== replay-dual test 26: dbench and tar with mds failover ========================================================== 12:21:09 (1788452469) Starting client oleg320-client.virtnet: -o user_xattr,flock 192.168.203.120@tcp:/lustre /mnt/lustre Started clients oleg320-client.virtnet: 192.168.203.120@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 65679 Started dbench loop with 65680 striped dir -i0 -c2 -H crush /mnt/lustre2/d26.replay-dual/run_dbench striped dir -i0 -c2 -H fnv_1a_64 /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 1968 1269336 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 1756 1269548 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 9756 3580708 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 1544 3605476 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 11300 7186184 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 Sep 3 12:21:15 EDT 2026 waiting for dbench pid 65756 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 32.211 ms 1 51 1.04 MB/sec warmup 2 sec latency 158.686 ms 1 96 1.44 MB/sec warmup 3 sec latency 114.018 ms 1 129 1.44 MB/sec warmup 4 sec latency 226.904 ms 1 155 1.30 MB/sec warmup 5 sec latency 198.070 ms 1 164 1.13 MB/sec warmup 6 sec latency 755.574 ms 1 176 1.01 MB/sec warmup 7 sec latency 1313.901 ms 1 195 0.97 MB/sec warmup 8 sec latency 522.054 ms 1 221 0.95 MB/sec warmup 9 sec latency 217.020 ms 1 263 0.99 MB/sec warmup 10 sec latency 103.327 ms test_26 fail mds1 1 times 1 293 0.98 MB/sec warmup 11 sec latency 203.166 ms 1 323 0.98 MB/sec warmup 12 sec latency 169.232 ms Failing mds1 on oleg320-server 1 352 0.96 MB/sec warmup 13 sec latency 183.377 ms Stopping /mnt/lustre-mds1 (opts:) on oleg320-server 1 397 1.00 MB/sec warmup 14 sec latency 112.649 ms 1 428 1.01 MB/sec warmup 15 sec latency 226.326 ms 1 428 0.94 MB/sec warmup 16 sec latency 1226.664 ms 1 428 0.89 MB/sec warmup 17 sec latency 2226.917 ms 12:21:33 (1788452493) shut down facet: mds1 facet_host: oleg320-server facet_failover_host: oleg320-server 1 428 0.84 MB/sec warmup 18 sec latency 3227.223 ms 1 428 0.79 MB/sec warmup 19 sec latency 4227.490 ms 1 428 0.00 MB/sec execute 1 sec latency 6231.256 ms 1 428 0.00 MB/sec execute 2 sec latency 7231.582 ms 1 428 0.00 MB/sec execute 3 sec latency 8232.895 ms 1 428 0.00 MB/sec execute 4 sec latency 9233.147 ms 1 428 0.00 MB/sec execute 5 sec latency 10233.725 ms 1 428 0.00 MB/sec execute 6 sec latency 11234.888 ms 1 428 0.00 MB/sec execute 7 sec latency 12235.148 ms 1 428 0.00 MB/sec execute 8 sec latency 13246.347 ms Failover mds1 to oleg320-server mount facets: mds1 1 428 0.00 MB/sec execute 9 sec latency 14251.109 ms 1 428 0.00 MB/sec execute 10 sec latency 15251.428 ms 1 428 0.00 MB/sec execute 11 sec latency 16252.107 ms 1 428 0.00 MB/sec execute 12 sec latency 17252.608 ms 1 428 0.00 MB/sec execute 13 sec latency 18255.455 ms 1 428 0.00 MB/sec execute 14 sec latency 19255.913 ms 1 428 0.00 MB/sec execute 15 sec latency 20256.206 ms 1 428 0.00 MB/sec execute 16 sec latency 21260.576 ms 1 428 0.00 MB/sec execute 17 sec latency 22263.648 ms 1 428 0.00 MB/sec execute 18 sec latency 23265.356 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 428 0.00 MB/sec execute 19 sec latency 24266.160 ms 1 428 0.00 MB/sec execute 20 sec latency 25266.466 ms 1 428 0.00 MB/sec execute 21 sec latency 26266.969 ms 1 428 0.00 MB/sec execute 22 sec latency 27267.201 ms 1 428 0.00 MB/sec execute 23 sec latency 28267.573 ms 1 428 0.00 MB/sec execute 24 sec latency 29271.674 ms 1 428 0.00 MB/sec execute 25 sec latency 30271.890 ms 1 428 0.00 MB/sec execute 26 sec latency 31272.158 ms 1 428 0.00 MB/sec execute 27 sec latency 32273.300 ms 1 428 0.00 MB/sec execute 28 sec latency 33276.399 ms oleg320-server: oleg320-server.virtnet: executing set_default_debug -1 all 1 428 0.00 MB/sec execute 29 sec latency 34286.970 ms pdsh@oleg320-client: oleg320-server: ssh exited with exit code 1 1 428 0.00 MB/sec execute 30 sec latency 35287.970 ms Started lustre-MDT0000 12:22:06 (1788452526) targets are mounted 12:22:06 (1788452526) facet_failover done 1 428 0.00 MB/sec execute 31 sec latency 36288.552 ms 1 469 0.04 MB/sec execute 32 sec latency 36337.782 ms 1 508 0.07 MB/sec execute 33 sec latency 143.180 ms 1 552 0.12 MB/sec execute 34 sec latency 183.618 ms 1 606 0.17 MB/sec execute 35 sec latency 579.137 ms 1 651 0.16 MB/sec execute 36 sec latency 126.587 ms 1 682 0.16 MB/sec execute 37 sec latency 120.256 ms oleg320-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 717 0.16 MB/sec execute 38 sec latency 135.831 ms 1 744 0.16 MB/sec execute 39 sec latency 114.203 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 776 0.16 MB/sec execute 40 sec latency 148.941 ms 1 803 0.15 MB/sec execute 41 sec latency 194.925 ms 1 827 0.15 MB/sec execute 42 sec latency 208.039 ms 1 876 0.15 MB/sec execute 43 sec latency 99.050 ms 1 903 0.15 MB/sec execute 44 sec latency 165.598 ms 1 933 0.15 MB/sec execute 45 sec latency 106.516 ms 1 972 0.15 MB/sec execute 46 sec latency 102.519 ms UUID 1K-blocks Used Available Use% Mounted on 1 1029 0.16 MB/sec execute 47 sec latency 94.977 ms lustre-MDT0000_UUID 1414116 2156 1269148 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 1932 1269372 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 41060 3561336 2% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 15324 3591540 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 56384 7152876 1% /mnt/lustre 1 1074 0.16 MB/sec execute 48 sec latency 122.929 ms 1 1119 0.16 MB/sec execute 49 sec latency 105.719 ms 1 1149 0.16 MB/sec execute 50 sec latency 95.018 ms 1 1172 0.15 MB/sec execute 51 sec latency 496.034 ms 1 1180 0.15 MB/sec execute 52 sec latency 1070.570 ms 1 1214 0.15 MB/sec execute 53 sec latency 148.871 ms 1 1245 0.15 MB/sec execute 54 sec latency 120.644 ms 1 1278 0.15 MB/sec execute 55 sec latency 174.028 ms 1 1403 0.19 MB/sec execute 56 sec latency 73.497 ms 1 1446 0.19 MB/sec execute 57 sec latency 89.494 ms test_26 fail mds2 2 times 1 1491 0.19 MB/sec execute 58 sec latency 116.224 ms 1 1519 0.19 MB/sec execute 59 sec latency 124.030 ms Failing mds2 on oleg320-server 1 1566 0.18 MB/sec execute 60 sec latency 71.755 ms 1 1599 0.18 MB/sec execute 61 sec latency 201.887 ms Stopping /mnt/lustre-mds2 (opts:) on oleg320-server 1 1628 0.18 MB/sec execute 62 sec latency 123.213 ms 1 1660 0.18 MB/sec execute 63 sec latency 164.331 ms 1 1696 0.17 MB/sec execute 64 sec latency 119.393 ms 1 1750 0.17 MB/sec execute 65 sec latency 98.535 ms 12:22:41 (1788452561) shut down facet: mds2 facet_host: oleg320-server facet_failover_host: oleg320-server 1 1810 0.17 MB/sec execute 66 sec latency 79.814 ms 1 1873 0.17 MB/sec execute 67 sec latency 68.879 ms 1 1956 0.17 MB/sec execute 68 sec latency 90.145 ms 1 2018 0.17 MB/sec execute 69 sec latency 81.272 ms 1 2108 0.16 MB/sec execute 70 sec latency 78.175 ms 1 2173 0.16 MB/sec execute 71 sec latency 62.150 ms 1 2259 0.16 MB/sec execute 72 sec latency 86.322 ms 1 2259 0.16 MB/sec execute 73 sec latency 1084.783 ms 1 2259 0.16 MB/sec execute 74 sec latency 2085.014 ms 1 2259 0.16 MB/sec execute 75 sec latency 3085.659 ms Failover mds2 to oleg320-server mount facets: mds2 1 2259 0.15 MB/sec execute 76 sec latency 4091.111 ms 1 2259 0.15 MB/sec execute 77 sec latency 5091.610 ms 1 2259 0.15 MB/sec execute 78 sec latency 6092.292 ms 1 2259 0.15 MB/sec execute 79 sec latency 7097.478 ms 1 2259 0.15 MB/sec execute 80 sec latency 8097.822 ms 1 2259 0.14 MB/sec execute 81 sec latency 9099.534 ms 1 2259 0.14 MB/sec execute 82 sec latency 10106.346 ms 1 2259 0.14 MB/sec execute 83 sec latency 11117.546 ms 1 2259 0.14 MB/sec execute 84 sec latency 12117.786 ms 1 2259 0.14 MB/sec execute 85 sec latency 13117.998 ms 1 2259 0.14 MB/sec execute 86 sec latency 14118.331 ms Start mds2: mount -t lustre -o localrecov /dev/mapper/mds2_flakey /mnt/lustre-mds2 1 2259 0.13 MB/sec execute 87 sec latency 15121.141 ms 1 2259 0.13 MB/sec execute 88 sec latency 16121.853 ms 1 2259 0.13 MB/sec execute 89 sec latency 17129.100 ms 1 2259 0.13 MB/sec execute 90 sec latency 18129.647 ms 1 2259 0.13 MB/sec execute 91 sec latency 19129.881 ms 1 2259 0.13 MB/sec execute 92 sec latency 20130.166 ms oleg320-server: oleg320-server.virtnet: executing set_default_debug -1 all 1 2259 0.13 MB/sec execute 93 sec latency 21132.346 ms pdsh@oleg320-client: oleg320-server: ssh exited with exit code 1 1 2259 0.12 MB/sec execute 94 sec latency 22133.427 ms Started lustre-MDT0001 12:23:10 (1788452590) targets are mounted 12:23:10 (1788452590) facet_failover done 1 2259 0.12 MB/sec execute 95 sec latency 23133.626 ms 1 2330 0.13 MB/sec execute 96 sec latency 23430.317 ms 1 2359 0.13 MB/sec execute 97 sec latency 113.445 ms 1 2396 0.13 MB/sec execute 98 sec latency 96.946 ms 1 2434 0.13 MB/sec execute 99 sec latency 99.011 ms 1 cleanup 100 sec 1 cleanup 101 sec 1 cleanup 102 sec oleg320-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0001-mdc-*.mds_server_uuid 1475 0 1 cleanup 103 sec 0 cleanup 104 sec 0 cleanup 104 sec Operation Count AvgLat MaxLat ---------------------------------------- NTCreateX 356 121.290 23430.298 Close 306 131.657 36337.752 Rename 14 97.831 139.109 Unlink 36 32.847 86.299 Qpathinfo 325 17.646 121.012 Qfileinfo 89 2.305 24.125 Qfsinfo 41 4.205 33.296 Sfileinfo 45 66.346 194.908 Find 110 12.679 84.415 WriteX 308 13.948 94.078 ReadX 383 3.015 148.846 Flush 33 55.437 116.191 Throughput 0.130852 MB/sec 1 clients 1 procs max_latency=36337.782 ms stopping dbench on /mnt/lustre at Thu Sep 3 12:23:20 EDT 2026 with return code 0 mdc.lustre-MDT0001-mdc-*.mds_server_uuid in FULL state after 0 sec clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished 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 UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2356 1268948 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 2108 1269196 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 11168 3595020 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 11484 3573320 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 22652 7168340 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 Sep 3 12:23:28 EDT 2026 waiting for dbench pid 67921 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 11 0.00 MB/sec warmup 1 sec latency 18.058 ms 1 72 1.57 MB/sec warmup 2 sec latency 123.413 ms 1 121 1.83 MB/sec warmup 3 sec latency 226.878 ms 1 148 1.57 MB/sec warmup 4 sec latency 190.622 ms 1 180 1.46 MB/sec warmup 5 sec latency 187.004 ms 1 197 1.31 MB/sec warmup 6 sec latency 402.110 ms 1 219 1.20 MB/sec warmup 7 sec latency 429.781 ms 1 255 1.21 MB/sec warmup 8 sec latency 128.869 ms 1 297 1.22 MB/sec warmup 9 sec latency 112.765 ms test_26 fail mds1 3 times 1 336 1.21 MB/sec warmup 10 sec latency 114.812 ms 1 368 1.18 MB/sec warmup 11 sec latency 142.596 ms Failing mds1 on oleg320-server 1 410 1.20 MB/sec warmup 12 sec latency 133.299 ms Stopping /mnt/lustre-mds1 (opts:) on oleg320-server 1 447 1.20 MB/sec warmup 13 sec latency 108.858 ms 1 485 1.21 MB/sec warmup 14 sec latency 128.637 ms 1 501 1.16 MB/sec warmup 15 sec latency 738.439 ms 1 501 1.09 MB/sec warmup 16 sec latency 1738.949 ms 1 501 1.03 MB/sec warmup 17 sec latency 2739.518 ms 1 501 0.97 MB/sec warmup 18 sec latency 3746.232 ms 1 501 0.92 MB/sec warmup 19 sec latency 4746.470 ms 1 501 0.00 MB/sec execute 1 sec latency 6747.786 ms 12:23:49 (1788452629) shut down facet: mds1 facet_host: oleg320-server facet_failover_host: oleg320-server 1 501 0.00 MB/sec execute 2 sec latency 7747.986 ms 1 501 0.00 MB/sec execute 3 sec latency 8748.198 ms 1 501 0.00 MB/sec execute 4 sec latency 9748.412 ms 1 501 0.00 MB/sec execute 5 sec latency 10752.843 ms 1 501 0.00 MB/sec execute 6 sec latency 11753.302 ms 1 501 0.00 MB/sec execute 7 sec latency 12753.547 ms 1 501 0.00 MB/sec execute 8 sec latency 13753.749 ms 1 501 0.00 MB/sec execute 9 sec latency 14755.276 ms 1 501 0.00 MB/sec execute 10 sec latency 15755.486 ms 1 501 0.00 MB/sec execute 11 sec latency 16756.931 ms Failover mds1 to oleg320-server mount facets: mds1 1 501 0.00 MB/sec execute 12 sec latency 17759.517 ms 1 501 0.00 MB/sec execute 13 sec latency 18759.693 ms 1 501 0.00 MB/sec execute 14 sec latency 19759.924 ms 1 501 0.00 MB/sec execute 15 sec latency 20762.679 ms 1 501 0.00 MB/sec execute 16 sec latency 21763.618 ms 1 501 0.00 MB/sec execute 17 sec latency 22764.003 ms 1 501 0.00 MB/sec execute 18 sec latency 23767.462 ms 1 501 0.00 MB/sec execute 19 sec latency 24770.634 ms 1 501 0.00 MB/sec execute 20 sec latency 25771.768 ms 1 501 0.00 MB/sec execute 21 sec latency 26772.017 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 501 0.00 MB/sec execute 22 sec latency 27772.230 ms 1 501 0.00 MB/sec execute 23 sec latency 28773.299 ms 1 501 0.00 MB/sec execute 24 sec latency 29773.564 ms 1 501 0.00 MB/sec execute 25 sec latency 30773.780 ms 1 501 0.00 MB/sec execute 26 sec latency 31776.569 ms 1 501 0.00 MB/sec execute 27 sec latency 32776.858 ms 1 501 0.00 MB/sec execute 28 sec latency 33777.150 ms 1 501 0.00 MB/sec execute 29 sec latency 34777.530 ms 1 501 0.00 MB/sec execute 30 sec latency 35778.645 ms 1 501 0.00 MB/sec execute 31 sec latency 36778.883 ms 1 501 0.00 MB/sec execute 32 sec latency 37779.198 ms oleg320-server: oleg320-server.virtnet: executing set_default_debug -1 all 1 501 0.00 MB/sec execute 33 sec latency 38779.505 ms pdsh@oleg320-client: oleg320-server: ssh exited with exit code 1 1 501 0.00 MB/sec execute 34 sec latency 39779.756 ms Started lustre-MDT0000 12:24:23 (1788452663) targets are mounted 12:24:23 (1788452663) facet_failover done 1 501 0.00 MB/sec execute 35 sec latency 40782.002 ms 1 543 0.05 MB/sec execute 36 sec latency 40913.715 ms 1 639 0.10 MB/sec execute 37 sec latency 107.012 ms 1 674 0.10 MB/sec execute 38 sec latency 122.021 ms 1 710 0.10 MB/sec execute 39 sec latency 127.305 ms 1 738 0.10 MB/sec execute 40 sec latency 129.491 ms 1 778 0.09 MB/sec execute 41 sec latency 171.266 ms oleg320-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 804 0.10 MB/sec execute 42 sec latency 142.633 ms 1 851 0.10 MB/sec execute 43 sec latency 123.273 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 881 0.10 MB/sec execute 44 sec latency 175.877 ms 1 884 0.09 MB/sec execute 45 sec latency 876.716 ms 1 903 0.09 MB/sec execute 46 sec latency 1184.908 ms 1 940 0.09 MB/sec execute 47 sec latency 127.749 ms 1 977 0.09 MB/sec execute 48 sec latency 146.856 ms 1 1021 0.10 MB/sec execute 49 sec latency 114.940 ms 1 1077 0.11 MB/sec execute 50 sec latency 68.783 ms 1 1134 0.11 MB/sec execute 51 sec latency 105.809 ms tar: Unexpected EOF in archive tar: Unexpected EOF in archive 1 1185 0.11 MB/sec execute 52 sec latency 86.027 ms 1 1231 0.11 MB/sec execute 53 sec latency 73.865 ms 1 1277 0.10 MB/sec execute 54 sec latency 102.288 ms 1 1419 0.16 MB/sec execute 55 sec latency 99.469 ms 1 1468 0.15 MB/sec execute 56 sec latency 280.864 ms 1 1504 0.15 MB/sec execute 57 sec latency 179.287 ms 1 1572 0.15 MB/sec execute 58 sec latency 66.115 ms 1 1625 0.15 MB/sec execute 59 sec latency 104.162 ms 1 1669 0.15 MB/sec execute 60 sec latency 143.154 ms 1 1711 0.14 MB/sec execute 61 sec latency 124.929 ms tar: Error is not recoverable: exiting now dbench killed by signal 15 stopping dbench on /mnt/lustre at Thu Sep 3 12:24:50 EDT 2026 with return code 0 1 1777 0.14 MB/sec execute 62 sec latency 94.749 ms 67921 pts/0 S+ 0:00 dbench -c client.txt 1 -D /mnt/lustre2/d26.replay-dual/run_dbench -t 100 killed dbench main pid 67921 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished