== replay-dual test 26: dbench and tar with mds failover ========================================================== 07:52:14 (1787399534) Starting client oleg101-client.virtnet: -o user_xattr,flock 192.168.201.101@tcp:/lustre /mnt/lustre Started clients oleg101-client.virtnet: 192.168.201.101@tcp:/lustre on /mnt/lustre type lustre (rw,flock,checksum,encrypt,lazystatfs,lruresize,nolock,statfs_project,nouser_fid2path,user_xattr,verbose) Started tar loop with pid 65661 Started dbench loop with 65662 striped dir -i0 -c2 -H crush2 /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 '/usr/share/dbench/client.txt' -> 'client.txt' running 'dbench 1 -D /mnt/lustre2/d26.replay-dual/run_dbench -t 100' on /mnt/lustre at Sat Aug 22 07:52:19 EDT 2026 waiting for dbench pid 65711 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 UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 1980 1269324 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 1792 1269512 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 17948 3580748 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 1544 3605476 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 19492 7186224 1% /mnt/lustre 1 of 1 processes prepared for launch 0 sec releasing clients 0 10 0.00 MB/sec warmup 1 sec latency 70.238 ms 1 71 1.57 MB/sec warmup 2 sec latency 114.744 ms 1 121 1.83 MB/sec warmup 3 sec latency 111.355 ms 1 155 1.63 MB/sec warmup 4 sec latency 130.907 ms 1 184 1.47 MB/sec warmup 5 sec latency 354.194 ms 1 216 1.39 MB/sec warmup 6 sec latency 445.310 ms 1 263 1.41 MB/sec warmup 7 sec latency 125.783 ms 1 301 1.37 MB/sec warmup 8 sec latency 157.382 ms test_26 fail mds1 1 times 1 341 1.36 MB/sec warmup 9 sec latency 126.634 ms 1 371 1.32 MB/sec warmup 10 sec latency 148.399 ms Failing mds1 on oleg101-server 1 397 1.28 MB/sec warmup 11 sec latency 154.897 ms Stopping /mnt/lustre-mds1 (opts:) on oleg101-server 1 428 1.26 MB/sec warmup 12 sec latency 322.395 ms 1 460 1.24 MB/sec warmup 13 sec latency 281.707 ms 1 460 1.15 MB/sec warmup 14 sec latency 1282.350 ms 1 460 1.07 MB/sec warmup 15 sec latency 2282.599 ms 07:52:34 (1787399554) shut down facet: mds1 facet_host: oleg101-server facet_failover_host: oleg101-server 1 460 1.01 MB/sec warmup 16 sec latency 3282.956 ms 1 460 0.95 MB/sec warmup 17 sec latency 4285.568 ms 1 460 0.90 MB/sec warmup 18 sec latency 5285.917 ms 1 460 0.85 MB/sec warmup 19 sec latency 6286.306 ms 1 460 0.00 MB/sec execute 1 sec latency 8288.540 ms 1 460 0.00 MB/sec execute 2 sec latency 9288.774 ms 1 460 0.00 MB/sec execute 3 sec latency 10289.704 ms 1 460 0.00 MB/sec execute 4 sec latency 11290.511 ms 1 460 0.00 MB/sec execute 5 sec latency 12291.935 ms Failover mds1 to oleg101-server mount facets: mds1 1 460 0.00 MB/sec execute 6 sec latency 13292.365 ms 1 460 0.00 MB/sec execute 7 sec latency 14292.764 ms 1 460 0.00 MB/sec execute 8 sec latency 15293.106 ms 1 460 0.00 MB/sec execute 9 sec latency 16295.725 ms 1 460 0.00 MB/sec execute 10 sec latency 17296.035 ms 1 460 0.00 MB/sec execute 11 sec latency 18296.327 ms 1 460 0.00 MB/sec execute 12 sec latency 19296.556 ms 1 460 0.00 MB/sec execute 13 sec latency 20296.788 ms 1 460 0.00 MB/sec execute 14 sec latency 21298.218 ms 1 460 0.00 MB/sec execute 15 sec latency 22299.071 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 460 0.00 MB/sec execute 16 sec latency 23299.275 ms 1 460 0.00 MB/sec execute 17 sec latency 24299.758 ms 1 460 0.00 MB/sec execute 18 sec latency 25302.514 ms 1 460 0.00 MB/sec execute 19 sec latency 26306.011 ms 1 460 0.00 MB/sec execute 20 sec latency 27307.594 ms 1 460 0.00 MB/sec execute 21 sec latency 28307.924 ms 1 460 0.00 MB/sec execute 22 sec latency 29309.413 ms 1 460 0.00 MB/sec execute 23 sec latency 30309.794 ms 1 460 0.00 MB/sec execute 24 sec latency 31310.022 ms 1 460 0.00 MB/sec execute 25 sec latency 32310.248 ms 1 460 0.00 MB/sec execute 26 sec latency 33310.483 ms 1 460 0.00 MB/sec execute 27 sec latency 34312.312 ms 1 460 0.00 MB/sec execute 28 sec latency 35312.708 ms oleg101-server: oleg101-server.virtnet: executing set_default_debug -1 all 1 460 0.00 MB/sec execute 29 sec latency 36313.651 ms pdsh@oleg101-client: oleg101-server: ssh exited with exit code 1 1 460 0.00 MB/sec execute 30 sec latency 37313.872 ms Started lustre-MDT0000 07:53:10 (1787399590) targets are mounted 07:53:10 (1787399590) facet_failover done 1 460 0.00 MB/sec execute 31 sec latency 38314.180 ms 1 485 0.02 MB/sec execute 32 sec latency 38613.476 ms 1 513 0.05 MB/sec execute 33 sec latency 131.845 ms 1 544 0.09 MB/sec execute 34 sec latency 236.738 ms 1 608 0.14 MB/sec execute 35 sec latency 349.783 ms 1 642 0.14 MB/sec execute 36 sec latency 146.648 ms 1 664 0.13 MB/sec execute 37 sec latency 196.936 ms 1 689 0.13 MB/sec execute 38 sec latency 205.791 ms oleg101-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1 710 0.13 MB/sec execute 39 sec latency 198.733 ms 1 731 0.13 MB/sec execute 40 sec latency 169.071 ms 1 759 0.13 MB/sec execute 41 sec latency 182.208 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 786 0.13 MB/sec execute 42 sec latency 136.836 ms 1 808 0.12 MB/sec execute 43 sec latency 112.669 ms 1 864 0.12 MB/sec execute 44 sec latency 90.064 ms 1 888 0.12 MB/sec execute 45 sec latency 158.346 ms 1 914 0.12 MB/sec execute 46 sec latency 126.081 ms 1 952 0.12 MB/sec execute 47 sec latency 97.402 ms 1 980 0.12 MB/sec execute 48 sec latency 128.812 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2120 1269184 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 1868 1269436 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 44512 3555304 2% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 9792 3594820 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 54304 7150124 1% /mnt/lustre 1 1018 0.13 MB/sec execute 49 sec latency 159.178 ms 1 1061 0.13 MB/sec execute 50 sec latency 109.576 ms 1 1104 0.13 MB/sec execute 51 sec latency 84.138 ms 1 1138 0.13 MB/sec execute 52 sec latency 116.955 ms 1 1172 0.13 MB/sec execute 53 sec latency 153.434 ms 1 1173 0.13 MB/sec execute 54 sec latency 805.124 ms 1 1224 0.13 MB/sec execute 55 sec latency 300.567 ms 1 1262 0.12 MB/sec execute 56 sec latency 94.476 ms 1 1403 0.17 MB/sec execute 57 sec latency 120.465 ms test_26 fail mds2 2 times 1 1465 0.17 MB/sec execute 58 sec latency 67.039 ms 1 1508 0.17 MB/sec execute 59 sec latency 91.837 ms Failing mds2 on oleg101-server 1 1552 0.17 MB/sec execute 60 sec latency 118.089 ms 1 1572 0.16 MB/sec execute 61 sec latency 88.002 ms Stopping /mnt/lustre-mds2 (opts:) on oleg101-server 1 1621 0.16 MB/sec execute 62 sec latency 115.848 ms 1 1680 0.16 MB/sec execute 63 sec latency 112.235 ms 07:53:43 (1787399623) shut down 1 1723 0.16 MB/sec execute 64 sec latency 92.434 ms facet: mds2 facet_host: oleg101-server facet_failover_host: oleg101-server 1 1806 0.16 MB/sec execute 65 sec latency 84.823 ms 1 1881 0.15 MB/sec execute 66 sec latency 72.125 ms 1 1980 0.15 MB/sec execute 67 sec latency 91.330 ms 1 2083 0.15 MB/sec execute 68 sec latency 59.219 ms 1 2168 0.15 MB/sec execute 69 sec latency 67.431 ms 1 2250 0.15 MB/sec execute 70 sec latency 80.484 ms 1 2259 0.15 MB/sec execute 71 sec latency 840.406 ms 1 2259 0.15 MB/sec execute 72 sec latency 1840.646 ms 1 2259 0.15 MB/sec execute 73 sec latency 2840.925 ms 1 2259 0.14 MB/sec execute 74 sec latency 3841.167 ms Failover mds2 to oleg101-server mount facets: mds2 1 2259 0.14 MB/sec execute 75 sec latency 4841.468 ms 1 2259 0.14 MB/sec execute 76 sec latency 5841.981 ms 1 2259 0.14 MB/sec execute 77 sec latency 6842.268 ms 1 2259 0.14 MB/sec execute 78 sec latency 7842.524 ms 1 2259 0.13 MB/sec execute 79 sec latency 8842.928 ms 1 2259 0.13 MB/sec execute 80 sec latency 9844.338 ms 1 2259 0.13 MB/sec execute 81 sec latency 10846.423 ms 1 2259 0.13 MB/sec execute 82 sec latency 11848.106 ms 1 2259 0.13 MB/sec execute 83 sec latency 12848.357 ms Start mds2: mount -t lustre -o localrecov /dev/mapper/mds2_flakey /mnt/lustre-mds2 1 2259 0.13 MB/sec execute 84 sec latency 13851.584 ms 1 2259 0.12 MB/sec execute 85 sec latency 14851.816 ms 1 2259 0.12 MB/sec execute 86 sec latency 15852.336 ms 1 2259 0.12 MB/sec execute 87 sec latency 16852.668 ms 1 2259 0.12 MB/sec execute 88 sec latency 17854.474 ms 1 2259 0.12 MB/sec execute 89 sec latency 18854.715 ms oleg101-server: oleg101-server.virtnet: executing set_default_debug -1 all 1 2259 0.12 MB/sec execute 90 sec latency 19855.270 ms pdsh@oleg101-client: oleg101-server: ssh exited with exit code 1 1 2259 0.12 MB/sec execute 91 sec latency 20855.620 ms Started lustre-MDT0001 07:54:11 (1787399651) targets are mounted 07:54:11 (1787399651) facet_failover done 1 2259 0.12 MB/sec execute 92 sec latency 21862.381 ms 1 2294 0.12 MB/sec execute 93 sec latency 22464.997 ms 1 2348 0.12 MB/sec execute 94 sec latency 93.097 ms 1 2384 0.12 MB/sec execute 95 sec latency 100.515 ms 1 2416 0.12 MB/sec execute 96 sec latency 138.022 ms 1 2452 0.12 MB/sec execute 97 sec latency 134.621 ms 1 2489 0.13 MB/sec execute 98 sec latency 131.665 ms oleg101-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0001-mdc-*.mds_server_uuid 1 2566 0.13 MB/sec execute 99 sec latency 166.705 ms 1 cleanup 100 sec 1 cleanup 101 sec mdc.lustre-MDT0001-mdc-*.mds_server_uuid in FULL state after 0 sec 1 cleanup 102 sec 1 cleanup 103 sec 1 cleanup 104 sec 0 cleanup 105 sec Operation Count AvgLat MaxLat ---------------------------------------- NTCreateX 363 117.252 22464.835 Close 314 134.800 38613.433 Rename 17 92.830 166.675 Unlink 39 27.658 55.545 Qpathinfo 347 15.884 106.846 Qfileinfo 87 2.429 23.053 Qfsinfo 43 4.714 25.400 Sfileinfo 50 73.428 182.192 Find 118 13.453 93.485 WriteX 297 13.663 66.210 ReadX 429 2.827 74.188 Flush 34 66.903 205.773 Throughput 0.128493 MB/sec 1 clients 1 procs max_latency=38613.476 ms stopping dbench on /mnt/lustre at Sat Aug 22 07:54:24 EDT 2026 with return code 0 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished striped dir -i0 -c2 -H crush /mnt/lustre2/d26.replay-dual/run_dbench UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2356 1268948 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 2092 1269212 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 47568 3558440 2% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 3424 3602788 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 50992 7161228 1% /mnt/lustre 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 Sat Aug 22 07:54:34 EDT 2026 waiting for dbench pid 67926 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 8 0.00 MB/sec warmup 1 sec latency 261.368 ms 0 8 0.00 MB/sec warmup 2 sec latency 1285.753 ms 0 8 0.00 MB/sec warmup 3 sec latency 2291.077 ms 1 42 0.39 MB/sec warmup 4 sec latency 120.001 ms 1 91 0.83 MB/sec warmup 5 sec latency 122.949 ms 1 119 0.90 MB/sec warmup 6 sec latency 370.874 ms test_26 fail mds1 3 times 1 139 0.86 MB/sec warmup 7 sec latency 293.050 ms 1 170 0.86 MB/sec warmup 8 sec latency 179.783 ms Failing mds1 on oleg101-server 1 197 0.87 MB/sec warmup 9 sec latency 339.157 ms Stopping /mnt/lustre-mds1 (opts:) on oleg101-server 1 231 0.88 MB/sec warmup 10 sec latency 120.056 ms 1 263 0.90 MB/sec warmup 11 sec latency 165.338 ms 1 306 0.93 MB/sec warmup 12 sec latency 192.104 ms 1 339 0.94 MB/sec warmup 13 sec latency 382.910 ms 1 339 0.87 MB/sec warmup 14 sec latency 1385.886 ms 1 339 0.81 MB/sec warmup 15 sec latency 2386.254 ms 1 339 0.76 MB/sec warmup 16 sec latency 3386.568 ms 1 339 0.72 MB/sec warmup 17 sec latency 4388.312 ms 07:54:52 (1787399692) shut down facet: mds1 facet_host: oleg101-server facet_failover_host: oleg101-server 1 339 0.68 MB/sec warmup 18 sec latency 5388.582 ms 1 339 0.64 MB/sec warmup 19 sec latency 6388.907 ms 1 339 0.00 MB/sec execute 1 sec latency 8393.744 ms 1 339 0.00 MB/sec execute 2 sec latency 9395.580 ms 1 339 0.00 MB/sec execute 3 sec latency 10397.447 ms 1 339 0.00 MB/sec execute 4 sec latency 11399.186 ms 1 339 0.00 MB/sec execute 5 sec latency 12403.650 ms 1 339 0.00 MB/sec execute 6 sec latency 13404.324 ms 1 339 0.00 MB/sec execute 7 sec latency 14407.616 ms Failover mds1 to oleg101-server 1 339 0.00 MB/sec execute 8 sec latency 15416.234 ms mount facets: mds1 1 339 0.00 MB/sec execute 9 sec latency 16416.432 ms 1 339 0.00 MB/sec execute 10 sec latency 17417.103 ms 1 339 0.00 MB/sec execute 11 sec latency 18421.190 ms 1 339 0.00 MB/sec execute 12 sec latency 19421.389 ms 1 339 0.00 MB/sec execute 13 sec latency 20425.326 ms 1 339 0.00 MB/sec execute 14 sec latency 21425.569 ms 1 339 0.00 MB/sec execute 15 sec latency 22429.945 ms 1 339 0.00 MB/sec execute 16 sec latency 23431.303 ms 1 339 0.00 MB/sec execute 17 sec latency 24432.394 ms 1 339 0.00 MB/sec execute 18 sec latency 25432.857 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 339 0.00 MB/sec execute 19 sec latency 26433.120 ms 1 339 0.00 MB/sec execute 20 sec latency 27433.750 ms 1 339 0.00 MB/sec execute 21 sec latency 28435.010 ms 1 339 0.00 MB/sec execute 22 sec latency 29435.330 ms 1 339 0.00 MB/sec execute 23 sec latency 30443.031 ms 1 339 0.00 MB/sec execute 24 sec latency 31444.976 ms 1 339 0.00 MB/sec execute 25 sec latency 32445.198 ms 1 339 0.00 MB/sec execute 26 sec latency 33446.501 ms 1 339 0.00 MB/sec execute 27 sec latency 34447.274 ms oleg101-server: oleg101-server.virtnet: executing set_default_debug -1 all 1 339 0.00 MB/sec execute 28 sec latency 35451.331 ms pdsh@oleg101-client: oleg101-server: ssh exited with exit code 1 1 339 0.00 MB/sec execute 29 sec latency 36451.706 ms Started lustre-MDT0000 07:55:24 (1787399724) targets are mounted 07:55:24 (1787399724) facet_failover done 1 365 0.03 MB/sec execute 30 sec latency 36763.328 ms 1 392 0.05 MB/sec execute 31 sec latency 355.804 ms 1 437 0.10 MB/sec execute 32 sec latency 100.262 ms 1 480 0.13 MB/sec execute 33 sec latency 100.175 ms 1 513 0.16 MB/sec execute 34 sec latency 118.948 ms 1 582 0.22 MB/sec execute 35 sec latency 127.459 ms oleg101-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1 653 0.24 MB/sec execute 36 sec latency 84.124 ms 1 692 0.24 MB/sec execute 37 sec latency 120.843 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 718 0.24 MB/sec execute 38 sec latency 147.539 ms 1 743 0.23 MB/sec execute 39 sec latency 139.986 ms 1 781 0.23 MB/sec execute 40 sec latency 117.689 ms 1 815 0.22 MB/sec execute 41 sec latency 125.218 ms 1 868 0.22 MB/sec execute 42 sec latency 113.289 ms 1 902 0.22 MB/sec execute 43 sec latency 120.129 ms 1 964 0.22 MB/sec execute 44 sec latency 87.738 ms 1 1035 0.24 MB/sec execute 45 sec latency 88.152 ms 1 1035 0.23 MB/sec execute 46 sec latency 1092.611 ms tar: Unexpected EOF in archive tar: Unexpected EOF in archive 1 1084 0.23 MB/sec execute 47 sec latency 1202.063 ms 1 1139 0.22 MB/sec execute 48 sec latency 70.887 ms 1 1182 0.22 MB/sec execute 49 sec latency 124.892 ms 1 1223 0.22 MB/sec execute 50 sec latency 125.713 ms 1 1252 0.21 MB/sec execute 51 sec latency 135.008 ms 1 1380 0.26 MB/sec execute 52 sec latency 170.523 ms 1 1421 0.26 MB/sec execute 53 sec latency 139.196 ms 1 1474 0.25 MB/sec execute 54 sec latency 76.379 ms 1 1522 0.25 MB/sec execute 55 sec latency 192.054 ms 1 1603 0.25 MB/sec execute 56 sec latency 59.114 ms tar: Error is not recoverable: exiting now dbench killed by signal 15 stopping dbench on /mnt/lustre at Sat Aug 22 07:55:50 EDT 2026 with return code 0 67926 pts/0 S+ 0:00 dbench -c client.txt 1 -D /mnt/lustre2/d26.replay-dual/run_dbench -t 100 killed dbench main pid 67926 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished