== replay-dual test 26: dbench and tar with mds failover ========================================================== 09:05:28 (1788267928) Starting client oleg114-client.virtnet: -o user_xattr,flock 192.168.201.114@tcp:/lustre /mnt/lustre Started clients oleg114-client.virtnet: 192.168.201.114@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 65668 Started dbench loop with 65669 striped dir -i0 -c2 -H fnv_1a_64 /mnt/lustre2/d26.replay-dual/run_dbench striped dir -i0 -c2 -H crush2 /mnt/lustre/d26.replay-dual/run_tar 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 Tue Sep 1 09:05:32 EDT 2026 waiting for dbench pid 65718 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 1976 1269328 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 1768 1269536 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 1564 3605456 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 26120 3579684 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 27684 7185140 1% /mnt/lustre 1 51 2.09 MB/sec warmup 1 sec latency 52.365 ms 1 121 2.74 MB/sec warmup 2 sec latency 96.597 ms 1 173 2.35 MB/sec warmup 3 sec latency 110.606 ms 1 212 2.05 MB/sec warmup 4 sec latency 318.660 ms 1 264 1.98 MB/sec warmup 5 sec latency 105.816 ms 1 313 1.91 MB/sec warmup 6 sec latency 107.995 ms 1 368 1.86 MB/sec warmup 7 sec latency 87.428 ms test_26 fail mds1 1 times 1 433 1.90 MB/sec warmup 8 sec latency 97.578 ms 1 480 1.85 MB/sec warmup 9 sec latency 116.117 ms Failing mds1 on oleg114-server 1 528 1.82 MB/sec warmup 10 sec latency 112.705 ms Stopping /mnt/lustre-mds1 (opts:) on oleg114-server 1 639 1.91 MB/sec warmup 11 sec latency 102.813 ms 1 640 1.75 MB/sec warmup 12 sec latency 975.657 ms 1 640 1.62 MB/sec warmup 13 sec latency 1976.031 ms 1 640 1.50 MB/sec warmup 14 sec latency 2976.210 ms 1 640 1.40 MB/sec warmup 15 sec latency 3976.504 ms 1 640 1.31 MB/sec warmup 16 sec latency 4976.852 ms 1 640 1.24 MB/sec warmup 17 sec latency 5977.018 ms 1 640 1.17 MB/sec warmup 18 sec latency 6977.218 ms 09:05:51 (1788267951) shut down facet: mds1 facet_host: oleg114-server facet_failover_host: oleg114-server 1 640 1.11 MB/sec warmup 19 sec latency 7977.762 ms 1 640 0.00 MB/sec execute 1 sec latency 9978.109 ms 1 640 0.00 MB/sec execute 2 sec latency 10978.382 ms 1 640 0.00 MB/sec execute 3 sec latency 11978.665 ms 1 640 0.00 MB/sec execute 4 sec latency 12978.941 ms 1 640 0.00 MB/sec execute 5 sec latency 13979.793 ms 1 640 0.00 MB/sec execute 6 sec latency 14980.043 ms 1 640 0.00 MB/sec execute 7 sec latency 15982.823 ms 1 640 0.00 MB/sec execute 8 sec latency 16983.184 ms Failover mds1 to oleg114-server 1 640 0.00 MB/sec execute 9 sec latency 17983.340 ms mount facets: mds1 1 640 0.00 MB/sec execute 10 sec latency 18986.153 ms 1 640 0.00 MB/sec execute 11 sec latency 19987.195 ms 1 640 0.00 MB/sec execute 12 sec latency 20987.561 ms 1 640 0.00 MB/sec execute 13 sec latency 21990.154 ms 1 640 0.00 MB/sec execute 14 sec latency 22990.519 ms 1 640 0.00 MB/sec execute 15 sec latency 23991.012 ms 1 640 0.00 MB/sec execute 16 sec latency 24991.955 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 640 0.00 MB/sec execute 17 sec latency 25992.139 ms 1 640 0.00 MB/sec execute 18 sec latency 26992.560 ms 1 640 0.00 MB/sec execute 19 sec latency 27992.810 ms 1 640 0.00 MB/sec execute 20 sec latency 28993.015 ms 1 640 0.00 MB/sec execute 21 sec latency 29993.290 ms 1 640 0.00 MB/sec execute 22 sec latency 30993.492 ms 1 640 0.00 MB/sec execute 23 sec latency 31993.687 ms 1 640 0.00 MB/sec execute 24 sec latency 32993.939 ms 1 640 0.00 MB/sec execute 25 sec latency 33994.224 ms 1 640 0.00 MB/sec execute 26 sec latency 34995.171 ms 1 640 0.00 MB/sec execute 27 sec latency 35995.348 ms 1 640 0.00 MB/sec execute 28 sec latency 36995.822 ms 1 640 0.00 MB/sec execute 29 sec latency 37996.817 ms oleg114-server: oleg114-server.virtnet: executing set_default_debug -1 all 1 640 0.00 MB/sec execute 30 sec latency 38997.216 ms pdsh@oleg114-client: oleg114-server: ssh exited with exit code 1 Started lustre-MDT0000 09:06:23 (1788267983) targets are mounted 09:06:23 (1788267983) facet_failover done 1 640 0.00 MB/sec execute 31 sec latency 39999.900 ms 1 640 0.00 MB/sec execute 32 sec latency 41000.099 ms 1 640 0.00 MB/sec execute 33 sec latency 42001.374 ms 1 685 0.00 MB/sec execute 34 sec latency 42202.025 ms 1 735 0.01 MB/sec execute 35 sec latency 111.483 ms 1 779 0.01 MB/sec execute 36 sec latency 110.622 ms oleg114-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 821 0.01 MB/sec execute 37 sec latency 79.571 ms 1 876 0.02 MB/sec execute 38 sec latency 134.895 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 884 0.02 MB/sec execute 39 sec latency 759.267 ms 1 910 0.02 MB/sec execute 40 sec latency 889.209 ms 1 955 0.02 MB/sec execute 41 sec latency 92.078 ms 1 1001 0.02 MB/sec execute 42 sec latency 108.937 ms 1 1124 0.04 MB/sec execute 43 sec latency 41.778 ms 1 1196 0.05 MB/sec execute 44 sec latency 60.044 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2240 1269064 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 1988 1269316 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 12944 3593716 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 46120 3554548 2% /mnt/lustre[OST:1] filesystem_summary: 7666232 59064 7148264 1% /mnt/lustre 1 1244 0.04 MB/sec execute 45 sec latency 90.825 ms 1 1386 0.11 MB/sec execute 46 sec latency 89.453 ms 1 1448 0.11 MB/sec execute 47 sec latency 69.178 ms 1 1504 0.10 MB/sec execute 48 sec latency 175.206 ms 1 1571 0.10 MB/sec execute 49 sec latency 65.307 ms 1 1616 0.10 MB/sec execute 50 sec latency 87.745 ms 1 1670 0.10 MB/sec execute 51 sec latency 81.632 ms 1 1764 0.10 MB/sec execute 52 sec latency 78.693 ms test_26 fail mds2 2 times 1 1834 0.10 MB/sec execute 53 sec latency 63.580 ms Failing mds2 on oleg114-server 1 1888 0.10 MB/sec execute 54 sec latency 117.167 ms Stopping /mnt/lustre-mds2 (opts:) on oleg114-server 1 1974 0.10 MB/sec execute 55 sec latency 73.905 ms 1 2033 0.10 MB/sec execute 56 sec latency 82.264 ms 09:06:49 (1788268009) shut down 1 2098 0.10 MB/sec execute 57 sec latency 81.223 ms facet: mds2 facet_host: oleg114-server facet_failover_host: oleg114-server 1 2170 0.10 MB/sec execute 58 sec latency 99.563 ms 1 2259 0.10 MB/sec execute 59 sec latency 145.843 ms 1 2259 0.10 MB/sec execute 60 sec latency 1146.216 ms 1 2259 0.09 MB/sec execute 61 sec latency 2146.404 ms 1 2259 0.09 MB/sec execute 62 sec latency 3147.732 ms 1 2259 0.09 MB/sec execute 63 sec latency 4148.128 ms 1 2259 0.09 MB/sec execute 64 sec latency 5150.272 ms 1 2259 0.09 MB/sec execute 65 sec latency 6150.836 ms 1 2259 0.09 MB/sec execute 66 sec latency 7151.080 ms 1 2259 0.09 MB/sec execute 67 sec latency 8151.352 ms Failover mds2 to oleg114-server mount facets: mds2 1 2259 0.08 MB/sec execute 68 sec latency 9151.576 ms 1 2259 0.08 MB/sec execute 69 sec latency 10153.392 ms 1 2259 0.08 MB/sec execute 70 sec latency 11153.667 ms 1 2259 0.08 MB/sec execute 71 sec latency 12153.813 ms 1 2259 0.08 MB/sec execute 72 sec latency 13154.240 ms 1 2259 0.08 MB/sec execute 73 sec latency 14154.828 ms Start mds2: mount -t lustre -o localrecov /dev/mapper/mds2_flakey /mnt/lustre-mds2 1 2259 0.08 MB/sec execute 74 sec latency 15155.256 ms 1 2259 0.08 MB/sec execute 75 sec latency 16155.541 ms 1 2259 0.08 MB/sec execute 76 sec latency 17156.262 ms 1 2259 0.07 MB/sec execute 77 sec latency 18156.744 ms oleg114-server: oleg114-server.virtnet: executing set_default_debug -1 all pdsh@oleg114-client: oleg114-server: ssh exited with exit code 1 1 2259 0.07 MB/sec execute 78 sec latency 19156.996 ms Started lustre-MDT0001 09:07:10 (1788268030) targets are mounted 09:07:10 (1788268030) facet_failover done 1 2259 0.07 MB/sec execute 79 sec latency 20157.164 ms 1 2259 0.07 MB/sec execute 80 sec latency 21157.390 ms 1 2334 0.08 MB/sec execute 81 sec latency 21565.659 ms 1 2388 0.08 MB/sec execute 82 sec latency 88.404 ms 1 2442 0.08 MB/sec execute 83 sec latency 99.317 ms oleg114-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0001-mdc-*.mds_server_uuid 1475 0 1 2554 0.09 MB/sec execute 84 sec latency 65.177 ms mdc.lustre-MDT0001-mdc-*.mds_server_uuid in FULL state after 0 sec 1 2602 0.09 MB/sec execute 85 sec latency 122.997 ms 1 2881 0.13 MB/sec execute 86 sec latency 61.542 ms 1 2990 0.14 MB/sec execute 87 sec latency 52.200 ms 1 3210 0.15 MB/sec execute 88 sec latency 80.707 ms 1 3353 0.16 MB/sec execute 89 sec latency 59.436 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2572 1268732 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 2308 1268996 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 21692 3582528 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 47936 3556568 2% /mnt/lustre[OST:1] filesystem_summary: 7666232 69628 7139096 1% /mnt/lustre 1 3522 0.19 MB/sec execute 90 sec latency 59.601 ms 1 3624 0.19 MB/sec execute 91 sec latency 52.209 ms 1 3677 0.19 MB/sec execute 92 sec latency 83.490 ms 1 3729 0.19 MB/sec execute 93 sec latency 80.207 ms 1 3802 0.20 MB/sec execute 94 sec latency 83.911 ms 1 3849 0.20 MB/sec execute 95 sec latency 112.225 ms 1 3927 0.20 MB/sec execute 96 sec latency 50.885 ms 1 3995 0.20 MB/sec execute 97 sec latency 88.514 ms test_26 fail mds1 3 times 1 4055 0.19 MB/sec execute 98 sec latency 83.041 ms Failing mds1 on oleg114-server 1 4130 0.19 MB/sec execute 99 sec latency 67.306 ms Stopping /mnt/lustre-mds1 (opts:) on oleg114-server 1 cleanup 100 sec 1 cleanup 101 sec 09:07:33 (1788268053) shut down facet: mds1 facet_host: oleg114-server facet_failover_host: oleg114-server 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 1 cleanup 111 sec Failover mds1 to oleg114-server mount facets: mds1 1 cleanup 112 sec 1 cleanup 113 sec 1 cleanup 114 sec 1 cleanup 115 sec 1 cleanup 116 sec Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 cleanup 117 sec 1 cleanup 118 sec 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 1 cleanup 126 sec 1 cleanup 127 sec 1 cleanup 128 sec 1 cleanup 129 sec oleg114-server: oleg114-server.virtnet: executing set_default_debug -1 all pdsh@oleg114-client: oleg114-server: ssh exited with exit code 1 1 cleanup 130 sec Started lustre-MDT0000 09:08:03 (1788268083) targets are mounted 09:08:03 (1788268083) facet_failover done 1 cleanup 131 sec 1 cleanup 132 sec 1 cleanup 133 sec 1 cleanup 134 sec 0 cleanup 135 sec Operation Count AvgLat MaxLat ---------------------------------------- NTCreateX 611 123.775 33278.415 Close 448 8.489 24.883 Rename 26 60.501 111.466 Unlink 124 16.979 45.329 Qpathinfo 583 10.470 67.396 Qfileinfo 97 1.257 12.034 Qfsinfo 102 1.815 18.111 Sfileinfo 49 901.694 42202.002 Find 214 7.824 32.107 WriteX 302 8.917 62.910 ReadX 942 1.037 76.386 LockX 2 10.947 12.945 UnlockX 2 5.903 7.250 Flush 43 38.932 134.879 Throughput 0.192063 MB/sec 1 clients 1 procs max_latency=42202.025 ms stopping dbench on /mnt/lustre at Tue Sep 1 09:08:07 EDT 2026 with return code 0 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished oleg114-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 striped dir -i0 -c2 -H crush2 /mnt/lustre2/d26.replay-dual/run_dbench mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 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 Tue Sep 1 09:08:12 EDT 2026 waiting for dbench pid 68916 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 87 3.98 MB/sec warmup 1 sec latency 67.882 ms 1 157 3.26 MB/sec warmup 2 sec latency 79.742 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2952 1268352 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 2692 1268612 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 11828 3595164 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 37172 3568188 2% /mnt/lustre[OST:1] filesystem_summary: 7666232 49000 7163352 1% /mnt/lustre 1 196 2.61 MB/sec warmup 3 sec latency 313.536 ms 1 239 2.28 MB/sec warmup 4 sec latency 105.884 ms 1 289 2.14 MB/sec warmup 5 sec latency 103.945 ms 1 339 2.04 MB/sec warmup 6 sec latency 103.428 ms 1 397 2.01 MB/sec warmup 7 sec latency 106.702 ms 1 462 2.02 MB/sec warmup 8 sec latency 76.706 ms 1 522 2.00 MB/sec warmup 9 sec latency 87.343 ms 1 652 2.10 MB/sec warmup 10 sec latency 100.871 ms test_26 fail mds2 4 times 1 706 1.92 MB/sec warmup 11 sec latency 104.134 ms Failing mds2 on oleg114-server 1 747 1.77 MB/sec warmup 12 sec latency 114.254 ms Stopping /mnt/lustre-mds2 (opts:) on oleg114-server 1 808 1.65 MB/sec warmup 13 sec latency 82.477 ms 1 884 1.55 MB/sec warmup 14 sec latency 140.687 ms 1 918 1.45 MB/sec warmup 15 sec latency 540.214 ms 1 995 1.37 MB/sec warmup 16 sec latency 55.067 ms 1 995 1.29 MB/sec warmup 17 sec latency 1045.591 ms 1 995 1.22 MB/sec warmup 18 sec latency 2045.842 ms 1 995 1.15 MB/sec warmup 19 sec latency 3046.366 ms 09:08:32 (1788268112) shut down facet: mds2 facet_host: oleg114-server facet_failover_host: oleg114-server 1 995 0.00 MB/sec execute 1 sec latency 5047.607 ms 1 995 0.00 MB/sec execute 2 sec latency 6048.664 ms 1 995 0.00 MB/sec execute 3 sec latency 7048.895 ms 1 995 0.00 MB/sec execute 4 sec latency 8049.314 ms 1 995 0.00 MB/sec execute 5 sec latency 9050.100 ms 1 995 0.00 MB/sec execute 6 sec latency 10050.458 ms 1 995 0.00 MB/sec execute 7 sec latency 11051.558 ms 1 995 0.00 MB/sec execute 8 sec latency 12051.803 ms 1 995 0.00 MB/sec execute 9 sec latency 13052.353 ms Failover mds2 to oleg114-server mount facets: mds2 1 995 0.00 MB/sec execute 10 sec latency 14052.719 ms 1 995 0.00 MB/sec execute 11 sec latency 15054.214 ms 1 995 0.00 MB/sec execute 12 sec latency 16054.714 ms 1 995 0.00 MB/sec execute 13 sec latency 17055.046 ms 1 995 0.00 MB/sec execute 14 sec latency 18057.053 ms 1 995 0.00 MB/sec execute 15 sec latency 19057.304 ms Start mds2: mount -t lustre -o localrecov /dev/mapper/mds2_flakey /mnt/lustre-mds2 1 995 0.00 MB/sec execute 16 sec latency 20057.579 ms 1 995 0.00 MB/sec execute 17 sec latency 21058.634 ms 1 995 0.00 MB/sec execute 18 sec latency 22059.567 ms 1 995 0.00 MB/sec execute 19 sec latency 23059.915 ms 1 995 0.00 MB/sec execute 20 sec latency 24060.126 ms oleg114-server: oleg114-server.virtnet: executing set_default_debug -1 all 1 995 0.00 MB/sec execute 21 sec latency 25063.388 ms pdsh@oleg114-client: oleg114-server: ssh exited with exit code 1 Started lustre-MDT0001 09:08:54 (1788268134) targets are mounted 09:08:54 (1788268134) facet_failover done 1 995 0.00 MB/sec execute 22 sec latency 26064.385 ms 1 995 0.00 MB/sec execute 23 sec latency 27064.782 ms 1 1009 0.02 MB/sec execute 24 sec latency 27641.265 ms 1 1082 0.04 MB/sec execute 25 sec latency 120.065 ms 1 1147 0.04 MB/sec execute 26 sec latency 96.540 ms 1 1214 0.04 MB/sec execute 27 sec latency 114.827 ms oleg114-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0001-mdc-*.mds_server_uuid 1475 0 1 1264 0.04 MB/sec execute 28 sec latency 99.683 ms mdc.lustre-MDT0001-mdc-*.mds_server_uuid in FULL state after 0 sec 1 1418 0.14 MB/sec execute 29 sec latency 81.031 ms 1 1479 0.14 MB/sec execute 30 sec latency 227.208 ms 1 1538 0.14 MB/sec execute 31 sec latency 112.976 ms 1 1619 0.13 MB/sec execute 32 sec latency 97.439 ms 1 1696 0.13 MB/sec execute 33 sec latency 54.589 ms 1 1805 0.13 MB/sec execute 34 sec latency 62.293 ms 1 1877 0.13 MB/sec execute 35 sec latency 56.656 ms 1 1974 0.13 MB/sec execute 36 sec latency 62.384 ms 1 2018 0.12 MB/sec execute 37 sec latency 74.378 ms 1 2138 0.13 MB/sec execute 38 sec latency 52.140 ms 1 2198 0.12 MB/sec execute 39 sec latency 150.652 ms 1 2327 0.15 MB/sec execute 40 sec latency 48.952 ms 1 2388 0.15 MB/sec execute 41 sec latency 60.019 ms dbench killed by signal 15 stopping dbench on /mnt/lustre at Tue Sep 1 09:09:14 EDT 2026 with return code 0 68916 pts/0 S+ 0:00 dbench -c client.txt 1 -D /mnt/lustre2/d26.replay-dual/run_dbench -t 100 1 2458 0.15 MB/sec execute 42 sec latency 61.152 ms killed dbench main pid 68916 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished