== replay-dual test 26: dbench and tar with mds failover ========================================================== 22:26:34 (1788661594) Starting client oleg452-client.virtnet: -o user_xattr,flock 192.168.204.152@tcp:/lustre /mnt/lustre Started clients oleg452-client.virtnet: 192.168.204.152@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 65678 Started dbench loop with 65679 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 1944 1269360 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 1752 1269552 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 1564 3605456 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 1544 3584820 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 3108 7190276 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 Sep 5 22:26:39 EDT 2026 waiting for dbench pid 65757 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 9 0.00 MB/sec warmup 1 sec latency 16.953 ms 1 57 1.15 MB/sec warmup 2 sec latency 167.153 ms 1 108 1.70 MB/sec warmup 3 sec latency 168.441 ms 1 135 1.49 MB/sec warmup 4 sec latency 214.570 ms 1 157 1.31 MB/sec warmup 5 sec latency 235.452 ms 1 184 1.23 MB/sec warmup 6 sec latency 192.844 ms 1 200 1.12 MB/sec warmup 7 sec latency 462.245 ms 1 231 1.11 MB/sec warmup 8 sec latency 205.546 ms 1 279 1.16 MB/sec warmup 9 sec latency 108.425 ms test_26 fail mds1 1 times 1 305 1.12 MB/sec warmup 10 sec latency 205.364 ms 1 331 1.09 MB/sec warmup 11 sec latency 208.465 ms Failing mds1 on oleg452-server 1 358 1.06 MB/sec warmup 12 sec latency 261.630 ms Stopping /mnt/lustre-mds1 (opts:) on oleg452-server 1 395 1.08 MB/sec warmup 13 sec latency 124.373 ms 1 421 1.06 MB/sec warmup 14 sec latency 141.748 ms 1 460 1.08 MB/sec warmup 15 sec latency 125.612 ms 1 493 1.07 MB/sec warmup 16 sec latency 139.207 ms 22:26:57 (1788661617) shut down 1 501 1.03 MB/sec warmup 17 sec latency 920.962 ms facet: mds1 facet_host: oleg452-server facet_failover_host: oleg452-server 1 501 0.97 MB/sec warmup 18 sec latency 1921.247 ms 1 501 0.92 MB/sec warmup 19 sec latency 2923.398 ms 1 501 0.00 MB/sec execute 1 sec latency 4926.147 ms 1 501 0.00 MB/sec execute 2 sec latency 5926.423 ms 1 501 0.00 MB/sec execute 3 sec latency 6927.572 ms 1 501 0.00 MB/sec execute 4 sec latency 7927.999 ms 1 501 0.00 MB/sec execute 5 sec latency 8928.851 ms 1 501 0.00 MB/sec execute 6 sec latency 9929.143 ms 1 501 0.00 MB/sec execute 7 sec latency 10931.197 ms Failover mds1 to oleg452-server 1 501 0.00 MB/sec execute 8 sec latency 11935.751 ms mount facets: mds1 1 501 0.00 MB/sec execute 9 sec latency 12936.423 ms 1 501 0.00 MB/sec execute 10 sec latency 13937.396 ms 1 501 0.00 MB/sec execute 11 sec latency 14937.672 ms 1 501 0.00 MB/sec execute 12 sec latency 15938.596 ms 1 501 0.00 MB/sec execute 13 sec latency 16939.266 ms 1 501 0.00 MB/sec execute 14 sec latency 17939.630 ms 1 501 0.00 MB/sec execute 15 sec latency 18939.922 ms 1 501 0.00 MB/sec execute 16 sec latency 19940.119 ms 1 501 0.00 MB/sec execute 17 sec latency 20942.086 ms 1 501 0.00 MB/sec execute 18 sec latency 21942.380 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 22942.616 ms 1 501 0.00 MB/sec execute 20 sec latency 23942.870 ms 1 501 0.00 MB/sec execute 21 sec latency 24943.516 ms 1 501 0.00 MB/sec execute 22 sec latency 25943.900 ms 1 501 0.00 MB/sec execute 23 sec latency 26944.361 ms 1 501 0.00 MB/sec execute 24 sec latency 27945.618 ms 1 501 0.00 MB/sec execute 25 sec latency 28946.121 ms 1 501 0.00 MB/sec execute 26 sec latency 29947.725 ms oleg452-server: oleg452-server.virtnet: executing set_default_debug -1 all 1 501 0.00 MB/sec execute 27 sec latency 30948.938 ms 1 501 0.00 MB/sec execute 28 sec latency 31949.526 ms pdsh@oleg452-client: oleg452-server: ssh exited with exit code 1 1 501 0.00 MB/sec execute 29 sec latency 32950.083 ms Started lustre-MDT0000 22:27:29 (1788661649) targets are mounted 22:27:29 (1788661649) facet_failover done 1 537 0.05 MB/sec execute 30 sec latency 33020.427 ms 1 591 0.09 MB/sec execute 31 sec latency 491.030 ms 1 645 0.11 MB/sec execute 32 sec latency 129.762 ms 1 683 0.11 MB/sec execute 33 sec latency 146.723 ms 1 708 0.11 MB/sec execute 34 sec latency 152.748 ms 1 731 0.11 MB/sec execute 35 sec latency 162.863 ms 1 761 0.11 MB/sec execute 36 sec latency 206.786 ms 1 779 0.11 MB/sec execute 37 sec latency 206.161 ms oleg452-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 804 0.11 MB/sec execute 38 sec latency 126.665 ms 1 850 0.11 MB/sec execute 39 sec latency 124.185 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 874 0.10 MB/sec execute 40 sec latency 140.510 ms 1 902 0.10 MB/sec execute 41 sec latency 154.537 ms 1 926 0.10 MB/sec execute 42 sec latency 117.886 ms 1 968 0.10 MB/sec execute 43 sec latency 136.132 ms 1 993 0.10 MB/sec execute 44 sec latency 136.735 ms 1 1060 0.12 MB/sec execute 45 sec latency 123.949 ms 1 1112 0.12 MB/sec execute 46 sec latency 115.353 ms 1 1136 0.12 MB/sec execute 47 sec latency 134.960 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2112 1269192 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 1900 1269404 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 11784 3591604 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 43448 3558636 2% /mnt/lustre[OST:1] filesystem_summary: 7666232 55232 7150240 1% /mnt/lustre 1 1172 0.12 MB/sec execute 48 sec latency 131.399 ms 1 1173 0.11 MB/sec execute 49 sec latency 1054.364 ms 1 1198 0.11 MB/sec execute 50 sec latency 155.152 ms 1 1230 0.11 MB/sec execute 51 sec latency 100.794 ms 1 1260 0.11 MB/sec execute 52 sec latency 157.021 ms 1 1384 0.16 MB/sec execute 53 sec latency 117.082 ms 1 1406 0.16 MB/sec execute 54 sec latency 166.543 ms 1 1433 0.16 MB/sec execute 55 sec latency 193.282 ms 1 1476 0.15 MB/sec execute 56 sec latency 133.425 ms 1 1512 0.15 MB/sec execute 57 sec latency 127.310 ms test_26 fail mds2 2 times 1 1576 0.15 MB/sec execute 58 sec latency 115.969 ms 1 1608 0.15 MB/sec execute 59 sec latency 181.466 ms 1 1643 0.15 MB/sec execute 60 sec latency 162.043 ms Failing mds2 on oleg452-server 1 1662 0.14 MB/sec execute 61 sec latency 167.605 ms Stopping /mnt/lustre-mds2 (opts:) on oleg452-server 1 1698 0.14 MB/sec execute 62 sec latency 146.511 ms 1 1735 0.14 MB/sec execute 63 sec latency 334.519 ms 1 1735 0.14 MB/sec execute 64 sec latency 1334.874 ms 1 1735 0.14 MB/sec execute 65 sec latency 2336.351 ms 22:28:05 (1788661685) shut down facet: mds2 facet_host: oleg452-server facet_failover_host: oleg452-server 1 1735 0.13 MB/sec execute 66 sec latency 3336.639 ms 1 1735 0.13 MB/sec execute 67 sec latency 4338.171 ms 1 1735 0.13 MB/sec execute 68 sec latency 5338.453 ms 1 1735 0.13 MB/sec execute 69 sec latency 6338.758 ms 1 1735 0.13 MB/sec execute 70 sec latency 7339.029 ms 1 1735 0.12 MB/sec execute 71 sec latency 8340.438 ms 1 1735 0.12 MB/sec execute 72 sec latency 9340.858 ms 1 1735 0.12 MB/sec execute 73 sec latency 10342.655 ms 1 1735 0.12 MB/sec execute 74 sec latency 11342.862 ms 1 1735 0.12 MB/sec execute 75 sec latency 12343.195 ms Failover mds2 to oleg452-server mount facets: mds2 1 1735 0.12 MB/sec execute 76 sec latency 13354.057 ms 1 1735 0.11 MB/sec execute 77 sec latency 14354.216 ms 1 1735 0.11 MB/sec execute 78 sec latency 15362.287 ms 1 1735 0.11 MB/sec execute 79 sec latency 16362.920 ms 1 1735 0.11 MB/sec execute 80 sec latency 17363.330 ms 1 1735 0.11 MB/sec execute 81 sec latency 18363.695 ms 1 1735 0.11 MB/sec execute 82 sec latency 19367.515 ms 1 1735 0.11 MB/sec execute 83 sec latency 20367.779 ms 1 1735 0.10 MB/sec execute 84 sec latency 21368.069 ms 1 1735 0.10 MB/sec execute 85 sec latency 22368.289 ms Start mds2: mount -t lustre -o localrecov /dev/mapper/mds2_flakey /mnt/lustre-mds2 1 1735 0.10 MB/sec execute 86 sec latency 23368.609 ms 1 1735 0.10 MB/sec execute 87 sec latency 24368.860 ms 1 1735 0.10 MB/sec execute 88 sec latency 25369.170 ms 1 1735 0.10 MB/sec execute 89 sec latency 26370.217 ms 1 1735 0.10 MB/sec execute 90 sec latency 27373.628 ms oleg452-server: oleg452-server.virtnet: executing set_default_debug -1 all 1 1735 0.10 MB/sec execute 91 sec latency 28373.895 ms pdsh@oleg452-client: oleg452-server: ssh exited with exit code 1 1 1735 0.10 MB/sec execute 92 sec latency 29375.371 ms 1 1735 0.09 MB/sec execute 93 sec latency 30376.707 ms Started lustre-MDT0001 22:28:33 (1788661713) targets are mounted 22:28:33 (1788661713) facet_failover done 1 1735 0.09 MB/sec execute 94 sec latency 31377.293 ms 1 1735 0.09 MB/sec execute 95 sec latency 32378.410 ms 1 1764 0.09 MB/sec execute 96 sec latency 32902.776 ms 1 1805 0.09 MB/sec execute 97 sec latency 94.738 ms 1 1841 0.09 MB/sec execute 98 sec latency 134.435 ms 1 1886 0.09 MB/sec execute 99 sec latency 115.342 ms 1 cleanup 100 sec oleg452-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0001-mdc-*.mds_server_uuid 1475 0 1 cleanup 101 sec 1 cleanup 102 sec mdc.lustre-MDT0001-mdc-*.mds_server_uuid in FULL state after 0 sec 1 cleanup 103 sec 1 cleanup 104 sec 0 cleanup 104 sec Operation Count AvgLat MaxLat ---------------------------------------- NTCreateX 256 198.119 33018.749 Close 221 164.743 32902.748 Rename 11 119.292 162.839 Unlink 26 32.125 80.762 Qpathinfo 221 18.698 136.109 Qfileinfo 59 1.923 18.636 Qfsinfo 33 3.423 18.058 Sfileinfo 34 84.551 155.129 Find 75 14.546 65.308 WriteX 198 14.711 115.466 ReadX 297 0.261 24.445 Flush 30 66.388 140.493 Throughput 0.0898172 MB/sec 1 clients 1 procs max_latency=33020.427 ms stopping dbench on /mnt/lustre at Sat Sep 5 22:28:44 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 crush /mnt/lustre2/d26.replay-dual/run_dbench UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2300 1269004 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 2092 1269212 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 2448 3604432 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 20932 3585308 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 23380 7189740 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 Sat Sep 5 22:28:54 EDT 2026 waiting for dbench pid 67937 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 45.198 ms 1 31 0.52 MB/sec warmup 2 sec latency 487.781 ms 1 31 0.35 MB/sec warmup 3 sec latency 1488.722 ms 1 37 0.31 MB/sec warmup 4 sec latency 2287.097 ms 1 65 0.56 MB/sec warmup 5 sec latency 176.657 ms 1 98 0.74 MB/sec warmup 6 sec latency 176.601 ms 1 137 0.86 MB/sec warmup 7 sec latency 126.984 ms test_26 fail mds1 3 times 1 165 0.85 MB/sec warmup 8 sec latency 174.518 ms 1 184 0.82 MB/sec warmup 9 sec latency 309.702 ms 1 205 0.81 MB/sec warmup 10 sec latency 611.390 ms Failing mds1 on oleg452-server 1 231 0.81 MB/sec warmup 11 sec latency 209.134 ms Stopping /mnt/lustre-mds1 (opts:) on oleg452-server 1 271 0.85 MB/sec warmup 12 sec latency 153.611 ms 1 295 0.84 MB/sec warmup 13 sec latency 173.276 ms 1 323 0.84 MB/sec warmup 14 sec latency 233.437 ms 1 339 0.82 MB/sec warmup 15 sec latency 676.074 ms 22:29:09 (1788661749) shut down facet: mds1 facet_host: oleg452-server facet_failover_host: oleg452-server 1 339 0.77 MB/sec warmup 16 sec latency 1676.288 ms 1 339 0.72 MB/sec warmup 17 sec latency 2677.108 ms 1 339 0.68 MB/sec warmup 18 sec latency 3677.308 ms 1 339 0.64 MB/sec warmup 19 sec latency 4679.163 ms 1 339 0.00 MB/sec execute 1 sec latency 6684.347 ms 1 339 0.00 MB/sec execute 2 sec latency 7684.741 ms 1 339 0.00 MB/sec execute 3 sec latency 8684.904 ms 1 339 0.00 MB/sec execute 4 sec latency 9685.244 ms 1 339 0.00 MB/sec execute 5 sec latency 10685.834 ms Failover mds1 to oleg452-server 1 339 0.00 MB/sec execute 6 sec latency 11692.866 ms mount facets: mds1 1 339 0.00 MB/sec execute 7 sec latency 12695.979 ms 1 339 0.00 MB/sec execute 8 sec latency 13696.417 ms 1 339 0.00 MB/sec execute 9 sec latency 14699.388 ms 1 339 0.00 MB/sec execute 10 sec latency 15706.086 ms 1 339 0.00 MB/sec execute 11 sec latency 16708.253 ms 1 339 0.00 MB/sec execute 12 sec latency 17708.532 ms 1 339 0.00 MB/sec execute 13 sec latency 18712.608 ms 1 339 0.00 MB/sec execute 14 sec latency 19712.998 ms 1 339 0.00 MB/sec execute 15 sec latency 20713.543 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 339 0.00 MB/sec execute 16 sec latency 21715.842 ms 1 339 0.00 MB/sec execute 17 sec latency 22718.800 ms 1 339 0.00 MB/sec execute 18 sec latency 23719.012 ms 1 339 0.00 MB/sec execute 19 sec latency 24721.788 ms 1 339 0.00 MB/sec execute 20 sec latency 25722.024 ms 1 339 0.00 MB/sec execute 21 sec latency 26722.245 ms 1 339 0.00 MB/sec execute 22 sec latency 27722.406 ms 1 339 0.00 MB/sec execute 23 sec latency 28726.121 ms 1 339 0.00 MB/sec execute 24 sec latency 29728.149 ms 1 339 0.00 MB/sec execute 25 sec latency 30728.417 ms oleg452-server: oleg452-server.virtnet: executing set_default_debug -1 all 1 339 0.00 MB/sec execute 26 sec latency 31728.631 ms pdsh@oleg452-client: oleg452-server: ssh exited with exit code 1 1 339 0.00 MB/sec execute 27 sec latency 32728.804 ms 1 357 0.02 MB/sec execute 28 sec latency 33098.159 ms Started lustre-MDT0000 22:29:42 (1788661782) targets are mounted 22:29:42 (1788661782) facet_failover done 1 389 0.05 MB/sec execute 29 sec latency 321.227 ms 1 429 0.10 MB/sec execute 30 sec latency 128.134 ms 1 464 0.13 MB/sec execute 31 sec latency 135.946 ms 1 501 0.16 MB/sec execute 32 sec latency 134.297 ms 1 538 0.20 MB/sec execute 33 sec latency 166.720 ms 1 611 0.26 MB/sec execute 34 sec latency 112.833 ms 1 654 0.25 MB/sec execute 35 sec latency 142.911 ms oleg452-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 692 0.25 MB/sec execute 36 sec latency 141.283 ms 1 721 0.24 MB/sec execute 37 sec latency 121.269 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 740 0.24 MB/sec execute 38 sec latency 153.222 ms 1 778 0.23 MB/sec execute 39 sec latency 121.657 ms 1 804 0.23 MB/sec execute 40 sec latency 153.529 ms 1 848 0.23 MB/sec execute 41 sec latency 128.912 ms 1 874 0.22 MB/sec execute 42 sec latency 137.682 ms 1 910 0.22 MB/sec execute 43 sec latency 87.019 ms 1 951 0.22 MB/sec execute 44 sec latency 101.649 ms 1 985 0.21 MB/sec execute 45 sec latency 122.136 ms 1 1035 0.23 MB/sec execute 46 sec latency 214.650 ms 1 1035 0.23 MB/sec execute 47 sec latency 1216.193 ms 1 1060 0.22 MB/sec execute 48 sec latency 1439.519 ms 1 1102 0.22 MB/sec execute 49 sec latency 127.163 ms tar: Unexpected EOF in archive tar: Unexpected EOF in archive 1 1147 0.21 MB/sec execute 50 sec latency 103.052 ms 1 1180 0.21 MB/sec execute 51 sec latency 152.015 ms 1 1221 0.21 MB/sec execute 52 sec latency 93.341 ms 1 1245 0.20 MB/sec execute 53 sec latency 130.269 ms 1 1278 0.20 MB/sec execute 54 sec latency 116.288 ms 1 1403 0.25 MB/sec execute 55 sec latency 175.234 ms 1 1446 0.25 MB/sec execute 56 sec latency 113.266 ms 1 1486 0.24 MB/sec execute 57 sec latency 85.866 ms 1 1514 0.24 MB/sec execute 58 sec latency 156.127 ms 1 1552 0.23 MB/sec execute 59 sec latency 97.008 ms 1 1597 0.23 MB/sec execute 60 sec latency 143.832 ms 1 1643 0.23 MB/sec execute 61 sec latency 125.926 ms 1 1679 0.22 MB/sec execute 62 sec latency 117.601 ms tar: Error is not recoverable: exiting now dbench killed by signal 15 stopping dbench on /mnt/lustre at Sat Sep 5 22:30:16 EDT 2026 with return code 0 67937 pts/0 S+ 0:00 dbench -c client.txt 1 -D /mnt/lustre2/d26.replay-dual/run_dbench -t 100 killed dbench main pid 67937 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished