== replay-dual test 26: dbench and tar with mds failover ========================================================== 20:51:10 (1746147070) Starting client oleg314-client.virtnet: -o user_xattr,flock 192.168.203.114@tcp:/lustre /mnt/lustre Started clients oleg314-client.virtnet: 192.168.203.114@tcp:/lustre on /mnt/lustre type lustre (rw,checksum,noencrypt,flock,lazystatfs,lruresize,nolock,statfs_project,nouser_fid2path,user_xattr,verbose) Started tar loop with pid 4393 Started dbench loop with 4394 striped dir -i0 -c2 -H all_char /mnt/lustre/d26.replay-dual/run_tar 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 '/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 May 1 20:51:12 EDT 2025 waiting for dbench pid 4436 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 2160 1285528 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 1924 1285764 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 1544 3605476 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 1536 3580652 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 3080 7186128 1% /mnt/lustre 1 113 5.24 MB/sec warmup 1 sec latency 68.375 ms 1 190 3.78 MB/sec warmup 2 sec latency 58.148 ms 1 289 3.56 MB/sec warmup 3 sec latency 55.905 ms 1 373 3.32 MB/sec warmup 4 sec latency 66.140 ms 1 474 3.31 MB/sec warmup 5 sec latency 53.076 ms test_26 fail mds1 1 times 1 603 3.49 MB/sec warmup 6 sec latency 56.203 ms Failing mds1 on oleg314-server Stopping /mnt/lustre-mds1 (opts:) on oleg314-server 1 699 3.02 MB/sec warmup 7 sec latency 85.692 ms 1 720 2.66 MB/sec warmup 8 sec latency 753.766 ms 20:51:21 (1746147081) shut down facet: mds1 facet_host: oleg314-server facet_failover_host: oleg314-server 1 720 2.36 MB/sec warmup 9 sec latency 1754.746 ms 1 720 2.13 MB/sec warmup 10 sec latency 2754.975 ms 1 720 1.93 MB/sec warmup 11 sec latency 3755.194 ms 1 720 1.77 MB/sec warmup 12 sec latency 4755.397 ms 1 720 1.64 MB/sec warmup 13 sec latency 5755.607 ms 1 720 1.52 MB/sec warmup 14 sec latency 6759.223 ms 1 720 1.42 MB/sec warmup 15 sec latency 7759.596 ms 1 720 1.33 MB/sec warmup 16 sec latency 8760.686 ms 1 720 1.25 MB/sec warmup 17 sec latency 9760.872 ms 1 720 1.18 MB/sec warmup 18 sec latency 10763.451 ms Failover mds1 to oleg314-server mount facets: mds1 1 720 1.12 MB/sec warmup 19 sec latency 11763.613 ms 1 720 0.00 MB/sec execute 1 sec latency 13764.375 ms 1 720 0.00 MB/sec execute 2 sec latency 14764.516 ms Starting mds1: -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 720 0.00 MB/sec execute 3 sec latency 15764.852 ms 1 720 0.00 MB/sec execute 4 sec latency 16766.032 ms oleg314-server: oleg314-server.virtnet: executing set_default_debug -1 all pdsh@oleg314-client: oleg314-server: ssh exited with exit code 1 Started lustre-MDT0000 20:51:37 (1746147097) targets are mounted 20:51:37 (1746147097) facet_failover done 1 720 0.00 MB/sec execute 5 sec latency 17767.340 ms 1 720 0.00 MB/sec execute 6 sec latency 18768.863 ms 1 720 0.00 MB/sec execute 7 sec latency 19769.026 ms 1 720 0.00 MB/sec execute 8 sec latency 20769.261 ms 1 744 0.00 MB/sec execute 9 sec latency 21340.726 ms oleg314-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1 856 0.03 MB/sec execute 10 sec latency 42.676 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 918 0.04 MB/sec execute 11 sec latency 69.889 ms 1 994 0.05 MB/sec execute 12 sec latency 49.744 ms 1 1128 0.13 MB/sec execute 13 sec latency 44.390 ms 1 1229 0.13 MB/sec execute 14 sec latency 38.648 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2604 1285084 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 2328 1285360 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 5616 3591448 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 31040 3568884 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 36656 7160332 1% /mnt/lustre 1 1389 0.31 MB/sec execute 15 sec latency 62.143 ms 1 1465 0.30 MB/sec execute 16 sec latency 49.114 ms 1 1552 0.28 MB/sec execute 17 sec latency 55.563 ms 1 1609 0.27 MB/sec execute 18 sec latency 56.597 ms 1 1687 0.26 MB/sec execute 19 sec latency 67.847 ms 1 1821 0.25 MB/sec execute 20 sec latency 49.441 ms test_26 fail mds2 2 times 1 1924 0.25 MB/sec execute 21 sec latency 52.349 ms Failing mds2 on oleg314-server Stopping /mnt/lustre-mds2 (opts:) on oleg314-server 1 2014 0.24 MB/sec execute 22 sec latency 60.037 ms 1 2043 0.23 MB/sec execute 23 sec latency 591.700 ms 1 2043 0.22 MB/sec execute 24 sec latency 1592.579 ms 1 2043 0.21 MB/sec execute 25 sec latency 2593.283 ms 1 2043 0.20 MB/sec execute 26 sec latency 3595.593 ms 1 2043 0.20 MB/sec execute 27 sec latency 4595.744 ms 1 2043 0.19 MB/sec execute 28 sec latency 5596.117 ms 1 2043 0.18 MB/sec execute 29 sec latency 6596.752 ms 20:52:01 (1746147121) shut down facet: mds2 facet_host: oleg314-server facet_failover_host: oleg314-server 1 2043 0.18 MB/sec execute 30 sec latency 7598.316 ms 1 2043 0.17 MB/sec execute 31 sec latency 8603.586 ms 1 2043 0.17 MB/sec execute 32 sec latency 9603.757 ms 1 2043 0.16 MB/sec execute 33 sec latency 10604.547 ms 1 2043 0.16 MB/sec execute 34 sec latency 11604.812 ms 1 2043 0.15 MB/sec execute 35 sec latency 12604.973 ms 1 2043 0.15 MB/sec execute 36 sec latency 13605.871 ms 1 2043 0.14 MB/sec execute 37 sec latency 14606.894 ms 1 2043 0.14 MB/sec execute 38 sec latency 15607.068 ms 1 2043 0.14 MB/sec execute 39 sec latency 16607.506 ms Failover mds2 to oleg314-server mount facets: mds2 1 2043 0.13 MB/sec execute 40 sec latency 17609.631 ms 1 2043 0.13 MB/sec execute 41 sec latency 18610.000 ms 1 2043 0.13 MB/sec execute 42 sec latency 19610.373 ms Starting mds2: -o localrecov /dev/mapper/mds2_flakey /mnt/lustre-mds2 1 2043 0.12 MB/sec execute 43 sec latency 20610.597 ms 1 2043 0.12 MB/sec execute 44 sec latency 21611.093 ms oleg314-server: oleg314-server.virtnet: executing set_default_debug -1 all pdsh@oleg314-client: oleg314-server: ssh exited with exit code 1 Started lustre-MDT0001 20:52:17 (1746147137) targets are mounted 20:52:17 (1746147137) facet_failover done 1 2043 0.12 MB/sec execute 45 sec latency 22611.312 ms 1 2043 0.12 MB/sec execute 46 sec latency 23612.864 ms 1 2043 0.11 MB/sec execute 47 sec latency 24613.469 ms 1 2043 0.11 MB/sec execute 48 sec latency 25613.674 ms 1 2069 0.11 MB/sec execute 49 sec latency 26344.842 ms oleg314-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0001-mdc-*.mds_server_uuid 1 2175 0.11 MB/sec execute 50 sec latency 47.963 ms mdc.lustre-MDT0001-mdc-*.mds_server_uuid in FULL state after 0 sec 1 2290 0.13 MB/sec execute 51 sec latency 53.234 ms 1 2389 0.13 MB/sec execute 52 sec latency 48.518 ms 1 2478 0.14 MB/sec execute 53 sec latency 45.303 ms 1 2609 0.14 MB/sec execute 54 sec latency 45.187 ms 1 2915 0.22 MB/sec execute 55 sec latency 40.982 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2800 1284888 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 2564 1285124 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 14440 3590912 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 35920 3570308 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 50360 7161220 1% /mnt/lustre 1 3012 0.22 MB/sec execute 56 sec latency 61.602 ms 1 3275 0.25 MB/sec execute 57 sec latency 67.193 ms 1 3410 0.25 MB/sec execute 58 sec latency 55.370 ms 1 3587 0.29 MB/sec execute 59 sec latency 46.461 ms 1 3690 0.29 MB/sec execute 60 sec latency 65.508 ms test_26 fail mds1 3 times 1 3789 0.30 MB/sec execute 61 sec latency 71.818 ms Failing mds1 on oleg314-server 1 3844 0.30 MB/sec execute 62 sec latency 75.682 ms Stopping /mnt/lustre-mds1 (opts:) on oleg314-server 1 3902 0.30 MB/sec execute 63 sec latency 67.993 ms 1 3954 0.29 MB/sec execute 64 sec latency 124.615 ms 20:52:37 (1746147157) shut down facet: mds1 facet_host: oleg314-server facet_failover_host: oleg314-server 1 4006 0.29 MB/sec execute 65 sec latency 66.286 ms 1 4083 0.28 MB/sec execute 66 sec latency 49.988 ms 1 4083 0.28 MB/sec execute 67 sec latency 1050.350 ms 1 4083 0.28 MB/sec execute 68 sec latency 2052.042 ms 1 4083 0.27 MB/sec execute 69 sec latency 3052.335 ms 1 4083 0.27 MB/sec execute 70 sec latency 4052.939 ms 1 4083 0.26 MB/sec execute 71 sec latency 5053.165 ms 1 4083 0.26 MB/sec execute 72 sec latency 6053.834 ms 1 4083 0.26 MB/sec execute 73 sec latency 7054.279 ms 1 4083 0.25 MB/sec execute 74 sec latency 8054.627 ms Failover mds1 to oleg314-server mount facets: mds1 1 4083 0.25 MB/sec execute 75 sec latency 9055.224 ms 1 4083 0.25 MB/sec execute 76 sec latency 10055.399 ms 1 4083 0.24 MB/sec execute 77 sec latency 11055.628 ms 1 4083 0.24 MB/sec execute 78 sec latency 12056.574 ms 1 4083 0.24 MB/sec execute 79 sec latency 13058.752 ms Starting mds1: -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 4083 0.23 MB/sec execute 80 sec latency 14061.808 ms 1 4083 0.23 MB/sec execute 81 sec latency 15063.430 ms 1 4083 0.23 MB/sec execute 82 sec latency 16067.994 ms oleg314-server: oleg314-server.virtnet: executing set_default_debug -1 all pdsh@oleg314-client: oleg314-server: ssh exited with exit code 1 1 4083 0.23 MB/sec execute 83 sec latency 17069.556 ms Started lustre-MDT0000 20:52:56 (1746147176) targets are mounted 20:52:56 (1746147176) facet_failover done 1 4083 0.22 MB/sec execute 84 sec latency 18069.681 ms 1 4083 0.22 MB/sec execute 85 sec latency 19069.957 ms 1 4135 0.22 MB/sec execute 86 sec latency 19594.450 ms oleg314-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1 4248 0.22 MB/sec execute 87 sec latency 52.430 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 4330 0.22 MB/sec execute 88 sec latency 50.050 ms 1 4415 0.22 MB/sec execute 89 sec latency 62.912 ms 1 4482 0.22 MB/sec execute 90 sec latency 56.153 ms 1 4559 0.22 MB/sec execute 91 sec latency 85.875 ms 1 4695 0.23 MB/sec execute 92 sec latency 45.224 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2660 1285028 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 3172 1284516 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 16468 3583848 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 36256 3561000 2% /mnt/lustre[OST:1] filesystem_summary: 7666232 52724 7144848 1% /mnt/lustre 1 4787 0.22 MB/sec execute 93 sec latency 55.087 ms 1 4950 0.25 MB/sec execute 94 sec latency 50.276 ms 1 5019 0.25 MB/sec execute 95 sec latency 64.059 ms 1 5088 0.25 MB/sec execute 96 sec latency 98.978 ms 1 5162 0.25 MB/sec execute 97 sec latency 54.634 ms test_26 fail mds2 4 times 1 5251 0.25 MB/sec execute 98 sec latency 55.260 ms Failing mds2 on oleg314-server 1 5335 0.24 MB/sec execute 99 sec latency 63.990 ms Stopping /mnt/lustre-mds2 (opts:) on oleg314-server 1 cleanup 100 sec 20:53:13 (1746147193) shut down facet: mds2 facet_host: oleg314-server facet_failover_host: oleg314-server 1 cleanup 101 sec 1 cleanup 102 sec 1 cleanup 103 sec 1 cleanup 104 sec 1 cleanup 105 sec 1 cleanup 106 sec 1 cleanup 107 sec 1 cleanup 108 sec 1 cleanup 109 sec 1 cleanup 110 sec Failover mds2 to oleg314-server mount facets: mds2 1 cleanup 111 sec 1 cleanup 112 sec 1 cleanup 113 sec 1 cleanup 114 sec 1 cleanup 115 sec Starting mds2: -o localrecov /dev/mapper/mds2_flakey /mnt/lustre-mds2 1 cleanup 116 sec 1 cleanup 117 sec oleg314-server: oleg314-server.virtnet: executing set_default_debug -1 all 1 cleanup 118 sec pdsh@oleg314-client: oleg314-server: ssh exited with exit code 1 Started lustre-MDT0001 20:53:31 (1746147211) targets are mounted 20:53:31 (1746147211) facet_failover done 1 cleanup 119 sec 1 cleanup 120 sec 1 cleanup 121 sec 1 cleanup 122 sec 1 cleanup 123 sec 1 cleanup 124 sec 1 cleanup 125 sec oleg314-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0001-mdc-*.mds_server_uuid 0 cleanup 126 sec 0 cleanup 126 sec Operation Count AvgLat MaxLat ---------------------------------------- NTCreateX 822 29.053 124.602 Close 619 6.095 20.525 Rename 36 40.106 69.871 Unlink 146 12.113 30.772 Qpathinfo 748 34.078 19594.434 Qfileinfo 130 0.989 9.301 Qfsinfo 126 2.350 15.409 Sfileinfo 80 27.820 72.770 Find 273 101.782 26344.832 WriteX 405 58.355 21340.587 ReadX 1218 0.402 35.130 LockX 2 4.512 6.124 UnlockX 2 4.264 4.544 Flush 64 28.553 73.108 Throughput 0.243321 MB/sec 1 clients 1 procs max_latency=26344.842 ms stopping dbench on /mnt/lustre at Thu May 1 20:53:39 EDT 2025 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 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 Thu May 1 20:53:42 EDT 2025 waiting for dbench pid 8929 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 2672 1285016 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 3392 1284296 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 31688 3547168 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 29676 3566360 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 61364 7113528 1% /mnt/lustre 1 86 3.93 MB/sec warmup 1 sec latency 55.276 ms 1 158 3.27 MB/sec warmup 2 sec latency 88.948 ms 1 237 3.02 MB/sec warmup 3 sec latency 89.556 ms 1 297 2.74 MB/sec warmup 4 sec latency 88.035 ms 1 377 2.67 MB/sec warmup 5 sec latency 89.308 ms 1 474 2.76 MB/sec warmup 6 sec latency 62.243 ms test_26 fail mds1 5 times 1 612 2.99 MB/sec warmup 7 sec latency 54.550 ms Failing mds1 on oleg314-server 1 699 2.65 MB/sec warmup 8 sec latency 63.070 ms Stopping /mnt/lustre-mds1 (opts:) on oleg314-server 1 764 2.37 MB/sec warmup 9 sec latency 219.461 ms 1 764 2.13 MB/sec warmup 10 sec latency 1219.554 ms 1 764 1.94 MB/sec warmup 11 sec latency 2219.675 ms 1 764 1.78 MB/sec warmup 12 sec latency 3220.454 ms 20:53:55 (1746147235) shut down facet: mds1 facet_host: oleg314-server facet_failover_host: oleg314-server 1 764 1.64 MB/sec warmup 13 sec latency 4220.562 ms 1 764 1.52 MB/sec warmup 14 sec latency 5220.974 ms 1 764 1.42 MB/sec warmup 15 sec latency 6221.177 ms 1 764 1.33 MB/sec warmup 16 sec latency 7223.693 ms 1 764 1.26 MB/sec warmup 17 sec latency 8223.810 ms 1 764 1.19 MB/sec warmup 18 sec latency 9224.000 ms 1 764 1.12 MB/sec warmup 19 sec latency 10227.642 ms 1 764 0.00 MB/sec execute 1 sec latency 12230.537 ms 1 764 0.00 MB/sec execute 2 sec latency 13232.328 ms Failover mds1 to oleg314-server mount facets: mds1 1 764 0.00 MB/sec execute 3 sec latency 14232.521 ms 1 764 0.00 MB/sec execute 4 sec latency 15240.590 ms 1 764 0.00 MB/sec execute 5 sec latency 16241.021 ms 1 764 0.00 MB/sec execute 6 sec latency 17242.885 ms 1 764 0.00 MB/sec execute 7 sec latency 18244.114 ms Starting mds1: -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 764 0.00 MB/sec execute 8 sec latency 19244.420 ms 1 764 0.00 MB/sec execute 9 sec latency 20244.805 ms 1 764 0.00 MB/sec execute 10 sec latency 21244.922 ms 1 764 0.00 MB/sec execute 11 sec latency 22245.232 ms 1 764 0.00 MB/sec execute 12 sec latency 23245.558 ms 1 764 0.00 MB/sec execute 13 sec latency 24245.666 ms 1 764 0.00 MB/sec execute 14 sec latency 25245.856 ms 1 764 0.00 MB/sec execute 15 sec latency 26246.005 ms 1 764 0.00 MB/sec execute 16 sec latency 27246.382 ms 1 764 0.00 MB/sec execute 17 sec latency 28247.478 ms 1 764 0.00 MB/sec execute 18 sec latency 29247.630 ms oleg314-server: oleg314-server.virtnet: executing set_default_debug -1 all 1 764 0.00 MB/sec execute 19 sec latency 30247.913 ms pdsh@oleg314-client: oleg314-server: ssh exited with exit code 1 Started lustre-MDT0000 20:54:22 (1746147262) targets are mounted 20:54:22 (1746147262) facet_failover done 1 764 0.00 MB/sec execute 20 sec latency 31248.242 ms 1 764 0.00 MB/sec execute 21 sec latency 32249.818 ms 1 764 0.00 MB/sec execute 22 sec latency 33250.238 ms 1 765 0.00 MB/sec execute 23 sec latency 34205.593 ms oleg314-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1 848 0.01 MB/sec execute 24 sec latency 105.594 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 914 0.02 MB/sec execute 25 sec latency 69.290 ms 1 979 0.02 MB/sec execute 26 sec latency 76.779 ms 1 1082 0.06 MB/sec execute 27 sec latency 51.459 ms 1 1169 0.06 MB/sec execute 28 sec latency 57.625 ms 1 1245 0.06 MB/sec execute 29 sec latency 51.588 ms 1 1396 0.16 MB/sec execute 30 sec latency 78.642 ms tar: Unexpected EOF in archive tar: Unexpected EOF in archive 1 1481 0.15 MB/sec execute 31 sec latency 63.693 ms 1 1559 0.15 MB/sec execute 32 sec latency 69.916 ms 1 1634 0.15 MB/sec execute 33 sec latency 47.036 ms 1 1709 0.14 MB/sec execute 34 sec latency 69.107 ms 1 1808 0.14 MB/sec execute 35 sec latency 105.698 ms 1 1884 0.14 MB/sec execute 36 sec latency 116.435 ms 1 1996 0.14 MB/sec execute 37 sec latency 79.319 ms 1 2058 0.14 MB/sec execute 38 sec latency 58.917 ms tar: Error is not recoverable: exiting now 1 2150 0.14 MB/sec execute 39 sec latency 51.181 ms dbench killed by signal 15 stopping dbench on /mnt/lustre at Thu May 1 20:54:42 EDT 2025 with return code 0 8929 pts/0 S+ 0:00 dbench -c client.txt 1 -D /mnt/lustre2/d26.replay-dual/run_dbench -t 100 killed dbench main pid 8929 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished