== replay-dual test 26: dbench and tar with mds failover ========================================================== 12:40:14 (1761324014) Starting client oleg403-client.virtnet: -o user_xattr,flock oleg403-server@tcp:/lustre /mnt/lustre Started clients oleg403-client.virtnet: 192.168.204.103@tcp:/lustre on /mnt/lustre type lustre (rw,checksum,flock,user_xattr,lruresize,lazystatfs,nouser_fid2path,verbose,encrypt) Started tar loop with pid 46510 Started dbench loop with 46511 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 Fri Oct 24 12:40:16 EDT 2025 waiting for dbench pid 46538 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 1788 1285900 1% /mnt/lustre[MDT:0] lustre-OST0000_UUID 3833116 1268 3605752 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 25828 3556116 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 27096 7161868 1% /mnt/lustre 1 137 6.02 MB/sec warmup 1 sec latency 43.358 ms 1 239 4.57 MB/sec warmup 2 sec latency 43.119 ms 1 356 4.26 MB/sec warmup 3 sec latency 40.644 ms 1 477 4.17 MB/sec warmup 4 sec latency 45.461 ms 1 654 4.21 MB/sec warmup 5 sec latency 35.268 ms test_26 fail mds1 1 times Failing mds1 on oleg403-server 1 772 3.56 MB/sec warmup 6 sec latency 45.073 ms Stopping /mnt/lustre-mds1 (opts:) on oleg403-server 1 863 3.08 MB/sec warmup 7 sec latency 332.322 ms reboot facets: mds1 1 863 2.70 MB/sec warmup 8 sec latency 1332.571 ms 1 863 2.40 MB/sec warmup 9 sec latency 2332.910 ms 1 863 2.16 MB/sec warmup 10 sec latency 3333.120 ms 1 863 1.96 MB/sec warmup 11 sec latency 4333.316 ms 1 863 1.80 MB/sec warmup 12 sec latency 5333.574 ms 1 863 1.66 MB/sec warmup 13 sec latency 6333.781 ms 1 863 1.54 MB/sec warmup 14 sec latency 7333.985 ms 1 863 1.44 MB/sec warmup 15 sec latency 8334.173 ms 1 863 1.35 MB/sec warmup 16 sec latency 9334.442 ms 1 863 1.27 MB/sec warmup 17 sec latency 10334.776 ms Failover mds1 to oleg403-server 1 863 1.20 MB/sec warmup 18 sec latency 11335.009 ms mount facets: mds1 1 863 1.14 MB/sec warmup 19 sec latency 12335.271 ms 1 863 0.00 MB/sec execute 1 sec latency 14335.659 ms Starting mds1: -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 863 0.00 MB/sec execute 2 sec latency 15335.915 ms 1 863 0.00 MB/sec execute 3 sec latency 16336.311 ms 1 863 0.00 MB/sec execute 4 sec latency 17336.559 ms 1 863 0.00 MB/sec execute 5 sec latency 18336.765 ms 1 863 0.00 MB/sec execute 6 sec latency 19337.126 ms 1 863 0.00 MB/sec execute 7 sec latency 20337.419 ms 1 863 0.00 MB/sec execute 8 sec latency 21337.617 ms 1 863 0.00 MB/sec execute 9 sec latency 22337.824 ms 1 863 0.00 MB/sec execute 10 sec latency 23338.034 ms 1 863 0.00 MB/sec execute 11 sec latency 24338.319 ms 1 863 0.00 MB/sec execute 12 sec latency 25338.508 ms 1 863 0.00 MB/sec execute 13 sec latency 26338.661 ms 1 863 0.00 MB/sec execute 14 sec latency 27338.832 ms oleg403-server: oleg403-server.virtnet: executing set_default_debug -1 all 8 pdsh@oleg403-client: oleg403-server: ssh exited with exit code 1 Started lustre-MDT0000 1 863 0.00 MB/sec execute 15 sec latency 28339.035 ms 1 863 0.00 MB/sec execute 16 sec latency 29339.769 ms 1 863 0.00 MB/sec execute 17 sec latency 30339.896 ms 1 863 0.00 MB/sec execute 18 sec latency 31340.066 ms 1 985 0.02 MB/sec execute 19 sec latency 31539.100 ms oleg403-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1 1154 0.07 MB/sec execute 20 sec latency 78.317 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 1410 0.21 MB/sec execute 21 sec latency 26.116 ms 1 1582 0.21 MB/sec execute 22 sec latency 58.231 ms 1 1762 0.20 MB/sec execute 23 sec latency 48.656 ms 1 2026 0.21 MB/sec execute 24 sec latency 18.575 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2076 1285612 1% /mnt/lustre[MDT:0] lustre-OST0000_UUID 3833116 21964 3582620 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 45724 3560668 2% /mnt/lustre[OST:1] filesystem_summary: 7666232 67688 7143288 1% /mnt/lustre 1 2301 0.25 MB/sec execute 25 sec latency 19.047 ms 1 2478 0.27 MB/sec execute 26 sec latency 29.690 ms 1 2770 0.38 MB/sec execute 27 sec latency 42.669 ms 1 3024 0.43 MB/sec execute 28 sec latency 29.933 ms 1 3493 0.58 MB/sec execute 29 sec latency 25.456 ms test_26 fail mds1 2 times Failing mds1 on oleg403-server 1 3683 0.57 MB/sec execute 30 sec latency 20.701 ms Stopping /mnt/lustre-mds1 (opts:) on oleg403-server 1 3785 0.59 MB/sec execute 31 sec latency 414.309 ms reboot facets: mds1 1 3785 0.57 MB/sec execute 32 sec latency 1414.515 ms 1 3785 0.55 MB/sec execute 33 sec latency 2414.777 ms 1 3785 0.53 MB/sec execute 34 sec latency 3415.010 ms 1 3785 0.52 MB/sec execute 35 sec latency 4415.279 ms 1 3785 0.51 MB/sec execute 36 sec latency 5415.482 ms 1 3785 0.49 MB/sec execute 37 sec latency 6415.692 ms 1 3785 0.48 MB/sec execute 38 sec latency 7416.014 ms 1 3785 0.47 MB/sec execute 39 sec latency 8416.283 ms 1 3785 0.45 MB/sec execute 40 sec latency 9416.489 ms 1 3785 0.44 MB/sec execute 41 sec latency 10416.775 ms Failover mds1 to oleg403-server 1 3785 0.43 MB/sec execute 42 sec latency 11416.971 ms mount facets: mds1 1 3785 0.42 MB/sec execute 43 sec latency 12417.161 ms 1 3785 0.41 MB/sec execute 44 sec latency 13417.295 ms 1 3785 0.40 MB/sec execute 45 sec latency 14417.472 ms Starting mds1: -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 3785 0.40 MB/sec execute 46 sec latency 15417.775 ms 1 3785 0.39 MB/sec execute 47 sec latency 16417.962 ms oleg403-server: oleg403-server.virtnet: executing set_default_debug -1 all 8 pdsh@oleg403-client: oleg403-server: ssh exited with exit code 1 Started lustre-MDT0000 1 3785 0.38 MB/sec execute 48 sec latency 17418.192 ms 1 3785 0.37 MB/sec execute 49 sec latency 18418.516 ms 1 3785 0.36 MB/sec execute 50 sec latency 19418.773 ms 1 3785 0.36 MB/sec execute 51 sec latency 20418.967 ms 1 3785 0.35 MB/sec execute 52 sec latency 21419.168 ms 1 3785 0.34 MB/sec execute 53 sec latency 22419.337 ms 1 3785 0.34 MB/sec execute 54 sec latency 23419.525 ms 1 3785 0.33 MB/sec execute 55 sec latency 24419.796 ms 1 3785 0.32 MB/sec execute 56 sec latency 25419.966 ms 1 3785 0.32 MB/sec execute 57 sec latency 26420.139 ms 1 3785 0.31 MB/sec execute 58 sec latency 27420.324 ms 1 3785 0.31 MB/sec execute 59 sec latency 28420.595 ms 1 3785 0.30 MB/sec execute 60 sec latency 29420.754 ms 1 3785 0.30 MB/sec execute 61 sec latency 30420.864 ms 1 3927 0.30 MB/sec execute 62 sec latency 30543.124 ms oleg403-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1 4102 0.29 MB/sec execute 63 sec latency 26.116 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 4282 0.29 MB/sec execute 64 sec latency 49.544 ms 1 4478 0.30 MB/sec execute 65 sec latency 40.251 ms 1 4694 0.31 MB/sec execute 66 sec latency 26.455 ms 1 4969 0.35 MB/sec execute 67 sec latency 23.681 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2684 1285004 1% /mnt/lustre[MDT:0] lustre-OST0000_UUID 3833116 24832 3580552 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 47476 3558744 2% /mnt/lustre[OST:1] filesystem_summary: 7666232 72308 7139296 2% /mnt/lustre 1 5172 0.35 MB/sec execute 68 sec latency 33.797 ms 1 5360 0.35 MB/sec execute 69 sec latency 29.978 ms 1 5549 0.34 MB/sec execute 70 sec latency 154.331 ms 1 5767 0.34 MB/sec execute 71 sec latency 19.869 ms 1 5977 0.36 MB/sec execute 72 sec latency 45.166 ms test_26 fail mds1 3 times Failing mds1 on oleg403-server 1 6147 0.36 MB/sec execute 73 sec latency 82.453 ms Stopping /mnt/lustre-mds1 (opts:) on oleg403-server 1 6325 0.40 MB/sec execute 74 sec latency 569.210 ms reboot facets: mds1 1 6325 0.39 MB/sec execute 75 sec latency 1569.489 ms 1 6325 0.39 MB/sec execute 76 sec latency 2569.800 ms 1 6325 0.38 MB/sec execute 77 sec latency 3570.034 ms 1 6325 0.38 MB/sec execute 78 sec latency 4570.232 ms 1 6325 0.37 MB/sec execute 79 sec latency 5570.456 ms 1 6325 0.37 MB/sec execute 80 sec latency 6570.770 ms 1 6325 0.36 MB/sec execute 81 sec latency 7571.011 ms 1 6325 0.36 MB/sec execute 82 sec latency 8571.243 ms 1 6325 0.36 MB/sec execute 83 sec latency 9571.445 ms 1 6325 0.35 MB/sec execute 84 sec latency 10571.713 ms Failover mds1 to oleg403-server 1 6325 0.35 MB/sec execute 85 sec latency 11571.871 ms mount facets: mds1 1 6325 0.34 MB/sec execute 86 sec latency 12572.070 ms 1 6325 0.34 MB/sec execute 87 sec latency 13572.346 ms 1 6325 0.34 MB/sec execute 88 sec latency 14572.537 ms Starting mds1: -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 6325 0.33 MB/sec execute 89 sec latency 15572.774 ms 1 6325 0.33 MB/sec execute 90 sec latency 16573.001 ms 1 6325 0.32 MB/sec execute 91 sec latency 17573.166 ms oleg403-server: oleg403-server.virtnet: executing set_default_debug -1 all 8 1 6325 0.32 MB/sec execute 92 sec latency 18573.313 ms pdsh@oleg403-client: oleg403-server: ssh exited with exit code 1 Started lustre-MDT0000 1 6325 0.32 MB/sec execute 93 sec latency 19573.478 ms 1 6325 0.31 MB/sec execute 94 sec latency 20573.649 ms 1 6325 0.31 MB/sec execute 95 sec latency 21573.836 ms 1 6325 0.31 MB/sec execute 96 sec latency 22573.996 ms 1 6325 0.30 MB/sec execute 97 sec latency 23574.189 ms 1 6325 0.30 MB/sec execute 98 sec latency 24574.362 ms 1 6325 0.30 MB/sec execute 99 sec latency 25574.560 ms 1 cleanup 100 sec 1 cleanup 101 sec 1 cleanup 102 sec 1 cleanup 103 sec 1 cleanup 104 sec 1 cleanup 105 sec 0 cleanup 106 sec Operation Count AvgLat MaxLat ---------------------------------------- NTCreateX 938 79.005 31539.080 Close 725 45.574 31278.470 Rename 41 19.668 35.747 Unlink 159 6.760 12.982 Qpathinfo 907 3.860 35.577 Qfileinfo 161 0.725 5.085 Qfsinfo 139 0.401 2.914 Sfileinfo 89 10.087 82.435 Find 324 2.173 17.747 WriteX 478 3.771 15.933 ReadX 1438 0.505 78.304 LockX 2 3.232 4.168 UnlockX 2 3.574 3.926 Flush 60 19.199 154.305 Throughput 0.298013 MB/sec 1 clients 1 procs max_latency=31539.100 ms stopping dbench on /mnt/lustre at Fri Oct 24 12:42:22 EDT 2025 with return code 0 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished oleg403-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid looking for dbench program /usr/bin/dbench found dbench client file /usr/share/dbench/client.txt mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec '/usr/share/dbench/client.txt' -> 'client.txt' running 'dbench 1 -D /mnt/lustre2/d26.replay-dual/run_dbench -t 100' on /mnt/lustre at Fri Oct 24 12:42:25 EDT 2025 waiting for dbench pid 49873 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 1 157 6.54 MB/sec warmup 1 sec latency 34.967 ms 1 279 5.22 MB/sec warmup 2 sec latency 104.860 ms 1 413 4.87 MB/sec warmup 3 sec latency 86.082 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2608 1285080 1% /mnt/lustre[MDT:0] lustre-OST0000_UUID 3833116 38404 3547812 2% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 12852 3593936 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 51256 7141748 1% /mnt/lustre 1 541 4.78 MB/sec warmup 4 sec latency 116.261 ms 1 721 4.26 MB/sec warmup 5 sec latency 160.744 ms 1 825 3.58 MB/sec warmup 6 sec latency 422.152 ms 1 990 3.13 MB/sec warmup 7 sec latency 39.138 ms test_26 fail mds1 4 times 1 1224 2.88 MB/sec warmup 8 sec latency 36.606 ms Failing mds1 on oleg403-server Stopping /mnt/lustre-mds1 (opts:) on oleg403-server 1 1486 2.89 MB/sec warmup 9 sec latency 47.793 ms reboot facets: mds1 1 1486 2.60 MB/sec warmup 10 sec latency 1047.967 ms 1 1486 2.37 MB/sec warmup 11 sec latency 2048.154 ms 1 1486 2.17 MB/sec warmup 12 sec latency 3048.366 ms 1 1486 2.00 MB/sec warmup 13 sec latency 4048.544 ms 1 1486 1.86 MB/sec warmup 14 sec latency 5048.739 ms 1 1486 1.74 MB/sec warmup 15 sec latency 6048.892 ms 1 1486 1.63 MB/sec warmup 16 sec latency 7049.094 ms 1 1486 1.53 MB/sec warmup 17 sec latency 8049.306 ms 1 1486 1.45 MB/sec warmup 18 sec latency 9049.520 ms 1 1486 1.37 MB/sec warmup 19 sec latency 10049.763 ms Failover mds1 to oleg403-server mount facets: mds1 1 1486 0.00 MB/sec execute 1 sec latency 12050.086 ms 1 1486 0.00 MB/sec execute 2 sec latency 13050.227 ms 1 1486 0.00 MB/sec execute 3 sec latency 14050.448 ms Starting mds1: -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 1486 0.00 MB/sec execute 4 sec latency 15050.659 ms 1 1486 0.00 MB/sec execute 5 sec latency 16050.893 ms 1 1486 0.00 MB/sec execute 6 sec latency 17051.111 ms oleg403-server: oleg403-server.virtnet: executing set_default_debug -1 all 8 pdsh@oleg403-client: oleg403-server: ssh exited with exit code 1 1 1486 0.00 MB/sec execute 7 sec latency 18051.644 ms Started lustre-MDT0000 1 1486 0.00 MB/sec execute 8 sec latency 19051.888 ms 1 1486 0.00 MB/sec execute 9 sec latency 20052.087 ms 1 1486 0.00 MB/sec execute 10 sec latency 21052.283 ms 1 1486 0.00 MB/sec execute 11 sec latency 22052.472 ms 1 1486 0.00 MB/sec execute 12 sec latency 23052.668 ms 1 1486 0.00 MB/sec execute 13 sec latency 24052.892 ms 1 1486 0.00 MB/sec execute 14 sec latency 25053.098 ms 1 1486 0.00 MB/sec execute 15 sec latency 26053.331 ms 1 1486 0.00 MB/sec execute 16 sec latency 27053.586 ms 1 1486 0.00 MB/sec execute 17 sec latency 28053.870 ms 1 1486 0.00 MB/sec execute 18 sec latency 29054.367 ms 1 1553 0.00 MB/sec execute 19 sec latency 29598.885 ms 1 1691 0.01 MB/sec execute 20 sec latency 79.554 ms oleg403-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1 1902 0.02 MB/sec execute 21 sec latency 51.030 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 2124 0.03 MB/sec execute 22 sec latency 22.996 ms 1 2347 0.08 MB/sec execute 23 sec latency 73.968 ms 1 2478 0.11 MB/sec execute 24 sec latency 100.836 ms 1 2880 0.25 MB/sec execute 25 sec latency 44.692 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 1896 1285792 1% /mnt/lustre[MDT:0] lustre-OST0000_UUID 3833116 37576 3567672 2% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 11580 3593452 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 49156 7161124 1% /mnt/lustre 1 3189 0.32 MB/sec execute 26 sec latency 27.622 ms 1 3504 0.46 MB/sec execute 27 sec latency 31.642 ms 1 3719 0.45 MB/sec execute 28 sec latency 21.671 ms 1 3894 0.48 MB/sec execute 29 sec latency 26.229 ms 1 4002 0.47 MB/sec execute 30 sec latency 87.269 ms test_26 fail mds1 5 times Failing mds1 on oleg403-server 1 4133 0.45 MB/sec execute 31 sec latency 93.862 ms Stopping /mnt/lustre-mds1 (opts:) on oleg403-server 1 4246 0.45 MB/sec execute 32 sec latency 407.795 ms reboot facets: mds1 1 4246 0.43 MB/sec execute 33 sec latency 1408.138 ms 1 4246 0.42 MB/sec execute 34 sec latency 2408.328 ms 1 4246 0.41 MB/sec execute 35 sec latency 3408.603 ms 1 4246 0.40 MB/sec execute 36 sec latency 4408.775 ms 1 4246 0.38 MB/sec execute 37 sec latency 5408.971 ms 1 4246 0.37 MB/sec execute 38 sec latency 6409.142 ms 1 4246 0.37 MB/sec execute 39 sec latency 7409.336 ms 1 4246 0.36 MB/sec execute 40 sec latency 8409.562 ms 1 4246 0.35 MB/sec execute 41 sec latency 9409.746 ms 1 4246 0.34 MB/sec execute 42 sec latency 10409.926 ms Failover mds1 to oleg403-server 1 4246 0.33 MB/sec execute 43 sec latency 11410.126 ms mount facets: mds1 1 4246 0.32 MB/sec execute 44 sec latency 12410.240 ms 1 4246 0.32 MB/sec execute 45 sec latency 13410.445 ms Starting mds1: -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 4246 0.31 MB/sec execute 46 sec latency 14410.629 ms 1 4246 0.30 MB/sec execute 47 sec latency 15410.811 ms 1 4246 0.30 MB/sec execute 48 sec latency 16410.996 ms 1 4246 0.29 MB/sec execute 49 sec latency 17411.148 ms 1 4246 0.28 MB/sec execute 50 sec latency 18411.401 ms 1 4246 0.28 MB/sec execute 51 sec latency 19411.590 ms oleg403-server: oleg403-server.virtnet: executing set_default_debug -1 all 8 pdsh@oleg403-client: oleg403-server: ssh exited with exit code 1 Started lustre-MDT0000 1 4246 0.27 MB/sec execute 52 sec latency 20411.792 ms 1 4246 0.27 MB/sec execute 53 sec latency 21411.941 ms 1 4246 0.26 MB/sec execute 54 sec latency 22412.138 ms 1 4246 0.26 MB/sec execute 55 sec latency 23412.323 ms 1 4246 0.25 MB/sec execute 56 sec latency 24412.535 ms 1 4246 0.25 MB/sec execute 57 sec latency 25412.762 ms 1 4246 0.25 MB/sec execute 58 sec latency 26412.947 ms 1 4246 0.24 MB/sec execute 59 sec latency 27413.132 ms 1 4246 0.24 MB/sec execute 60 sec latency 28413.330 ms 1 4246 0.23 MB/sec execute 61 sec latency 29413.444 ms 1 4289 0.23 MB/sec execute 62 sec latency 30085.627 ms 1 4474 0.23 MB/sec execute 63 sec latency 51.021 ms oleg403-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1 4663 0.25 MB/sec execute 64 sec latency 26.792 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 4812 0.25 MB/sec execute 65 sec latency 99.136 ms 1 5055 0.29 MB/sec execute 66 sec latency 37.895 ms tar: Unexpected EOF in archive tar: Unexpected EOF in archive 1 5249 0.29 MB/sec execute 67 sec latency 27.067 ms 1 5422 0.29 MB/sec execute 68 sec latency 25.606 ms tar: Error is not recoverable: exiting now dbench killed by signal 15 stopping dbench on /mnt/lustre at Fri Oct 24 12:43:54 EDT 2025 with return code 0 49873 pts/0 S+ 0:00 dbench -c client.txt 1 -D /mnt/lustre2/d26.replay-dual/run_dbench -t 100 killed dbench main pid 49873 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished