== replay-dual test 26: dbench and tar with mds failover ========================================================== 03:09:13 (1787123353) Starting client oleg341-client.virtnet: -o user_xattr,flock 192.168.203.141@tcp:/lustre /mnt/lustre Started clients oleg341-client.virtnet: 192.168.203.141@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 65676 Started dbench loop with 65677 striped dir -i0 -c2 -H all_char /mnt/lustre/d26.replay-dual/run_tar 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 1964 1269340 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 1756 1269548 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 1564 3584772 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 1544 3605476 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 3108 7190248 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 03:09:18 EDT 2026 waiting for dbench pid 65750 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 1 21 0.46 MB/sec warmup 1 sec latency 30.998 ms 1 74 1.57 MB/sec warmup 2 sec latency 125.369 ms 1 119 1.81 MB/sec warmup 3 sec latency 212.131 ms 1 154 1.63 MB/sec warmup 4 sec latency 164.842 ms 1 184 1.47 MB/sec warmup 5 sec latency 160.399 ms 1 204 1.32 MB/sec warmup 6 sec latency 415.419 ms 1 240 1.30 MB/sec warmup 7 sec latency 126.346 ms 1 285 1.32 MB/sec warmup 8 sec latency 108.454 ms test_26 fail mds1 1 times 1 323 1.30 MB/sec warmup 9 sec latency 123.755 ms 1 357 1.27 MB/sec warmup 10 sec latency 140.060 ms Failing mds1 on oleg341-server 1 389 1.25 MB/sec warmup 11 sec latency 143.286 ms 1 421 1.23 MB/sec warmup 12 sec latency 162.465 ms Stopping /mnt/lustre-mds1 (opts:) on oleg341-server 1 461 1.24 MB/sec warmup 13 sec latency 148.906 ms 1 501 1.24 MB/sec warmup 14 sec latency 102.959 ms 1 501 1.16 MB/sec warmup 15 sec latency 1020.335 ms 03:09:34 (1787123374) shut down facet: mds1 facet_host: oleg341-server facet_failover_host: oleg341-server 1 501 1.09 MB/sec warmup 16 sec latency 2023.103 ms 1 501 1.02 MB/sec warmup 17 sec latency 3023.395 ms 1 501 0.97 MB/sec warmup 18 sec latency 4023.591 ms 1 501 0.92 MB/sec warmup 19 sec latency 5023.812 ms 1 501 0.00 MB/sec execute 1 sec latency 7024.177 ms 1 501 0.00 MB/sec execute 2 sec latency 8024.461 ms 1 501 0.00 MB/sec execute 3 sec latency 9024.660 ms 1 501 0.00 MB/sec execute 4 sec latency 10024.870 ms 1 501 0.00 MB/sec execute 5 sec latency 11025.151 ms 1 501 0.00 MB/sec execute 6 sec latency 12025.437 ms Failover mds1 to oleg341-server mount facets: mds1 1 501 0.00 MB/sec execute 7 sec latency 13025.648 ms 1 501 0.00 MB/sec execute 8 sec latency 14025.857 ms 1 501 0.00 MB/sec execute 9 sec latency 15026.040 ms 1 501 0.00 MB/sec execute 10 sec latency 16027.903 ms 1 501 0.00 MB/sec execute 11 sec latency 17028.095 ms 1 501 0.00 MB/sec execute 12 sec latency 18028.320 ms 1 501 0.00 MB/sec execute 13 sec latency 19029.227 ms 1 501 0.00 MB/sec execute 14 sec latency 20030.454 ms 1 501 0.00 MB/sec execute 15 sec latency 21030.643 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 501 0.00 MB/sec execute 16 sec latency 22031.685 ms 1 501 0.00 MB/sec execute 17 sec latency 23032.368 ms 1 501 0.00 MB/sec execute 18 sec latency 24032.704 ms 1 501 0.00 MB/sec execute 19 sec latency 25032.842 ms 1 501 0.00 MB/sec execute 20 sec latency 26033.141 ms 1 501 0.00 MB/sec execute 21 sec latency 27033.470 ms 1 501 0.00 MB/sec execute 22 sec latency 28033.778 ms 1 501 0.00 MB/sec execute 23 sec latency 29033.976 ms 1 501 0.00 MB/sec execute 24 sec latency 30034.212 ms 1 501 0.00 MB/sec execute 25 sec latency 31036.166 ms 1 501 0.00 MB/sec execute 26 sec latency 32036.624 ms 1 501 0.00 MB/sec execute 27 sec latency 33037.020 ms oleg341-server: oleg341-server.virtnet: executing set_default_debug -1 all 1 501 0.00 MB/sec execute 28 sec latency 34037.823 ms 1 501 0.00 MB/sec execute 29 sec latency 35037.993 ms pdsh@oleg341-client: oleg341-server: ssh exited with exit code 1 1 501 0.00 MB/sec execute 30 sec latency 36038.798 ms Started lustre-MDT0000 03:10:09 (1787123409) targets are mounted 03:10:09 (1787123409) facet_failover done 1 501 0.00 MB/sec execute 31 sec latency 37039.910 ms 1 514 0.01 MB/sec execute 32 sec latency 37438.134 ms 1 552 0.05 MB/sec execute 33 sec latency 326.697 ms 1 616 0.10 MB/sec execute 34 sec latency 660.204 ms 1 671 0.11 MB/sec execute 35 sec latency 159.243 ms 1 705 0.10 MB/sec execute 36 sec latency 134.687 ms oleg341-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 740 0.10 MB/sec execute 37 sec latency 107.151 ms 1 780 0.10 MB/sec execute 38 sec latency 155.369 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 808 0.10 MB/sec execute 39 sec latency 126.127 ms 1 864 0.10 MB/sec execute 40 sec latency 110.724 ms 1 892 0.10 MB/sec execute 41 sec latency 106.633 ms 1 921 0.10 MB/sec execute 42 sec latency 97.031 ms 1 969 0.10 MB/sec execute 43 sec latency 194.435 ms 1 1018 0.11 MB/sec execute 44 sec latency 98.092 ms UUID 1K-blocks Used Available Use% Mounted on 1 1071 0.12 MB/sec execute 45 sec latency 91.440 ms lustre-MDT0000_UUID 1414116 2096 1269208 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 1896 1269408 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 45724 3559760 2% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 9804 3594548 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 55528 7154308 1% /mnt/lustre 1 1117 0.12 MB/sec execute 46 sec latency 128.596 ms 1 1147 0.12 MB/sec execute 47 sec latency 124.329 ms 1 1172 0.12 MB/sec execute 48 sec latency 591.664 ms 1 1185 0.11 MB/sec execute 49 sec latency 1147.502 ms 1 1225 0.11 MB/sec execute 50 sec latency 95.911 ms 1 1263 0.11 MB/sec execute 51 sec latency 107.168 ms 1 1399 0.16 MB/sec execute 52 sec latency 93.363 ms 1 1433 0.16 MB/sec execute 53 sec latency 114.294 ms 1 1486 0.16 MB/sec execute 54 sec latency 101.873 ms test_26 fail mds2 2 times 1 1532 0.16 MB/sec execute 55 sec latency 79.294 ms 1 1591 0.15 MB/sec execute 56 sec latency 100.587 ms Failing mds2 on oleg341-server 1 1625 0.15 MB/sec execute 57 sec latency 118.358 ms Stopping /mnt/lustre-mds2 (opts:) on oleg341-server 1 1662 0.15 MB/sec execute 58 sec latency 109.294 ms 1 1691 0.15 MB/sec execute 59 sec latency 381.611 ms 1 1691 0.15 MB/sec execute 60 sec latency 1381.793 ms 1 1691 0.14 MB/sec execute 61 sec latency 2382.059 ms 1 1691 0.14 MB/sec execute 62 sec latency 3382.480 ms 1 1691 0.14 MB/sec execute 63 sec latency 4382.676 ms 1 1691 0.14 MB/sec execute 64 sec latency 5382.836 ms 1 1691 0.13 MB/sec execute 65 sec latency 6386.873 ms 1 1691 0.13 MB/sec execute 66 sec latency 7387.044 ms 03:10:45 (1787123445) shut down facet: mds2 facet_host: oleg341-server facet_failover_host: oleg341-server 1 1691 0.13 MB/sec execute 67 sec latency 8387.560 ms 1 1691 0.13 MB/sec execute 68 sec latency 9387.828 ms 1 1691 0.13 MB/sec execute 69 sec latency 10388.031 ms 1 1691 0.12 MB/sec execute 70 sec latency 11388.384 ms 1 1691 0.12 MB/sec execute 71 sec latency 12388.867 ms 1 1691 0.12 MB/sec execute 72 sec latency 13389.355 ms 1 1691 0.12 MB/sec execute 73 sec latency 14389.639 ms 1 1691 0.12 MB/sec execute 74 sec latency 15389.799 ms 1 1691 0.12 MB/sec execute 75 sec latency 16390.814 ms 1 1691 0.12 MB/sec execute 76 sec latency 17390.994 ms Failover mds2 to oleg341-server 1 1691 0.11 MB/sec execute 77 sec latency 18391.192 ms mount facets: mds2 1 1691 0.11 MB/sec execute 78 sec latency 19391.410 ms 1 1691 0.11 MB/sec execute 79 sec latency 20391.757 ms 1 1691 0.11 MB/sec execute 80 sec latency 21392.040 ms 1 1691 0.11 MB/sec execute 81 sec latency 22394.926 ms 1 1691 0.11 MB/sec execute 82 sec latency 23395.121 ms 1 1691 0.11 MB/sec execute 83 sec latency 24398.230 ms 1 1691 0.10 MB/sec execute 84 sec latency 25398.450 ms 1 1691 0.10 MB/sec execute 85 sec latency 26400.088 ms 1 1691 0.10 MB/sec execute 86 sec latency 27400.215 ms Start mds2: mount -t lustre -o localrecov /dev/mapper/mds2_flakey /mnt/lustre-mds2 1 1691 0.10 MB/sec execute 87 sec latency 28400.352 ms 1 1691 0.10 MB/sec execute 88 sec latency 29400.557 ms 1 1691 0.10 MB/sec execute 89 sec latency 30400.768 ms 1 1691 0.10 MB/sec execute 90 sec latency 31401.751 ms 1 1691 0.10 MB/sec execute 91 sec latency 32402.169 ms 1 1691 0.10 MB/sec execute 92 sec latency 33402.467 ms 1 1691 0.09 MB/sec execute 93 sec latency 34402.656 ms oleg341-server: oleg341-server.virtnet: executing set_default_debug -1 all 1 1691 0.09 MB/sec execute 94 sec latency 35403.202 ms pdsh@oleg341-client: oleg341-server: ssh exited with exit code 1 1 1691 0.09 MB/sec execute 95 sec latency 36403.653 ms Started lustre-MDT0001 03:11:14 (1787123474) targets are mounted 03:11:14 (1787123474) facet_failover done 1 1696 0.09 MB/sec execute 96 sec latency 37205.770 ms 1 1751 0.09 MB/sec execute 97 sec latency 128.807 ms 1 1803 0.09 MB/sec execute 98 sec latency 75.669 ms 1 1836 0.09 MB/sec execute 99 sec latency 139.042 ms 1 cleanup 100 sec 1 cleanup 101 sec 1 cleanup 102 sec oleg341-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 Operation Count AvgLat MaxLat ---------------------------------------- NTCreateX 251 354.435 37438.119 Close 196 13.856 43.606 Rename 11 95.756 155.348 Unlink 24 27.194 49.738 Qpathinfo 188 18.815 124.544 Qfileinfo 56 2.181 20.143 Qfsinfo 33 3.063 17.166 Sfileinfo 34 64.297 134.672 Find 71 12.881 59.719 WriteX 190 13.938 89.244 ReadX 292 0.199 23.043 Flush 27 53.945 126.112 Throughput 0.0896553 MB/sec 1 clients 1 procs max_latency=37438.134 ms stopping dbench on /mnt/lustre at Wed Aug 19 03:11:22 EDT 2026 with return code 0 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre mdc.lustre-MDT0001-mdc-*.mds_server_uuid in FULL state after 0 sec removed 'client.txt' /mnt/lustre dbench successfully finished 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 2272 1269032 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 2152 1269152 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 28748 3561428 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 3504 3603292 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 32252 7164720 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 03:11:31 EDT 2026 waiting for dbench pid 67916 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 15 0.07 MB/sec warmup 1 sec latency 15.672 ms 1 77 1.67 MB/sec warmup 2 sec latency 102.593 ms 1 121 1.83 MB/sec warmup 3 sec latency 161.384 ms 1 155 1.63 MB/sec warmup 4 sec latency 156.805 ms 1 157 1.31 MB/sec warmup 5 sec latency 977.936 ms 1 184 1.23 MB/sec warmup 6 sec latency 1143.642 ms 1 208 1.16 MB/sec warmup 7 sec latency 421.307 ms 1 256 1.21 MB/sec warmup 8 sec latency 93.337 ms test_26 fail mds1 3 times 1 289 1.19 MB/sec warmup 9 sec latency 167.992 ms 1 320 1.16 MB/sec warmup 10 sec latency 141.721 ms Failing mds1 on oleg341-server 1 352 1.14 MB/sec warmup 11 sec latency 154.658 ms Stopping /mnt/lustre-mds1 (opts:) on oleg341-server 1 389 1.15 MB/sec warmup 12 sec latency 124.874 ms 1 396 1.08 MB/sec warmup 13 sec latency 924.371 ms 1 396 1.00 MB/sec warmup 14 sec latency 1924.570 ms 03:11:45 (1787123505) shut down facet: mds1 facet_host: oleg341-server facet_failover_host: oleg341-server 1 396 0.94 MB/sec warmup 15 sec latency 2924.822 ms 1 396 0.88 MB/sec warmup 16 sec latency 3925.029 ms 1 396 0.83 MB/sec warmup 17 sec latency 4925.757 ms 1 396 0.78 MB/sec warmup 18 sec latency 5926.328 ms 1 396 0.74 MB/sec warmup 19 sec latency 6926.516 ms 1 396 0.00 MB/sec execute 1 sec latency 8928.210 ms 1 396 0.00 MB/sec execute 2 sec latency 9928.393 ms 1 396 0.00 MB/sec execute 3 sec latency 10928.633 ms 1 396 0.00 MB/sec execute 4 sec latency 11928.866 ms Failover mds1 to oleg341-server mount facets: mds1 1 396 0.00 MB/sec execute 5 sec latency 12929.086 ms 1 396 0.00 MB/sec execute 6 sec latency 13929.262 ms 1 396 0.00 MB/sec execute 7 sec latency 14931.299 ms 1 396 0.00 MB/sec execute 8 sec latency 15931.982 ms 1 396 0.00 MB/sec execute 9 sec latency 16932.811 ms 1 396 0.00 MB/sec execute 10 sec latency 17932.997 ms 1 396 0.00 MB/sec execute 11 sec latency 18937.576 ms 1 396 0.00 MB/sec execute 12 sec latency 19937.764 ms 1 396 0.00 MB/sec execute 13 sec latency 20938.081 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 396 0.00 MB/sec execute 14 sec latency 21938.269 ms 1 396 0.00 MB/sec execute 15 sec latency 22938.503 ms 1 396 0.00 MB/sec execute 16 sec latency 23938.867 ms 1 396 0.00 MB/sec execute 17 sec latency 24939.866 ms 1 396 0.00 MB/sec execute 18 sec latency 25940.973 ms 1 396 0.00 MB/sec execute 19 sec latency 26941.183 ms 1 396 0.00 MB/sec execute 20 sec latency 27942.501 ms 1 396 0.00 MB/sec execute 21 sec latency 28942.713 ms 1 396 0.00 MB/sec execute 22 sec latency 29944.647 ms 1 396 0.00 MB/sec execute 23 sec latency 30944.823 ms 1 396 0.00 MB/sec execute 24 sec latency 31947.089 ms 1 396 0.00 MB/sec execute 25 sec latency 32947.327 ms 1 396 0.00 MB/sec execute 26 sec latency 33948.568 ms 1 396 0.00 MB/sec execute 27 sec latency 34951.304 ms 1 396 0.00 MB/sec execute 28 sec latency 35951.512 ms oleg341-server: oleg341-server.virtnet: executing set_default_debug -1 all 1 396 0.00 MB/sec execute 29 sec latency 36951.965 ms pdsh@oleg341-client: oleg341-server: ssh exited with exit code 1 1 396 0.00 MB/sec execute 30 sec latency 37952.392 ms Started lustre-MDT0000 03:12:22 (1787123542) targets are mounted 03:12:22 (1787123542) facet_failover done 1 398 0.00 MB/sec execute 31 sec latency 38731.423 ms 1 443 0.05 MB/sec execute 32 sec latency 142.403 ms 1 476 0.08 MB/sec execute 33 sec latency 154.925 ms 1 503 0.10 MB/sec execute 34 sec latency 153.462 ms 1 542 0.14 MB/sec execute 35 sec latency 175.960 ms 1 588 0.17 MB/sec execute 36 sec latency 650.432 ms 1 639 0.19 MB/sec execute 37 sec latency 157.413 ms oleg341-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 673 0.19 MB/sec execute 38 sec latency 122.301 ms 1 699 0.18 MB/sec execute 39 sec latency 154.268 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 728 0.18 MB/sec execute 40 sec latency 164.545 ms 1 761 0.18 MB/sec execute 41 sec latency 102.536 ms 1 789 0.18 MB/sec execute 42 sec latency 125.294 ms 1 824 0.17 MB/sec execute 43 sec latency 97.326 ms 1 876 0.17 MB/sec execute 44 sec latency 124.790 ms 1 905 0.17 MB/sec execute 45 sec latency 108.875 ms 1 940 0.17 MB/sec execute 46 sec latency 117.027 ms 1 981 0.17 MB/sec execute 47 sec latency 128.903 ms 1 1047 0.18 MB/sec execute 48 sec latency 102.845 ms 1 1099 0.18 MB/sec execute 49 sec latency 100.895 ms 1 1139 0.18 MB/sec execute 50 sec latency 86.889 ms tar: Unexpected EOF in archive tar: Unexpected EOF in archive 1 1172 0.17 MB/sec execute 51 sec latency 264.767 ms 1 1176 0.17 MB/sec execute 52 sec latency 1125.511 ms 1 1216 0.17 MB/sec execute 53 sec latency 99.673 ms 1 1249 0.17 MB/sec execute 54 sec latency 155.407 ms 1 1384 0.22 MB/sec execute 55 sec latency 90.451 ms 1 1410 0.21 MB/sec execute 56 sec latency 123.286 ms 1 1445 0.21 MB/sec execute 57 sec latency 154.694 ms 1 1499 0.21 MB/sec execute 58 sec latency 99.375 ms 1 1512 0.20 MB/sec execute 59 sec latency 298.700 ms 1 1543 0.20 MB/sec execute 60 sec latency 156.986 ms 1 1588 0.20 MB/sec execute 61 sec latency 104.626 ms 1 1621 0.19 MB/sec execute 62 sec latency 157.681 ms tar: Error is not recoverable: exiting now dbench killed by signal 15 stopping dbench on /mnt/lustre at Wed Aug 19 03:12:54 EDT 2026 with return code 0 1 1685 0.19 MB/sec execute 63 sec latency 96.058 ms 67916 pts/0 S+ 0:00 dbench -c client.txt 1 -D /mnt/lustre2/d26.replay-dual/run_dbench -t 100 killed dbench main pid 67916 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished