== replay-dual test 26: dbench and tar with mds failover ========================================================== 09:04:43 (1787576683) Starting client oleg153-client.virtnet: -o user_xattr,flock 192.168.201.153@tcp:/lustre /mnt/lustre Started clients oleg153-client.virtnet: 192.168.201.153@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 65640 Started dbench loop with 65641 striped dir -i0 -c2 -H crush2 /mnt/lustre/d26.replay-dual/run_tar striped dir -i0 -c2 -H crush2 /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 1944 1269360 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 1756 1269548 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 5660 3580656 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 1544 3605476 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 7204 7186132 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 Mon Aug 24 09:04:49 EDT 2026 waiting for dbench pid 65704 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 34.606 ms 1 69 1.54 MB/sec warmup 2 sec latency 124.054 ms 1 113 1.75 MB/sec warmup 3 sec latency 184.600 ms 1 140 1.50 MB/sec warmup 4 sec latency 193.831 ms 1 173 1.41 MB/sec warmup 5 sec latency 147.152 ms 1 184 1.23 MB/sec warmup 6 sec latency 589.427 ms 1 199 1.12 MB/sec warmup 7 sec latency 700.287 ms 1 239 1.14 MB/sec warmup 8 sec latency 121.732 ms 1 284 1.17 MB/sec warmup 9 sec latency 116.059 ms test_26 fail mds1 1 times 1 316 1.15 MB/sec warmup 10 sec latency 141.221 ms 1 347 1.13 MB/sec warmup 11 sec latency 198.632 ms Failing mds1 on oleg153-server 1 378 1.12 MB/sec warmup 12 sec latency 290.845 ms Stopping /mnt/lustre-mds1 (opts:) on oleg153-server 1 414 1.12 MB/sec warmup 13 sec latency 168.827 ms 1 452 1.13 MB/sec warmup 14 sec latency 149.180 ms 1 452 1.06 MB/sec warmup 15 sec latency 1005.945 ms 1 452 0.99 MB/sec warmup 16 sec latency 2006.151 ms 09:05:06 (1787576706) shut down 1 452 0.93 MB/sec warmup 17 sec latency 3018.450 ms facet: mds1 facet_host: oleg153-server facet_failover_host: oleg153-server 1 452 0.88 MB/sec warmup 18 sec latency 4018.742 ms 1 452 0.84 MB/sec warmup 19 sec latency 5019.330 ms 1 452 0.00 MB/sec execute 1 sec latency 7019.734 ms 1 452 0.00 MB/sec execute 2 sec latency 8021.050 ms 1 452 0.00 MB/sec execute 3 sec latency 9021.285 ms 1 452 0.00 MB/sec execute 4 sec latency 10021.667 ms 1 452 0.00 MB/sec execute 5 sec latency 11025.269 ms 1 452 0.00 MB/sec execute 6 sec latency 12026.127 ms 1 452 0.00 MB/sec execute 7 sec latency 13026.353 ms Failover mds1 to oleg153-server mount facets: mds1 1 452 0.00 MB/sec execute 8 sec latency 14026.812 ms 1 452 0.00 MB/sec execute 9 sec latency 15027.028 ms 1 452 0.00 MB/sec execute 10 sec latency 16027.290 ms 1 452 0.00 MB/sec execute 11 sec latency 17027.596 ms 1 452 0.00 MB/sec execute 12 sec latency 18028.408 ms 1 452 0.00 MB/sec execute 13 sec latency 19028.639 ms 1 452 0.00 MB/sec execute 14 sec latency 20028.994 ms 1 452 0.00 MB/sec execute 15 sec latency 21029.329 ms 1 452 0.00 MB/sec execute 16 sec latency 22030.838 ms 1 452 0.00 MB/sec execute 17 sec latency 23032.647 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 452 0.00 MB/sec execute 18 sec latency 24032.844 ms 1 452 0.00 MB/sec execute 19 sec latency 25033.013 ms 1 452 0.00 MB/sec execute 20 sec latency 26033.237 ms 1 452 0.00 MB/sec execute 21 sec latency 27033.530 ms 1 452 0.00 MB/sec execute 22 sec latency 28033.895 ms 1 452 0.00 MB/sec execute 23 sec latency 29038.858 ms 1 452 0.00 MB/sec execute 24 sec latency 30039.292 ms 1 452 0.00 MB/sec execute 25 sec latency 31039.530 ms 1 452 0.00 MB/sec execute 26 sec latency 32039.948 ms oleg153-server: oleg153-server.virtnet: executing set_default_debug -1 all 1 452 0.00 MB/sec execute 27 sec latency 33040.238 ms pdsh@oleg153-client: oleg153-server: ssh exited with exit code 1 1 452 0.00 MB/sec execute 28 sec latency 34041.428 ms 1 452 0.00 MB/sec execute 29 sec latency 35042.492 ms Started lustre-MDT0000 09:05:38 (1787576738) targets are mounted 09:05:38 (1787576738) facet_failover done 1 469 0.02 MB/sec execute 30 sec latency 35603.826 ms 1 503 0.05 MB/sec execute 31 sec latency 170.625 ms 1 527 0.07 MB/sec execute 32 sec latency 226.635 ms 1 574 0.10 MB/sec execute 33 sec latency 454.211 ms 1 616 0.15 MB/sec execute 34 sec latency 113.825 ms 1 663 0.15 MB/sec execute 35 sec latency 140.371 ms 1 692 0.15 MB/sec execute 36 sec latency 129.265 ms oleg153-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 728 0.15 MB/sec execute 37 sec latency 108.427 ms 1 762 0.14 MB/sec execute 38 sec latency 98.083 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 786 0.14 MB/sec execute 39 sec latency 152.137 ms 1 806 0.14 MB/sec execute 40 sec latency 148.744 ms 1 848 0.14 MB/sec execute 41 sec latency 186.887 ms 1 878 0.14 MB/sec execute 42 sec latency 109.667 ms 1 907 0.13 MB/sec execute 43 sec latency 129.233 ms 1 934 0.13 MB/sec execute 44 sec latency 143.814 ms 1 980 0.13 MB/sec execute 45 sec latency 138.149 ms 1 1028 0.15 MB/sec execute 46 sec latency 132.979 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2144 1269160 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 1948 1269356 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 37884 3567764 2% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 16212 3586532 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 54096 7154296 1% /mnt/lustre 1 1061 0.15 MB/sec execute 47 sec latency 111.843 ms 1 1103 0.15 MB/sec execute 48 sec latency 78.468 ms 1 1139 0.14 MB/sec execute 49 sec latency 118.585 ms 1 1172 0.14 MB/sec execute 50 sec latency 208.288 ms 1 1173 0.14 MB/sec execute 51 sec latency 1050.573 ms 1 1198 0.14 MB/sec execute 52 sec latency 198.063 ms 1 1228 0.14 MB/sec execute 53 sec latency 101.801 ms 1 1259 0.13 MB/sec execute 54 sec latency 108.650 ms 1 1383 0.18 MB/sec execute 55 sec latency 139.740 ms 1 1419 0.18 MB/sec execute 56 sec latency 132.227 ms 1 1470 0.18 MB/sec execute 57 sec latency 83.766 ms test_26 fail mds2 2 times 1 1503 0.17 MB/sec execute 58 sec latency 153.765 ms 1 1540 0.17 MB/sec execute 59 sec latency 103.061 ms Failing mds2 on oleg153-server 1 1564 0.17 MB/sec execute 60 sec latency 158.454 ms Stopping /mnt/lustre-mds2 (opts:) on oleg153-server 1 1603 0.17 MB/sec execute 61 sec latency 107.677 ms 1 1632 0.17 MB/sec execute 62 sec latency 138.661 ms 1 1680 0.16 MB/sec execute 63 sec latency 108.236 ms 1 1713 0.16 MB/sec execute 64 sec latency 167.299 ms 09:06:14 (1787576774) shut down facet: mds2 facet_host: oleg153-server facet_failover_host: oleg153-server 1 1785 0.16 MB/sec execute 65 sec latency 85.093 ms 1 1855 0.16 MB/sec execute 66 sec latency 94.789 ms 1 1918 0.16 MB/sec execute 67 sec latency 92.233 ms 1 1998 0.16 MB/sec execute 68 sec latency 76.272 ms 1 2080 0.16 MB/sec execute 69 sec latency 76.665 ms 1 2150 0.15 MB/sec execute 70 sec latency 111.874 ms 1 2226 0.15 MB/sec execute 71 sec latency 73.842 ms 1 2259 0.15 MB/sec execute 72 sec latency 778.203 ms 1 2259 0.15 MB/sec execute 73 sec latency 1778.600 ms 1 2259 0.15 MB/sec execute 74 sec latency 2779.114 ms Failover mds2 to oleg153-server mount facets: mds2 1 2259 0.14 MB/sec execute 75 sec latency 3787.562 ms 1 2259 0.14 MB/sec execute 76 sec latency 4787.784 ms 1 2259 0.14 MB/sec execute 77 sec latency 5788.360 ms 1 2259 0.14 MB/sec execute 78 sec latency 6788.606 ms 1 2259 0.14 MB/sec execute 79 sec latency 7788.827 ms 1 2259 0.14 MB/sec execute 80 sec latency 8789.173 ms 1 2259 0.13 MB/sec execute 81 sec latency 9789.561 ms 1 2259 0.13 MB/sec execute 82 sec latency 10789.772 ms 1 2259 0.13 MB/sec execute 83 sec latency 11791.011 ms Start mds2: mount -t lustre -o localrecov /dev/mapper/mds2_flakey /mnt/lustre-mds2 1 2259 0.13 MB/sec execute 84 sec latency 12792.005 ms 1 2259 0.13 MB/sec execute 85 sec latency 13792.278 ms 1 2259 0.13 MB/sec execute 86 sec latency 14792.579 ms 1 2259 0.12 MB/sec execute 87 sec latency 15792.801 ms 1 2259 0.12 MB/sec execute 88 sec latency 16793.057 ms 1 2259 0.12 MB/sec execute 89 sec latency 17793.298 ms 1 2259 0.12 MB/sec execute 90 sec latency 18793.499 ms 1 2259 0.12 MB/sec execute 91 sec latency 19793.741 ms oleg153-server: oleg153-server.virtnet: executing set_default_debug -1 all 1 2259 0.12 MB/sec execute 92 sec latency 20797.220 ms 1 2259 0.12 MB/sec execute 93 sec latency 21807.588 ms pdsh@oleg153-client: oleg153-server: ssh exited with exit code 1 1 2300 0.13 MB/sec execute 94 sec latency 22017.251 ms Started lustre-MDT0001 1 2347 0.13 MB/sec execute 95 sec latency 121.646 ms 09:06:44 (1787576804) targets are mounted 09:06:44 (1787576804) facet_failover done 1 2376 0.13 MB/sec execute 96 sec latency 134.841 ms 1 2397 0.12 MB/sec execute 97 sec latency 151.051 ms 1 2423 0.12 MB/sec execute 98 sec latency 133.449 ms 1 2447 0.12 MB/sec execute 99 sec latency 127.918 ms 1 cleanup 100 sec 1 cleanup 101 sec 1 cleanup 102 sec 1 cleanup 103 sec 1 cleanup 104 sec oleg153-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0001-mdc-*.mds_server_uuid 1475 0 0 cleanup 105 sec Operation Count AvgLat MaxLat ---------------------------------------- NTCreateX 353 121.485 22017.234 Close 303 130.074 35603.797 Rename 14 100.148 145.393 Unlink 36 33.372 198.041 Qpathinfo 325 17.755 126.916 Qfileinfo 86 2.278 27.650 Qfsinfo 41 5.965 32.416 Sfileinfo 45 80.622 154.363 Find 110 14.336 113.721 WriteX 296 15.172 96.815 ReadX 383 3.425 89.490 Flush 34 73.329 151.035 Throughput 0.123119 MB/sec 1 clients 1 procs max_latency=35603.826 ms stopping dbench on /mnt/lustre at Mon Aug 24 09:06:54 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 crush2 /mnt/lustre2/d26.replay-dual/run_dbench 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 Mon Aug 24 09:07:03 EDT 2026 waiting for dbench pid 67849 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 UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2344 1268960 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 2152 1269152 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 27028 3577736 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 20188 3585660 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 47216 7163396 1% /mnt/lustre 0 10 0.00 MB/sec warmup 1 sec latency 46.118 ms 1 58 1.18 MB/sec warmup 2 sec latency 110.494 ms 1 96 1.44 MB/sec warmup 3 sec latency 205.654 ms 1 117 1.32 MB/sec warmup 4 sec latency 299.086 ms 1 139 1.20 MB/sec warmup 5 sec latency 216.028 ms 1 164 1.13 MB/sec warmup 6 sec latency 221.787 ms 1 181 1.04 MB/sec warmup 7 sec latency 655.422 ms 1 184 0.92 MB/sec warmup 8 sec latency 1594.222 ms 1 197 0.87 MB/sec warmup 9 sec latency 529.858 ms 1 223 0.86 MB/sec warmup 10 sec latency 212.069 ms 1 263 0.90 MB/sec warmup 11 sec latency 127.307 ms test_26 fail mds1 3 times 1 297 0.91 MB/sec warmup 12 sec latency 165.823 ms 1 329 0.92 MB/sec warmup 13 sec latency 145.445 ms Failing mds1 on oleg153-server 1 373 0.95 MB/sec warmup 14 sec latency 168.720 ms Stopping /mnt/lustre-mds1 (opts:) on oleg153-server 1 420 0.99 MB/sec warmup 15 sec latency 129.690 ms 1 444 0.98 MB/sec warmup 16 sec latency 197.828 ms 1 444 0.92 MB/sec warmup 17 sec latency 1155.448 ms 1 444 0.87 MB/sec warmup 18 sec latency 2155.642 ms 1 444 0.82 MB/sec warmup 19 sec latency 3155.925 ms 1 444 0.00 MB/sec execute 1 sec latency 5157.251 ms 1 444 0.00 MB/sec execute 2 sec latency 6157.410 ms 1 444 0.00 MB/sec execute 3 sec latency 7157.587 ms 09:07:27 (1787576847) shut down facet: mds1 facet_host: oleg153-server facet_failover_host: oleg153-server 1 444 0.00 MB/sec execute 4 sec latency 8157.955 ms 1 444 0.00 MB/sec execute 5 sec latency 9158.503 ms 1 444 0.00 MB/sec execute 6 sec latency 10158.810 ms 1 444 0.00 MB/sec execute 7 sec latency 11160.549 ms 1 444 0.00 MB/sec execute 8 sec latency 12160.752 ms 1 444 0.00 MB/sec execute 9 sec latency 13162.468 ms 1 444 0.00 MB/sec execute 10 sec latency 14164.533 ms 1 444 0.00 MB/sec execute 11 sec latency 15164.720 ms 1 444 0.00 MB/sec execute 12 sec latency 16170.565 ms 1 444 0.00 MB/sec execute 13 sec latency 17172.342 ms 1 444 0.00 MB/sec execute 14 sec latency 18174.645 ms Failover mds1 to oleg153-server mount facets: mds1 1 444 0.00 MB/sec execute 15 sec latency 19175.365 ms 1 444 0.00 MB/sec execute 16 sec latency 20175.657 ms 1 444 0.00 MB/sec execute 17 sec latency 21176.134 ms 1 444 0.00 MB/sec execute 18 sec latency 22176.619 ms 1 444 0.00 MB/sec execute 19 sec latency 23177.443 ms 1 444 0.00 MB/sec execute 20 sec latency 24177.733 ms 1 444 0.00 MB/sec execute 21 sec latency 25178.310 ms 1 444 0.00 MB/sec execute 22 sec latency 26179.006 ms 1 444 0.00 MB/sec execute 23 sec latency 27183.753 ms 1 444 0.00 MB/sec execute 24 sec latency 28184.930 ms 1 444 0.00 MB/sec execute 25 sec latency 29186.309 ms 1 444 0.00 MB/sec execute 26 sec latency 30186.500 ms 1 444 0.00 MB/sec execute 27 sec latency 31187.793 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 444 0.00 MB/sec execute 28 sec latency 32191.107 ms 1 444 0.00 MB/sec execute 29 sec latency 33191.334 ms 1 444 0.00 MB/sec execute 30 sec latency 34191.711 ms 1 444 0.00 MB/sec execute 31 sec latency 35192.574 ms 1 444 0.00 MB/sec execute 32 sec latency 36196.537 ms 1 444 0.00 MB/sec execute 33 sec latency 37196.828 ms 1 444 0.00 MB/sec execute 34 sec latency 38197.074 ms 1 444 0.00 MB/sec execute 35 sec latency 39197.509 ms 1 444 0.00 MB/sec execute 36 sec latency 40200.097 ms oleg153-server: oleg153-server.virtnet: executing set_default_debug -1 all 1 444 0.00 MB/sec execute 37 sec latency 41200.375 ms 1 444 0.00 MB/sec execute 38 sec latency 42201.343 ms pdsh@oleg153-client: oleg153-server: ssh exited with exit code 1 1 445 0.00 MB/sec execute 39 sec latency 42987.256 ms 1 470 0.02 MB/sec execute 40 sec latency 295.098 ms Started lustre-MDT0000 09:08:04 (1787576884) targets are mounted 09:08:04 (1787576884) facet_failover done 1 509 0.05 MB/sec execute 41 sec latency 132.634 ms 1 546 0.08 MB/sec execute 42 sec latency 152.718 ms 1 640 0.13 MB/sec execute 43 sec latency 95.316 ms 1 671 0.13 MB/sec execute 44 sec latency 142.549 ms 1 697 0.12 MB/sec execute 45 sec latency 165.095 ms 1 721 0.12 MB/sec execute 46 sec latency 130.432 ms 1 740 0.12 MB/sec execute 47 sec latency 206.269 ms 1 769 0.12 MB/sec execute 48 sec latency 155.386 ms oleg153-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 789 0.12 MB/sec execute 49 sec latency 176.344 ms 1 808 0.12 MB/sec execute 50 sec latency 177.705 ms 1 848 0.12 MB/sec execute 51 sec latency 154.171 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 873 0.12 MB/sec execute 52 sec latency 147.169 ms 1 884 0.11 MB/sec execute 53 sec latency 554.650 ms 1 884 0.11 MB/sec execute 54 sec latency 1556.693 ms 1 903 0.11 MB/sec execute 55 sec latency 1659.792 ms 1 921 0.11 MB/sec execute 56 sec latency 165.606 ms 1 957 0.11 MB/sec execute 57 sec latency 189.831 ms 1 986 0.11 MB/sec execute 58 sec latency 115.516 ms 1 1051 0.12 MB/sec execute 59 sec latency 98.026 ms tar: Unexpected EOF in archive tar: Unexpected EOF in archive 1 1084 0.12 MB/sec execute 60 sec latency 145.648 ms 1 1136 0.12 MB/sec execute 61 sec latency 114.158 ms 1 1173 0.12 MB/sec execute 62 sec latency 126.354 ms 1 1215 0.12 MB/sec execute 63 sec latency 87.233 ms 1 1248 0.12 MB/sec execute 64 sec latency 110.157 ms 1 1276 0.12 MB/sec execute 65 sec latency 142.366 ms 1 1401 0.16 MB/sec execute 66 sec latency 131.749 ms 1 1428 0.15 MB/sec execute 67 sec latency 134.734 ms 1 1462 0.15 MB/sec execute 68 sec latency 110.398 ms 1 1474 0.15 MB/sec execute 69 sec latency 590.359 ms 1 1499 0.15 MB/sec execute 70 sec latency 227.128 ms 1 1519 0.15 MB/sec execute 71 sec latency 187.505 ms 1 1555 0.14 MB/sec execute 72 sec latency 123.886 ms tar: Error is not recoverable: exiting now 1 1572 0.14 MB/sec execute 73 sec latency 127.258 ms dbench killed by signal 15 stopping dbench on /mnt/lustre at Mon Aug 24 09:08:37 EDT 2026 with return code 0 67849 pts/0 S+ 0:00 dbench -c client.txt 1 -D /mnt/lustre2/d26.replay-dual/run_dbench -t 100 killed dbench main pid 67849 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished