== replay-dual test 26: dbench and tar with mds failover ========================================================== 17:03:34 (1786568614) Starting client oleg429-client.virtnet: -o user_xattr,flock 192.168.204.129@tcp:/lustre /mnt/lustre Started clients oleg429-client.virtnet: 192.168.204.129@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 45181 Started dbench loop with 45182 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 2210560 2048 2206464 1% /mnt/lustre[MDT:0] lustre-OST0000_UUID 3771392 18432 3736576 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3771392 2048 3762176 1% /mnt/lustre[OST:1] filesystem_summary: 7542784 20480 7498752 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 Wed Aug 12 17:03:40 EDT 2026 waiting for dbench pid 45249 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 1 31 1.04 MB/sec warmup 1 sec latency 57.884 ms 1 71 1.56 MB/sec warmup 2 sec latency 178.935 ms 1 121 1.83 MB/sec warmup 3 sec latency 163.833 ms 1 155 1.63 MB/sec warmup 4 sec latency 153.360 ms 1 192 1.51 MB/sec warmup 5 sec latency 158.101 ms test_26 fail mds1 1 times 1 231 1.48 MB/sec warmup 6 sec latency 120.192 ms Failing mds1 on oleg429-server 1 270 1.45 MB/sec warmup 7 sec latency 129.998 ms 1 297 1.37 MB/sec warmup 8 sec latency 187.978 ms Stopping /mnt/lustre-mds1 (opts:) on oleg429-server 1 331 1.33 MB/sec warmup 9 sec latency 195.760 ms 1 338 1.22 MB/sec warmup 10 sec latency 830.393 ms 1 338 1.11 MB/sec warmup 11 sec latency 1831.188 ms 17:03:52 (1786568632) shut down facet: mds1 facet_host: oleg429-server facet_failover_host: oleg429-server 1 338 1.02 MB/sec warmup 12 sec latency 2831.457 ms 1 338 0.94 MB/sec warmup 13 sec latency 3831.717 ms 1 338 0.87 MB/sec warmup 14 sec latency 4831.911 ms 1 338 0.82 MB/sec warmup 15 sec latency 5832.209 ms 1 338 0.77 MB/sec warmup 16 sec latency 6832.476 ms 1 338 0.72 MB/sec warmup 17 sec latency 7833.890 ms 1 338 0.68 MB/sec warmup 18 sec latency 8834.107 ms 1 338 0.64 MB/sec warmup 19 sec latency 9834.765 ms 1 338 0.00 MB/sec execute 1 sec latency 11835.337 ms 1 338 0.00 MB/sec execute 2 sec latency 12840.862 ms Failover mds1 to oleg429-server mount facets: mds1 1 338 0.00 MB/sec execute 3 sec latency 13841.275 ms 1 338 0.00 MB/sec execute 4 sec latency 14841.735 ms 1 338 0.00 MB/sec execute 5 sec latency 15843.560 ms 1 338 0.00 MB/sec execute 6 sec latency 16843.809 ms 1 338 0.00 MB/sec execute 7 sec latency 17844.126 ms Start mds1: mount -t lustre -o localrecov lustre-mdt1/mdt1 /mnt/lustre-mds1 1 338 0.00 MB/sec execute 8 sec latency 18845.036 ms 1 338 0.00 MB/sec execute 9 sec latency 19845.402 ms 1 338 0.00 MB/sec execute 10 sec latency 20845.864 ms 1 338 0.00 MB/sec execute 11 sec latency 21847.772 ms 1 338 0.00 MB/sec execute 12 sec latency 22848.146 ms 1 338 0.00 MB/sec execute 13 sec latency 23848.777 ms 1 338 0.00 MB/sec execute 14 sec latency 24849.083 ms 1 338 0.00 MB/sec execute 15 sec latency 25850.443 ms 1 338 0.00 MB/sec execute 16 sec latency 26851.206 ms 1 338 0.00 MB/sec execute 17 sec latency 27852.345 ms 1 338 0.00 MB/sec execute 18 sec latency 28852.763 ms 1 338 0.00 MB/sec execute 19 sec latency 29853.058 ms 1 338 0.00 MB/sec execute 20 sec latency 30853.327 ms 1 338 0.00 MB/sec execute 21 sec latency 31853.751 ms 1 338 0.00 MB/sec execute 22 sec latency 32854.312 ms 1 338 0.00 MB/sec execute 23 sec latency 33854.597 ms oleg429-server: oleg429-server.virtnet: executing set_default_debug -1 all 1 338 0.00 MB/sec execute 24 sec latency 34855.542 ms pdsh@oleg429-client: oleg429-server: ssh exited with exit code 1 1 338 0.00 MB/sec execute 25 sec latency 35856.506 ms Started lustre-MDT0000 17:04:26 (1786568666) targets are mounted 17:04:26 (1786568666) facet_failover done 1 338 0.00 MB/sec execute 26 sec latency 36861.923 ms 1 338 0.00 MB/sec execute 27 sec latency 37862.104 ms 1 338 0.00 MB/sec execute 28 sec latency 38862.770 ms 1 338 0.00 MB/sec execute 29 sec latency 39866.493 ms 1 338 0.00 MB/sec execute 30 sec latency 40866.831 ms 1 338 0.00 MB/sec execute 31 sec latency 41871.388 ms 1 357 0.02 MB/sec execute 32 sec latency 42046.979 ms 1 397 0.06 MB/sec execute 33 sec latency 122.530 ms 1 429 0.08 MB/sec execute 34 sec latency 174.980 ms 1 469 0.12 MB/sec execute 35 sec latency 125.250 ms 1 503 0.14 MB/sec execute 36 sec latency 163.834 ms oleg429-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 539 0.18 MB/sec execute 37 sec latency 177.227 ms 1 607 0.23 MB/sec execute 38 sec latency 192.957 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 661 0.23 MB/sec execute 39 sec latency 104.677 ms 1 678 0.22 MB/sec execute 40 sec latency 304.788 ms 1 711 0.22 MB/sec execute 41 sec latency 149.215 ms 1 736 0.22 MB/sec execute 42 sec latency 182.650 ms 1 776 0.21 MB/sec execute 43 sec latency 118.061 ms 1 799 0.21 MB/sec execute 44 sec latency 235.114 ms 1 827 0.20 MB/sec execute 45 sec latency 129.297 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 2210560 2304 2206208 1% /mnt/lustre[MDT:0] lustre-OST0000_UUID 3771392 40960 3681280 2% /mnt/lustre[OST:0] lustre-OST0001_UUID 3771392 7168 3741696 1% /mnt/lustre[OST:1] filesystem_summary: 7542784 48128 7422976 1% /mnt/lustre 1 874 0.20 MB/sec execute 46 sec latency 175.449 ms 1 902 0.20 MB/sec execute 47 sec latency 134.557 ms 1 916 0.20 MB/sec execute 48 sec latency 326.543 ms 1 952 0.19 MB/sec execute 49 sec latency 128.932 ms 1 977 0.19 MB/sec execute 50 sec latency 159.214 ms 1 1037 0.21 MB/sec execute 51 sec latency 205.451 ms test_26 fail mds1 2 times 1 1086 0.20 MB/sec execute 52 sec latency 72.908 ms 1 1145 0.20 MB/sec execute 53 sec latency 70.905 ms Failing mds1 on oleg429-server 1 1193 0.20 MB/sec execute 54 sec latency 76.142 ms Stopping /mnt/lustre-mds1 (opts:) on oleg429-server 1 1242 0.20 MB/sec execute 55 sec latency 81.807 ms 1 1242 0.19 MB/sec execute 56 sec latency 1061.908 ms 17:04:57 (1786568697) shut down 1 1242 0.19 MB/sec execute 57 sec latency 2062.119 ms facet: mds1 facet_host: oleg429-server facet_failover_host: oleg429-server 1 1242 0.19 MB/sec execute 58 sec latency 3062.290 ms 1 1242 0.18 MB/sec execute 59 sec latency 4063.123 ms 1 1242 0.18 MB/sec execute 60 sec latency 5063.312 ms 1 1242 0.18 MB/sec execute 61 sec latency 6064.909 ms 1 1242 0.17 MB/sec execute 62 sec latency 7065.138 ms 1 1242 0.17 MB/sec execute 63 sec latency 8065.415 ms 1 1242 0.17 MB/sec execute 64 sec latency 9065.661 ms 1 1242 0.17 MB/sec execute 65 sec latency 10066.214 ms 1 1242 0.16 MB/sec execute 66 sec latency 11068.804 ms 1 1242 0.16 MB/sec execute 67 sec latency 12070.313 ms Failover mds1 to oleg429-server mount facets: mds1 1 1242 0.16 MB/sec execute 68 sec latency 13070.512 ms 1 1242 0.16 MB/sec execute 69 sec latency 14070.967 ms 1 1242 0.15 MB/sec execute 70 sec latency 15072.383 ms 1 1242 0.15 MB/sec execute 71 sec latency 16073.571 ms Start mds1: mount -t lustre -o localrecov lustre-mdt1/mdt1 /mnt/lustre-mds1 1 1242 0.15 MB/sec execute 72 sec latency 17073.989 ms 1 1242 0.15 MB/sec execute 73 sec latency 18074.201 ms 1 1242 0.15 MB/sec execute 74 sec latency 19074.433 ms 1 1242 0.14 MB/sec execute 75 sec latency 20075.692 ms 1 1242 0.14 MB/sec execute 76 sec latency 21076.440 ms 1 1242 0.14 MB/sec execute 77 sec latency 22076.629 ms 1 1242 0.14 MB/sec execute 78 sec latency 23076.884 ms oleg429-server: oleg429-server.virtnet: executing set_default_debug -1 all 1 1252 0.14 MB/sec execute 79 sec latency 23611.254 ms pdsh@oleg429-client: oleg429-server: ssh exited with exit code 1 1 1318 0.15 MB/sec execute 80 sec latency 113.552 ms Started lustre-MDT0000 17:05:21 (1786568721) targets are mounted 17:05:21 (1786568721) facet_failover done 1 1405 0.17 MB/sec execute 81 sec latency 117.548 ms 1 1434 0.17 MB/sec execute 82 sec latency 117.778 ms 1 1474 0.17 MB/sec execute 83 sec latency 116.653 ms 1 1504 0.16 MB/sec execute 84 sec latency 299.577 ms 1 1558 0.16 MB/sec execute 85 sec latency 89.289 ms 1 1604 0.16 MB/sec execute 86 sec latency 79.529 ms 1 1645 0.16 MB/sec execute 87 sec latency 175.149 ms oleg429-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 1677 0.16 MB/sec execute 88 sec latency 117.653 ms 1 1710 0.16 MB/sec execute 89 sec latency 156.766 ms 1 1762 0.16 MB/sec execute 90 sec latency 124.255 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 1808 0.15 MB/sec execute 91 sec latency 110.651 ms 1 1849 0.15 MB/sec execute 92 sec latency 111.231 ms 1 1888 0.15 MB/sec execute 93 sec latency 138.501 ms 1 1954 0.15 MB/sec execute 94 sec latency 193.481 ms 1 1996 0.15 MB/sec execute 95 sec latency 115.898 ms 1 2024 0.15 MB/sec execute 96 sec latency 96.596 ms 1 2088 0.15 MB/sec execute 97 sec latency 127.590 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 2210560 2688 2205824 1% /mnt/lustre[MDT:0] lustre-OST0000_UUID 3771392 63488 3700736 2% /mnt/lustre[OST:0] lustre-OST0001_UUID 3771392 10240 3749888 1% /mnt/lustre[OST:1] filesystem_summary: 7542784 73728 7450624 1% /mnt/lustre 1 2148 0.15 MB/sec execute 98 sec latency 86.181 ms 1 2170 0.15 MB/sec execute 99 sec latency 108.103 ms 1 cleanup 100 sec 1 cleanup 101 sec 1 cleanup 102 sec 0 cleanup 103 sec 0 cleanup 103 sec Operation Count AvgLat MaxLat ---------------------------------------- NTCreateX 338 136.302 23611.234 Close 280 163.690 42046.948 Rename 11 115.487 339.628 Unlink 28 32.759 67.803 Qpathinfo 275 16.698 100.916 Qfileinfo 87 2.923 28.203 Qfsinfo 33 3.639 26.570 Sfileinfo 34 53.516 102.398 Find 91 7.761 107.906 WriteX 320 14.323 67.525 ReadX 346 1.838 70.893 Flush 30 135.877 326.526 Throughput 0.145978 MB/sec 1 clients 1 procs max_latency=42046.979 ms stopping dbench on /mnt/lustre at Wed Aug 12 17:05:44 EDT 2026 with return code 0 test_26 fail mds1 3 times clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished Failing mds1 on oleg429-server looking for dbench program /usr/bin/dbench found dbench client file /usr/share/dbench/client.txt Stopping /mnt/lustre-mds1 (opts:) on oleg429-server 17:05:51 (1786568751) shut down facet: mds1 facet_host: oleg429-server facet_failover_host: oleg429-server Failover mds1 to oleg429-server mount facets: mds1 Start mds1: mount -t lustre -o localrecov lustre-mdt1/mdt1 /mnt/lustre-mds1 oleg429-server: oleg429-server.virtnet: executing set_default_debug -1 all pdsh@oleg429-client: oleg429-server: ssh exited with exit code 1 Started lustre-MDT0000 17:06:22 (1786568782) targets are mounted 17:06:22 (1786568782) facet_failover done '/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 Aug 12 17:06:29 EDT 2026 waiting for dbench pid 47767 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 55 2.16 MB/sec warmup 1 sec latency 110.489 ms 1 119 2.72 MB/sec warmup 2 sec latency 152.918 ms 1 155 2.18 MB/sec warmup 3 sec latency 146.136 ms oleg429-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 197 1.96 MB/sec warmup 4 sec latency 125.278 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 239 1.83 MB/sec warmup 5 sec latency 111.098 ms 1 280 1.74 MB/sec warmup 6 sec latency 122.042 ms 1 323 1.67 MB/sec warmup 7 sec latency 112.046 ms 1 358 1.60 MB/sec warmup 8 sec latency 96.801 ms 1 413 1.62 MB/sec warmup 9 sec latency 93.346 ms 1 469 1.64 MB/sec warmup 10 sec latency 87.297 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 2210560 3072 2205440 1% /mnt/lustre[MDT:0] lustre-OST0000_UUID 3771392 53248 3652608 2% /mnt/lustre[OST:0] lustre-OST0001_UUID 3771392 9216 3716096 1% /mnt/lustre[OST:1] filesystem_summary: 7542784 62464 7368704 1% /mnt/lustre 1 504 1.59 MB/sec warmup 11 sec latency 128.157 ms 1 590 1.69 MB/sec warmup 12 sec latency 117.867 ms 1 666 1.63 MB/sec warmup 13 sec latency 94.737 ms 1 709 1.51 MB/sec warmup 14 sec latency 91.609 ms 1 738 1.42 MB/sec warmup 15 sec latency 118.616 ms test_26 fail mds1 4 times 1 789 1.34 MB/sec warmup 16 sec latency 126.827 ms 1 808 1.26 MB/sec warmup 17 sec latency 179.403 ms Failing mds1 on oleg429-server 1 861 1.20 MB/sec warmup 18 sec latency 123.002 ms Stopping /mnt/lustre-mds1 (opts:) on oleg429-server 1 888 1.14 MB/sec warmup 19 sec latency 211.717 ms 1 900 0.00 MB/sec execute 1 sec latency 1716.392 ms 1 900 0.00 MB/sec execute 2 sec latency 2719.769 ms 17:06:51 (1786568811) shut down facet: mds1 facet_host: oleg429-server facet_failover_host: oleg429-server 1 900 0.00 MB/sec execute 3 sec latency 3719.984 ms 1 900 0.00 MB/sec execute 4 sec latency 4722.111 ms 1 900 0.00 MB/sec execute 5 sec latency 5722.763 ms 1 900 0.00 MB/sec execute 6 sec latency 6722.964 ms 1 900 0.00 MB/sec execute 7 sec latency 7723.863 ms 1 900 0.00 MB/sec execute 8 sec latency 8725.348 ms 1 900 0.00 MB/sec execute 9 sec latency 9725.742 ms 1 900 0.00 MB/sec execute 10 sec latency 10725.950 ms 1 900 0.00 MB/sec execute 11 sec latency 11726.172 ms 1 900 0.00 MB/sec execute 12 sec latency 12726.435 ms Failover mds1 to oleg429-server mount facets: mds1 1 900 0.00 MB/sec execute 13 sec latency 13726.741 ms 1 900 0.00 MB/sec execute 14 sec latency 14727.058 ms 1 900 0.00 MB/sec execute 15 sec latency 15731.007 ms Start mds1: mount -t lustre -o localrecov lustre-mdt1/mdt1 /mnt/lustre-mds1 1 900 0.00 MB/sec execute 16 sec latency 16731.451 ms 1 900 0.00 MB/sec execute 17 sec latency 17732.649 ms 1 900 0.00 MB/sec execute 18 sec latency 18736.378 ms 1 900 0.00 MB/sec execute 19 sec latency 19737.435 ms 1 900 0.00 MB/sec execute 20 sec latency 20738.928 ms 1 916 0.00 MB/sec execute 21 sec latency 20937.842 ms oleg429-server: oleg429-server.virtnet: executing set_default_debug -1 all 1 963 0.01 MB/sec execute 22 sec latency 109.700 ms pdsh@oleg429-client: oleg429-server: ssh exited with exit code 1 1 986 0.01 MB/sec execute 23 sec latency 329.429 ms Started lustre-MDT0000 17:07:12 (1786568832) targets are mounted 17:07:12 (1786568832) facet_failover done 1 1063 0.05 MB/sec execute 24 sec latency 91.071 ms 1 1134 0.05 MB/sec execute 25 sec latency 54.413 ms 1 1190 0.05 MB/sec execute 26 sec latency 74.274 ms 1 1233 0.05 MB/sec execute 27 sec latency 78.807 ms 1 1277 0.05 MB/sec execute 28 sec latency 98.953 ms oleg429-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 1420 0.15 MB/sec execute 29 sec latency 71.099 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 1481 0.15 MB/sec execute 30 sec latency 92.303 ms 1 1523 0.14 MB/sec execute 31 sec latency 224.551 ms 1 1591 0.14 MB/sec execute 32 sec latency 76.491 ms 1 1646 0.14 MB/sec execute 33 sec latency 148.068 ms 1 1696 0.13 MB/sec execute 34 sec latency 87.959 ms 1 1779 0.13 MB/sec execute 35 sec latency 102.097 ms 1 1845 0.13 MB/sec execute 36 sec latency 80.138 ms 1 1902 0.13 MB/sec execute 37 sec latency 176.428 ms 1 1973 0.13 MB/sec execute 38 sec latency 78.695 ms 1 2010 0.12 MB/sec execute 39 sec latency 86.677 ms 1 2080 0.12 MB/sec execute 40 sec latency 87.277 ms 1 2154 0.12 MB/sec execute 41 sec latency 72.319 ms 1 2198 0.12 MB/sec execute 42 sec latency 97.765 ms 1 2294 0.14 MB/sec execute 43 sec latency 103.446 ms 1 2354 0.14 MB/sec execute 44 sec latency 209.050 ms 1 2400 0.14 MB/sec execute 45 sec latency 174.584 ms dbench killed by signal 15 stopping dbench on /mnt/lustre at Wed Aug 12 17:07:35 EDT 2026 with return code 0 47767 pts/0 S+ 0:00 dbench -c client.txt 1 -D /mnt/lustre2/d26.replay-dual/run_dbench -t 100 killed dbench main pid 47767 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished