== replay-dual test 26: dbench and tar with mds failover ========================================================== 15:44:46 (1789069486) Starting client oleg602-client.virtnet: -o user_xattr,flock 192.168.206.102@tcp:/lustre /mnt/lustre Started clients oleg602-client.virtnet: 192.168.206.102@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 65623 Started dbench loop with 65624 striped dir -i0 -c2 -H all_char /mnt/lustre2/d26.replay-dual/run_dbench striped dir -i0 -c2 -H crush /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 1956 1269348 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 1748 1269556 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 1564 3605456 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 1544 3588920 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 3108 7194376 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 15:44:54 EDT 2026 waiting for dbench pid 65702 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 2.671 ms 1 65 1.41 MB/sec warmup 2 sec latency 128.131 ms 1 121 1.83 MB/sec warmup 3 sec latency 174.240 ms 1 152 1.60 MB/sec warmup 4 sec latency 208.991 ms 1 181 1.46 MB/sec warmup 5 sec latency 184.372 ms 1 197 1.31 MB/sec warmup 6 sec latency 373.824 ms 1 227 1.24 MB/sec warmup 7 sec latency 166.811 ms 1 267 1.25 MB/sec warmup 8 sec latency 137.176 ms 1 313 1.27 MB/sec warmup 9 sec latency 116.413 ms test_26 fail mds1 1 times 1 341 1.22 MB/sec warmup 10 sec latency 148.306 ms 1 373 1.21 MB/sec warmup 11 sec latency 186.480 ms Failing mds1 on oleg602-server 1 400 1.17 MB/sec warmup 12 sec latency 225.631 ms Stopping /mnt/lustre-mds1 (opts:) on oleg602-server 1 434 1.17 MB/sec warmup 13 sec latency 167.154 ms 1 469 1.17 MB/sec warmup 14 sec latency 140.667 ms 1 501 1.16 MB/sec warmup 15 sec latency 349.081 ms 1 501 1.09 MB/sec warmup 16 sec latency 1349.314 ms 1 501 1.02 MB/sec warmup 17 sec latency 2353.955 ms 15:45:11 (1789069511) shut down facet: mds1 facet_host: oleg602-server facet_failover_host: oleg602-server 1 501 0.97 MB/sec warmup 18 sec latency 3354.745 ms 1 501 0.92 MB/sec warmup 19 sec latency 4355.478 ms 1 501 0.00 MB/sec execute 1 sec latency 6356.032 ms 1 501 0.00 MB/sec execute 2 sec latency 7356.612 ms 1 501 0.00 MB/sec execute 3 sec latency 8357.735 ms 1 501 0.00 MB/sec execute 4 sec latency 9357.914 ms 1 501 0.00 MB/sec execute 5 sec latency 10358.796 ms 1 501 0.00 MB/sec execute 6 sec latency 11359.013 ms 1 501 0.00 MB/sec execute 7 sec latency 12359.435 ms 1 501 0.00 MB/sec execute 8 sec latency 13359.600 ms Failover mds1 to oleg602-server mount facets: mds1 1 501 0.00 MB/sec execute 9 sec latency 14360.824 ms 1 501 0.00 MB/sec execute 10 sec latency 15363.439 ms 1 501 0.00 MB/sec execute 11 sec latency 16363.639 ms 1 501 0.00 MB/sec execute 12 sec latency 17374.024 ms 1 501 0.00 MB/sec execute 13 sec latency 18378.440 ms 1 501 0.00 MB/sec execute 14 sec latency 19379.021 ms 1 501 0.00 MB/sec execute 15 sec latency 20381.223 ms 1 501 0.00 MB/sec execute 16 sec latency 21381.800 ms 1 501 0.00 MB/sec execute 17 sec latency 22386.001 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 501 0.00 MB/sec execute 18 sec latency 23387.218 ms 1 501 0.00 MB/sec execute 19 sec latency 24387.702 ms 1 501 0.00 MB/sec execute 20 sec latency 25388.983 ms 1 501 0.00 MB/sec execute 21 sec latency 26389.524 ms 1 501 0.00 MB/sec execute 22 sec latency 27391.488 ms 1 501 0.00 MB/sec execute 23 sec latency 28391.723 ms 1 501 0.00 MB/sec execute 24 sec latency 29392.052 ms 1 501 0.00 MB/sec execute 25 sec latency 30396.554 ms 1 501 0.00 MB/sec execute 26 sec latency 31398.312 ms 1 501 0.00 MB/sec execute 27 sec latency 32399.948 ms 1 501 0.00 MB/sec execute 28 sec latency 33400.448 ms 1 501 0.00 MB/sec execute 29 sec latency 34401.389 ms oleg602-server: oleg602-server.virtnet: executing set_default_debug -1 all 1 501 0.00 MB/sec execute 30 sec latency 35401.967 ms pdsh@oleg602-client: oleg602-server: ssh exited with exit code 1 1 501 0.00 MB/sec execute 31 sec latency 36406.725 ms Started lustre-MDT0000 15:45:46 (1789069546) targets are mounted 15:45:46 (1789069546) facet_failover done 1 513 0.01 MB/sec execute 32 sec latency 36974.937 ms 1 552 0.05 MB/sec execute 33 sec latency 148.431 ms 1 591 0.09 MB/sec execute 34 sec latency 709.934 ms 1 639 0.10 MB/sec execute 35 sec latency 150.792 ms 1 676 0.10 MB/sec execute 36 sec latency 151.041 ms 1 711 0.10 MB/sec execute 37 sec latency 149.843 ms 1 741 0.10 MB/sec execute 38 sec latency 124.950 ms 1 788 0.10 MB/sec execute 39 sec latency 144.933 ms oleg602-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 808 0.10 MB/sec execute 40 sec latency 157.529 ms 1 851 0.10 MB/sec execute 41 sec latency 103.978 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 880 0.10 MB/sec execute 42 sec latency 175.053 ms 1 904 0.10 MB/sec execute 43 sec latency 150.653 ms 1 933 0.10 MB/sec execute 44 sec latency 136.557 ms 1 969 0.10 MB/sec execute 45 sec latency 169.113 ms 1 990 0.10 MB/sec execute 46 sec latency 129.881 ms 1 1051 0.12 MB/sec execute 47 sec latency 117.506 ms 1 1095 0.11 MB/sec execute 48 sec latency 98.959 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2120 1269184 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 1892 1269412 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 9676 3595152 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 41532 3559180 2% /mnt/lustre[OST:1] filesystem_summary: 7666232 51208 7154332 1% /mnt/lustre 1 1135 0.11 MB/sec execute 49 sec latency 161.031 ms 1 1172 0.11 MB/sec execute 50 sec latency 132.007 ms 1 1176 0.11 MB/sec execute 51 sec latency 917.702 ms 1 1214 0.11 MB/sec execute 52 sec latency 109.136 ms 1 1248 0.11 MB/sec execute 53 sec latency 101.361 ms 1 1273 0.10 MB/sec execute 54 sec latency 272.575 ms 1 1273 0.10 MB/sec execute 55 sec latency 1272.817 ms 1 1399 0.15 MB/sec execute 56 sec latency 1435.130 ms 1 1451 0.15 MB/sec execute 57 sec latency 70.152 ms 1 1499 0.15 MB/sec execute 58 sec latency 91.646 ms test_26 fail mds2 2 times 1 1540 0.15 MB/sec execute 59 sec latency 111.063 ms 1 1591 0.14 MB/sec execute 60 sec latency 102.846 ms Failing mds2 on oleg602-server 1 1632 0.14 MB/sec execute 61 sec latency 125.427 ms Stopping /mnt/lustre-mds2 (opts:) on oleg602-server 1 1670 0.14 MB/sec execute 62 sec latency 119.201 ms 1 1686 0.14 MB/sec execute 63 sec latency 664.364 ms 1 1686 0.14 MB/sec execute 64 sec latency 1668.662 ms 15:46:19 (1789069579) shut down facet: mds2 facet_host: oleg602-server facet_failover_host: oleg602-server 1 1686 0.13 MB/sec execute 65 sec latency 2679.717 ms 1 1686 0.13 MB/sec execute 66 sec latency 3682.990 ms 1 1686 0.13 MB/sec execute 67 sec latency 4684.393 ms 1 1686 0.13 MB/sec execute 68 sec latency 5684.674 ms 1 1686 0.13 MB/sec execute 69 sec latency 6686.438 ms 1 1686 0.12 MB/sec execute 70 sec latency 7686.689 ms 1 1686 0.12 MB/sec execute 71 sec latency 8687.907 ms 1 1686 0.12 MB/sec execute 72 sec latency 9688.172 ms 1 1686 0.12 MB/sec execute 73 sec latency 10690.179 ms 1 1686 0.12 MB/sec execute 74 sec latency 11690.450 ms 1 1686 0.12 MB/sec execute 75 sec latency 12690.700 ms Failover mds2 to oleg602-server mount facets: mds2 1 1686 0.11 MB/sec execute 76 sec latency 13691.910 ms 1 1686 0.11 MB/sec execute 77 sec latency 14693.223 ms 1 1686 0.11 MB/sec execute 78 sec latency 15693.916 ms 1 1686 0.11 MB/sec execute 79 sec latency 16694.393 ms 1 1686 0.11 MB/sec execute 80 sec latency 17694.652 ms 1 1686 0.11 MB/sec execute 81 sec latency 18694.844 ms 1 1686 0.11 MB/sec execute 82 sec latency 19694.997 ms 1 1686 0.11 MB/sec execute 83 sec latency 20695.207 ms Start mds2: mount -t lustre -o localrecov /dev/mapper/mds2_flakey /mnt/lustre-mds2 1 1686 0.10 MB/sec execute 84 sec latency 21695.527 ms 1 1686 0.10 MB/sec execute 85 sec latency 22695.719 ms 1 1686 0.10 MB/sec execute 86 sec latency 23695.994 ms 1 1686 0.10 MB/sec execute 87 sec latency 24696.456 ms 1 1686 0.10 MB/sec execute 88 sec latency 25696.957 ms 1 1686 0.10 MB/sec execute 89 sec latency 26697.193 ms 1 1686 0.10 MB/sec execute 90 sec latency 27697.415 ms oleg602-server: oleg602-server.virtnet: executing set_default_debug -1 all 1 1686 0.10 MB/sec execute 91 sec latency 28697.914 ms pdsh@oleg602-client: oleg602-server: ssh exited with exit code 1 1 1686 0.09 MB/sec execute 92 sec latency 29698.078 ms 1 1686 0.09 MB/sec execute 93 sec latency 30698.918 ms Started lustre-MDT0001 15:46:47 (1789069607) targets are mounted 15:46:47 (1789069607) facet_failover done 1 1689 0.09 MB/sec execute 94 sec latency 31557.328 ms 1 1723 0.09 MB/sec execute 95 sec latency 131.634 ms 1 1772 0.09 MB/sec execute 96 sec latency 130.505 ms 1 1817 0.09 MB/sec execute 97 sec latency 99.992 ms 1 1845 0.09 MB/sec execute 98 sec latency 129.236 ms 1 1884 0.09 MB/sec execute 99 sec latency 189.745 ms 1 cleanup 100 sec 1 cleanup 101 sec oleg602-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0001-mdc-*.mds_server_uuid 1475 0 1 cleanup 102 sec mdc.lustre-MDT0001-mdc-*.mds_server_uuid in FULL state after 0 sec 1 cleanup 103 sec 0 cleanup 104 sec Operation Count AvgLat MaxLat ---------------------------------------- NTCreateX 255 208.341 36974.917 Close 220 14.439 39.224 Rename 11 2972.034 31557.297 Unlink 25 86.538 1435.102 Qpathinfo 217 18.483 109.115 Qfileinfo 58 2.324 24.496 Qfsinfo 33 6.054 34.270 Sfileinfo 34 72.534 157.514 Find 75 16.488 137.857 WriteX 198 14.567 65.664 ReadX 297 0.376 35.001 Flush 30 58.161 144.114 Throughput 0.0897975 MB/sec 1 clients 1 procs max_latency=36974.937 ms stopping dbench on /mnt/lustre at Thu Sep 10 15:46:58 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 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 2344 1268960 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 2108 1269196 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 2640 3604240 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 20020 3586532 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 22660 7190772 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 15:47:06 EDT 2026 waiting for dbench pid 67877 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 40.704 ms 1 52 1.05 MB/sec warmup 2 sec latency 144.692 ms 1 91 1.40 MB/sec warmup 3 sec latency 356.648 ms 1 91 1.05 MB/sec warmup 4 sec latency 1356.943 ms 1 130 1.15 MB/sec warmup 5 sec latency 1516.955 ms 1 165 1.13 MB/sec warmup 6 sec latency 163.860 ms 1 197 1.12 MB/sec warmup 7 sec latency 401.579 ms test_26 fail mds1 3 times 1 238 1.14 MB/sec warmup 8 sec latency 118.076 ms 1 272 1.13 MB/sec warmup 9 sec latency 162.624 ms Failing mds1 on oleg602-server Stopping /mnt/lustre-mds1 (opts:) on oleg602-server 1 315 1.15 MB/sec warmup 10 sec latency 133.114 ms 1 341 1.11 MB/sec warmup 11 sec latency 359.254 ms 1 341 1.02 MB/sec warmup 12 sec latency 1362.494 ms 1 341 0.94 MB/sec warmup 13 sec latency 2362.839 ms 1 341 0.87 MB/sec warmup 14 sec latency 3363.087 ms 1 341 0.82 MB/sec warmup 15 sec latency 4363.353 ms 1 341 0.77 MB/sec warmup 16 sec latency 5363.681 ms 1 341 0.72 MB/sec warmup 17 sec latency 6365.337 ms 1 341 0.68 MB/sec warmup 18 sec latency 7365.545 ms 15:47:25 (1789069645) shut down facet: mds1 facet_host: oleg602-server facet_failover_host: oleg602-server 1 341 0.64 MB/sec warmup 19 sec latency 8366.833 ms 1 341 0.00 MB/sec execute 1 sec latency 10367.294 ms 1 341 0.00 MB/sec execute 2 sec latency 11367.885 ms 1 341 0.00 MB/sec execute 3 sec latency 12368.153 ms 1 341 0.00 MB/sec execute 4 sec latency 13368.381 ms 1 341 0.00 MB/sec execute 5 sec latency 14368.914 ms 1 341 0.00 MB/sec execute 6 sec latency 15369.243 ms 1 341 0.00 MB/sec execute 7 sec latency 16369.487 ms 1 341 0.00 MB/sec execute 8 sec latency 17369.782 ms 1 341 0.00 MB/sec execute 9 sec latency 18370.030 ms Failover mds1 to oleg602-server mount facets: mds1 1 341 0.00 MB/sec execute 10 sec latency 19370.300 ms 1 341 0.00 MB/sec execute 11 sec latency 20370.617 ms 1 341 0.00 MB/sec execute 12 sec latency 21373.933 ms 1 341 0.00 MB/sec execute 13 sec latency 22374.191 ms 1 341 0.00 MB/sec execute 14 sec latency 23375.419 ms 1 341 0.00 MB/sec execute 15 sec latency 24376.581 ms 1 341 0.00 MB/sec execute 16 sec latency 25376.925 ms 1 341 0.00 MB/sec execute 17 sec latency 26377.269 ms 1 341 0.00 MB/sec execute 18 sec latency 27377.615 ms 1 341 0.00 MB/sec execute 19 sec latency 28380.129 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 341 0.00 MB/sec execute 20 sec latency 29380.995 ms 1 341 0.00 MB/sec execute 21 sec latency 30384.476 ms 1 341 0.00 MB/sec execute 22 sec latency 31386.607 ms 1 341 0.00 MB/sec execute 23 sec latency 32386.883 ms 1 341 0.00 MB/sec execute 24 sec latency 33389.992 ms 1 341 0.00 MB/sec execute 25 sec latency 34394.676 ms 1 341 0.00 MB/sec execute 26 sec latency 35394.843 ms 1 341 0.00 MB/sec execute 27 sec latency 36395.409 ms 1 341 0.00 MB/sec execute 28 sec latency 37398.763 ms 1 341 0.00 MB/sec execute 29 sec latency 38399.134 ms 1 341 0.00 MB/sec execute 30 sec latency 39405.788 ms 1 341 0.00 MB/sec execute 31 sec latency 40406.645 ms oleg602-server: oleg602-server.virtnet: executing set_default_debug -1 all 1 341 0.00 MB/sec execute 32 sec latency 41408.481 ms pdsh@oleg602-client: oleg602-server: ssh exited with exit code 1 1 341 0.00 MB/sec execute 33 sec latency 42409.195 ms Started lustre-MDT0000 15:47:59 (1789069679) targets are mounted 15:47:59 (1789069679) facet_failover done 1 365 0.02 MB/sec execute 34 sec latency 42849.333 ms 1 406 0.06 MB/sec execute 35 sec latency 109.271 ms 1 445 0.09 MB/sec execute 36 sec latency 128.228 ms 1 485 0.13 MB/sec execute 37 sec latency 134.147 ms 1 516 0.14 MB/sec execute 38 sec latency 173.261 ms 1 592 0.21 MB/sec execute 39 sec latency 154.192 ms oleg602-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 651 0.22 MB/sec execute 40 sec latency 103.954 ms 1 689 0.22 MB/sec execute 41 sec latency 124.913 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 711 0.21 MB/sec execute 42 sec latency 181.760 ms 1 738 0.21 MB/sec execute 43 sec latency 104.484 ms 1 773 0.21 MB/sec execute 44 sec latency 143.839 ms 1 799 0.20 MB/sec execute 45 sec latency 105.341 ms 1 845 0.20 MB/sec execute 46 sec latency 126.133 ms 1 882 0.20 MB/sec execute 47 sec latency 117.550 ms 1 884 0.20 MB/sec execute 48 sec latency 960.833 ms 1 903 0.19 MB/sec execute 49 sec latency 1262.485 ms 1 940 0.19 MB/sec execute 50 sec latency 104.192 ms 1 977 0.19 MB/sec execute 51 sec latency 102.888 ms tar: Unexpected EOF in archive tar: Unexpected EOF in archive 1 1043 0.20 MB/sec execute 52 sec latency 86.363 ms 1 1105 0.20 MB/sec execute 53 sec latency 72.968 ms 1 1154 0.20 MB/sec execute 54 sec latency 114.261 ms 1 1182 0.20 MB/sec execute 55 sec latency 131.329 ms 1 1225 0.19 MB/sec execute 56 sec latency 116.934 ms 1 1268 0.19 MB/sec execute 57 sec latency 97.528 ms 1 1397 0.24 MB/sec execute 58 sec latency 110.466 ms 1 1428 0.23 MB/sec execute 59 sec latency 201.336 ms 1 1467 0.23 MB/sec execute 60 sec latency 220.444 ms 1 1502 0.23 MB/sec execute 61 sec latency 373.410 ms 1 1555 0.22 MB/sec execute 62 sec latency 79.965 ms tar: Error is not recoverable: exiting now dbench killed by signal 15 stopping dbench on /mnt/lustre at Thu Sep 10 15:48:29 EDT 2026 with return code 0 67877 pts/0 S+ 0:00 dbench -c client.txt 1 -D /mnt/lustre2/d26.replay-dual/run_dbench -t 100 killed dbench main pid 67877 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished