== replay-dual test 26: dbench and tar with mds failover ========================================================== 11:16:23 (1788362183) Starting client oleg352-client.virtnet: -o user_xattr,flock 192.168.203.152@tcp:/lustre /mnt/lustre Started clients oleg352-client.virtnet: 192.168.203.152@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 65509 Started dbench loop with 65510 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 '/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 Sep 2 11:16:25 EDT 2026 waiting for dbench pid 65551 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 UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 1992 1269312 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 1788 1269516 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 1564 3579512 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 1544 3605476 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 3108 7184988 1% /mnt/lustre 1 103 4.78 MB/sec warmup 1 sec latency 46.640 ms 1 174 3.53 MB/sec warmup 2 sec latency 79.378 ms 1 247 3.13 MB/sec warmup 3 sec latency 176.039 ms 1 341 3.07 MB/sec warmup 4 sec latency 61.228 ms 1 437 3.08 MB/sec warmup 5 sec latency 48.441 ms 1 535 3.12 MB/sec warmup 6 sec latency 51.254 ms test_26 fail mds1 1 times Failing mds1 on oleg352-server 1 686 3.03 MB/sec warmup 7 sec latency 73.278 ms Stopping /mnt/lustre-mds1 (opts:) on oleg352-server 1 778 2.67 MB/sec warmup 8 sec latency 61.775 ms 1 884 2.41 MB/sec warmup 9 sec latency 59.245 ms 1 940 2.18 MB/sec warmup 10 sec latency 418.153 ms 1 995 1.99 MB/sec warmup 11 sec latency 496.988 ms 1 995 1.83 MB/sec warmup 12 sec latency 1497.225 ms 1 995 1.68 MB/sec warmup 13 sec latency 2497.576 ms 1 995 1.56 MB/sec warmup 14 sec latency 3497.974 ms 11:16:40 (1788362200) shut down facet: mds1 facet_host: oleg352-server facet_failover_host: oleg352-server 1 995 1.46 MB/sec warmup 15 sec latency 4498.165 ms 1 995 1.37 MB/sec warmup 16 sec latency 5498.389 ms 1 995 1.29 MB/sec warmup 17 sec latency 6498.604 ms 1 995 1.22 MB/sec warmup 18 sec latency 7498.813 ms 1 995 1.15 MB/sec warmup 19 sec latency 8499.030 ms 1 995 0.00 MB/sec execute 1 sec latency 10499.339 ms 1 995 0.00 MB/sec execute 2 sec latency 11499.531 ms 1 995 0.00 MB/sec execute 3 sec latency 12499.712 ms 1 995 0.00 MB/sec execute 4 sec latency 13499.888 ms Failover mds1 to oleg352-server mount facets: mds1 1 995 0.00 MB/sec execute 5 sec latency 14500.021 ms 1 995 0.00 MB/sec execute 6 sec latency 15500.411 ms 1 995 0.00 MB/sec execute 7 sec latency 16500.644 ms 1 995 0.00 MB/sec execute 8 sec latency 17503.616 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 995 0.00 MB/sec execute 9 sec latency 18503.916 ms 1 995 0.00 MB/sec execute 10 sec latency 19504.072 ms oleg352-server: oleg352-server.virtnet: executing set_default_debug -1 all 1 995 0.00 MB/sec execute 11 sec latency 20504.468 ms pdsh@oleg352-client: oleg352-server: ssh exited with exit code 1 Started lustre-MDT0000 11:16:57 (1788362217) targets are mounted 11:16:57 (1788362217) facet_failover done 1 995 0.00 MB/sec execute 12 sec latency 21504.993 ms 1 995 0.00 MB/sec execute 13 sec latency 22505.125 ms 1 995 0.00 MB/sec execute 14 sec latency 23505.299 ms 1 995 0.00 MB/sec execute 15 sec latency 24505.408 ms 1 1028 0.06 MB/sec execute 16 sec latency 25077.031 ms 1 1147 0.06 MB/sec execute 17 sec latency 35.258 ms oleg352-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 1214 0.06 MB/sec execute 18 sec latency 65.644 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 1315 0.11 MB/sec execute 19 sec latency 54.602 ms 1 1467 0.21 MB/sec execute 20 sec latency 73.858 ms 1 1555 0.20 MB/sec execute 21 sec latency 158.854 ms 1 1677 0.20 MB/sec execute 22 sec latency 44.719 ms 1 1813 0.19 MB/sec execute 23 sec latency 50.972 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2252 1269052 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 2032 1269272 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 38116 3568652 2% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 20880 3585888 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 58996 7154540 1% /mnt/lustre 1 1962 0.19 MB/sec execute 24 sec latency 35.705 ms 1 2083 0.19 MB/sec execute 25 sec latency 33.151 ms 1 2156 0.18 MB/sec execute 26 sec latency 441.653 ms 1 2294 0.22 MB/sec execute 27 sec latency 49.634 ms 1 2389 0.22 MB/sec execute 28 sec latency 57.033 ms test_26 fail mds2 2 times Failing mds2 on oleg352-server 1 2467 0.23 MB/sec execute 29 sec latency 55.920 ms Stopping /mnt/lustre-mds2 (opts:) on oleg352-server 1 2597 0.24 MB/sec execute 30 sec latency 42.008 ms 1 2903 0.35 MB/sec execute 31 sec latency 36.946 ms 1 3176 0.38 MB/sec execute 32 sec latency 39.636 ms 1 3363 0.41 MB/sec execute 33 sec latency 41.565 ms 1 3577 0.49 MB/sec execute 34 sec latency 37.885 ms 1 3715 0.48 MB/sec execute 35 sec latency 28.395 ms 1 3840 0.50 MB/sec execute 36 sec latency 44.836 ms 11:17:22 (1788362242) shut down facet: mds2 facet_host: oleg352-server facet_failover_host: oleg352-server 1 3939 0.49 MB/sec execute 37 sec latency 40.669 ms 1 4040 0.48 MB/sec execute 38 sec latency 56.607 ms 1 4083 0.47 MB/sec execute 39 sec latency 591.671 ms 1 4083 0.45 MB/sec execute 40 sec latency 1591.883 ms 1 4083 0.44 MB/sec execute 41 sec latency 2593.083 ms 1 4083 0.43 MB/sec execute 42 sec latency 3593.217 ms 1 4083 0.42 MB/sec execute 43 sec latency 4593.898 ms 1 4083 0.41 MB/sec execute 44 sec latency 5594.115 ms 1 4083 0.40 MB/sec execute 45 sec latency 6594.264 ms 1 4083 0.40 MB/sec execute 46 sec latency 7594.474 ms Failover mds2 to oleg352-server mount facets: mds2 1 4083 0.39 MB/sec execute 47 sec latency 8594.680 ms 1 4083 0.38 MB/sec execute 48 sec latency 9595.218 ms 1 4083 0.37 MB/sec execute 49 sec latency 10595.615 ms 1 4083 0.36 MB/sec execute 50 sec latency 11595.863 ms Start mds2: mount -t lustre -o localrecov /dev/mapper/mds2_flakey /mnt/lustre-mds2 1 4083 0.36 MB/sec execute 51 sec latency 12595.996 ms 1 4083 0.35 MB/sec execute 52 sec latency 13596.195 ms 1 4083 0.34 MB/sec execute 53 sec latency 14596.784 ms oleg352-server: oleg352-server.virtnet: executing set_default_debug -1 all pdsh@oleg352-client: oleg352-server: ssh exited with exit code 1 1 4083 0.34 MB/sec execute 54 sec latency 15599.293 ms Started lustre-MDT0001 11:17:40 (1788362260) targets are mounted 11:17:40 (1788362260) facet_failover done 1 4083 0.33 MB/sec execute 55 sec latency 16599.471 ms 1 4083 0.32 MB/sec execute 56 sec latency 17599.691 ms 1 4083 0.32 MB/sec execute 57 sec latency 18599.881 ms 1 4113 0.31 MB/sec execute 58 sec latency 19305.266 ms 1 4241 0.31 MB/sec execute 59 sec latency 47.621 ms oleg352-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0001-mdc-*.mds_server_uuid 1475 0 1 4333 0.31 MB/sec execute 60 sec latency 80.241 ms mdc.lustre-MDT0001-mdc-*.mds_server_uuid in FULL state after 0 sec 1 4426 0.31 MB/sec execute 61 sec latency 52.870 ms 1 4509 0.31 MB/sec execute 62 sec latency 47.527 ms 1 4618 0.32 MB/sec execute 63 sec latency 47.578 ms 1 4729 0.32 MB/sec execute 64 sec latency 43.045 ms 1 4812 0.31 MB/sec execute 65 sec latency 57.702 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2616 1268688 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 2464 1268840 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 38272 3567508 2% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 31168 3574620 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 69440 7142128 1% /mnt/lustre 1 4969 0.35 MB/sec execute 66 sec latency 48.643 ms 1 5058 0.35 MB/sec execute 67 sec latency 46.259 ms 1 5147 0.34 MB/sec execute 68 sec latency 48.389 ms 1 5251 0.34 MB/sec execute 69 sec latency 56.653 ms 1 5342 0.34 MB/sec execute 70 sec latency 58.011 ms test_26 fail mds1 3 times 1 5434 0.33 MB/sec execute 71 sec latency 36.911 ms Failing mds1 on oleg352-server Stopping /mnt/lustre-mds1 (opts:) on oleg352-server 1 5567 0.33 MB/sec execute 72 sec latency 44.084 ms 1 5659 0.33 MB/sec execute 73 sec latency 277.457 ms 11:17:59 (1788362279) shut down facet: mds1 facet_host: oleg352-server facet_failover_host: oleg352-server 1 5799 0.32 MB/sec execute 74 sec latency 35.225 ms 1 5820 0.32 MB/sec execute 75 sec latency 903.479 ms 1 5820 0.32 MB/sec execute 76 sec latency 1903.690 ms 1 5820 0.31 MB/sec execute 77 sec latency 2903.932 ms 1 5820 0.31 MB/sec execute 78 sec latency 3904.484 ms 1 5820 0.30 MB/sec execute 79 sec latency 4904.667 ms 1 5820 0.30 MB/sec execute 80 sec latency 5904.846 ms 1 5820 0.30 MB/sec execute 81 sec latency 6905.548 ms 1 5820 0.29 MB/sec execute 82 sec latency 7906.046 ms 1 5820 0.29 MB/sec execute 83 sec latency 8907.772 ms Failover mds1 to oleg352-server mount facets: mds1 1 5820 0.29 MB/sec execute 84 sec latency 9907.965 ms 1 5820 0.28 MB/sec execute 85 sec latency 10908.171 ms 1 5820 0.28 MB/sec execute 86 sec latency 11908.449 ms 1 5820 0.28 MB/sec execute 87 sec latency 12908.692 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 5820 0.27 MB/sec execute 88 sec latency 13908.909 ms 1 5820 0.27 MB/sec execute 89 sec latency 14909.100 ms 1 5820 0.27 MB/sec execute 90 sec latency 15909.348 ms oleg352-server: oleg352-server.virtnet: executing set_default_debug -1 all pdsh@oleg352-client: oleg352-server: ssh exited with exit code 1 1 5820 0.26 MB/sec execute 91 sec latency 16909.468 ms Started lustre-MDT0000 11:18:17 (1788362297) targets are mounted 11:18:17 (1788362297) facet_failover done 1 5820 0.26 MB/sec execute 92 sec latency 17909.623 ms 1 5820 0.26 MB/sec execute 93 sec latency 18909.916 ms 1 5820 0.26 MB/sec execute 94 sec latency 19911.302 ms 1 5865 0.26 MB/sec execute 95 sec latency 20632.098 ms 1 5966 0.26 MB/sec execute 96 sec latency 47.200 ms oleg352-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 6057 0.27 MB/sec execute 97 sec latency 48.326 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 6276 0.30 MB/sec execute 98 sec latency 72.802 ms 1 6532 0.31 MB/sec execute 99 sec latency 46.550 ms 1 cleanup 100 sec 1 cleanup 101 sec 0 cleanup 102 sec Operation Count AvgLat MaxLat ---------------------------------------- NTCreateX 951 71.095 25077.019 Close 728 4.676 39.906 Rename 44 37.847 72.785 Unlink 163 11.148 22.638 Qpathinfo 943 27.275 19305.247 Qfileinfo 176 1.194 8.483 Qfsinfo 144 0.793 7.119 Sfileinfo 82 26.875 52.467 Find 326 5.200 31.025 WriteX 497 5.686 41.707 ReadX 1653 0.373 78.389 LockX 4 4.067 6.749 UnlockX 4 5.057 8.524 Flush 58 23.886 48.314 Throughput 0.310159 MB/sec 1 clients 1 procs max_latency=25077.031 ms stopping dbench on /mnt/lustre at Wed Sep 2 11:18:27 EDT 2026 with return code 0 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 3080 1268224 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 2820 1268484 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 34660 3570340 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 26980 3578472 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 61640 7148812 1% /mnt/lustre 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 Wed Sep 2 11:18:30 EDT 2026 waiting for dbench pid 68840 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 92 4.19 MB/sec warmup 1 sec latency 52.128 ms 1 173 3.53 MB/sec warmup 2 sec latency 73.041 ms test_26 fail mds2 4 times 1 243 3.07 MB/sec warmup 3 sec latency 188.367 ms Failing mds2 on oleg352-server Stopping /mnt/lustre-mds2 (opts:) on oleg352-server 1 316 2.87 MB/sec warmup 4 sec latency 85.482 ms 1 379 2.70 MB/sec warmup 5 sec latency 166.978 ms 11:18:36 (1788362316) shut down facet: mds2 facet_host: oleg352-server facet_failover_host: oleg352-server 1 485 2.82 MB/sec warmup 6 sec latency 54.537 ms 1 501 2.49 MB/sec warmup 7 sec latency 873.620 ms 1 501 2.18 MB/sec warmup 8 sec latency 1873.781 ms 1 501 1.94 MB/sec warmup 9 sec latency 2873.915 ms 1 501 1.75 MB/sec warmup 10 sec latency 3875.445 ms 1 501 1.59 MB/sec warmup 11 sec latency 4875.722 ms 1 501 1.46 MB/sec warmup 12 sec latency 5875.862 ms 1 501 1.34 MB/sec warmup 13 sec latency 6876.084 ms 1 501 1.25 MB/sec warmup 14 sec latency 7878.141 ms 1 501 1.16 MB/sec warmup 15 sec latency 8878.275 ms Failover mds2 to oleg352-server mount facets: mds2 1 501 1.09 MB/sec warmup 16 sec latency 9878.728 ms 1 501 1.03 MB/sec warmup 17 sec latency 10878.933 ms 1 501 0.97 MB/sec warmup 18 sec latency 11879.083 ms 1 501 0.92 MB/sec warmup 19 sec latency 12879.257 ms Start mds2: mount -t lustre -o localrecov /dev/mapper/mds2_flakey /mnt/lustre-mds2 1 501 0.00 MB/sec execute 1 sec latency 14880.348 ms 1 501 0.00 MB/sec execute 2 sec latency 15880.518 ms oleg352-server: oleg352-server.virtnet: executing set_default_debug -1 all 1 501 0.00 MB/sec execute 3 sec latency 16880.697 ms pdsh@oleg352-client: oleg352-server: ssh exited with exit code 1 1 501 0.00 MB/sec execute 4 sec latency 17881.072 ms Started lustre-MDT0001 11:18:55 (1788362335) targets are mounted 11:18:55 (1788362335) facet_failover done 1 501 0.00 MB/sec execute 5 sec latency 18881.291 ms 1 501 0.00 MB/sec execute 6 sec latency 19881.778 ms 1 501 0.00 MB/sec execute 7 sec latency 20881.914 ms 1 522 0.07 MB/sec execute 8 sec latency 21569.749 ms 1 668 0.41 MB/sec execute 9 sec latency 68.014 ms oleg352-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0001-mdc-*.mds_server_uuid 1475 0 1 745 0.39 MB/sec execute 10 sec latency 45.954 ms mdc.lustre-MDT0001-mdc-*.mds_server_uuid in FULL state after 0 sec 1 848 0.37 MB/sec execute 11 sec latency 46.377 ms 1 884 0.35 MB/sec execute 12 sec latency 312.987 ms 1 930 0.33 MB/sec execute 13 sec latency 593.127 ms 1 1051 0.39 MB/sec execute 14 sec latency 45.502 ms 1 1147 0.37 MB/sec execute 15 sec latency 48.607 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 3576 1267728 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 3304 1268000 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 11172 3593924 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 58800 3546012 2% /mnt/lustre[OST:1] filesystem_summary: 7666232 69972 7139936 1% /mnt/lustre 1 1221 0.35 MB/sec execute 16 sec latency 58.384 ms 1 1389 0.50 MB/sec execute 17 sec latency 51.814 ms 1 1467 0.48 MB/sec execute 18 sec latency 135.438 ms 1 1505 0.45 MB/sec execute 19 sec latency 513.633 ms 1 1643 0.44 MB/sec execute 20 sec latency 42.637 ms 1 1750 0.42 MB/sec execute 21 sec latency 57.225 ms test_26 fail mds1 5 times 1 1849 0.40 MB/sec execute 22 sec latency 55.838 ms Failing mds1 on oleg352-server Stopping /mnt/lustre-mds1 (opts:) on oleg352-server 1 1978 0.39 MB/sec execute 23 sec latency 53.341 ms 1 1986 0.37 MB/sec execute 24 sec latency 891.747 ms 11:19:15 (1788362355) shut down facet: mds1 facet_host: oleg352-server facet_failover_host: oleg352-server 1 1986 0.36 MB/sec execute 25 sec latency 1892.231 ms 1 1986 0.35 MB/sec execute 26 sec latency 2892.443 ms 1 1986 0.33 MB/sec execute 27 sec latency 3892.676 ms 1 1986 0.32 MB/sec execute 28 sec latency 4892.932 ms 1 1986 0.31 MB/sec execute 29 sec latency 5893.132 ms 1 1986 0.30 MB/sec execute 30 sec latency 6893.361 ms 1 1986 0.29 MB/sec execute 31 sec latency 7893.581 ms 1 1986 0.28 MB/sec execute 32 sec latency 8893.849 ms 1 1986 0.27 MB/sec execute 33 sec latency 9894.270 ms 1 1986 0.26 MB/sec execute 34 sec latency 10894.459 ms Failover mds1 to oleg352-server mount facets: mds1 1 1986 0.26 MB/sec execute 35 sec latency 11894.669 ms 1 1986 0.25 MB/sec execute 36 sec latency 12894.838 ms 1 1986 0.24 MB/sec execute 37 sec latency 13895.128 ms 1 1986 0.24 MB/sec execute 38 sec latency 14895.333 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 1986 0.23 MB/sec execute 39 sec latency 15895.504 ms 1 1986 0.22 MB/sec execute 40 sec latency 16895.630 ms 1 1986 0.22 MB/sec execute 41 sec latency 17896.066 ms oleg352-server: oleg352-server.virtnet: executing set_default_debug -1 all pdsh@oleg352-client: oleg352-server: ssh exited with exit code 1 1 1986 0.21 MB/sec execute 42 sec latency 18896.298 ms Started lustre-MDT0000 11:19:33 (1788362373) targets are mounted 11:19:33 (1788362373) facet_failover done 1 1986 0.21 MB/sec execute 43 sec latency 19896.485 ms 1 1986 0.20 MB/sec execute 44 sec latency 20897.372 ms 1 1986 0.20 MB/sec execute 45 sec latency 21897.519 ms 1 1991 0.20 MB/sec execute 46 sec latency 22841.900 ms 1 2088 0.20 MB/sec execute 47 sec latency 47.874 ms oleg352-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 2182 0.19 MB/sec execute 48 sec latency 52.394 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 2334 0.21 MB/sec execute 49 sec latency 44.687 ms 1 2412 0.21 MB/sec execute 50 sec latency 58.277 ms 1 2490 0.22 MB/sec execute 51 sec latency 65.704 ms 1 2716 0.28 MB/sec execute 52 sec latency 38.969 ms 1 2909 0.29 MB/sec execute 53 sec latency 73.713 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 3836 1267468 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 3580 1267724 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 12916 3592812 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 60940 3545316 2% /mnt/lustre[OST:1] filesystem_summary: 7666232 73856 7138128 2% /mnt/lustre 1 3012 0.30 MB/sec execute 54 sec latency 60.902 ms 1 3278 0.32 MB/sec execute 55 sec latency 57.143 ms 1 3505 0.37 MB/sec execute 56 sec latency 32.161 ms 1 3622 0.37 MB/sec execute 57 sec latency 42.883 ms 1 3715 0.37 MB/sec execute 58 sec latency 72.026 ms test_26 fail mds2 6 times 1 3820 0.38 MB/sec execute 59 sec latency 48.782 ms Failing mds2 on oleg352-server 1 3910 0.38 MB/sec execute 60 sec latency 43.561 ms Stopping /mnt/lustre-mds2 (opts:) on oleg352-server 1 3955 0.37 MB/sec execute 61 sec latency 383.690 ms 11:19:52 (1788362392) shut down facet: mds2 facet_host: oleg352-server facet_failover_host: oleg352-server 1 3955 0.36 MB/sec execute 62 sec latency 1383.824 ms 1 3955 0.36 MB/sec execute 63 sec latency 2384.555 ms 1 3955 0.35 MB/sec execute 64 sec latency 3384.803 ms 1 3955 0.35 MB/sec execute 65 sec latency 4385.015 ms 1 3955 0.34 MB/sec execute 66 sec latency 5385.193 ms 1 3955 0.34 MB/sec execute 67 sec latency 6385.381 ms 1 3955 0.33 MB/sec execute 68 sec latency 7385.827 ms 1 3955 0.33 MB/sec execute 69 sec latency 8386.029 ms 1 3955 0.32 MB/sec execute 70 sec latency 9386.222 ms 1 3955 0.32 MB/sec execute 71 sec latency 10386.398 ms 1 3955 0.31 MB/sec execute 72 sec latency 11386.580 ms Failover mds2 to oleg352-server mount facets: mds2 1 3955 0.31 MB/sec execute 73 sec latency 12386.893 ms 1 3955 0.31 MB/sec execute 74 sec latency 13388.413 ms 1 3955 0.30 MB/sec execute 75 sec latency 14388.580 ms 1 3955 0.30 MB/sec execute 76 sec latency 15389.182 ms Start mds2: mount -t lustre -o localrecov /dev/mapper/mds2_flakey /mnt/lustre-mds2 1 3955 0.29 MB/sec execute 77 sec latency 16390.016 ms 1 3955 0.29 MB/sec execute 78 sec latency 17390.200 ms oleg352-server: oleg352-server.virtnet: executing set_default_debug -1 all 1 3955 0.29 MB/sec execute 79 sec latency 18390.506 ms pdsh@oleg352-client: oleg352-server: ssh exited with exit code 1 Started lustre-MDT0001 11:20:10 (1788362410) targets are mounted 11:20:10 (1788362410) facet_failover done 1 3955 0.28 MB/sec execute 80 sec latency 19390.836 ms 1 3955 0.28 MB/sec execute 81 sec latency 20391.126 ms 1 3955 0.28 MB/sec execute 82 sec latency 21391.338 ms 1 3955 0.27 MB/sec execute 83 sec latency 22391.510 ms 1 4014 0.27 MB/sec execute 84 sec latency 22752.122 ms 1 4107 0.27 MB/sec execute 85 sec latency 43.845 ms oleg352-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0001-mdc-*.mds_server_uuid 1475 0 1 4226 0.26 MB/sec execute 86 sec latency 39.179 ms mdc.lustre-MDT0001-mdc-*.mds_server_uuid in FULL state after 0 sec 1 4309 0.26 MB/sec execute 87 sec latency 63.268 ms 1 4418 0.26 MB/sec execute 88 sec latency 61.628 ms 1 4483 0.26 MB/sec execute 89 sec latency 96.207 ms 1 4554 0.26 MB/sec execute 90 sec latency 69.415 ms 1 4691 0.27 MB/sec execute 91 sec latency 55.092 ms 1 4790 0.27 MB/sec execute 92 sec latency 61.370 ms 1 4960 0.30 MB/sec execute 93 sec latency 48.098 ms 1 5031 0.29 MB/sec execute 94 sec latency 146.454 ms 1 5131 0.29 MB/sec execute 95 sec latency 83.178 ms 1 5224 0.29 MB/sec execute 96 sec latency 85.382 ms 1 5305 0.29 MB/sec execute 97 sec latency 53.675 ms 1 5395 0.29 MB/sec execute 98 sec latency 48.615 ms 1 5530 0.28 MB/sec execute 99 sec latency 72.534 ms 1 cleanup 100 sec 1 cleanup 101 sec 0 cleanup 101 sec Operation Count AvgLat MaxLat ---------------------------------------- NTCreateX 900 99.461 22841.866 Close 677 5.303 34.004 Rename 37 41.675 69.381 Unlink 151 12.469 22.050 Qpathinfo 823 7.324 73.691 Qfileinfo 159 1.226 5.654 Qfsinfo 135 0.984 7.841 Sfileinfo 84 28.053 94.223 Find 299 5.659 33.401 WriteX 515 5.950 72.011 ReadX 1286 0.329 33.829 LockX 2 4.021 4.569 UnlockX 2 5.914 7.945 Flush 73 35.714 513.610 Throughput 0.283745 MB/sec 1 clients 1 procs max_latency=22841.900 ms stopping dbench on /mnt/lustre at Wed Sep 2 11:20:32 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 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 Wed Sep 2 11:20:35 EDT 2026 waiting for dbench pid 72036 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 91 4.19 MB/sec warmup 1 sec latency 51.681 ms 1 184 3.69 MB/sec warmup 2 sec latency 77.156 ms 1 277 3.46 MB/sec warmup 3 sec latency 173.657 ms 1 361 3.21 MB/sec warmup 4 sec latency 54.140 ms 1 466 3.26 MB/sec warmup 5 sec latency 47.669 ms 1 543 3.18 MB/sec warmup 6 sec latency 157.183 ms 1 699 3.03 MB/sec warmup 7 sec latency 39.353 ms 1 799 2.68 MB/sec warmup 8 sec latency 55.807 ms dbench killed by signal 15 stopping dbench on /mnt/lustre at Wed Sep 2 11:20:43 EDT 2026 with return code 0 72036 pts/0 S+ 0:00 dbench -c client.txt 1 -D /mnt/lustre2/d26.replay-dual/run_dbench -t 100 killed dbench main pid 72036 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished