== replay-dual test 26: dbench and tar with mds failover ========================================================== 05:34:21 (1787391261) Starting client oleg627-client.virtnet: -o user_xattr,flock 192.168.206.127@tcp:/lustre /mnt/lustre Started clients oleg627-client.virtnet: 192.168.206.127@tcp:/lustre on /mnt/lustre type lustre (rw,flock,checksum,encrypt,lazystatfs,lruresize,nolock,statfs_project,nouser_fid2path,user_xattr,verbose) Started tar loop with pid 65644 Started dbench loop with 65645 striped dir -i0 -c2 -H all_char /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 3605456 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 1544 3584792 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 Sat Aug 22 05:34:27 EDT 2026 waiting for dbench pid 65726 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 69.641 ms 1 56 1.11 MB/sec warmup 2 sec latency 146.733 ms 1 107 1.68 MB/sec warmup 3 sec latency 157.460 ms 1 137 1.50 MB/sec warmup 4 sec latency 233.378 ms 1 170 1.38 MB/sec warmup 5 sec latency 157.413 ms 1 187 1.25 MB/sec warmup 6 sec latency 570.044 ms 1 211 1.16 MB/sec warmup 7 sec latency 276.930 ms 1 247 1.17 MB/sec warmup 8 sec latency 130.477 ms 1 288 1.19 MB/sec warmup 9 sec latency 114.526 ms test_26 fail mds1 1 times 1 315 1.15 MB/sec warmup 10 sec latency 188.790 ms 1 346 1.12 MB/sec warmup 11 sec latency 135.555 ms 1 381 1.13 MB/sec warmup 12 sec latency 160.533 ms Failing mds1 on oleg627-server 1 420 1.14 MB/sec warmup 13 sec latency 143.393 ms Stopping /mnt/lustre-mds1 (opts:) on oleg627-server 1 461 1.15 MB/sec warmup 14 sec latency 111.167 ms 1 494 1.14 MB/sec warmup 15 sec latency 157.670 ms 1 501 1.09 MB/sec warmup 16 sec latency 908.756 ms 05:34:44 (1787391284) shut down facet: mds1 facet_host: oleg627-server facet_failover_host: oleg627-server 1 501 1.02 MB/sec warmup 17 sec latency 1917.614 ms 1 501 0.97 MB/sec warmup 18 sec latency 2919.111 ms 1 501 0.92 MB/sec warmup 19 sec latency 3919.899 ms 1 501 0.00 MB/sec execute 1 sec latency 5920.526 ms 1 501 0.00 MB/sec execute 2 sec latency 6922.151 ms 1 501 0.00 MB/sec execute 3 sec latency 7922.496 ms 1 501 0.00 MB/sec execute 4 sec latency 8923.604 ms 1 501 0.00 MB/sec execute 5 sec latency 9923.927 ms 1 501 0.00 MB/sec execute 6 sec latency 10924.157 ms 1 501 0.00 MB/sec execute 7 sec latency 11924.619 ms Failover mds1 to oleg627-server mount facets: mds1 1 501 0.00 MB/sec execute 8 sec latency 12924.818 ms 1 501 0.00 MB/sec execute 9 sec latency 13925.978 ms 1 501 0.00 MB/sec execute 10 sec latency 14926.169 ms 1 501 0.00 MB/sec execute 11 sec latency 15926.330 ms 1 501 0.00 MB/sec execute 12 sec latency 16926.726 ms 1 501 0.00 MB/sec execute 13 sec latency 17927.101 ms 1 501 0.00 MB/sec execute 14 sec latency 18928.028 ms 1 501 0.00 MB/sec execute 15 sec latency 19929.676 ms 1 501 0.00 MB/sec execute 16 sec latency 20930.765 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 501 0.00 MB/sec execute 17 sec latency 21934.889 ms 1 501 0.00 MB/sec execute 18 sec latency 22935.199 ms 1 501 0.00 MB/sec execute 19 sec latency 23936.216 ms 1 501 0.00 MB/sec execute 20 sec latency 24936.510 ms 1 501 0.00 MB/sec execute 21 sec latency 25936.812 ms 1 501 0.00 MB/sec execute 22 sec latency 26937.190 ms 1 501 0.00 MB/sec execute 23 sec latency 27937.378 ms 1 501 0.00 MB/sec execute 24 sec latency 28938.424 ms 1 501 0.00 MB/sec execute 25 sec latency 29943.078 ms 1 501 0.00 MB/sec execute 26 sec latency 30943.259 ms 1 501 0.00 MB/sec execute 27 sec latency 31943.479 ms 1 501 0.00 MB/sec execute 28 sec latency 32944.115 ms 1 501 0.00 MB/sec execute 29 sec latency 33945.114 ms oleg627-server: oleg627-server.virtnet: executing set_default_debug -1 all 1 501 0.00 MB/sec execute 30 sec latency 34945.422 ms 1 501 0.00 MB/sec execute 31 sec latency 35951.704 ms pdsh@oleg627-client: oleg627-server: ssh exited with exit code 1 1 501 0.00 MB/sec execute 32 sec latency 36953.838 ms Started lustre-MDT0000 05:35:20 (1787391320) targets are mounted 05:35:20 (1787391320) facet_failover done 1 522 0.02 MB/sec execute 33 sec latency 37448.102 ms 1 552 0.05 MB/sec execute 34 sec latency 550.704 ms 1 616 0.10 MB/sec execute 35 sec latency 737.903 ms 1 666 0.10 MB/sec execute 36 sec latency 107.199 ms 1 699 0.10 MB/sec execute 37 sec latency 135.887 ms 1 726 0.10 MB/sec execute 38 sec latency 219.090 ms 1 762 0.10 MB/sec execute 39 sec latency 133.808 ms oleg627-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1 788 0.10 MB/sec execute 40 sec latency 128.619 ms 1 811 0.10 MB/sec execute 41 sec latency 117.779 ms 1 858 0.10 MB/sec execute 42 sec latency 117.506 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 882 0.10 MB/sec execute 43 sec latency 136.539 ms 1 910 0.10 MB/sec execute 44 sec latency 186.511 ms 1 939 0.10 MB/sec execute 45 sec latency 139.440 ms 1 970 0.09 MB/sec execute 46 sec latency 156.324 ms 1 988 0.09 MB/sec execute 47 sec latency 158.333 ms 1 1059 0.11 MB/sec execute 48 sec latency 98.261 ms 1 1119 0.11 MB/sec execute 49 sec latency 75.714 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2148 1269156 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 1940 1269364 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 10132 3595428 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 45148 3560012 2% /mnt/lustre[OST:1] filesystem_summary: 7666232 55280 7155440 1% /mnt/lustre 1 1147 0.11 MB/sec execute 50 sec latency 97.776 ms 1 1172 0.11 MB/sec execute 51 sec latency 481.630 ms 1 1176 0.11 MB/sec execute 52 sec latency 1195.410 ms 1 1215 0.11 MB/sec execute 53 sec latency 86.258 ms 1 1242 0.10 MB/sec execute 54 sec latency 115.082 ms 1 1278 0.10 MB/sec execute 55 sec latency 152.338 ms 1 1410 0.15 MB/sec execute 56 sec latency 96.862 ms 1 1470 0.15 MB/sec execute 57 sec latency 60.030 ms 1 1505 0.15 MB/sec execute 58 sec latency 147.459 ms 1 1574 0.15 MB/sec execute 59 sec latency 70.271 ms test_26 fail mds2 2 times 1 1624 0.14 MB/sec execute 60 sec latency 108.227 ms 1 1660 0.14 MB/sec execute 61 sec latency 139.556 ms Failing mds2 on oleg627-server 1 1691 0.14 MB/sec execute 62 sec latency 133.534 ms Stopping /mnt/lustre-mds2 (opts:) on oleg627-server 1 1737 0.14 MB/sec execute 63 sec latency 127.511 ms 1 1783 0.14 MB/sec execute 64 sec latency 147.690 ms 1 1783 0.14 MB/sec execute 65 sec latency 1085.910 ms 1 1783 0.13 MB/sec execute 66 sec latency 2086.219 ms 05:35:54 (1787391354) shut down facet: mds2 facet_host: oleg627-server facet_failover_host: oleg627-server 1 1783 0.13 MB/sec execute 67 sec latency 3086.817 ms 1 1783 0.13 MB/sec execute 68 sec latency 4087.269 ms 1 1783 0.13 MB/sec execute 69 sec latency 5087.590 ms 1 1783 0.13 MB/sec execute 70 sec latency 6089.314 ms 1 1783 0.12 MB/sec execute 71 sec latency 7089.685 ms 1 1783 0.12 MB/sec execute 72 sec latency 8091.116 ms 1 1783 0.12 MB/sec execute 73 sec latency 9091.375 ms 1 1783 0.12 MB/sec execute 74 sec latency 10091.646 ms 1 1783 0.12 MB/sec execute 75 sec latency 11097.186 ms 1 1783 0.12 MB/sec execute 76 sec latency 12097.426 ms Failover mds2 to oleg627-server mount facets: mds2 1 1783 0.11 MB/sec execute 77 sec latency 13097.587 ms 1 1783 0.11 MB/sec execute 78 sec latency 14099.790 ms 1 1783 0.11 MB/sec execute 79 sec latency 15100.016 ms 1 1783 0.11 MB/sec execute 80 sec latency 16100.251 ms 1 1783 0.11 MB/sec execute 81 sec latency 17101.445 ms 1 1783 0.11 MB/sec execute 82 sec latency 18108.197 ms 1 1783 0.11 MB/sec execute 83 sec latency 19108.438 ms 1 1783 0.10 MB/sec execute 84 sec latency 20108.700 ms 1 1783 0.10 MB/sec execute 85 sec latency 21108.931 ms 1 1783 0.10 MB/sec execute 86 sec latency 22125.867 ms Start mds2: mount -t lustre -o localrecov /dev/mapper/mds2_flakey /mnt/lustre-mds2 1 1783 0.10 MB/sec execute 87 sec latency 23128.020 ms 1 1783 0.10 MB/sec execute 88 sec latency 24129.229 ms 1 1783 0.10 MB/sec execute 89 sec latency 25129.471 ms 1 1783 0.10 MB/sec execute 90 sec latency 26131.022 ms 1 1783 0.10 MB/sec execute 91 sec latency 27131.266 ms oleg627-server: oleg627-server.virtnet: executing set_default_debug -1 all 1 1783 0.10 MB/sec execute 92 sec latency 28131.972 ms 1 1783 0.09 MB/sec execute 93 sec latency 29134.214 ms pdsh@oleg627-client: oleg627-server: ssh exited with exit code 1 1 1783 0.09 MB/sec execute 94 sec latency 30135.862 ms Started lustre-MDT0001 05:36:22 (1787391382) targets are mounted 05:36:22 (1787391382) facet_failover done 1 1783 0.09 MB/sec execute 95 sec latency 31136.535 ms 1 1793 0.09 MB/sec execute 96 sec latency 31925.466 ms 1 1832 0.09 MB/sec execute 97 sec latency 94.162 ms 1 1868 0.09 MB/sec execute 98 sec latency 97.793 ms 1 1924 0.09 MB/sec execute 99 sec latency 96.515 ms 1 cleanup 100 sec 1 cleanup 101 sec 1 cleanup 102 sec oleg627-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0001-mdc-*.mds_server_uuid 1 cleanup 103 sec 1 cleanup 104 sec 0 cleanup 105 sec Operation Count AvgLat MaxLat ---------------------------------------- NTCreateX 259 327.847 37448.079 Close 224 14.152 69.000 Rename 11 127.831 219.060 Unlink 27 26.921 43.056 Qpathinfo 229 17.342 87.714 Qfileinfo 60 2.819 21.610 Qfsinfo 33 4.543 26.074 Sfileinfo 34 75.107 143.328 Find 76 16.494 66.160 WriteX 198 14.676 71.032 ReadX 297 0.340 23.443 Flush 30 60.714 96.919 Throughput 0.090575 MB/sec 1 clients 1 procs max_latency=37448.102 ms stopping dbench on /mnt/lustre at Sat Aug 22 05:36:33 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 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 2300 1269004 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 2108 1269196 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 1944 3595828 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 20724 3585884 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 22668 7181712 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 Aug 22 05:36:44 EDT 2026 waiting for dbench pid 67892 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 10 0.00 MB/sec warmup 1 sec latency 3.581 ms 1 71 1.57 MB/sec warmup 2 sec latency 144.035 ms 1 121 1.83 MB/sec warmup 3 sec latency 160.757 ms 1 147 1.57 MB/sec warmup 4 sec latency 242.824 ms 1 155 1.31 MB/sec warmup 5 sec latency 841.938 ms 1 165 1.13 MB/sec warmup 6 sec latency 1370.549 ms 1 194 1.10 MB/sec warmup 7 sec latency 279.451 ms 1 231 1.11 MB/sec warmup 8 sec latency 130.314 ms test_26 fail mds1 3 times 1 279 1.16 MB/sec warmup 9 sec latency 116.349 ms 1 306 1.12 MB/sec warmup 10 sec latency 144.330 ms 1 335 1.10 MB/sec warmup 11 sec latency 192.806 ms Failing mds1 on oleg627-server 1 365 1.09 MB/sec warmup 12 sec latency 186.363 ms Stopping /mnt/lustre-mds1 (opts:) on oleg627-server 1 398 1.08 MB/sec warmup 13 sec latency 177.805 ms 1 412 1.04 MB/sec warmup 14 sec latency 738.948 ms 1 412 0.97 MB/sec warmup 15 sec latency 1741.139 ms 05:37:00 (1787391420) shut down facet: mds1 facet_host: oleg627-server facet_failover_host: oleg627-server 1 412 0.91 MB/sec warmup 16 sec latency 2741.410 ms 1 412 0.86 MB/sec warmup 17 sec latency 3741.664 ms 1 412 0.81 MB/sec warmup 18 sec latency 4741.854 ms 1 412 0.77 MB/sec warmup 19 sec latency 5743.488 ms 1 412 0.00 MB/sec execute 1 sec latency 7745.791 ms 1 412 0.00 MB/sec execute 2 sec latency 8747.745 ms 1 412 0.00 MB/sec execute 3 sec latency 9748.293 ms 1 412 0.00 MB/sec execute 4 sec latency 10748.853 ms 1 412 0.00 MB/sec execute 5 sec latency 11749.777 ms 1 412 0.00 MB/sec execute 6 sec latency 12753.331 ms Failover mds1 to oleg627-server mount facets: mds1 1 412 0.00 MB/sec execute 7 sec latency 13754.883 ms 1 412 0.00 MB/sec execute 8 sec latency 14755.335 ms 1 412 0.00 MB/sec execute 9 sec latency 15755.626 ms 1 412 0.00 MB/sec execute 10 sec latency 16755.839 ms 1 412 0.00 MB/sec execute 11 sec latency 17756.101 ms 1 412 0.00 MB/sec execute 12 sec latency 18756.360 ms 1 412 0.00 MB/sec execute 13 sec latency 19756.599 ms 1 412 0.00 MB/sec execute 14 sec latency 20757.384 ms 1 412 0.00 MB/sec execute 15 sec latency 21758.117 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 412 0.00 MB/sec execute 16 sec latency 22763.600 ms 1 412 0.00 MB/sec execute 17 sec latency 23763.861 ms 1 412 0.00 MB/sec execute 18 sec latency 24764.120 ms 1 412 0.00 MB/sec execute 19 sec latency 25764.425 ms 1 412 0.00 MB/sec execute 20 sec latency 26764.617 ms 1 412 0.00 MB/sec execute 21 sec latency 27764.983 ms 1 412 0.00 MB/sec execute 22 sec latency 28765.178 ms 1 412 0.00 MB/sec execute 23 sec latency 29765.383 ms 1 412 0.00 MB/sec execute 24 sec latency 30765.711 ms 1 412 0.00 MB/sec execute 25 sec latency 31765.920 ms 1 412 0.00 MB/sec execute 26 sec latency 32767.027 ms 1 412 0.00 MB/sec execute 27 sec latency 33767.298 ms 1 412 0.00 MB/sec execute 28 sec latency 34768.660 ms 1 412 0.00 MB/sec execute 29 sec latency 35769.007 ms 1 412 0.00 MB/sec execute 30 sec latency 36769.436 ms oleg627-server: oleg627-server.virtnet: executing set_default_debug -1 all 1 412 0.00 MB/sec execute 31 sec latency 37770.271 ms pdsh@oleg627-client: oleg627-server: ssh exited with exit code 1 1 412 0.00 MB/sec execute 32 sec latency 38770.976 ms Started lustre-MDT0000 05:37:37 (1787391457) targets are mounted 05:37:37 (1787391457) facet_failover done 1 434 0.02 MB/sec execute 33 sec latency 39181.167 ms 1 470 0.05 MB/sec execute 34 sec latency 118.364 ms 1 511 0.09 MB/sec execute 35 sec latency 118.623 ms 1 571 0.12 MB/sec execute 36 sec latency 162.279 ms 1 636 0.17 MB/sec execute 37 sec latency 130.113 ms 1 674 0.17 MB/sec execute 38 sec latency 101.914 ms 1 710 0.17 MB/sec execute 39 sec latency 126.059 ms oleg627-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1 735 0.17 MB/sec execute 40 sec latency 129.878 ms 1 769 0.16 MB/sec execute 41 sec latency 122.043 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 801 0.16 MB/sec execute 42 sec latency 118.506 ms 1 845 0.16 MB/sec execute 43 sec latency 119.819 ms 1 876 0.16 MB/sec execute 44 sec latency 110.706 ms 1 884 0.16 MB/sec execute 45 sec latency 737.606 ms 1 893 0.15 MB/sec execute 46 sec latency 1212.408 ms 1 923 0.15 MB/sec execute 47 sec latency 145.167 ms 1 972 0.15 MB/sec execute 48 sec latency 110.296 ms tar: Unexpected EOF in archive tar: Unexpected EOF in archive 1 1028 0.17 MB/sec execute 49 sec latency 106.212 ms 1 1080 0.17 MB/sec execute 50 sec latency 82.299 ms 1 1136 0.16 MB/sec execute 51 sec latency 91.573 ms 1 1180 0.16 MB/sec execute 52 sec latency 110.947 ms 1 1223 0.16 MB/sec execute 53 sec latency 92.670 ms 1 1262 0.16 MB/sec execute 54 sec latency 98.474 ms 1 1387 0.21 MB/sec execute 55 sec latency 137.966 ms 1 1418 0.20 MB/sec execute 56 sec latency 140.652 ms 1 1467 0.20 MB/sec execute 57 sec latency 84.577 ms 1 1494 0.20 MB/sec execute 58 sec latency 365.615 ms tar: Error is not recoverable: exiting now dbench killed by signal 15 stopping dbench on /mnt/lustre at Sat Aug 22 05:38:03 EDT 2026 with return code 0 1 1538 0.19 MB/sec execute 59 sec latency 91.202 ms 67892 pts/0 S+ 0:00 dbench -c client.txt 1 -D /mnt/lustre2/d26.replay-dual/run_dbench -t 100 killed dbench main pid 67892 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished