== replay-dual test 26: dbench and tar with mds failover ========================================================== 01:05:54 (1788584754) Starting client oleg656-client.virtnet: -o user_xattr,flock 192.168.206.156@tcp:/lustre /mnt/lustre Started clients oleg656-client.virtnet: 192.168.206.156@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 65625 Started dbench loop with 65626 striped dir -i0 -c2 -H crush /mnt/lustre2/d26.replay-dual/run_dbench striped dir -i0 -c2 -H crush2 /mnt/lustre/d26.replay-dual/run_tar 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 1940 1269364 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 1756 1269548 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 1564 3588900 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 1544 3605476 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 3108 7194376 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 Sat Sep 5 01:06:02 EDT 2026 waiting for dbench pid 65705 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 60.067 ms 1 74 1.57 MB/sec warmup 2 sec latency 125.075 ms 1 112 1.75 MB/sec warmup 3 sec latency 191.427 ms 1 142 1.50 MB/sec warmup 4 sec latency 222.952 ms 1 168 1.36 MB/sec warmup 5 sec latency 180.763 ms 1 180 1.22 MB/sec warmup 6 sec latency 727.074 ms 1 181 1.04 MB/sec warmup 7 sec latency 1705.340 ms 1 197 0.98 MB/sec warmup 8 sec latency 486.171 ms 1 208 0.90 MB/sec warmup 9 sec latency 334.903 ms 1 256 0.97 MB/sec warmup 10 sec latency 136.960 ms test_26 fail mds1 1 times 1 289 0.97 MB/sec warmup 11 sec latency 215.194 ms 1 311 0.95 MB/sec warmup 12 sec latency 328.695 ms 1 331 0.92 MB/sec warmup 13 sec latency 242.660 ms Failing mds1 on oleg656-server 1 349 0.89 MB/sec warmup 14 sec latency 309.482 ms 1 382 0.90 MB/sec warmup 15 sec latency 162.499 ms Stopping /mnt/lustre-mds1 (opts:) on oleg656-server 1 410 0.90 MB/sec warmup 16 sec latency 178.965 ms 1 421 0.87 MB/sec warmup 17 sec latency 773.326 ms 1 421 0.82 MB/sec warmup 18 sec latency 1774.484 ms 1 421 0.78 MB/sec warmup 19 sec latency 2774.697 ms 01:06:21 (1788584781) shut down facet: mds1 facet_host: oleg656-server facet_failover_host: oleg656-server 1 421 0.00 MB/sec execute 1 sec latency 4778.173 ms 1 421 0.00 MB/sec execute 2 sec latency 5779.284 ms 1 421 0.00 MB/sec execute 3 sec latency 6779.482 ms 1 421 0.00 MB/sec execute 4 sec latency 7779.713 ms 1 421 0.00 MB/sec execute 5 sec latency 8781.206 ms 1 421 0.00 MB/sec execute 6 sec latency 9782.988 ms 1 421 0.00 MB/sec execute 7 sec latency 10783.290 ms 1 421 0.00 MB/sec execute 8 sec latency 11783.791 ms 1 421 0.00 MB/sec execute 9 sec latency 12785.988 ms Failover mds1 to oleg656-server mount facets: mds1 1 421 0.00 MB/sec execute 10 sec latency 13786.319 ms 1 421 0.00 MB/sec execute 11 sec latency 14786.526 ms 1 421 0.00 MB/sec execute 12 sec latency 15786.960 ms 1 421 0.00 MB/sec execute 13 sec latency 16789.103 ms 1 421 0.00 MB/sec execute 14 sec latency 17789.521 ms 1 421 0.00 MB/sec execute 15 sec latency 18799.630 ms 1 421 0.00 MB/sec execute 16 sec latency 19800.207 ms 1 421 0.00 MB/sec execute 17 sec latency 20800.458 ms 1 421 0.00 MB/sec execute 18 sec latency 21801.311 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 421 0.00 MB/sec execute 19 sec latency 22801.912 ms 1 421 0.00 MB/sec execute 20 sec latency 23802.192 ms 1 421 0.00 MB/sec execute 21 sec latency 24802.398 ms 1 421 0.00 MB/sec execute 22 sec latency 25806.055 ms 1 421 0.00 MB/sec execute 23 sec latency 26806.292 ms 1 421 0.00 MB/sec execute 24 sec latency 27806.480 ms 1 421 0.00 MB/sec execute 25 sec latency 28816.293 ms 1 421 0.00 MB/sec execute 26 sec latency 29816.541 ms 1 421 0.00 MB/sec execute 27 sec latency 30816.836 ms 1 421 0.00 MB/sec execute 28 sec latency 31819.019 ms oleg656-server: oleg656-server.virtnet: executing set_default_debug -1 all 1 421 0.00 MB/sec execute 29 sec latency 32819.269 ms pdsh@oleg656-client: oleg656-server: ssh exited with exit code 1 Started lustre-MDT0000 01:06:52 (1788584812) targets are mounted 1 421 0.00 MB/sec execute 30 sec latency 33819.475 ms 01:06:52 (1788584812) facet_failover done 1 421 0.00 MB/sec execute 31 sec latency 34819.720 ms 1 449 0.03 MB/sec execute 32 sec latency 35078.012 ms 1 476 0.06 MB/sec execute 33 sec latency 170.656 ms 1 503 0.08 MB/sec execute 34 sec latency 139.515 ms 1 542 0.12 MB/sec execute 35 sec latency 145.091 ms 1 600 0.17 MB/sec execute 36 sec latency 549.952 ms 1 649 0.17 MB/sec execute 37 sec latency 101.129 ms oleg656-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 678 0.17 MB/sec execute 38 sec latency 126.332 ms 1 710 0.16 MB/sec execute 39 sec latency 168.463 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 735 0.16 MB/sec execute 40 sec latency 188.026 ms 1 764 0.16 MB/sec execute 41 sec latency 123.700 ms 1 786 0.16 MB/sec execute 42 sec latency 185.130 ms 1 821 0.15 MB/sec execute 43 sec latency 89.810 ms 1 873 0.15 MB/sec execute 44 sec latency 94.499 ms 1 903 0.15 MB/sec execute 45 sec latency 131.949 ms 1 942 0.15 MB/sec execute 46 sec latency 90.109 ms 1 971 0.15 MB/sec execute 47 sec latency 133.642 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2088 1269216 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 1896 1269408 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 44568 3558292 2% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 8100 3595576 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 52668 7153868 1% /mnt/lustre 1 994 0.15 MB/sec execute 48 sec latency 132.593 ms 1 1052 0.16 MB/sec execute 49 sec latency 108.445 ms 1 1095 0.16 MB/sec execute 50 sec latency 108.014 ms 1 1136 0.16 MB/sec execute 51 sec latency 86.299 ms 1 1172 0.16 MB/sec execute 52 sec latency 168.744 ms 1 1172 0.15 MB/sec execute 53 sec latency 1169.926 ms 1 1195 0.15 MB/sec execute 54 sec latency 1241.642 ms 1 1228 0.15 MB/sec execute 55 sec latency 150.963 ms 1 1263 0.15 MB/sec execute 56 sec latency 97.908 ms 1 1396 0.20 MB/sec execute 57 sec latency 68.238 ms test_26 fail mds2 2 times 1 1435 0.19 MB/sec execute 58 sec latency 124.868 ms 1 1489 0.19 MB/sec execute 59 sec latency 115.407 ms Failing mds2 on oleg656-server 1 1538 0.19 MB/sec execute 60 sec latency 74.031 ms Stopping /mnt/lustre-mds2 (opts:) on oleg656-server 1 1591 0.18 MB/sec execute 61 sec latency 60.473 ms 1 1632 0.18 MB/sec execute 62 sec latency 106.576 ms 1 1684 0.18 MB/sec execute 63 sec latency 86.094 ms 1 1738 0.18 MB/sec execute 64 sec latency 102.157 ms 01:07:26 (1788584846) shut down facet: mds2 facet_host: oleg656-server facet_failover_host: oleg656-server 1 1810 0.18 MB/sec execute 65 sec latency 88.514 ms 1 1873 0.17 MB/sec execute 66 sec latency 79.871 ms 1 1954 0.17 MB/sec execute 67 sec latency 72.998 ms 1 2014 0.17 MB/sec execute 68 sec latency 83.726 ms 1 2083 0.17 MB/sec execute 69 sec latency 87.783 ms 1 2138 0.17 MB/sec execute 70 sec latency 122.943 ms 1 2193 0.17 MB/sec execute 71 sec latency 89.405 ms 1 2259 0.17 MB/sec execute 72 sec latency 364.445 ms 1 2259 0.16 MB/sec execute 73 sec latency 1364.945 ms 1 2259 0.16 MB/sec execute 74 sec latency 2365.592 ms Failover mds2 to oleg656-server mount facets: mds2 1 2259 0.16 MB/sec execute 75 sec latency 3366.885 ms 1 2259 0.16 MB/sec execute 76 sec latency 4368.263 ms 1 2259 0.15 MB/sec execute 77 sec latency 5368.470 ms 1 2259 0.15 MB/sec execute 78 sec latency 6368.673 ms 1 2259 0.15 MB/sec execute 79 sec latency 7369.449 ms 1 2259 0.15 MB/sec execute 80 sec latency 8373.186 ms 1 2259 0.15 MB/sec execute 81 sec latency 9373.298 ms 1 2259 0.15 MB/sec execute 82 sec latency 10373.611 ms 1 2259 0.14 MB/sec execute 83 sec latency 11374.336 ms 1 2259 0.14 MB/sec execute 84 sec latency 12374.819 ms 1 2259 0.14 MB/sec execute 85 sec latency 13375.034 ms Start mds2: mount -t lustre -o localrecov /dev/mapper/mds2_flakey /mnt/lustre-mds2 1 2259 0.14 MB/sec execute 86 sec latency 14376.108 ms 1 2259 0.14 MB/sec execute 87 sec latency 15380.423 ms 1 2259 0.14 MB/sec execute 88 sec latency 16381.259 ms 1 2259 0.13 MB/sec execute 89 sec latency 17381.523 ms 1 2259 0.13 MB/sec execute 90 sec latency 18381.746 ms 1 2259 0.13 MB/sec execute 91 sec latency 19383.321 ms oleg656-server: oleg656-server.virtnet: executing set_default_debug -1 all 1 2259 0.13 MB/sec execute 92 sec latency 20383.856 ms pdsh@oleg656-client: oleg656-server: ssh exited with exit code 1 1 2259 0.13 MB/sec execute 93 sec latency 21390.290 ms Started lustre-MDT0001 01:07:56 (1788584876) targets are mounted 01:07:56 (1788584876) facet_failover done 1 2259 0.13 MB/sec execute 94 sec latency 22390.544 ms 1 2294 0.14 MB/sec execute 95 sec latency 23090.208 ms 1 2348 0.14 MB/sec execute 96 sec latency 131.224 ms 1 2388 0.13 MB/sec execute 97 sec latency 85.097 ms 1 2426 0.13 MB/sec execute 98 sec latency 109.551 ms 1 2467 0.14 MB/sec execute 99 sec latency 129.733 ms 1 cleanup 100 sec oleg656-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0001-mdc-*.mds_server_uuid 1475 0 1 cleanup 101 sec 1 cleanup 102 sec mdc.lustre-MDT0001-mdc-*.mds_server_uuid in FULL state after 0 sec 1 cleanup 103 sec 0 cleanup 104 sec Operation Count AvgLat MaxLat ---------------------------------------- NTCreateX 360 215.224 35077.986 Close 309 12.362 51.785 Rename 15 99.943 187.994 Unlink 37 29.353 72.333 Qpathinfo 336 16.163 122.922 Qfileinfo 90 2.242 15.613 Qfsinfo 42 5.172 30.685 Sfileinfo 48 67.305 179.480 Find 113 13.395 89.018 WriteX 317 13.760 93.382 ReadX 387 2.641 99.713 Flush 34 65.848 124.284 Throughput 0.13872 MB/sec 1 clients 1 procs max_latency=35078.012 ms stopping dbench on /mnt/lustre at Sat Sep 5 01:08:06 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 UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2312 1268992 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 2092 1269212 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 53644 3552572 2% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 5356 3601268 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 59000 7153840 1% /mnt/lustre 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 Sat Sep 5 01:08:14 EDT 2026 waiting for dbench pid 67889 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 12 0.00 MB/sec warmup 1 sec latency 18.560 ms 1 72 1.57 MB/sec warmup 2 sec latency 113.012 ms 1 91 1.40 MB/sec warmup 3 sec latency 813.391 ms 1 110 1.31 MB/sec warmup 4 sec latency 1571.732 ms 1 137 1.20 MB/sec warmup 5 sec latency 199.138 ms 1 174 1.18 MB/sec warmup 6 sec latency 160.695 ms 1 197 1.12 MB/sec warmup 7 sec latency 494.735 ms test_26 fail mds1 3 times 1 239 1.14 MB/sec warmup 8 sec latency 128.951 ms Failing mds1 on oleg656-server 1 268 1.12 MB/sec warmup 9 sec latency 172.434 ms 1 302 1.11 MB/sec warmup 10 sec latency 136.421 ms Stopping /mnt/lustre-mds1 (opts:) on oleg656-server 1 331 1.09 MB/sec warmup 11 sec latency 158.173 ms 1 340 1.02 MB/sec warmup 12 sec latency 594.877 ms 1 340 0.94 MB/sec warmup 13 sec latency 1596.182 ms 1 340 0.88 MB/sec warmup 14 sec latency 2596.567 ms 1 340 0.82 MB/sec warmup 15 sec latency 3596.790 ms 1 340 0.77 MB/sec warmup 16 sec latency 4597.045 ms 1 340 0.72 MB/sec warmup 17 sec latency 5597.298 ms 1 340 0.68 MB/sec warmup 18 sec latency 6597.743 ms 1 340 0.64 MB/sec warmup 19 sec latency 7597.998 ms 01:08:35 (1788584915) shut down facet: mds1 facet_host: oleg656-server facet_failover_host: oleg656-server 1 340 0.00 MB/sec execute 1 sec latency 9598.446 ms 1 340 0.00 MB/sec execute 2 sec latency 10598.847 ms 1 340 0.00 MB/sec execute 3 sec latency 11599.633 ms 1 340 0.00 MB/sec execute 4 sec latency 12601.122 ms 1 340 0.00 MB/sec execute 5 sec latency 13601.418 ms 1 340 0.00 MB/sec execute 6 sec latency 14601.894 ms 1 340 0.00 MB/sec execute 7 sec latency 15602.150 ms 1 340 0.00 MB/sec execute 8 sec latency 16602.409 ms 1 340 0.00 MB/sec execute 9 sec latency 17602.658 ms 1 340 0.00 MB/sec execute 10 sec latency 18603.144 ms Failover mds1 to oleg656-server mount facets: mds1 1 340 0.00 MB/sec execute 11 sec latency 19603.778 ms 1 340 0.00 MB/sec execute 12 sec latency 20604.180 ms 1 340 0.00 MB/sec execute 13 sec latency 21605.042 ms 1 340 0.00 MB/sec execute 14 sec latency 22605.303 ms 1 340 0.00 MB/sec execute 15 sec latency 23619.025 ms 1 340 0.00 MB/sec execute 16 sec latency 24619.286 ms 1 340 0.00 MB/sec execute 17 sec latency 25619.492 ms 1 340 0.00 MB/sec execute 18 sec latency 26619.842 ms 1 340 0.00 MB/sec execute 19 sec latency 27620.046 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 340 0.00 MB/sec execute 20 sec latency 28620.332 ms 1 340 0.00 MB/sec execute 21 sec latency 29620.645 ms 1 340 0.00 MB/sec execute 22 sec latency 30620.882 ms 1 340 0.00 MB/sec execute 23 sec latency 31621.243 ms 1 340 0.00 MB/sec execute 24 sec latency 32623.366 ms 1 340 0.00 MB/sec execute 25 sec latency 33623.731 ms 1 340 0.00 MB/sec execute 26 sec latency 34624.972 ms 1 340 0.00 MB/sec execute 27 sec latency 35625.336 ms 1 340 0.00 MB/sec execute 28 sec latency 36626.803 ms 1 340 0.00 MB/sec execute 29 sec latency 37627.856 ms 1 340 0.00 MB/sec execute 30 sec latency 38632.510 ms 1 340 0.00 MB/sec execute 31 sec latency 39633.129 ms 1 340 0.00 MB/sec execute 32 sec latency 40633.441 ms oleg656-server: oleg656-server.virtnet: executing set_default_debug -1 all 1 340 0.00 MB/sec execute 33 sec latency 41633.958 ms pdsh@oleg656-client: oleg656-server: ssh exited with exit code 1 1 340 0.00 MB/sec execute 34 sec latency 42637.667 ms Started lustre-MDT0000 01:09:09 (1788584949) targets are mounted 01:09:09 (1788584949) facet_failover done 1 365 0.02 MB/sec execute 35 sec latency 42668.955 ms 1 389 0.04 MB/sec execute 36 sec latency 264.719 ms 1 429 0.08 MB/sec execute 37 sec latency 111.330 ms 1 462 0.10 MB/sec execute 38 sec latency 125.553 ms 1 500 0.13 MB/sec execute 39 sec latency 140.380 ms 1 528 0.15 MB/sec execute 40 sec latency 135.245 ms 1 612 0.21 MB/sec execute 41 sec latency 93.550 ms oleg656-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 673 0.21 MB/sec execute 42 sec latency 132.937 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 708 0.21 MB/sec execute 43 sec latency 124.835 ms 1 735 0.21 MB/sec execute 44 sec latency 150.047 ms 1 771 0.20 MB/sec execute 45 sec latency 111.716 ms 1 808 0.20 MB/sec execute 46 sec latency 87.375 ms 1 857 0.20 MB/sec execute 47 sec latency 129.722 ms 1 893 0.20 MB/sec execute 48 sec latency 119.307 ms 1 924 0.19 MB/sec execute 49 sec latency 112.748 ms 1 967 0.19 MB/sec execute 50 sec latency 137.743 ms 1 1000 0.19 MB/sec execute 51 sec latency 88.880 ms 1 1035 0.20 MB/sec execute 52 sec latency 701.454 ms tar: Unexpected EOF in archive tar: Unexpected EOF in archive 1 1063 0.20 MB/sec execute 53 sec latency 874.342 ms 1 1124 0.20 MB/sec execute 54 sec latency 70.783 ms 1 1155 0.19 MB/sec execute 55 sec latency 129.518 ms 1 1190 0.19 MB/sec execute 56 sec latency 107.659 ms 1 1229 0.19 MB/sec execute 57 sec latency 93.667 ms 1 1260 0.19 MB/sec execute 58 sec latency 135.858 ms 1 1395 0.23 MB/sec execute 59 sec latency 98.931 ms 1 1434 0.23 MB/sec execute 60 sec latency 101.597 ms 1 1474 0.23 MB/sec execute 61 sec latency 193.417 ms 1 1523 0.22 MB/sec execute 62 sec latency 132.031 ms 1 1588 0.22 MB/sec execute 63 sec latency 76.512 ms 1 1622 0.22 MB/sec execute 64 sec latency 145.723 ms tar: Error is not recoverable: exiting now dbench killed by signal 15 stopping dbench on /mnt/lustre at Sat Sep 5 01:09:39 EDT 2026 with return code 0 1 1653 0.21 MB/sec execute 65 sec latency 183.782 ms 67889 pts/0 S+ 0:00 dbench -c client.txt 1 -D /mnt/lustre2/d26.replay-dual/run_dbench -t 100 killed dbench main pid 67889 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished