== replay-dual test 26: dbench and tar with mds failover ========================================================== 08:02:12 (1787140932) Starting client oleg424-client.virtnet: -o user_xattr,flock 192.168.204.124@tcp:/lustre /mnt/lustre Started clients oleg424-client.virtnet: 192.168.204.124@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 65667 Started dbench loop with 65669 striped dir -i0 -c2 -H crush2 /mnt/lustre/d26.replay-dual/run_tar 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 UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 1968 1269336 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 1756 1269548 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 1564 3580652 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 1544 3605476 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 3108 7186128 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 Wed Aug 19 08:02:18 EDT 2026 waiting for dbench pid 65737 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 8 0.00 MB/sec warmup 1 sec latency 113.346 ms 1 52 1.05 MB/sec warmup 2 sec latency 115.660 ms 1 98 1.48 MB/sec warmup 3 sec latency 151.582 ms 1 122 1.37 MB/sec warmup 4 sec latency 238.312 ms 1 153 1.29 MB/sec warmup 5 sec latency 156.434 ms 1 164 1.13 MB/sec warmup 6 sec latency 448.710 ms 1 164 0.97 MB/sec warmup 7 sec latency 1449.056 ms 1 173 0.88 MB/sec warmup 8 sec latency 2046.874 ms 1 186 0.83 MB/sec warmup 9 sec latency 626.882 ms 1 214 0.84 MB/sec warmup 10 sec latency 187.915 ms 1 246 0.85 MB/sec warmup 11 sec latency 138.954 ms test_26 fail mds1 1 times 1 271 0.85 MB/sec warmup 12 sec latency 238.290 ms 1 298 0.84 MB/sec warmup 13 sec latency 153.578 ms Failing mds1 on oleg424-server 1 323 0.84 MB/sec warmup 14 sec latency 186.582 ms Stopping /mnt/lustre-mds1 (opts:) on oleg424-server 1 349 0.83 MB/sec warmup 15 sec latency 211.949 ms 1 381 0.85 MB/sec warmup 16 sec latency 142.990 ms 1 389 0.81 MB/sec warmup 17 sec latency 730.073 ms 1 389 0.77 MB/sec warmup 18 sec latency 1730.989 ms 1 389 0.73 MB/sec warmup 19 sec latency 2732.194 ms 08:02:39 (1787140959) shut down facet: mds1 facet_host: oleg424-server facet_failover_host: oleg424-server 1 389 0.00 MB/sec execute 1 sec latency 4732.873 ms 1 389 0.00 MB/sec execute 2 sec latency 5733.092 ms 1 389 0.00 MB/sec execute 3 sec latency 6733.422 ms 1 389 0.00 MB/sec execute 4 sec latency 7733.769 ms 1 389 0.00 MB/sec execute 5 sec latency 8733.988 ms 1 389 0.00 MB/sec execute 6 sec latency 9734.206 ms 1 389 0.00 MB/sec execute 7 sec latency 10734.918 ms 1 389 0.00 MB/sec execute 8 sec latency 11736.854 ms 1 389 0.00 MB/sec execute 9 sec latency 12737.104 ms 1 389 0.00 MB/sec execute 10 sec latency 13737.314 ms Failover mds1 to oleg424-server mount facets: mds1 1 389 0.00 MB/sec execute 11 sec latency 14737.547 ms 1 389 0.00 MB/sec execute 12 sec latency 15738.396 ms 1 389 0.00 MB/sec execute 13 sec latency 16738.681 ms 1 389 0.00 MB/sec execute 14 sec latency 17739.198 ms 1 389 0.00 MB/sec execute 15 sec latency 18743.220 ms 1 389 0.00 MB/sec execute 16 sec latency 19743.897 ms 1 389 0.00 MB/sec execute 17 sec latency 20744.513 ms 1 389 0.00 MB/sec execute 18 sec latency 21744.950 ms 1 389 0.00 MB/sec execute 19 sec latency 22745.270 ms 1 389 0.00 MB/sec execute 20 sec latency 23745.561 ms 1 389 0.00 MB/sec execute 21 sec latency 24748.177 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 389 0.00 MB/sec execute 22 sec latency 25748.408 ms 1 389 0.00 MB/sec execute 23 sec latency 26749.156 ms 1 389 0.00 MB/sec execute 24 sec latency 27749.531 ms 1 389 0.00 MB/sec execute 25 sec latency 28749.832 ms 1 389 0.00 MB/sec execute 26 sec latency 29750.103 ms 1 389 0.00 MB/sec execute 27 sec latency 30752.807 ms 1 389 0.00 MB/sec execute 28 sec latency 31754.404 ms 1 389 0.00 MB/sec execute 29 sec latency 32754.648 ms 1 389 0.00 MB/sec execute 30 sec latency 33755.660 ms 1 389 0.00 MB/sec execute 31 sec latency 34759.088 ms oleg424-server: oleg424-server.virtnet: executing set_default_debug -1 all 1 389 0.00 MB/sec execute 32 sec latency 35759.301 ms pdsh@oleg424-client: oleg424-server: ssh exited with exit code 1 1 389 0.00 MB/sec execute 33 sec latency 36761.408 ms Started lustre-MDT0000 08:03:13 (1787140993) targets are mounted 08:03:13 (1787140993) facet_failover done 1 400 0.01 MB/sec execute 34 sec latency 37368.654 ms 1 445 0.05 MB/sec execute 35 sec latency 157.393 ms 1 477 0.08 MB/sec execute 36 sec latency 157.016 ms 1 499 0.10 MB/sec execute 37 sec latency 219.602 ms 1 513 0.10 MB/sec execute 38 sec latency 240.133 ms 1 552 0.14 MB/sec execute 39 sec latency 171.335 ms 1 579 0.14 MB/sec execute 40 sec latency 728.441 ms 1 614 0.17 MB/sec execute 41 sec latency 173.515 ms 1 653 0.17 MB/sec execute 42 sec latency 123.422 ms 1 669 0.17 MB/sec execute 43 sec latency 211.621 ms oleg424-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 689 0.17 MB/sec execute 44 sec latency 178.525 ms 1 704 0.16 MB/sec execute 45 sec latency 247.946 ms 1 721 0.16 MB/sec execute 46 sec latency 156.327 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 735 0.16 MB/sec execute 47 sec latency 209.705 ms 1 761 0.16 MB/sec execute 48 sec latency 138.500 ms 1 776 0.15 MB/sec execute 49 sec latency 230.604 ms 1 801 0.15 MB/sec execute 50 sec latency 179.039 ms 1 827 0.15 MB/sec execute 51 sec latency 137.517 ms 1 874 0.15 MB/sec execute 52 sec latency 117.572 ms 1 910 0.15 MB/sec execute 53 sec latency 117.323 ms 1 943 0.15 MB/sec execute 54 sec latency 97.598 ms 1 971 0.15 MB/sec execute 55 sec latency 156.529 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2124 1269180 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 1896 1269408 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 42176 3557544 2% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 7632 3596720 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 49808 7154264 1% /mnt/lustre 1 990 0.14 MB/sec execute 56 sec latency 147.785 ms 1 1050 0.16 MB/sec execute 57 sec latency 161.334 ms 1 1080 0.16 MB/sec execute 58 sec latency 150.677 ms 1 1124 0.15 MB/sec execute 59 sec latency 113.681 ms 1 1145 0.15 MB/sec execute 60 sec latency 123.716 ms 1 1172 0.15 MB/sec execute 61 sec latency 212.566 ms 1 1172 0.15 MB/sec execute 62 sec latency 1176.140 ms 1 1196 0.15 MB/sec execute 63 sec latency 1365.436 ms 1 1226 0.14 MB/sec execute 64 sec latency 102.309 ms 1 1259 0.14 MB/sec execute 65 sec latency 128.155 ms 1 1376 0.18 MB/sec execute 66 sec latency 136.080 ms 1 1406 0.18 MB/sec execute 67 sec latency 106.770 ms 1 1461 0.18 MB/sec execute 68 sec latency 84.616 ms test_26 fail mds2 2 times 1 1497 0.18 MB/sec execute 69 sec latency 152.780 ms 1 1518 0.17 MB/sec execute 70 sec latency 174.272 ms Failing mds2 on oleg424-server 1 1560 0.17 MB/sec execute 71 sec latency 129.093 ms Stopping /mnt/lustre-mds2 (opts:) on oleg424-server 1 1605 0.17 MB/sec execute 72 sec latency 121.756 ms 1 1646 0.17 MB/sec execute 73 sec latency 120.543 ms 1 1677 0.17 MB/sec execute 74 sec latency 169.008 ms 1 1704 0.16 MB/sec execute 75 sec latency 135.788 ms 1 1769 0.16 MB/sec execute 76 sec latency 134.769 ms 08:03:55 (1787141035) shut down facet: mds2 facet_host: oleg424-server facet_failover_host: oleg424-server 1 1814 0.16 MB/sec execute 77 sec latency 117.665 ms 1 1846 0.16 MB/sec execute 78 sec latency 131.602 ms 1 1901 0.16 MB/sec execute 79 sec latency 124.043 ms 1 1972 0.16 MB/sec execute 80 sec latency 95.992 ms 1 2018 0.16 MB/sec execute 81 sec latency 87.491 ms 1 2083 0.16 MB/sec execute 82 sec latency 112.481 ms 1 2162 0.15 MB/sec execute 83 sec latency 56.501 ms 1 2214 0.15 MB/sec execute 84 sec latency 108.712 ms 1 2259 0.15 MB/sec execute 85 sec latency 550.057 ms 1 2259 0.15 MB/sec execute 86 sec latency 1550.219 ms Failover mds2 to oleg424-server mount facets: mds2 1 2259 0.15 MB/sec execute 87 sec latency 2550.352 ms 1 2259 0.15 MB/sec execute 88 sec latency 3550.822 ms 1 2259 0.15 MB/sec execute 89 sec latency 4551.144 ms 1 2259 0.14 MB/sec execute 90 sec latency 5556.353 ms 1 2259 0.14 MB/sec execute 91 sec latency 6557.574 ms 1 2259 0.14 MB/sec execute 92 sec latency 7557.797 ms 1 2259 0.14 MB/sec execute 93 sec latency 8558.088 ms 1 2259 0.14 MB/sec execute 94 sec latency 9558.424 ms 1 2259 0.14 MB/sec execute 95 sec latency 10558.900 ms 1 2259 0.13 MB/sec execute 96 sec latency 11559.211 ms Start mds2: mount -t lustre -o localrecov /dev/mapper/mds2_flakey /mnt/lustre-mds2 1 2259 0.13 MB/sec execute 97 sec latency 12562.350 ms 1 2259 0.13 MB/sec execute 98 sec latency 13565.571 ms 1 2259 0.13 MB/sec execute 99 sec latency 14566.746 ms 1 cleanup 100 sec 1 cleanup 101 sec 1 cleanup 102 sec oleg424-server: oleg424-server.virtnet: executing set_default_debug -1 all 1 cleanup 103 sec 1 cleanup 104 sec pdsh@oleg424-client: oleg424-server: ssh exited with exit code 1 1 cleanup 105 sec Started lustre-MDT0001 08:04:24 (1787141064) targets are mounted 08:04:24 (1787141064) facet_failover done 1 cleanup 106 sec 1 cleanup 107 sec 1 cleanup 108 sec 1 cleanup 109 sec 0 cleanup 110 sec Operation Count AvgLat MaxLat ---------------------------------------- NTCreateX 334 245.900 37368.631 Close 290 14.063 73.672 Rename 11 119.720 212.502 Unlink 30 38.261 72.292 Qpathinfo 295 17.880 109.144 Qfileinfo 83 3.532 46.495 Qfsinfo 33 6.683 28.598 Sfileinfo 34 86.471 209.686 Find 92 15.915 102.778 WriteX 291 17.430 108.951 ReadX 348 2.997 108.481 Flush 30 82.081 152.758 Throughput 0.130648 MB/sec 1 clients 1 procs max_latency=37368.654 ms stopping dbench on /mnt/lustre at Wed Aug 19 08:04:29 EDT 2026 with return code 0 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished oleg424-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0001-mdc-*.mds_server_uuid 1475 0 striped dir -i0 -c2 -H all_char /mnt/lustre2/d26.replay-dual/run_dbench mdc.lustre-MDT0001-mdc-*.mds_server_uuid in FULL state after 0 sec 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 Aug 19 08:04:39 EDT 2026 waiting for dbench pid 67877 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 22.708 ms 1 75 1.61 MB/sec warmup 2 sec latency 133.598 ms UUID 1K-blocks Used Available Use% Mounted on 1 113 1.75 MB/sec warmup 3 sec latency 269.262 ms lustre-MDT0000_UUID 1414116 2380 1268924 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 2128 1269176 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 19488 3586680 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 27148 3578324 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 46636 7165004 1% /mnt/lustre 1 132 1.44 MB/sec warmup 4 sec latency 242.814 ms 1 155 1.31 MB/sec warmup 5 sec latency 203.431 ms 1 182 1.22 MB/sec warmup 6 sec latency 209.930 ms 1 199 1.12 MB/sec warmup 7 sec latency 491.500 ms 1 239 1.14 MB/sec warmup 8 sec latency 146.973 ms 1 262 1.10 MB/sec warmup 9 sec latency 469.308 ms 1 262 0.99 MB/sec warmup 10 sec latency 1469.600 ms 1 287 0.97 MB/sec warmup 11 sec latency 1856.140 ms 1 321 0.97 MB/sec warmup 12 sec latency 147.541 ms 1 361 0.99 MB/sec warmup 13 sec latency 140.223 ms test_26 fail mds1 3 times 1 397 1.00 MB/sec warmup 14 sec latency 138.708 ms 1 429 1.01 MB/sec warmup 15 sec latency 135.868 ms Failing mds1 on oleg424-server 1 469 1.03 MB/sec warmup 16 sec latency 141.269 ms Stopping /mnt/lustre-mds1 (opts:) on oleg424-server 1 508 1.03 MB/sec warmup 17 sec latency 109.280 ms 1 578 1.08 MB/sec warmup 18 sec latency 121.354 ms 1 600 1.10 MB/sec warmup 19 sec latency 775.145 ms 1 600 0.00 MB/sec execute 1 sec latency 2775.588 ms 1 600 0.00 MB/sec execute 2 sec latency 3776.068 ms 1 600 0.00 MB/sec execute 3 sec latency 4776.354 ms 1 600 0.00 MB/sec execute 4 sec latency 5777.255 ms 1 600 0.00 MB/sec execute 5 sec latency 6777.549 ms 1 600 0.00 MB/sec execute 6 sec latency 7782.062 ms 08:05:06 (1787141106) shut down facet: mds1 facet_host: oleg424-server facet_failover_host: oleg424-server 1 600 0.00 MB/sec execute 7 sec latency 8782.320 ms 1 600 0.00 MB/sec execute 8 sec latency 9782.681 ms 1 600 0.00 MB/sec execute 9 sec latency 10782.930 ms 1 600 0.00 MB/sec execute 10 sec latency 11783.222 ms 1 600 0.00 MB/sec execute 11 sec latency 12783.472 ms 1 600 0.00 MB/sec execute 12 sec latency 13783.669 ms 1 600 0.00 MB/sec execute 13 sec latency 14784.009 ms 1 600 0.00 MB/sec execute 14 sec latency 15785.146 ms 1 600 0.00 MB/sec execute 15 sec latency 16785.379 ms 1 600 0.00 MB/sec execute 16 sec latency 17789.458 ms 1 600 0.00 MB/sec execute 17 sec latency 18795.022 ms Failover mds1 to oleg424-server mount facets: mds1 1 600 0.00 MB/sec execute 18 sec latency 19795.409 ms 1 600 0.00 MB/sec execute 19 sec latency 20796.800 ms 1 600 0.00 MB/sec execute 20 sec latency 21797.078 ms 1 600 0.00 MB/sec execute 21 sec latency 22797.700 ms 1 600 0.00 MB/sec execute 22 sec latency 23805.235 ms 1 600 0.00 MB/sec execute 23 sec latency 24805.420 ms 1 600 0.00 MB/sec execute 24 sec latency 25805.655 ms 1 600 0.00 MB/sec execute 25 sec latency 26808.416 ms 1 600 0.00 MB/sec execute 26 sec latency 27808.681 ms 1 600 0.00 MB/sec execute 27 sec latency 28808.953 ms 1 600 0.00 MB/sec execute 28 sec latency 29809.332 ms 1 600 0.00 MB/sec execute 29 sec latency 30810.120 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 600 0.00 MB/sec execute 30 sec latency 31810.320 ms 1 600 0.00 MB/sec execute 31 sec latency 32810.650 ms 1 600 0.00 MB/sec execute 32 sec latency 33812.079 ms 1 600 0.00 MB/sec execute 33 sec latency 34812.309 ms 1 600 0.00 MB/sec execute 34 sec latency 35814.128 ms 1 600 0.00 MB/sec execute 35 sec latency 36814.356 ms 1 600 0.00 MB/sec execute 36 sec latency 37817.261 ms 1 600 0.00 MB/sec execute 37 sec latency 38817.583 ms oleg424-server: oleg424-server.virtnet: executing set_default_debug -1 all 1 600 0.00 MB/sec execute 38 sec latency 39819.663 ms 1 600 0.00 MB/sec execute 39 sec latency 40821.624 ms pdsh@oleg424-client: oleg424-server: ssh exited with exit code 1 1 639 0.00 MB/sec execute 40 sec latency 41126.479 ms Started lustre-MDT0000 08:05:39 (1787141139) targets are mounted 08:05:39 (1787141139) facet_failover done 1 674 0.00 MB/sec execute 41 sec latency 163.423 ms 1 708 0.01 MB/sec execute 42 sec latency 135.911 ms 1 731 0.01 MB/sec execute 43 sec latency 148.396 ms 1 767 0.01 MB/sec execute 44 sec latency 109.752 ms 1 799 0.01 MB/sec execute 45 sec latency 117.000 ms 1 849 0.01 MB/sec execute 46 sec latency 138.529 ms 1 882 0.01 MB/sec execute 47 sec latency 108.560 ms oleg424-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 884 0.01 MB/sec execute 48 sec latency 995.357 ms 1 903 0.01 MB/sec execute 49 sec latency 1129.721 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 933 0.02 MB/sec execute 50 sec latency 114.512 ms 1 970 0.02 MB/sec execute 51 sec latency 156.115 ms 1 997 0.02 MB/sec execute 52 sec latency 115.140 ms 1 1047 0.04 MB/sec execute 53 sec latency 120.521 ms 1 1113 0.04 MB/sec execute 54 sec latency 68.547 ms 1 1160 0.04 MB/sec execute 55 sec latency 111.536 ms 1 1216 0.04 MB/sec execute 56 sec latency 76.079 ms 1 1259 0.04 MB/sec execute 57 sec latency 103.587 ms tar: Unexpected EOF in archive tar: Unexpected EOF in archive 1 1399 0.09 MB/sec execute 58 sec latency 69.070 ms 1 1447 0.09 MB/sec execute 59 sec latency 102.545 ms 1 1486 0.08 MB/sec execute 60 sec latency 202.390 ms 1 1532 0.08 MB/sec execute 61 sec latency 83.341 ms 1 1591 0.08 MB/sec execute 62 sec latency 73.297 ms 1 1634 0.08 MB/sec execute 63 sec latency 126.678 ms 1 1686 0.08 MB/sec execute 64 sec latency 112.693 ms 1 1747 0.08 MB/sec execute 65 sec latency 159.116 ms 1 1810 0.08 MB/sec execute 66 sec latency 123.272 ms 1 1849 0.08 MB/sec execute 67 sec latency 97.196 ms tar: Error is not recoverable: exiting now 1 1888 0.08 MB/sec execute 68 sec latency 125.554 ms dbench killed by signal 15 stopping dbench on /mnt/lustre at Wed Aug 19 08:06:07 EDT 2026 with return code 0 67877 pts/0 S+ 0:00 dbench -c client.txt 1 -D /mnt/lustre2/d26.replay-dual/run_dbench -t 100 killed dbench main pid 67877 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished