== replay-dual test 26: dbench and tar with mds failover ========================================================== 02:09:46 (1787119786) Starting client oleg154-client.virtnet: -o user_xattr,flock 192.168.201.154@tcp:/lustre /mnt/lustre Started clients oleg154-client.virtnet: 192.168.201.154@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 65714 Started dbench loop with 65716 striped dir -i0 -c2 -H crush2 /mnt/lustre/d26.replay-dual/run_tar 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 UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 1956 1269348 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 1760 1269544 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 Wed Aug 19 02:09:53 EDT 2026 waiting for dbench pid 65792 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 0 10 0.00 MB/sec warmup 1 sec latency 104.586 ms 1 80 1.76 MB/sec warmup 2 sec latency 119.367 ms 1 129 1.91 MB/sec warmup 3 sec latency 134.955 ms 1 155 1.63 MB/sec warmup 4 sec latency 229.613 ms 1 164 1.36 MB/sec warmup 5 sec latency 908.388 ms 1 184 1.23 MB/sec warmup 6 sec latency 404.874 ms 1 216 1.19 MB/sec warmup 7 sec latency 569.124 ms test_26 fail mds1 1 times 1 262 1.24 MB/sec warmup 8 sec latency 113.692 ms 1 289 1.19 MB/sec warmup 9 sec latency 150.008 ms 1 318 1.14 MB/sec warmup 10 sec latency 180.180 ms Failing mds1 on oleg154-server 1 354 1.15 MB/sec warmup 11 sec latency 124.611 ms Stopping /mnt/lustre-mds1 (opts:) on oleg154-server 1 386 1.14 MB/sec warmup 12 sec latency 204.863 ms 1 412 1.12 MB/sec warmup 13 sec latency 280.468 ms 1 412 1.04 MB/sec warmup 14 sec latency 1280.823 ms 02:10:08 (1787119808) shut down 1 412 0.97 MB/sec warmup 15 sec latency 2280.982 ms facet: mds1 facet_host: oleg154-server facet_failover_host: oleg154-server 1 412 0.91 MB/sec warmup 16 sec latency 3283.044 ms 1 412 0.86 MB/sec warmup 17 sec latency 4283.365 ms 1 412 0.81 MB/sec warmup 18 sec latency 5284.719 ms 1 412 0.77 MB/sec warmup 19 sec latency 6285.190 ms 1 412 0.00 MB/sec execute 1 sec latency 8286.220 ms 1 412 0.00 MB/sec execute 2 sec latency 9286.524 ms 1 412 0.00 MB/sec execute 3 sec latency 10286.895 ms 1 412 0.00 MB/sec execute 4 sec latency 11287.089 ms 1 412 0.00 MB/sec execute 5 sec latency 12288.155 ms Failover mds1 to oleg154-server mount facets: mds1 1 412 0.00 MB/sec execute 6 sec latency 13288.534 ms 1 412 0.00 MB/sec execute 7 sec latency 14289.653 ms 1 412 0.00 MB/sec execute 8 sec latency 15290.333 ms 1 412 0.00 MB/sec execute 9 sec latency 16293.857 ms 1 412 0.00 MB/sec execute 10 sec latency 17294.118 ms 1 412 0.00 MB/sec execute 11 sec latency 18294.519 ms 1 412 0.00 MB/sec execute 12 sec latency 19294.766 ms 1 412 0.00 MB/sec execute 13 sec latency 20295.034 ms 1 412 0.00 MB/sec execute 14 sec latency 21295.659 ms 1 412 0.00 MB/sec execute 15 sec latency 22296.050 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 412 0.00 MB/sec execute 16 sec latency 23296.832 ms 1 412 0.00 MB/sec execute 17 sec latency 24297.044 ms 1 412 0.00 MB/sec execute 18 sec latency 25319.416 ms 1 412 0.00 MB/sec execute 19 sec latency 26319.814 ms 1 412 0.00 MB/sec execute 20 sec latency 27320.129 ms 1 412 0.00 MB/sec execute 21 sec latency 28322.820 ms 1 412 0.00 MB/sec execute 22 sec latency 29323.055 ms 1 412 0.00 MB/sec execute 23 sec latency 30323.469 ms 1 412 0.00 MB/sec execute 24 sec latency 31325.870 ms 1 412 0.00 MB/sec execute 25 sec latency 32328.266 ms oleg154-server: oleg154-server.virtnet: executing set_default_debug -1 all 1 412 0.00 MB/sec execute 26 sec latency 33368.752 ms 1 412 0.00 MB/sec execute 27 sec latency 34370.437 ms pdsh@oleg154-client: oleg154-server: ssh exited with exit code 1 1 412 0.00 MB/sec execute 28 sec latency 35370.908 ms Started lustre-MDT0000 02:10:42 (1787119842) targets are mounted 02:10:42 (1787119842) facet_failover done 1 413 0.00 MB/sec execute 29 sec latency 36204.694 ms 1 437 0.03 MB/sec execute 30 sec latency 246.818 ms 1 467 0.06 MB/sec execute 31 sec latency 151.299 ms 1 493 0.08 MB/sec execute 32 sec latency 161.298 ms 1 515 0.09 MB/sec execute 33 sec latency 176.807 ms 1 552 0.13 MB/sec execute 34 sec latency 214.773 ms 1 594 0.17 MB/sec execute 35 sec latency 811.834 ms 1 642 0.18 MB/sec execute 36 sec latency 123.126 ms 1 673 0.18 MB/sec execute 37 sec latency 162.568 ms oleg154-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 697 0.17 MB/sec execute 38 sec latency 165.012 ms 1 718 0.17 MB/sec execute 39 sec latency 164.640 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 747 0.17 MB/sec execute 40 sec latency 120.055 ms 1 778 0.16 MB/sec execute 41 sec latency 123.765 ms 1 804 0.16 MB/sec execute 42 sec latency 196.219 ms 1 863 0.16 MB/sec execute 43 sec latency 145.667 ms 1 885 0.16 MB/sec execute 44 sec latency 155.751 ms 1 903 0.16 MB/sec execute 45 sec latency 201.924 ms 1 923 0.16 MB/sec execute 46 sec latency 281.680 ms 1 955 0.15 MB/sec execute 47 sec latency 142.973 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2140 1269164 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 1916 1269388 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 32728 3568836 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 19692 3584980 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 52420 7153816 1% /mnt/lustre 1 980 0.15 MB/sec execute 48 sec latency 150.336 ms 1 1009 0.16 MB/sec execute 49 sec latency 147.531 ms 1 1058 0.17 MB/sec execute 50 sec latency 91.031 ms 1 1092 0.16 MB/sec execute 51 sec latency 116.221 ms 1 1133 0.16 MB/sec execute 52 sec latency 133.863 ms 1 1161 0.16 MB/sec execute 53 sec latency 143.854 ms 1 1172 0.16 MB/sec execute 54 sec latency 799.840 ms 1 1182 0.15 MB/sec execute 55 sec latency 1260.039 ms 1 1215 0.15 MB/sec execute 56 sec latency 121.100 ms 1 1244 0.15 MB/sec execute 57 sec latency 106.771 ms 1 1274 0.15 MB/sec execute 58 sec latency 134.245 ms test_26 fail mds2 2 times 1 1391 0.19 MB/sec execute 59 sec latency 114.472 ms 1 1418 0.19 MB/sec execute 60 sec latency 167.628 ms Failing mds2 on oleg154-server 1 1447 0.19 MB/sec execute 61 sec latency 163.607 ms Stopping /mnt/lustre-mds2 (opts:) on oleg154-server 1 1486 0.18 MB/sec execute 62 sec latency 140.177 ms 1 1512 0.18 MB/sec execute 63 sec latency 127.108 ms 1 1562 0.18 MB/sec execute 64 sec latency 158.251 ms 1 1634 0.18 MB/sec execute 65 sec latency 148.512 ms 02:11:18 (1787119878) shut down facet: mds2 facet_host: oleg154-server facet_failover_host: oleg154-server 1 1689 0.18 MB/sec execute 66 sec latency 139.845 ms 1 1770 0.17 MB/sec execute 67 sec latency 75.224 ms 1 1825 0.17 MB/sec execute 68 sec latency 84.622 ms 1 1873 0.17 MB/sec execute 69 sec latency 103.342 ms 1 1954 0.17 MB/sec execute 70 sec latency 102.475 ms 1 2018 0.17 MB/sec execute 71 sec latency 84.782 ms 1 2108 0.17 MB/sec execute 72 sec latency 79.198 ms 1 2168 0.17 MB/sec execute 73 sec latency 66.783 ms 1 2259 0.16 MB/sec execute 74 sec latency 87.543 ms 1 2259 0.16 MB/sec execute 75 sec latency 1089.941 ms Failover mds2 to oleg154-server mount facets: mds2 1 2259 0.16 MB/sec execute 76 sec latency 2090.193 ms 1 2259 0.16 MB/sec execute 77 sec latency 3093.410 ms 1 2259 0.16 MB/sec execute 78 sec latency 4093.638 ms 1 2259 0.15 MB/sec execute 79 sec latency 5093.801 ms 1 2259 0.15 MB/sec execute 80 sec latency 6094.313 ms 1 2259 0.15 MB/sec execute 81 sec latency 7095.053 ms 1 2259 0.15 MB/sec execute 82 sec latency 8096.116 ms 1 2259 0.15 MB/sec execute 83 sec latency 9097.117 ms 1 2259 0.14 MB/sec execute 84 sec latency 10097.463 ms 1 2259 0.14 MB/sec execute 85 sec latency 11097.705 ms 1 2259 0.14 MB/sec execute 86 sec latency 12099.255 ms Start mds2: mount -t lustre -o localrecov /dev/mapper/mds2_flakey /mnt/lustre-mds2 1 2259 0.14 MB/sec execute 87 sec latency 13110.791 ms 1 2259 0.14 MB/sec execute 88 sec latency 14111.041 ms 1 2259 0.14 MB/sec execute 89 sec latency 15112.135 ms 1 2259 0.14 MB/sec execute 90 sec latency 16112.539 ms 1 2259 0.13 MB/sec execute 91 sec latency 17113.816 ms 1 2259 0.13 MB/sec execute 92 sec latency 18114.217 ms 1 2259 0.13 MB/sec execute 93 sec latency 19114.969 ms oleg154-server: oleg154-server.virtnet: executing set_default_debug -1 all 1 2259 0.13 MB/sec execute 94 sec latency 20115.225 ms 1 2259 0.13 MB/sec execute 95 sec latency 21115.550 ms pdsh@oleg154-client: oleg154-server: ssh exited with exit code 1 1 2259 0.13 MB/sec execute 96 sec latency 22116.030 ms Started lustre-MDT0001 02:11:50 (1787119910) targets are mounted 02:11:50 (1787119910) facet_failover done 1 2259 0.13 MB/sec execute 97 sec latency 23116.278 ms 1 2327 0.13 MB/sec execute 98 sec latency 23125.365 ms 1 2354 0.13 MB/sec execute 99 sec latency 128.837 ms 1 cleanup 100 sec 1 cleanup 101 sec 1 cleanup 102 sec 1 cleanup 103 sec 1 cleanup 104 sec 0 cleanup 104 sec Operation Count AvgLat MaxLat ---------------------------------------- NTCreateX 340 129.840 23125.344 Close 298 135.713 36204.665 Rename 12 112.408 201.899 Unlink 32 30.818 61.277 Qpathinfo 313 16.596 121.070 Qfileinfo 84 3.438 20.159 Qfsinfo 38 4.908 38.438 Sfileinfo 41 80.941 164.422 Find 105 12.618 59.393 WriteX 299 16.952 148.489 ReadX 379 2.697 110.605 Flush 32 64.653 153.979 Throughput 0.133966 MB/sec 1 clients 1 procs max_latency=36204.694 ms stopping dbench on /mnt/lustre at Wed Aug 19 02:11:57 EDT 2026 with return code 0 oleg154-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0001-mdc-*.mds_server_uuid 1475 0 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished mdc.lustre-MDT0001-mdc-*.mds_server_uuid in FULL state after 0 sec striped dir -i0 -c2 -H crush /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 Wed Aug 19 02:12:07 EDT 2026 waiting for dbench pid 67927 dbench version 4.00 - Copyright Andrew Tridgell 1999-2004 Running for 100 seconds with load 'client.txt' and minimum warmup 20 secs 1 of 1 processes prepared for launch 0 sec releasing clients UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2356 1268948 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 2124 1269180 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 26484 3578528 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 20732 3586016 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 47216 7164544 1% /mnt/lustre 0 8 0.00 MB/sec warmup 1 sec latency 110.047 ms 1 62 1.31 MB/sec warmup 2 sec latency 107.940 ms 1 111 1.74 MB/sec warmup 3 sec latency 92.034 ms 1 139 1.50 MB/sec warmup 4 sec latency 187.019 ms 1 171 1.39 MB/sec warmup 5 sec latency 208.201 ms 1 188 1.26 MB/sec warmup 6 sec latency 482.238 ms 1 223 1.23 MB/sec warmup 7 sec latency 185.470 ms 1 260 1.22 MB/sec warmup 8 sec latency 110.473 ms 1 300 1.21 MB/sec warmup 9 sec latency 122.017 ms 1 341 1.22 MB/sec warmup 10 sec latency 112.260 ms test_26 fail mds1 3 times 1 380 1.23 MB/sec warmup 11 sec latency 151.552 ms 1 413 1.21 MB/sec warmup 12 sec latency 128.990 ms Failing mds1 on oleg154-server 1 448 1.20 MB/sec warmup 13 sec latency 117.658 ms Stopping /mnt/lustre-mds1 (opts:) on oleg154-server 1 481 1.19 MB/sec warmup 14 sec latency 115.431 ms 1 493 1.14 MB/sec warmup 15 sec latency 710.470 ms 1 493 1.07 MB/sec warmup 16 sec latency 1710.928 ms 1 493 1.01 MB/sec warmup 17 sec latency 2711.403 ms 1 493 0.95 MB/sec warmup 18 sec latency 3711.692 ms 1 493 0.90 MB/sec warmup 19 sec latency 4712.007 ms 1 493 0.00 MB/sec execute 1 sec latency 6713.527 ms 1 493 0.00 MB/sec execute 2 sec latency 7714.034 ms 02:12:29 (1787119949) shut down facet: mds1 facet_host: oleg154-server facet_failover_host: oleg154-server 1 493 0.00 MB/sec execute 3 sec latency 8717.387 ms 1 493 0.00 MB/sec execute 4 sec latency 9717.668 ms 1 493 0.00 MB/sec execute 5 sec latency 10717.991 ms 1 493 0.00 MB/sec execute 6 sec latency 11718.376 ms 1 493 0.00 MB/sec execute 7 sec latency 12718.657 ms 1 493 0.00 MB/sec execute 8 sec latency 13719.241 ms 1 493 0.00 MB/sec execute 9 sec latency 14719.708 ms 1 493 0.00 MB/sec execute 10 sec latency 15720.271 ms 1 493 0.00 MB/sec execute 11 sec latency 16720.855 ms 1 493 0.00 MB/sec execute 12 sec latency 17721.355 ms Failover mds1 to oleg154-server mount facets: mds1 1 493 0.00 MB/sec execute 13 sec latency 18724.282 ms 1 493 0.00 MB/sec execute 14 sec latency 19726.022 ms 1 493 0.00 MB/sec execute 15 sec latency 20726.819 ms 1 493 0.00 MB/sec execute 16 sec latency 21727.522 ms 1 493 0.00 MB/sec execute 17 sec latency 22730.531 ms 1 493 0.00 MB/sec execute 18 sec latency 23732.968 ms 1 493 0.00 MB/sec execute 19 sec latency 24733.507 ms 1 493 0.00 MB/sec execute 20 sec latency 25733.795 ms 1 493 0.00 MB/sec execute 21 sec latency 26734.019 ms 1 493 0.00 MB/sec execute 22 sec latency 27735.779 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 493 0.00 MB/sec execute 23 sec latency 28743.802 ms 1 493 0.00 MB/sec execute 24 sec latency 29752.401 ms 1 493 0.00 MB/sec execute 25 sec latency 30752.976 ms 1 493 0.00 MB/sec execute 26 sec latency 31753.395 ms 1 493 0.00 MB/sec execute 27 sec latency 32755.910 ms 1 493 0.00 MB/sec execute 28 sec latency 33757.732 ms 1 493 0.00 MB/sec execute 29 sec latency 34757.951 ms 1 493 0.00 MB/sec execute 30 sec latency 35758.351 ms 1 493 0.00 MB/sec execute 31 sec latency 36758.649 ms 1 493 0.00 MB/sec execute 32 sec latency 37760.269 ms oleg154-server: oleg154-server.virtnet: executing set_default_debug -1 all 1 493 0.00 MB/sec execute 33 sec latency 38760.618 ms pdsh@oleg154-client: oleg154-server: ssh exited with exit code 1 1 493 0.00 MB/sec execute 34 sec latency 39760.958 ms Started lustre-MDT0000 02:13:02 (1787119982) targets are mounted 02:13:02 (1787119982) facet_failover done 1 511 0.01 MB/sec execute 35 sec latency 40088.640 ms 1 555 0.05 MB/sec execute 36 sec latency 159.182 ms 1 618 0.10 MB/sec execute 37 sec latency 88.555 ms 1 664 0.10 MB/sec execute 38 sec latency 133.198 ms 1 695 0.10 MB/sec execute 39 sec latency 159.222 ms 1 726 0.10 MB/sec execute 40 sec latency 156.290 ms 1 759 0.10 MB/sec execute 41 sec latency 132.995 ms 1 786 0.10 MB/sec execute 42 sec latency 120.518 ms oleg154-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 810 0.10 MB/sec execute 43 sec latency 134.210 ms 1 851 0.10 MB/sec execute 44 sec latency 141.234 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 882 0.10 MB/sec execute 45 sec latency 126.056 ms 1 884 0.10 MB/sec execute 46 sec latency 923.169 ms 1 897 0.10 MB/sec execute 47 sec latency 1410.795 ms 1 921 0.09 MB/sec execute 48 sec latency 133.127 ms 1 962 0.09 MB/sec execute 49 sec latency 125.419 ms 1 992 0.09 MB/sec execute 50 sec latency 110.800 ms 1 1077 0.11 MB/sec execute 51 sec latency 60.359 ms 1 1132 0.11 MB/sec execute 52 sec latency 82.336 ms 1 1174 0.11 MB/sec execute 53 sec latency 103.403 ms 1 1221 0.11 MB/sec execute 54 sec latency 79.048 ms tar: Unexpected EOF in archive tar: Unexpected EOF in archive 1 1259 0.11 MB/sec execute 55 sec latency 134.341 ms 1 1410 0.16 MB/sec execute 56 sec latency 104.722 ms 1 1467 0.15 MB/sec execute 57 sec latency 138.255 ms 1 1502 0.15 MB/sec execute 58 sec latency 260.310 ms 1 1553 0.15 MB/sec execute 59 sec latency 128.887 ms 1 1585 0.15 MB/sec execute 60 sec latency 67.372 ms 1 1621 0.15 MB/sec execute 61 sec latency 132.056 ms 1 1653 0.14 MB/sec execute 62 sec latency 174.656 ms 1 1687 0.14 MB/sec execute 63 sec latency 117.413 ms 1 1736 0.14 MB/sec execute 64 sec latency 144.665 ms tar: Error is not recoverable: exiting now dbench killed by signal 15 stopping dbench on /mnt/lustre at Wed Aug 19 02:13:32 EDT 2026 with return code 0 1 1789 0.14 MB/sec execute 65 sec latency 129.660 ms 67927 pts/0 S+ 0:00 dbench -c client.txt 1 -D /mnt/lustre2/d26.replay-dual/run_dbench -t 100 killed dbench main pid 67927 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished