== replay-dual test 26: dbench and tar with mds failover ========================================================== 18:11:25 (1786831885) Starting client oleg436-client.virtnet: -o user_xattr,flock 192.168.204.136@tcp:/lustre /mnt/lustre Started clients oleg436-client.virtnet: 192.168.204.136@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 65641 Started dbench loop with 65646 striped dir -i0 -c2 -H crush /mnt/lustre/d26.replay-dual/run_tar striped dir -i0 -c2 -H fnv_1a_64 /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 1980 1269324 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 1804 1269500 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 1564 3605456 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 13832 3584872 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 15396 7190328 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 Sat Aug 15 18:11:30 EDT 2026 waiting for dbench pid 65722 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 15 0.07 MB/sec warmup 1 sec latency 28.571 ms 1 59 1.21 MB/sec warmup 2 sec latency 134.905 ms 1 102 1.57 MB/sec warmup 3 sec latency 173.224 ms 1 130 1.44 MB/sec warmup 4 sec latency 194.961 ms 1 157 1.30 MB/sec warmup 5 sec latency 164.650 ms 1 177 1.19 MB/sec warmup 6 sec latency 522.265 ms 1 196 1.12 MB/sec warmup 7 sec latency 479.313 ms 1 229 1.10 MB/sec warmup 8 sec latency 153.831 ms 1 271 1.13 MB/sec warmup 9 sec latency 129.542 ms test_26 fail mds1 1 times 1 305 1.12 MB/sec warmup 10 sec latency 175.488 ms Failing mds1 on oleg436-server 1 340 1.11 MB/sec warmup 11 sec latency 146.167 ms Stopping /mnt/lustre-mds1 (opts:) on oleg436-server 1 377 1.11 MB/sec warmup 12 sec latency 99.952 ms 1 420 1.14 MB/sec warmup 13 sec latency 145.262 ms 1 421 1.06 MB/sec warmup 14 sec latency 998.588 ms 1 421 0.99 MB/sec warmup 15 sec latency 1998.805 ms 18:11:46 (1786831906) shut down facet: mds1 facet_host: oleg436-server facet_failover_host: oleg436-server 1 421 0.93 MB/sec warmup 16 sec latency 3000.320 ms 1 421 0.87 MB/sec warmup 17 sec latency 4002.364 ms 1 421 0.82 MB/sec warmup 18 sec latency 5002.562 ms 1 421 0.78 MB/sec warmup 19 sec latency 6002.971 ms 1 421 0.00 MB/sec execute 1 sec latency 8003.487 ms 1 421 0.00 MB/sec execute 2 sec latency 9005.321 ms 1 421 0.00 MB/sec execute 3 sec latency 10006.166 ms 1 421 0.00 MB/sec execute 4 sec latency 11006.828 ms 1 421 0.00 MB/sec execute 5 sec latency 12007.547 ms 1 421 0.00 MB/sec execute 6 sec latency 13013.198 ms Failover mds1 to oleg436-server mount facets: mds1 1 421 0.00 MB/sec execute 7 sec latency 14013.867 ms 1 421 0.00 MB/sec execute 8 sec latency 15017.187 ms 1 421 0.00 MB/sec execute 9 sec latency 16017.738 ms 1 421 0.00 MB/sec execute 10 sec latency 17018.527 ms 1 421 0.00 MB/sec execute 11 sec latency 18020.539 ms 1 421 0.00 MB/sec execute 12 sec latency 19020.849 ms 1 421 0.00 MB/sec execute 13 sec latency 20021.026 ms 1 421 0.00 MB/sec execute 14 sec latency 21021.176 ms 1 421 0.00 MB/sec execute 15 sec latency 22024.172 ms 1 421 0.00 MB/sec execute 16 sec latency 23024.419 ms 1 421 0.00 MB/sec execute 17 sec latency 24039.149 ms 1 421 0.00 MB/sec execute 18 sec latency 25039.350 ms 1 421 0.00 MB/sec execute 19 sec latency 26040.806 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 421 0.00 MB/sec execute 20 sec latency 27041.387 ms 1 421 0.00 MB/sec execute 21 sec latency 28042.007 ms 1 421 0.00 MB/sec execute 22 sec latency 29064.239 ms 1 421 0.00 MB/sec execute 23 sec latency 30065.260 ms 1 421 0.00 MB/sec execute 24 sec latency 31066.512 ms 1 421 0.00 MB/sec execute 25 sec latency 32067.114 ms 1 421 0.00 MB/sec execute 26 sec latency 33068.051 ms oleg436-server: oleg436-server.virtnet: executing set_default_debug -1 all 1 421 0.00 MB/sec execute 27 sec latency 34068.772 ms 1 421 0.00 MB/sec execute 28 sec latency 35070.664 ms pdsh@oleg436-client: oleg436-server: ssh exited with exit code 1 1 421 0.00 MB/sec execute 29 sec latency 36071.251 ms Started lustre-MDT0000 18:12:20 (1786831940) targets are mounted 18:12:20 (1786831940) facet_failover done 1 421 0.00 MB/sec execute 30 sec latency 37073.015 ms 1 446 0.03 MB/sec execute 31 sec latency 37415.714 ms 1 485 0.06 MB/sec execute 32 sec latency 135.044 ms 1 511 0.09 MB/sec execute 33 sec latency 154.459 ms 1 552 0.12 MB/sec execute 34 sec latency 198.871 ms 1 616 0.17 MB/sec execute 35 sec latency 407.046 ms 1 655 0.17 MB/sec execute 36 sec latency 181.150 ms oleg436-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 689 0.17 MB/sec execute 37 sec latency 130.799 ms 1 713 0.17 MB/sec execute 38 sec latency 159.342 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 736 0.17 MB/sec execute 39 sec latency 187.392 ms 1 769 0.16 MB/sec execute 40 sec latency 109.760 ms 1 801 0.16 MB/sec execute 41 sec latency 165.142 ms 1 848 0.16 MB/sec execute 42 sec latency 136.343 ms 1 893 0.16 MB/sec execute 43 sec latency 74.493 ms 1 933 0.16 MB/sec execute 44 sec latency 92.458 ms 1 967 0.15 MB/sec execute 45 sec latency 151.281 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 10500 3593824 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 40052 3560460 2% /mnt/lustre[OST:1] filesystem_summary: 7666232 50552 7154284 1% /mnt/lustre 1 988 0.15 MB/sec execute 46 sec latency 145.112 ms 1 1040 0.17 MB/sec execute 47 sec latency 134.874 ms 1 1073 0.17 MB/sec execute 48 sec latency 125.184 ms 1 1105 0.16 MB/sec execute 49 sec latency 120.052 ms 1 1145 0.16 MB/sec execute 50 sec latency 99.212 ms 1 1172 0.16 MB/sec execute 51 sec latency 460.333 ms 1 1182 0.16 MB/sec execute 52 sec latency 926.812 ms 1 1216 0.15 MB/sec execute 53 sec latency 102.780 ms 1 1233 0.15 MB/sec execute 54 sec latency 201.723 ms 1 1262 0.15 MB/sec execute 55 sec latency 190.001 ms 1 1388 0.20 MB/sec execute 56 sec latency 107.628 ms test_26 fail mds2 2 times 1 1412 0.20 MB/sec execute 57 sec latency 156.413 ms 1 1445 0.19 MB/sec execute 58 sec latency 105.604 ms Failing mds2 on oleg436-server 1 1474 0.19 MB/sec execute 59 sec latency 140.969 ms 1 1499 0.19 MB/sec execute 60 sec latency 215.355 ms Stopping /mnt/lustre-mds2 (opts:) on oleg436-server 1 1534 0.18 MB/sec execute 61 sec latency 104.298 ms 1 1568 0.18 MB/sec execute 62 sec latency 102.684 ms 1 1605 0.18 MB/sec execute 63 sec latency 144.111 ms 1 1649 0.18 MB/sec execute 64 sec latency 125.777 ms 18:12:56 (1786831976) shut down facet: mds2 facet_host: oleg436-server facet_failover_host: oleg436-server 1 1686 0.17 MB/sec execute 65 sec latency 145.785 ms 1 1727 0.17 MB/sec execute 66 sec latency 164.994 ms 1 1797 0.17 MB/sec execute 67 sec latency 144.188 ms 1 1855 0.17 MB/sec execute 68 sec latency 108.039 ms 1 1901 0.17 MB/sec execute 69 sec latency 126.234 ms 1 1974 0.17 MB/sec execute 70 sec latency 126.665 ms 1 2054 0.17 MB/sec execute 71 sec latency 79.932 ms 1 2108 0.16 MB/sec execute 72 sec latency 84.692 ms 1 2164 0.16 MB/sec execute 73 sec latency 111.034 ms 1 2245 0.16 MB/sec execute 74 sec latency 108.058 ms 1 2259 0.16 MB/sec execute 75 sec latency 871.608 ms Failover mds2 to oleg436-server mount facets: mds2 1 2259 0.16 MB/sec execute 76 sec latency 1871.859 ms 1 2259 0.15 MB/sec execute 77 sec latency 2872.150 ms 1 2259 0.15 MB/sec execute 78 sec latency 3872.410 ms 1 2259 0.15 MB/sec execute 79 sec latency 4872.754 ms 1 2259 0.15 MB/sec execute 80 sec latency 5873.067 ms 1 2259 0.15 MB/sec execute 81 sec latency 6873.741 ms 1 2259 0.15 MB/sec execute 82 sec latency 7875.038 ms 1 2259 0.14 MB/sec execute 83 sec latency 8876.141 ms 1 2259 0.14 MB/sec execute 84 sec latency 9879.050 ms 1 2259 0.14 MB/sec execute 85 sec latency 10879.311 ms Start mds2: mount -t lustre -o localrecov /dev/mapper/mds2_flakey /mnt/lustre-mds2 1 2259 0.14 MB/sec execute 86 sec latency 11879.636 ms 1 2259 0.14 MB/sec execute 87 sec latency 12879.931 ms 1 2259 0.14 MB/sec execute 88 sec latency 13880.137 ms 1 2259 0.13 MB/sec execute 89 sec latency 14880.392 ms 1 2259 0.13 MB/sec execute 90 sec latency 15882.465 ms 1 2259 0.13 MB/sec execute 91 sec latency 16887.460 ms 1 2259 0.13 MB/sec execute 92 sec latency 17887.717 ms oleg436-server: oleg436-server.virtnet: executing set_default_debug -1 all 1 2259 0.13 MB/sec execute 93 sec latency 18890.764 ms pdsh@oleg436-client: oleg436-server: ssh exited with exit code 1 1 2259 0.13 MB/sec execute 94 sec latency 19891.218 ms Started lustre-MDT0001 1 2264 0.13 MB/sec execute 95 sec latency 20709.889 ms 18:13:26 (1786832006) targets are mounted 18:13:26 (1786832006) facet_failover done 1 2345 0.14 MB/sec execute 96 sec latency 156.008 ms 1 2373 0.13 MB/sec execute 97 sec latency 107.619 ms 1 2400 0.13 MB/sec execute 98 sec latency 134.738 ms 1 2427 0.13 MB/sec execute 99 sec latency 129.040 ms 1 cleanup 100 sec 1 cleanup 101 sec 1 cleanup 102 sec oleg436-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0001-mdc-*.mds_server_uuid 1475 0 1 cleanup 103 sec 1 cleanup 104 sec 0 cleanup 104 sec Operation Count AvgLat MaxLat ---------------------------------------- NTCreateX 356 224.338 37415.629 Close 306 12.779 53.615 Rename 14 120.554 189.963 Unlink 36 34.972 93.578 Qpathinfo 325 18.430 125.151 Qfileinfo 88 2.489 20.703 Qfsinfo 41 4.603 30.587 Sfileinfo 44 77.665 126.507 Find 109 12.900 63.547 WriteX 312 15.259 126.654 ReadX 382 2.931 92.972 Flush 33 62.291 187.369 Throughput 0.13343 MB/sec 1 clients 1 procs max_latency=37415.714 ms stopping dbench on /mnt/lustre at Sat Aug 15 18:13:35 EDT 2026 with return code 0 mdc.lustre-MDT0001-mdc-*.mds_server_uuid in FULL state after 0 sec clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished striped dir -i0 -c2 -H fnv_1a_64 /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 2360 1268944 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 2120 1269184 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 14880 3586644 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 20052 3586140 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 34932 7172784 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 Sat Aug 15 18:13:44 EDT 2026 waiting for dbench pid 67882 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 10 0.00 MB/sec warmup 1 sec latency 7.104 ms 1 63 1.34 MB/sec warmup 2 sec latency 128.011 ms 1 121 1.82 MB/sec warmup 3 sec latency 144.109 ms 1 155 1.63 MB/sec warmup 4 sec latency 146.006 ms 1 164 1.36 MB/sec warmup 5 sec latency 841.993 ms 1 174 1.17 MB/sec warmup 6 sec latency 1369.103 ms 1 193 1.09 MB/sec warmup 7 sec latency 448.824 ms 1 224 1.07 MB/sec warmup 8 sec latency 163.460 ms test_26 fail mds1 3 times 1 264 1.10 MB/sec warmup 9 sec latency 156.242 ms 1 297 1.09 MB/sec warmup 10 sec latency 152.250 ms Failing mds1 on oleg436-server 1 323 1.06 MB/sec warmup 11 sec latency 231.839 ms 1 357 1.06 MB/sec warmup 12 sec latency 236.300 ms Stopping /mnt/lustre-mds1 (opts:) on oleg436-server 1 393 1.06 MB/sec warmup 13 sec latency 124.394 ms 1 412 1.04 MB/sec warmup 14 sec latency 523.613 ms 1 412 0.97 MB/sec warmup 15 sec latency 1524.492 ms 1 412 0.91 MB/sec warmup 16 sec latency 2524.701 ms 1 412 0.86 MB/sec warmup 17 sec latency 3525.211 ms 1 412 0.81 MB/sec warmup 18 sec latency 4525.479 ms 1 412 0.77 MB/sec warmup 19 sec latency 5525.749 ms 1 412 0.00 MB/sec execute 1 sec latency 7546.836 ms 18:14:06 (1786832046) shut down facet: mds1 facet_host: oleg436-server facet_failover_host: oleg436-server 1 412 0.00 MB/sec execute 2 sec latency 8549.545 ms 1 412 0.00 MB/sec execute 3 sec latency 9549.797 ms 1 412 0.00 MB/sec execute 4 sec latency 10553.296 ms 1 412 0.00 MB/sec execute 5 sec latency 11553.571 ms 1 412 0.00 MB/sec execute 6 sec latency 12553.830 ms 1 412 0.00 MB/sec execute 7 sec latency 13555.036 ms 1 412 0.00 MB/sec execute 8 sec latency 14555.417 ms 1 412 0.00 MB/sec execute 9 sec latency 15555.646 ms 1 412 0.00 MB/sec execute 10 sec latency 16555.852 ms 1 412 0.00 MB/sec execute 11 sec latency 17556.287 ms 1 412 0.00 MB/sec execute 12 sec latency 18556.809 ms Failover mds1 to oleg436-server mount facets: mds1 1 412 0.00 MB/sec execute 13 sec latency 19557.429 ms 1 412 0.00 MB/sec execute 14 sec latency 20558.374 ms 1 412 0.00 MB/sec execute 15 sec latency 21561.787 ms 1 412 0.00 MB/sec execute 16 sec latency 22562.082 ms 1 412 0.00 MB/sec execute 17 sec latency 23565.297 ms 1 412 0.00 MB/sec execute 18 sec latency 24566.843 ms 1 412 0.00 MB/sec execute 19 sec latency 25567.504 ms 1 412 0.00 MB/sec execute 20 sec latency 26568.628 ms 1 412 0.00 MB/sec execute 21 sec latency 27568.881 ms 1 412 0.00 MB/sec execute 22 sec latency 28570.381 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 412 0.00 MB/sec execute 23 sec latency 29571.071 ms 1 412 0.00 MB/sec execute 24 sec latency 30572.556 ms 1 412 0.00 MB/sec execute 25 sec latency 31573.953 ms 1 412 0.00 MB/sec execute 26 sec latency 32574.309 ms 1 412 0.00 MB/sec execute 27 sec latency 33575.509 ms 1 412 0.00 MB/sec execute 28 sec latency 34575.929 ms 1 412 0.00 MB/sec execute 29 sec latency 35576.345 ms 1 412 0.00 MB/sec execute 30 sec latency 36576.822 ms 1 412 0.00 MB/sec execute 31 sec latency 37577.436 ms 1 412 0.00 MB/sec execute 32 sec latency 38577.688 ms 1 412 0.00 MB/sec execute 33 sec latency 39577.916 ms 1 412 0.00 MB/sec execute 34 sec latency 40578.214 ms 1 412 0.00 MB/sec execute 35 sec latency 41578.454 ms oleg436-server: oleg436-server.virtnet: executing set_default_debug -1 all 1 412 0.00 MB/sec execute 36 sec latency 42582.700 ms pdsh@oleg436-client: oleg436-server: ssh exited with exit code 1 1 412 0.00 MB/sec execute 37 sec latency 43583.120 ms Started lustre-MDT0000 18:14:43 (1786832083) targets are mounted 18:14:43 (1786832083) facet_failover done 1 421 0.01 MB/sec execute 38 sec latency 44093.384 ms 1 454 0.03 MB/sec execute 39 sec latency 153.231 ms 1 485 0.06 MB/sec execute 40 sec latency 142.909 ms 1 511 0.08 MB/sec execute 41 sec latency 199.098 ms 1 569 0.11 MB/sec execute 42 sec latency 175.817 ms 1 612 0.15 MB/sec execute 43 sec latency 117.812 ms 1 661 0.15 MB/sec execute 44 sec latency 142.732 ms 1 689 0.15 MB/sec execute 45 sec latency 191.753 ms oleg436-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 725 0.15 MB/sec execute 46 sec latency 106.104 ms 1 743 0.14 MB/sec execute 47 sec latency 148.522 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 776 0.14 MB/sec execute 48 sec latency 133.195 ms 1 799 0.14 MB/sec execute 49 sec latency 185.742 ms 1 825 0.14 MB/sec execute 50 sec latency 120.839 ms 1 869 0.14 MB/sec execute 51 sec latency 126.321 ms 1 884 0.14 MB/sec execute 52 sec latency 416.353 ms 1 888 0.13 MB/sec execute 53 sec latency 1064.073 ms 1 918 0.13 MB/sec execute 54 sec latency 145.949 ms 1 949 0.13 MB/sec execute 55 sec latency 108.402 ms 1 981 0.13 MB/sec execute 56 sec latency 115.398 ms 1 1041 0.15 MB/sec execute 57 sec latency 106.623 ms tar: Unexpected EOF in archive tar: Unexpected EOF in archive 1 1084 0.14 MB/sec execute 58 sec latency 78.043 ms 1 1139 0.14 MB/sec execute 59 sec latency 98.390 ms 1 1180 0.14 MB/sec execute 60 sec latency 121.916 ms 1 1229 0.14 MB/sec execute 61 sec latency 81.580 ms 1 1262 0.14 MB/sec execute 62 sec latency 112.429 ms 1 1389 0.18 MB/sec execute 63 sec latency 92.619 ms 1 1417 0.18 MB/sec execute 64 sec latency 187.605 ms 1 1461 0.18 MB/sec execute 65 sec latency 81.581 ms 1 1497 0.17 MB/sec execute 66 sec latency 257.636 ms 1 1532 0.17 MB/sec execute 67 sec latency 107.887 ms 1 1590 0.17 MB/sec execute 68 sec latency 91.247 ms tar: Error is not recoverable: exiting now dbench killed by signal 15 stopping dbench on /mnt/lustre at Sat Aug 15 18:15:13 EDT 2026 with return code 0 67882 pts/0 S+ 0:00 dbench -c client.txt 1 -D /mnt/lustre2/d26.replay-dual/run_dbench -t 100 killed dbench main pid 67882 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished