== replay-dual test 26: dbench and tar with mds failover ========================================================== 02:24:14 (1787552654) Starting client oleg643-client.virtnet: -o user_xattr,flock 192.168.206.143@tcp:/lustre /mnt/lustre Started clients oleg643-client.virtnet: 192.168.206.143@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 65643 Started dbench loop with 65644 striped dir -i0 -c2 -H all_char /mnt/lustre2/d26.replay-dual/run_dbench striped dir -i0 -c2 -H crush /mnt/lustre/d26.replay-dual/run_tar 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 1414116 1940 1269364 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 1756 1269548 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 1564 3593020 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 1544 3605476 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 3108 7198496 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 Mon Aug 24 02:24:20 EDT 2026 waiting for dbench pid 65723 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 22 0.52 MB/sec warmup 1 sec latency 42.357 ms 1 81 1.80 MB/sec warmup 2 sec latency 130.219 ms 1 130 1.92 MB/sec warmup 3 sec latency 202.043 ms 1 173 1.76 MB/sec warmup 4 sec latency 147.998 ms 1 197 1.57 MB/sec warmup 5 sec latency 265.372 ms 1 223 1.43 MB/sec warmup 6 sec latency 192.918 ms 1 270 1.45 MB/sec warmup 7 sec latency 122.567 ms test_26 fail mds1 1 times 1 306 1.40 MB/sec warmup 8 sec latency 134.056 ms 1 339 1.36 MB/sec warmup 9 sec latency 124.758 ms Failing mds1 on oleg643-server 1 374 1.33 MB/sec warmup 10 sec latency 183.904 ms 1 412 1.33 MB/sec warmup 11 sec latency 137.050 ms Stopping /mnt/lustre-mds1 (opts:) on oleg643-server 1 437 1.28 MB/sec warmup 12 sec latency 177.527 ms 1 476 1.28 MB/sec warmup 13 sec latency 152.132 ms 1 501 1.25 MB/sec warmup 14 sec latency 373.516 ms 1 501 1.16 MB/sec warmup 15 sec latency 1373.713 ms 02:24:35 (1787552675) shut down facet: mds1 facet_host: oleg643-server facet_failover_host: oleg643-server 1 501 1.09 MB/sec warmup 16 sec latency 2374.013 ms 1 501 1.03 MB/sec warmup 17 sec latency 3374.570 ms 1 501 0.97 MB/sec warmup 18 sec latency 4374.783 ms 1 501 0.92 MB/sec warmup 19 sec latency 5375.714 ms 1 501 0.00 MB/sec execute 1 sec latency 7377.684 ms 1 501 0.00 MB/sec execute 2 sec latency 8377.974 ms 1 501 0.00 MB/sec execute 3 sec latency 9378.161 ms 1 501 0.00 MB/sec execute 4 sec latency 10379.460 ms 1 501 0.00 MB/sec execute 5 sec latency 11381.152 ms Failover mds1 to oleg643-server mount facets: mds1 1 501 0.00 MB/sec execute 6 sec latency 12381.386 ms 1 501 0.00 MB/sec execute 7 sec latency 13385.537 ms 1 501 0.00 MB/sec execute 8 sec latency 14385.784 ms 1 501 0.00 MB/sec execute 9 sec latency 15386.112 ms 1 501 0.00 MB/sec execute 10 sec latency 16386.321 ms 1 501 0.00 MB/sec execute 11 sec latency 17386.628 ms 1 501 0.00 MB/sec execute 12 sec latency 18387.123 ms 1 501 0.00 MB/sec execute 13 sec latency 19388.025 ms 1 501 0.00 MB/sec execute 14 sec latency 20388.193 ms 1 501 0.00 MB/sec execute 15 sec latency 21388.332 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 501 0.00 MB/sec execute 16 sec latency 22388.921 ms 1 501 0.00 MB/sec execute 17 sec latency 23391.795 ms 1 501 0.00 MB/sec execute 18 sec latency 24391.988 ms 1 501 0.00 MB/sec execute 19 sec latency 25392.175 ms 1 501 0.00 MB/sec execute 20 sec latency 26392.344 ms 1 501 0.00 MB/sec execute 21 sec latency 27392.860 ms 1 501 0.00 MB/sec execute 22 sec latency 28393.047 ms 1 501 0.00 MB/sec execute 23 sec latency 29393.617 ms 1 501 0.00 MB/sec execute 24 sec latency 30393.821 ms 1 501 0.00 MB/sec execute 25 sec latency 31398.325 ms 1 501 0.00 MB/sec execute 26 sec latency 32399.030 ms oleg643-server: oleg643-server.virtnet: executing set_default_debug -1 all 1 501 0.00 MB/sec execute 27 sec latency 33400.332 ms pdsh@oleg643-client: oleg643-server: ssh exited with exit code 1 1 501 0.00 MB/sec execute 28 sec latency 34400.520 ms Started lustre-MDT0000 02:25:08 (1787552708) targets are mounted 02:25:08 (1787552708) facet_failover done 1 501 0.00 MB/sec execute 29 sec latency 35400.864 ms 1 525 0.02 MB/sec execute 30 sec latency 35752.164 ms 1 591 0.10 MB/sec execute 31 sec latency 425.700 ms 1 663 0.12 MB/sec execute 32 sec latency 96.187 ms 1 708 0.11 MB/sec execute 33 sec latency 125.516 ms 1 740 0.11 MB/sec execute 34 sec latency 101.016 ms oleg643-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 780 0.11 MB/sec execute 35 sec latency 109.122 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 808 0.11 MB/sec execute 36 sec latency 112.993 ms 1 864 0.11 MB/sec execute 37 sec latency 98.073 ms 1 897 0.11 MB/sec execute 38 sec latency 135.920 ms 1 955 0.11 MB/sec execute 39 sec latency 87.671 ms 1 988 0.11 MB/sec execute 40 sec latency 134.785 ms 1 1063 0.13 MB/sec execute 41 sec latency 94.311 ms 1 1126 0.13 MB/sec execute 42 sec latency 74.994 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2148 1269156 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 1940 1269364 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 37896 3566624 2% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 17668 3586760 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 55564 7153384 1% /mnt/lustre 1 1170 0.13 MB/sec execute 43 sec latency 71.949 ms 1 1179 0.13 MB/sec execute 44 sec latency 802.762 ms 1 1231 0.12 MB/sec execute 45 sec latency 73.037 ms 1 1273 0.12 MB/sec execute 46 sec latency 105.233 ms 1 1417 0.18 MB/sec execute 47 sec latency 73.026 ms 1 1474 0.18 MB/sec execute 48 sec latency 93.728 ms 1 1523 0.18 MB/sec execute 49 sec latency 105.867 ms 1 1625 0.17 MB/sec execute 50 sec latency 56.946 ms test_26 fail mds2 2 times 1 1686 0.17 MB/sec execute 51 sec latency 74.724 ms 1 1762 0.17 MB/sec execute 52 sec latency 100.505 ms Failing mds2 on oleg643-server 1 1824 0.17 MB/sec execute 53 sec latency 88.141 ms Stopping /mnt/lustre-mds2 (opts:) on oleg643-server 1 1868 0.16 MB/sec execute 54 sec latency 106.863 ms 1 1870 0.16 MB/sec execute 55 sec latency 992.025 ms 1 1870 0.16 MB/sec execute 56 sec latency 1996.568 ms 02:25:36 (1787552736) shut down facet: mds2 facet_host: oleg643-server facet_failover_host: oleg643-server 1 1870 0.16 MB/sec execute 57 sec latency 2996.826 ms 1 1870 0.15 MB/sec execute 58 sec latency 3997.140 ms 1 1870 0.15 MB/sec execute 59 sec latency 5002.015 ms 1 1870 0.15 MB/sec execute 60 sec latency 6002.221 ms 1 1870 0.15 MB/sec execute 61 sec latency 7002.650 ms 1 1870 0.14 MB/sec execute 62 sec latency 8003.262 ms 1 1870 0.14 MB/sec execute 63 sec latency 9004.031 ms 1 1870 0.14 MB/sec execute 64 sec latency 10004.248 ms 1 1870 0.14 MB/sec execute 65 sec latency 11005.583 ms 1 1870 0.13 MB/sec execute 66 sec latency 12006.412 ms Failover mds2 to oleg643-server mount facets: mds2 1 1870 0.13 MB/sec execute 67 sec latency 13006.563 ms 1 1870 0.13 MB/sec execute 68 sec latency 14006.746 ms 1 1870 0.13 MB/sec execute 69 sec latency 15006.983 ms 1 1870 0.13 MB/sec execute 70 sec latency 16007.171 ms 1 1870 0.13 MB/sec execute 71 sec latency 17008.708 ms 1 1870 0.12 MB/sec execute 72 sec latency 18008.952 ms 1 1870 0.12 MB/sec execute 73 sec latency 19009.171 ms Start mds2: mount -t lustre -o localrecov /dev/mapper/mds2_flakey /mnt/lustre-mds2 1 1870 0.12 MB/sec execute 74 sec latency 20009.379 ms 1 1870 0.12 MB/sec execute 75 sec latency 21009.625 ms 1 1870 0.12 MB/sec execute 76 sec latency 22009.835 ms 1 1870 0.12 MB/sec execute 77 sec latency 23012.386 ms oleg643-server: oleg643-server.virtnet: executing set_default_debug -1 all 1 1870 0.11 MB/sec execute 78 sec latency 24012.803 ms pdsh@oleg643-client: oleg643-server: ssh exited with exit code 1 Started lustre-MDT0001 02:25:59 (1787552759) targets are mounted 02:25:59 (1787552759) facet_failover done 1 1870 0.11 MB/sec execute 79 sec latency 25014.000 ms 1 1870 0.11 MB/sec execute 80 sec latency 26014.520 ms 1 1870 0.11 MB/sec execute 81 sec latency 27017.375 ms 1 1870 0.11 MB/sec execute 82 sec latency 28019.198 ms 1 1924 0.11 MB/sec execute 83 sec latency 28056.052 ms 1 1982 0.11 MB/sec execute 84 sec latency 128.569 ms 1 2016 0.11 MB/sec execute 85 sec latency 121.930 ms 1 2080 0.11 MB/sec execute 86 sec latency 137.711 ms oleg643-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0001-mdc-*.mds_server_uuid 1475 0 1 2148 0.11 MB/sec execute 87 sec latency 98.493 ms mdc.lustre-MDT0001-mdc-*.mds_server_uuid in FULL state after 0 sec 1 2187 0.11 MB/sec execute 88 sec latency 103.891 ms 1 2259 0.10 MB/sec execute 89 sec latency 89.737 ms 1 2348 0.12 MB/sec execute 90 sec latency 48.556 ms 1 2383 0.12 MB/sec execute 91 sec latency 93.133 ms 1 2428 0.12 MB/sec execute 92 sec latency 67.088 ms 1 2479 0.12 MB/sec execute 93 sec latency 105.688 ms 1 2562 0.12 MB/sec execute 94 sec latency 108.736 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2460 1268844 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 2264 1269040 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 40240 3565696 2% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 29344 3576796 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 69584 7142492 1% /mnt/lustre 1 2597 0.12 MB/sec execute 95 sec latency 119.400 ms 1 2761 0.15 MB/sec execute 96 sec latency 68.482 ms 1 2882 0.15 MB/sec execute 97 sec latency 111.113 ms 1 2931 0.16 MB/sec execute 98 sec latency 89.454 ms 1 2973 0.16 MB/sec execute 99 sec latency 436.086 ms 1 cleanup 100 sec 1 cleanup 101 sec 1 cleanup 102 sec 1 cleanup 103 sec 0 cleanup 103 sec Operation Count AvgLat MaxLat ---------------------------------------- NTCreateX 393 136.712 35752.151 Close 329 96.233 28056.031 Rename 19 81.278 119.378 Unlink 45 53.941 1470.801 Qpathinfo 380 14.582 83.017 Qfileinfo 98 1.896 13.624 Qfsinfo 55 2.653 19.210 Sfileinfo 50 53.658 107.227 Find 130 11.913 96.174 WriteX 301 11.548 59.393 ReadX 633 0.817 78.863 LockX 2 8.878 13.227 UnlockX 2 7.604 9.495 Flush 36 47.984 94.740 Throughput 0.161872 MB/sec 1 clients 1 procs max_latency=35752.164 ms test_26 fail mds1 3 times stopping dbench on /mnt/lustre at Mon Aug 24 02:26:24 EDT 2026 with return code 0 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished Failing mds1 on oleg643-server Stopping /mnt/lustre-mds1 (opts:) on oleg643-server striped dir -i0 -c2 -H fnv_1a_64 /mnt/lustre2/d26.replay-dual/run_dbench 02:26:30 (1787552790) shut down facet: mds1 facet_host: oleg643-server facet_failover_host: oleg643-server Failover mds1 to oleg643-server mount facets: mds1 Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 oleg643-server: oleg643-server.virtnet: executing set_default_debug -1 all pdsh@oleg643-client: oleg643-server: ssh exited with exit code 1 Started lustre-MDT0000 02:27:04 (1787552824) targets are mounted 02:27:04 (1787552824) facet_failover done 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 Mon Aug 24 02:27:08 EDT 2026 waiting for dbench pid 68487 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 0 12 0.00 MB/sec warmup 1 sec latency 21.922 ms oleg643-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 90 2.10 MB/sec warmup 2 sec latency 102.671 ms 1 130 1.92 MB/sec warmup 3 sec latency 206.955 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 164 1.70 MB/sec warmup 4 sec latency 166.293 ms 1 184 1.48 MB/sec warmup 5 sec latency 397.835 ms 1 231 1.48 MB/sec warmup 6 sec latency 402.683 ms 1 287 1.53 MB/sec warmup 7 sec latency 118.005 ms 1 331 1.50 MB/sec warmup 8 sec latency 111.274 ms 1 387 1.53 MB/sec warmup 9 sec latency 85.064 ms 1 438 1.54 MB/sec warmup 10 sec latency 88.435 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2904 1268400 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 2672 1268632 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 29940 3572384 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 22136 3583232 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 52076 7155616 1% /mnt/lustre 1 483 1.53 MB/sec warmup 11 sec latency 175.533 ms 1 522 1.50 MB/sec warmup 12 sec latency 117.753 ms 1 612 1.61 MB/sec warmup 13 sec latency 99.789 ms 1 673 1.51 MB/sec warmup 14 sec latency 85.978 ms 1 711 1.41 MB/sec warmup 15 sec latency 130.967 ms 1 759 1.33 MB/sec warmup 16 sec latency 138.271 ms 1 794 1.26 MB/sec warmup 17 sec latency 136.857 ms 1 851 1.20 MB/sec warmup 18 sec latency 70.085 ms 1 884 1.14 MB/sec warmup 19 sec latency 339.531 ms test_26 fail mds2 4 times Failing mds2 on oleg643-server 1 925 0.09 MB/sec execute 1 sec latency 792.474 ms Stopping /mnt/lustre-mds2 (opts:) on oleg643-server 1 970 0.07 MB/sec execute 2 sec latency 112.478 ms 1 995 0.08 MB/sec execute 3 sec latency 156.606 ms 1 995 0.06 MB/sec execute 4 sec latency 1158.304 ms 1 995 0.05 MB/sec execute 5 sec latency 2159.776 ms 1 995 0.04 MB/sec execute 6 sec latency 3160.830 ms 1 995 0.03 MB/sec execute 7 sec latency 4161.351 ms 1 995 0.03 MB/sec execute 8 sec latency 5161.528 ms 1 995 0.03 MB/sec execute 9 sec latency 6161.719 ms 1 995 0.02 MB/sec execute 10 sec latency 7161.914 ms 02:27:40 (1787552860) shut down 1 995 0.02 MB/sec execute 11 sec latency 8164.077 ms facet: mds2 facet_host: oleg643-server facet_failover_host: oleg643-server 1 995 0.02 MB/sec execute 12 sec latency 9165.501 ms 1 995 0.02 MB/sec execute 13 sec latency 10165.712 ms 1 995 0.02 MB/sec execute 14 sec latency 11165.926 ms 1 995 0.02 MB/sec execute 15 sec latency 12166.373 ms 1 995 0.01 MB/sec execute 16 sec latency 13166.868 ms 1 995 0.01 MB/sec execute 17 sec latency 14167.061 ms 1 995 0.01 MB/sec execute 18 sec latency 15167.342 ms 1 995 0.01 MB/sec execute 19 sec latency 16167.741 ms 1 995 0.01 MB/sec execute 20 sec latency 17168.217 ms 1 995 0.01 MB/sec execute 21 sec latency 18170.928 ms Failover mds2 to oleg643-server mount facets: mds2 1 995 0.01 MB/sec execute 22 sec latency 19171.314 ms 1 995 0.01 MB/sec execute 23 sec latency 20181.770 ms 1 995 0.01 MB/sec execute 24 sec latency 21182.741 ms 1 995 0.01 MB/sec execute 25 sec latency 22182.898 ms 1 995 0.01 MB/sec execute 26 sec latency 23183.850 ms 1 995 0.01 MB/sec execute 27 sec latency 24185.614 ms 1 995 0.01 MB/sec execute 28 sec latency 25185.813 ms Start mds2: mount -t lustre -o localrecov /dev/mapper/mds2_flakey /mnt/lustre-mds2 1 995 0.01 MB/sec execute 29 sec latency 26186.268 ms 1 995 0.01 MB/sec execute 30 sec latency 27186.480 ms 1 995 0.01 MB/sec execute 31 sec latency 28190.149 ms 1 995 0.01 MB/sec execute 32 sec latency 29190.542 ms 1 995 0.01 MB/sec execute 33 sec latency 30192.646 ms 1 995 0.01 MB/sec execute 34 sec latency 31193.216 ms 1 995 0.01 MB/sec execute 35 sec latency 32193.735 ms 1 995 0.01 MB/sec execute 36 sec latency 33193.965 ms oleg643-server: oleg643-server.virtnet: executing set_default_debug -1 all 1 995 0.01 MB/sec execute 37 sec latency 34194.144 ms 1 995 0.01 MB/sec execute 38 sec latency 35195.554 ms pdsh@oleg643-client: oleg643-server: ssh exited with exit code 1 Started lustre-MDT0001 02:28:08 (1787552888) targets are mounted 02:28:08 (1787552888) facet_failover done 1 1051 0.03 MB/sec execute 39 sec latency 35398.440 ms 1 1126 0.03 MB/sec execute 40 sec latency 66.065 ms 1 1181 0.03 MB/sec execute 41 sec latency 61.560 ms 1 1225 0.03 MB/sec execute 42 sec latency 97.152 ms 1 1296 0.04 MB/sec execute 43 sec latency 73.728 ms 1 1419 0.10 MB/sec execute 44 sec latency 132.311 ms oleg643-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0001-mdc-*.mds_server_uuid 1475 0 1 1467 0.10 MB/sec execute 45 sec latency 97.895 ms mdc.lustre-MDT0001-mdc-*.mds_server_uuid in FULL state after 0 sec 1 1497 0.09 MB/sec execute 46 sec latency 159.911 ms 1 1544 0.09 MB/sec execute 47 sec latency 201.117 ms 1 1609 0.09 MB/sec execute 48 sec latency 86.964 ms 1 1660 0.09 MB/sec execute 49 sec latency 97.229 ms 1 1707 0.09 MB/sec execute 50 sec latency 107.375 ms 1 1775 0.09 MB/sec execute 51 sec latency 107.202 ms 1 1840 0.09 MB/sec execute 52 sec latency 65.089 ms 1 1888 0.09 MB/sec execute 53 sec latency 107.292 ms 1 1974 0.09 MB/sec execute 54 sec latency 81.401 ms 1 2020 0.09 MB/sec execute 55 sec latency 122.134 ms 1 2094 0.09 MB/sec execute 56 sec latency 119.463 ms 1 2152 0.09 MB/sec execute 57 sec latency 75.117 ms 1 2178 0.09 MB/sec execute 58 sec latency 188.312 ms 1 2239 0.09 MB/sec execute 59 sec latency 89.358 ms 1 2334 0.10 MB/sec execute 60 sec latency 101.294 ms 1 2380 0.10 MB/sec execute 61 sec latency 107.428 ms 1 2426 0.10 MB/sec execute 62 sec latency 77.751 ms 1 2463 0.11 MB/sec execute 63 sec latency 94.804 ms dbench killed by signal 15 stopping dbench on /mnt/lustre at Mon Aug 24 02:28:33 EDT 2026 with return code 0 1 2551 0.11 MB/sec execute 64 sec latency 96.708 ms 68487 pts/0 S+ 0:00 dbench -c client.txt 1 -D /mnt/lustre2/d26.replay-dual/run_dbench -t 100 killed dbench main pid 68487 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished