== replay-dual test 26: dbench and tar with mds failover ========================================================== 11:13:03 (1789053183) Starting client oleg331-client.virtnet: -o user_xattr,flock 192.168.203.131@tcp:/lustre /mnt/lustre Started clients oleg331-client.virtnet: 192.168.203.131@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 65637 Started dbench loop with 65639 striped dir -i0 -c2 -H all_char /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 1940 1269364 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 1764 1269540 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 1564 3605456 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 9736 3593088 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 11300 7198544 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 10 11:13:10 EDT 2026 waiting for dbench pid 65719 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 29.014 ms 1 51 1.05 MB/sec warmup 2 sec latency 141.304 ms 1 91 1.39 MB/sec warmup 3 sec latency 225.750 ms 1 126 1.41 MB/sec warmup 4 sec latency 181.387 ms 1 157 1.30 MB/sec warmup 5 sec latency 156.428 ms 1 181 1.22 MB/sec warmup 6 sec latency 195.716 ms 1 197 1.12 MB/sec warmup 7 sec latency 547.312 ms 1 239 1.14 MB/sec warmup 8 sec latency 181.322 ms 1 279 1.16 MB/sec warmup 9 sec latency 218.714 ms test_26 fail mds1 1 times 1 305 1.12 MB/sec warmup 10 sec latency 158.296 ms 1 330 1.09 MB/sec warmup 11 sec latency 197.359 ms Failing mds1 on oleg331-server 1 357 1.06 MB/sec warmup 12 sec latency 216.325 ms Stopping /mnt/lustre-mds1 (opts:) on oleg331-server 1 389 1.06 MB/sec warmup 13 sec latency 146.622 ms 1 422 1.06 MB/sec warmup 14 sec latency 138.855 ms 1 456 1.06 MB/sec warmup 15 sec latency 121.309 ms 1 501 1.09 MB/sec warmup 16 sec latency 135.090 ms 11:13:27 (1789053207) shut down facet: mds1 facet_host: oleg331-server facet_failover_host: oleg331-server 1 501 1.03 MB/sec warmup 17 sec latency 1135.641 ms 1 501 0.97 MB/sec warmup 18 sec latency 2136.567 ms 1 501 0.92 MB/sec warmup 19 sec latency 3136.830 ms 1 501 0.00 MB/sec execute 1 sec latency 5137.224 ms 1 501 0.00 MB/sec execute 2 sec latency 6137.452 ms 1 501 0.00 MB/sec execute 3 sec latency 7139.590 ms 1 501 0.00 MB/sec execute 4 sec latency 8143.153 ms 1 501 0.00 MB/sec execute 5 sec latency 9143.368 ms 1 501 0.00 MB/sec execute 6 sec latency 10145.573 ms 1 501 0.00 MB/sec execute 7 sec latency 11146.966 ms Failover mds1 to oleg331-server mount facets: mds1 1 501 0.00 MB/sec execute 8 sec latency 12147.223 ms 1 501 0.00 MB/sec execute 9 sec latency 13147.498 ms 1 501 0.00 MB/sec execute 10 sec latency 14147.732 ms 1 501 0.00 MB/sec execute 11 sec latency 15149.305 ms 1 501 0.00 MB/sec execute 12 sec latency 16159.646 ms 1 501 0.00 MB/sec execute 13 sec latency 17160.125 ms 1 501 0.00 MB/sec execute 14 sec latency 18160.373 ms 1 501 0.00 MB/sec execute 15 sec latency 19163.806 ms 1 501 0.00 MB/sec execute 16 sec latency 20164.118 ms 1 501 0.00 MB/sec execute 17 sec latency 21165.934 ms 1 501 0.00 MB/sec execute 18 sec latency 22166.298 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 501 0.00 MB/sec execute 19 sec latency 23169.724 ms 1 501 0.00 MB/sec execute 20 sec latency 24171.727 ms 1 501 0.00 MB/sec execute 21 sec latency 25172.432 ms 1 501 0.00 MB/sec execute 22 sec latency 26172.651 ms 1 501 0.00 MB/sec execute 23 sec latency 27177.769 ms 1 501 0.00 MB/sec execute 24 sec latency 28177.924 ms 1 501 0.00 MB/sec execute 25 sec latency 29178.112 ms 1 501 0.00 MB/sec execute 26 sec latency 30178.818 ms oleg331-server: oleg331-server.virtnet: executing set_default_debug -1 all 1 501 0.00 MB/sec execute 27 sec latency 31179.640 ms pdsh@oleg331-client: oleg331-server: ssh exited with exit code 1 1 501 0.00 MB/sec execute 28 sec latency 32180.256 ms Started lustre-MDT0000 11:13:59 (1789053239) targets are mounted 11:13:59 (1789053239) facet_failover done 1 501 0.00 MB/sec execute 29 sec latency 33182.826 ms 1 511 0.01 MB/sec execute 30 sec latency 33822.726 ms 1 545 0.05 MB/sec execute 31 sec latency 160.178 ms 1 616 0.11 MB/sec execute 32 sec latency 388.873 ms 1 664 0.11 MB/sec execute 33 sec latency 138.604 ms 1 697 0.11 MB/sec execute 34 sec latency 119.214 ms 1 723 0.11 MB/sec execute 35 sec latency 137.556 ms 1 759 0.11 MB/sec execute 36 sec latency 115.901 ms oleg331-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 781 0.11 MB/sec execute 37 sec latency 174.945 ms 1 804 0.11 MB/sec execute 38 sec latency 118.673 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 851 0.11 MB/sec execute 39 sec latency 138.368 ms 1 882 0.10 MB/sec execute 40 sec latency 143.701 ms 1 913 0.10 MB/sec execute 41 sec latency 130.759 ms 1 952 0.10 MB/sec execute 42 sec latency 112.148 ms 1 985 0.10 MB/sec execute 43 sec latency 95.923 ms 1 1045 0.12 MB/sec execute 44 sec latency 101.276 ms 1 1082 0.12 MB/sec execute 45 sec latency 89.996 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2072 1269232 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 1892 1269412 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 8716 3597680 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 46904 3551920 2% /mnt/lustre[OST:1] filesystem_summary: 7666232 55620 7149600 1% /mnt/lustre 1 1124 0.12 MB/sec execute 46 sec latency 180.427 ms 1 1155 0.12 MB/sec execute 47 sec latency 115.390 ms 1 1172 0.12 MB/sec execute 48 sec latency 610.924 ms 1 1175 0.11 MB/sec execute 49 sec latency 1463.344 ms 1 1200 0.11 MB/sec execute 50 sec latency 144.856 ms 1 1231 0.11 MB/sec execute 51 sec latency 131.126 ms 1 1262 0.11 MB/sec execute 52 sec latency 190.004 ms 1 1382 0.16 MB/sec execute 53 sec latency 115.685 ms 1 1418 0.16 MB/sec execute 54 sec latency 127.219 ms 1 1449 0.16 MB/sec execute 55 sec latency 107.747 ms 1 1497 0.15 MB/sec execute 56 sec latency 132.250 ms 1 1537 0.15 MB/sec execute 57 sec latency 120.573 ms test_26 fail mds2 2 times 1 1588 0.15 MB/sec execute 58 sec latency 71.368 ms 1 1613 0.15 MB/sec execute 59 sec latency 150.863 ms Failing mds2 on oleg331-server 1 1650 0.15 MB/sec execute 60 sec latency 126.757 ms Stopping /mnt/lustre-mds2 (opts:) on oleg331-server 1 1675 0.14 MB/sec execute 61 sec latency 186.662 ms 1 1691 0.14 MB/sec execute 62 sec latency 197.989 ms 1 1691 0.14 MB/sec execute 63 sec latency 1076.068 ms 1 1691 0.14 MB/sec execute 64 sec latency 2076.286 ms 11:14:35 (1789053275) shut down facet: mds2 facet_host: oleg331-server facet_failover_host: oleg331-server 1 1691 0.13 MB/sec execute 65 sec latency 3076.452 ms 1 1691 0.13 MB/sec execute 66 sec latency 4076.667 ms 1 1691 0.13 MB/sec execute 67 sec latency 5076.866 ms 1 1691 0.13 MB/sec execute 68 sec latency 6077.539 ms 1 1691 0.13 MB/sec execute 69 sec latency 7081.481 ms 1 1691 0.12 MB/sec execute 70 sec latency 8083.038 ms 1 1691 0.12 MB/sec execute 71 sec latency 9083.338 ms 1 1691 0.12 MB/sec execute 72 sec latency 10083.851 ms 1 1691 0.12 MB/sec execute 73 sec latency 11084.427 ms 1 1691 0.12 MB/sec execute 74 sec latency 12084.679 ms Failover mds2 to oleg331-server 1 1691 0.12 MB/sec execute 75 sec latency 13088.970 ms mount facets: mds2 1 1691 0.11 MB/sec execute 76 sec latency 14091.893 ms 1 1691 0.11 MB/sec execute 77 sec latency 15093.374 ms 1 1691 0.11 MB/sec execute 78 sec latency 16093.608 ms 1 1691 0.11 MB/sec execute 79 sec latency 17094.080 ms 1 1691 0.11 MB/sec execute 80 sec latency 18094.459 ms 1 1691 0.11 MB/sec execute 81 sec latency 19098.440 ms 1 1691 0.11 MB/sec execute 82 sec latency 20098.801 ms 1 1691 0.11 MB/sec execute 83 sec latency 21100.364 ms 1 1691 0.10 MB/sec execute 84 sec latency 22100.677 ms Start mds2: mount -t lustre -o localrecov /dev/mapper/mds2_flakey /mnt/lustre-mds2 1 1691 0.10 MB/sec execute 85 sec latency 23100.936 ms 1 1691 0.10 MB/sec execute 86 sec latency 24101.199 ms 1 1691 0.10 MB/sec execute 87 sec latency 25101.539 ms 1 1691 0.10 MB/sec execute 88 sec latency 26101.818 ms 1 1691 0.10 MB/sec execute 89 sec latency 27103.032 ms 1 1691 0.10 MB/sec execute 90 sec latency 28103.818 ms oleg331-server: oleg331-server.virtnet: executing set_default_debug -1 all 1 1691 0.10 MB/sec execute 91 sec latency 29104.939 ms pdsh@oleg331-client: oleg331-server: ssh exited with exit code 1 1 1691 0.09 MB/sec execute 92 sec latency 30105.635 ms Started lustre-MDT0001 1 1691 0.09 MB/sec execute 93 sec latency 31105.977 ms 11:15:04 (1789053304) targets are mounted 11:15:04 (1789053304) facet_failover done 1 1695 0.09 MB/sec execute 94 sec latency 32049.349 ms 1 1744 0.09 MB/sec execute 95 sec latency 145.285 ms 1 1793 0.09 MB/sec execute 96 sec latency 94.053 ms 1 1834 0.09 MB/sec execute 97 sec latency 149.966 ms 1 1861 0.09 MB/sec execute 98 sec latency 154.014 ms 1 1919 0.09 MB/sec execute 99 sec latency 139.043 ms oleg331-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0001-mdc-*.mds_server_uuid 1475 0 1 cleanup 100 sec 1 cleanup 101 sec mdc.lustre-MDT0001-mdc-*.mds_server_uuid in FULL state after 0 sec 1 cleanup 102 sec 1 cleanup 103 sec 0 cleanup 104 sec Operation Count AvgLat MaxLat ---------------------------------------- NTCreateX 258 320.365 33822.642 Close 223 17.610 52.409 Rename 11 120.287 197.957 Unlink 27 35.677 84.157 Qpathinfo 228 21.121 149.274 Qfileinfo 60 2.392 12.988 Qfsinfo 33 3.834 23.385 Sfileinfo 34 72.700 120.714 Find 75 16.906 78.573 WriteX 198 14.468 92.659 ReadX 297 0.239 28.528 Flush 30 65.450 112.133 Throughput 0.0905405 MB/sec 1 clients 1 procs max_latency=33822.726 ms stopping dbench on /mnt/lustre at Thu Sep 10 11:15:14 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 fnv_1a_64 /mnt/lustre2/d26.replay-dual/run_dbench UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2292 1269012 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 2104 1269200 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 4368 3602484 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 48128 3557820 2% /mnt/lustre[OST:1] filesystem_summary: 7666232 52496 7160304 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 Thu Sep 10 11:15:23 EDT 2026 waiting for dbench pid 67905 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 8 0.00 MB/sec warmup 1 sec latency 103.379 ms 1 67 1.47 MB/sec warmup 2 sec latency 94.787 ms 1 121 1.83 MB/sec warmup 3 sec latency 187.205 ms 1 155 1.63 MB/sec warmup 4 sec latency 217.765 ms 1 184 1.47 MB/sec warmup 5 sec latency 150.761 ms 1 207 1.35 MB/sec warmup 6 sec latency 431.741 ms test_26 fail mds1 3 times 1 240 1.30 MB/sec warmup 7 sec latency 137.176 ms 1 275 1.28 MB/sec warmup 8 sec latency 174.588 ms Failing mds1 on oleg331-server 1 297 1.22 MB/sec warmup 9 sec latency 259.557 ms Stopping /mnt/lustre-mds1 (opts:) on oleg331-server 1 324 1.17 MB/sec warmup 10 sec latency 171.728 ms 1 356 1.16 MB/sec warmup 11 sec latency 161.840 ms 1 356 1.06 MB/sec warmup 12 sec latency 1050.970 ms 1 356 0.98 MB/sec warmup 13 sec latency 2051.918 ms 1 356 0.91 MB/sec warmup 14 sec latency 3052.405 ms 1 356 0.85 MB/sec warmup 15 sec latency 4054.421 ms 1 356 0.80 MB/sec warmup 16 sec latency 5054.660 ms 1 356 0.75 MB/sec warmup 17 sec latency 6054.957 ms 1 356 0.71 MB/sec warmup 18 sec latency 7057.616 ms 11:15:42 (1789053342) shut down 1 356 0.67 MB/sec warmup 19 sec latency 8058.003 ms facet: mds1 facet_host: oleg331-server facet_failover_host: oleg331-server 1 356 0.00 MB/sec execute 1 sec latency 10058.408 ms 1 356 0.00 MB/sec execute 2 sec latency 11059.917 ms 1 356 0.00 MB/sec execute 3 sec latency 12060.155 ms 1 356 0.00 MB/sec execute 4 sec latency 13060.424 ms 1 356 0.00 MB/sec execute 5 sec latency 14062.787 ms 1 356 0.00 MB/sec execute 6 sec latency 15064.676 ms 1 356 0.00 MB/sec execute 7 sec latency 16065.651 ms 1 356 0.00 MB/sec execute 8 sec latency 17065.860 ms 1 356 0.00 MB/sec execute 9 sec latency 18066.385 ms Failover mds1 to oleg331-server mount facets: mds1 1 356 0.00 MB/sec execute 10 sec latency 19066.700 ms 1 356 0.00 MB/sec execute 11 sec latency 20066.896 ms 1 356 0.00 MB/sec execute 12 sec latency 21067.687 ms 1 356 0.00 MB/sec execute 13 sec latency 22068.264 ms 1 356 0.00 MB/sec execute 14 sec latency 23068.765 ms 1 356 0.00 MB/sec execute 15 sec latency 24069.183 ms 1 356 0.00 MB/sec execute 16 sec latency 25069.453 ms 1 356 0.00 MB/sec execute 17 sec latency 26069.737 ms 1 356 0.00 MB/sec execute 18 sec latency 27070.434 ms 1 356 0.00 MB/sec execute 19 sec latency 28071.793 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 356 0.00 MB/sec execute 20 sec latency 29075.422 ms 1 356 0.00 MB/sec execute 21 sec latency 30075.659 ms 1 356 0.00 MB/sec execute 22 sec latency 31076.541 ms 1 356 0.00 MB/sec execute 23 sec latency 32077.095 ms 1 356 0.00 MB/sec execute 24 sec latency 33078.149 ms 1 356 0.00 MB/sec execute 25 sec latency 34078.432 ms 1 356 0.00 MB/sec execute 26 sec latency 35078.656 ms 1 356 0.00 MB/sec execute 27 sec latency 36078.907 ms 1 356 0.00 MB/sec execute 28 sec latency 37079.166 ms 1 356 0.00 MB/sec execute 29 sec latency 38079.400 ms oleg331-server: oleg331-server.virtnet: executing set_default_debug -1 all 1 356 0.00 MB/sec execute 30 sec latency 39079.688 ms 1 356 0.00 MB/sec execute 31 sec latency 40079.931 ms pdsh@oleg331-client: oleg331-server: ssh exited with exit code 1 1 356 0.00 MB/sec execute 32 sec latency 41081.349 ms Started lustre-MDT0000 11:16:16 (1789053376) targets are mounted 11:16:16 (1789053376) facet_failover done 1 389 0.03 MB/sec execute 33 sec latency 41310.998 ms 1 429 0.07 MB/sec execute 34 sec latency 119.433 ms 1 468 0.10 MB/sec execute 35 sec latency 129.410 ms 1 506 0.13 MB/sec execute 36 sec latency 123.476 ms 1 543 0.17 MB/sec execute 37 sec latency 172.168 ms 1 616 0.22 MB/sec execute 38 sec latency 151.068 ms 1 661 0.21 MB/sec execute 39 sec latency 138.615 ms oleg331-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 695 0.21 MB/sec execute 40 sec latency 124.992 ms 1 718 0.21 MB/sec execute 41 sec latency 205.794 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 746 0.20 MB/sec execute 42 sec latency 121.034 ms 1 786 0.20 MB/sec execute 43 sec latency 110.888 ms 1 815 0.20 MB/sec execute 44 sec latency 149.942 ms 1 863 0.20 MB/sec execute 45 sec latency 150.014 ms 1 884 0.19 MB/sec execute 46 sec latency 342.443 ms 1 885 0.19 MB/sec execute 47 sec latency 1212.689 ms 1 916 0.19 MB/sec execute 48 sec latency 191.563 ms 1 949 0.18 MB/sec execute 49 sec latency 113.097 ms 1 981 0.18 MB/sec execute 50 sec latency 129.033 ms tar: Unexpected EOF in archive tar: Unexpected EOF in archive 1 1039 0.20 MB/sec execute 51 sec latency 103.007 ms 1 1100 0.20 MB/sec execute 52 sec latency 73.045 ms 1 1147 0.19 MB/sec execute 53 sec latency 82.471 ms 1 1192 0.19 MB/sec execute 54 sec latency 117.304 ms 1 1229 0.19 MB/sec execute 55 sec latency 86.025 ms 1 1269 0.18 MB/sec execute 56 sec latency 118.454 ms 1 1403 0.23 MB/sec execute 57 sec latency 77.683 ms 1 1446 0.23 MB/sec execute 58 sec latency 97.508 ms 1 1486 0.22 MB/sec execute 59 sec latency 328.197 ms 1 1524 0.22 MB/sec execute 60 sec latency 89.576 ms tar: Error is not recoverable: exiting now 1 1580 0.22 MB/sec execute 61 sec latency 97.493 ms dbench killed by signal 15 stopping dbench on /mnt/lustre at Thu Sep 10 11:16:45 EDT 2026 with return code 0 67905 pts/0 S+ 0:00 dbench -c client.txt 1 -D /mnt/lustre2/d26.replay-dual/run_dbench -t 100 killed dbench main pid 67905 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished