/lustre-mds2 1 2259 0.14 MB/sec execute 88 sec latency 13907.293 ms 1 2259 0.14 MB/sec execute 89 sec latency 14907.570 ms 1 2259 0.14 MB/sec execute 90 sec latency 15908.332 ms 1 2259 0.14 MB/sec execute 91 sec latency 16908.613 ms 1 2259 0.14 MB/sec execute 92 sec latency 17909.495 ms 1 2259 0.13 MB/sec execute 93 sec latency 18909.774 ms 1 2259 0.13 MB/sec execute 94 sec latency 19910.182 ms oleg435-server: oleg435-server.virtnet: executing set_default_debug -1 all 1 2259 0.13 MB/sec execute 95 sec latency 20910.558 ms pdsh@oleg435-client: oleg435-server: ssh exited with exit code 1 1 2259 0.13 MB/sec execute 96 sec latency 21915.302 ms 1 2259 0.13 MB/sec execute 97 sec latency 22917.935 ms Started lustre-MDT0001 09:09:44 (1787836184) targets are mounted 09:09:44 (1787836184) facet_failover done 1 2297 0.14 MB/sec execute 98 sec latency 23303.564 ms 1 2345 0.14 MB/sec execute 99 sec latency 104.560 ms 1 cleanup 100 sec 1 cleanup 101 sec 1 cleanup 102 sec 1 cleanup 103 sec 1 cleanup 104 sec 0 cleanup 105 sec Operation Count AvgLat MaxLat ---------------------------------------- NTCreateX 341 239.589 38431.696 Close 296 12.791 57.734 Rename 12 90.015 138.340 Unlink 31 29.789 62.320 Qpathinfo 311 16.614 136.380 Qfileinfo 84 2.096 12.640 Qfsinfo 38 5.420 30.539 Sfileinfo 38 73.977 153.778 Find 105 13.563 75.818 WriteX 301 15.633 82.559 ReadX 379 2.792 110.261 Flush 31 66.545 131.560 Throughput 0.136642 MB/sec 1 clients 1 procs max_latency=38431.733 ms stopping dbench on /mnt/lustre at Thu Aug 27 09:09:52 EDT 2026 with return code 0 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre oleg435-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0001-mdc-*.mds_server_uuid 1475 0 removed 'client.txt' /mnt/lustre dbench successfully finished mdc.lustre-MDT0001-mdc-*.mds_server_uuid in FULL state after 0 sec striped dir -i0 -c2 -H crush /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 Thu Aug 27 09:10:01 EDT 2026 waiting for dbench pid 67937 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 81.373 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2356 1268948 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 2144 1269160 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 19552 3586616 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 27660 3577300 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 47212 7163916 1% /mnt/lustre 1 79 1.73 MB/sec warmup 2 sec latency 93.313 ms 1 130 1.92 MB/sec warmup 3 sec latency 136.346 ms 1 157 1.63 MB/sec warmup 4 sec latency 171.017 ms 1 184 1.48 MB/sec warmup 5 sec latency 229.204 ms 1 207 1.35 MB/sec warmup 6 sec latency 466.201 ms 1 247 1.34 MB/sec warmup 7 sec latency 126.250 ms 1 287 1.34 MB/sec warmup 8 sec latency 130.812 ms 1 313 1.28 MB/sec warmup 9 sec latency 159.519 ms 1 349 1.25 MB/sec warmup 10 sec latency 137.973 ms 1 381 1.23 MB/sec warmup 11 sec latency 136.028 ms test_26 fail mds1 3 times 1 412 1.22 MB/sec warmup 12 sec latency 155.796 ms 1 442 1.19 MB/sec warmup 13 sec latency 150.862 ms 1 477 1.19 MB/sec warmup 14 sec latency 144.825 ms Failing mds1 on oleg435-server 1 507 1.17 MB/sec warmup 15 sec latency 149.955 ms Stopping /mnt/lustre-mds1 (opts:) on oleg435-server 1 543 1.19 MB/sec warmup 16 sec latency 196.010 ms 1 616 1.23 MB/sec warmup 17 sec latency 109.379 ms 1 616 1.16 MB/sec warmup 18 sec latency 1103.946 ms 1 616 1.10 MB/sec warmup 19 sec latency 2104.153 ms 09:10:21 (1787836221) shut down facet: mds1 facet_host: oleg435-server facet_failover_host: oleg435-server 1 616 0.00 MB/sec execute 1 sec latency 4104.622 ms 1 616 0.00 MB/sec execute 2 sec latency 5105.938 ms 1 616 0.00 MB/sec execute 3 sec latency 6108.450 ms 1 616 0.00 MB/sec execute 4 sec latency 7108.675 ms 1 616 0.00 MB/sec execute 5 sec latency 8108.997 ms 1 616 0.00 MB/sec execute 6 sec latency 9109.269 ms 1 616 0.00 MB/sec execute 7 sec latency 10110.366 ms 1 616 0.00 MB/sec execute 8 sec latency 11110.677 ms 1 616 0.00 MB/sec execute 9 sec latency 12111.873 ms 1 616 0.00 MB/sec execute 10 sec latency 13118.050 ms Failover mds1 to oleg435-server mount facets: mds1 1 616 0.00 MB/sec execute 11 sec latency 14119.183 ms 1 616 0.00 MB/sec execute 12 sec latency 15121.052 ms 1 616 0.00 MB/sec execute 13 sec latency 16122.363 ms 1 616 0.00 MB/sec execute 14 sec latency 17123.303 ms 1 616 0.00 MB/sec execute 15 sec latency 18123.966 ms 1 616 0.00 MB/sec execute 16 sec latency 19127.679 ms 1 616 0.00 MB/sec execute 17 sec latency 20128.038 ms 1 616 0.00 MB/sec execute 18 sec latency 21128.939 ms 1 616 0.00 MB/sec execute 19 sec latency 22129.209 ms 1 616 0.00 MB/sec execute 20 sec latency 23130.549 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 616 0.00 MB/sec execute 21 sec latency 24130.829 ms 1 616 0.00 MB/sec execute 22 sec latency 25133.326 ms 1 616 0.00 MB/sec execute 23 sec latency 26133.508 ms 1 616 0.00 MB/sec execute 24 sec latency 27139.393 ms 1 616 0.00 MB/sec execute 25 sec latency 28139.642 ms 1 616 0.00 MB/sec execute 26 sec latency 29141.277 ms 1 616 0.00 MB/sec execute 27 sec latency 30141.503 ms 1 616 0.00 MB/sec execute 28 sec latency 31141.736 ms 1 616 0.00 MB/sec execute 29 sec latency 32141.980 ms 1 616 0.00 MB/sec execute 30 sec latency 33142.942 ms 1 616 0.00 MB/sec execute 31 sec latency 34144.329 ms 1 616 0.00 MB/sec execute 32 sec latency 35144.597 ms oleg435-server: oleg435-server.virtnet: executing set_default_debug -1 all 1 616 0.00 MB/sec execute 33 sec latency 36144.880 ms pdsh@oleg435-client: oleg435-server: ssh exited with exit code 1 1 636 0.00 MB/sec execute 34 sec latency 36951.799 ms Started lustre-MDT0000 09:10:56 (1787836256) targets are mounted 09:10:56 (1787836256) facet_failover done 1 664 0.01 MB/sec execute 35 sec latency 272.020 ms 1 695 0.01 MB/sec execute 36 sec latency 132.632 ms 1 723 0.01 MB/sec execute 37 sec latency 132.683 ms 1 759 0.01 MB/sec execute 38 sec latency 147.886 ms 1 786 0.01 MB/sec execute 39 sec latency 185.806 ms 1 811 0.01 MB/sec execute 40 sec latency 136.482 ms 1 857 0.01 MB/sec execute 41 sec latency 127.312 ms 1 884 0.02 MB/sec execute 42 sec latency 119.116 ms oleg435-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 884 0.02 MB/sec execute 43 sec latency 1080.820 ms 1 900 0.02 MB/sec execute 44 sec latency 1337.742 ms 1 923 0.02 MB/sec execute 45 sec latency 124.117 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 964 0.02 MB/sec execute 46 sec latency 155.116 ms 1 985 0.02 MB/sec execute 47 sec latency 122.629 ms 1 1050 0.04 MB/sec execute 48 sec latency 144.219 ms 1 1084 0.04 MB/sec execute 49 sec latency 150.799 ms 1 1132 0.04 MB/sec execute 50 sec latency 86.047 ms 1 1155 0.04 MB/sec execute 51 sec latency 207.912 ms 1 1181 0.04 MB/sec execute 52 sec latency 191.528 ms 1 1224 0.04 MB/sec execute 53 sec latency 92.707 ms tar: Unexpected EOF in archive tar: Unexpected EOF in archive 1 1255 0.04 MB/sec execute 54 sec latency 185.248 ms 1 1285 0.04 MB/sec execute 55 sec latency 136.736 ms 1 1405 0.09 MB/sec execute 56 sec latency 120.152 ms 1 1445 0.09 MB/sec execute 57 sec latency 122.261 ms 1 1474 0.09 MB/sec execute 58 sec latency 286.040 ms 1 1512 0.09 MB/sec execute 59 sec latency 130.876 ms 1 1556 0.09 MB/sec execute 60 sec latency 108.719 ms 1 1578 0.08 MB/sec execute 61 sec latency 178.835 ms 1 1616 0.08 MB/sec execute 62 sec latency 147.589 ms 1 1646 0.08 MB/sec execute 63 sec latency 168.794 ms 1 1678 0.08 MB/sec execute 64 sec latency 123.279 ms 1 1713 0.08 MB/sec execute 65 sec latency 177.989 ms 1 1775 0.08 MB/sec execute 66 sec latency 100.639 ms tar: Error is not recoverable: exiting now dbench killed by signal 15 stopping dbench on /mnt/lustre at Thu Aug 27 09:11:28 EDT 2026 with return code 0 1 1834 0.08 MB/sec execute 67 sec latency 97.917 ms 67937 pts/0 S+ 0:00 dbench -c client.txt 1 -D /mnt/lustre2/d26.replay-dual/run_dbench -t 100 killed dbench main pid 67937 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished