== replay-dual test 26: dbench and tar with mds failover ========================================================== 04:37:31 (1787387851) Starting client oleg208-client.virtnet: -o user_xattr,flock 192.168.202.108@tcp:/lustre /mnt/lustre Started clients oleg208-client.virtnet: 192.168.202.108@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 65678 Started dbench loop with 65679 striped dir -i0 -c2 -H crush2 /mnt/lustre2/d26.replay-dual/run_dbench striped dir -i0 -c2 -H fnv_1a_64 /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 1968 1269336 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 1744 1269560 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 1564 3605456 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 1544 3580680 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 3108 7186136 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 22 04:37:37 EDT 2026 waiting for dbench pid 65743 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 42.955 ms 1 70 1.57 MB/sec warmup 2 sec latency 121.261 ms 1 113 1.74 MB/sec warmup 3 sec latency 156.345 ms 1 140 1.50 MB/sec warmup 4 sec latency 194.024 ms 1 172 1.41 MB/sec warmup 5 sec latency 180.547 ms 1 188 1.26 MB/sec warmup 6 sec latency 439.390 ms 1 215 1.19 MB/sec warmup 7 sec latency 380.905 ms 1 269 1.26 MB/sec warmup 8 sec latency 88.614 ms 1 313 1.27 MB/sec warmup 9 sec latency 99.356 ms test_26 fail mds1 1 times 1 350 1.25 MB/sec warmup 10 sec latency 122.181 ms Failing mds1 on oleg208-server 1 389 1.26 MB/sec warmup 11 sec latency 113.815 ms 1 425 1.24 MB/sec warmup 12 sec latency 160.288 ms Stopping /mnt/lustre-mds1 (opts:) on oleg208-server 1 461 1.24 MB/sec warmup 13 sec latency 193.060 ms 1 469 1.17 MB/sec warmup 14 sec latency 887.961 ms 1 469 1.09 MB/sec warmup 15 sec latency 1888.290 ms 04:37:53 (1787387873) shut down facet: mds1 facet_host: oleg208-server facet_failover_host: oleg208-server 1 469 1.03 MB/sec warmup 16 sec latency 2888.517 ms 1 469 0.97 MB/sec warmup 17 sec latency 3889.516 ms 1 469 0.91 MB/sec warmup 18 sec latency 4889.818 ms 1 469 0.86 MB/sec warmup 19 sec latency 5890.045 ms 1 469 0.00 MB/sec execute 1 sec latency 7893.093 ms 1 469 0.00 MB/sec execute 2 sec latency 8893.503 ms 1 469 0.00 MB/sec execute 3 sec latency 9893.699 ms 1 469 0.00 MB/sec execute 4 sec latency 10897.115 ms 1 469 0.00 MB/sec execute 5 sec latency 11897.295 ms Failover mds1 to oleg208-server 1 469 0.00 MB/sec execute 6 sec latency 12898.364 ms mount facets: mds1 1 469 0.00 MB/sec execute 7 sec latency 13898.748 ms 1 469 0.00 MB/sec execute 8 sec latency 14898.937 ms 1 469 0.00 MB/sec execute 9 sec latency 15899.982 ms 1 469 0.00 MB/sec execute 10 sec latency 16900.354 ms 1 469 0.00 MB/sec execute 11 sec latency 17900.827 ms 1 469 0.00 MB/sec execute 12 sec latency 18903.452 ms 1 469 0.00 MB/sec execute 13 sec latency 19905.760 ms 1 469 0.00 MB/sec execute 14 sec latency 20906.058 ms 1 469 0.00 MB/sec execute 15 sec latency 21907.770 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 469 0.00 MB/sec execute 16 sec latency 22907.947 ms 1 469 0.00 MB/sec execute 17 sec latency 23908.229 ms 1 469 0.00 MB/sec execute 18 sec latency 24909.244 ms 1 469 0.00 MB/sec execute 19 sec latency 25909.768 ms 1 469 0.00 MB/sec execute 20 sec latency 26912.361 ms 1 469 0.00 MB/sec execute 21 sec latency 27912.651 ms 1 469 0.00 MB/sec execute 22 sec latency 28914.304 ms 1 469 0.00 MB/sec execute 23 sec latency 29919.569 ms 1 469 0.00 MB/sec execute 24 sec latency 30919.794 ms oleg208-server: oleg208-server.virtnet: executing set_default_debug -1 all 1 469 0.00 MB/sec execute 25 sec latency 31921.384 ms 1 469 0.00 MB/sec execute 26 sec latency 32922.132 ms pdsh@oleg208-client: oleg208-server: ssh exited with exit code 1 1 469 0.00 MB/sec execute 27 sec latency 33922.801 ms Started lustre-MDT0000 04:38:25 (1787387905) targets are mounted 04:38:25 (1787387905) facet_failover done 1 469 0.00 MB/sec execute 28 sec latency 34926.373 ms 1 503 0.04 MB/sec execute 29 sec latency 34955.408 ms 1 531 0.07 MB/sec execute 30 sec latency 188.649 ms 1 557 0.09 MB/sec execute 31 sec latency 569.892 ms 1 612 0.14 MB/sec execute 32 sec latency 97.576 ms 1 648 0.14 MB/sec execute 33 sec latency 188.157 ms 1 674 0.14 MB/sec execute 34 sec latency 127.622 ms 1 703 0.14 MB/sec execute 35 sec latency 159.117 ms oleg208-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1 723 0.14 MB/sec execute 36 sec latency 186.536 ms 1 746 0.13 MB/sec execute 37 sec latency 171.178 ms 1 769 0.13 MB/sec execute 38 sec latency 164.536 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 784 0.13 MB/sec execute 39 sec latency 282.290 ms 1 810 0.13 MB/sec execute 40 sec latency 140.588 ms 1 845 0.13 MB/sec execute 41 sec latency 250.144 ms 1 873 0.12 MB/sec execute 42 sec latency 134.652 ms 1 888 0.12 MB/sec execute 43 sec latency 212.197 ms 1 910 0.12 MB/sec execute 44 sec latency 147.934 ms 1 926 0.12 MB/sec execute 45 sec latency 193.051 ms 1 959 0.12 MB/sec execute 46 sec latency 123.886 ms 1 983 0.12 MB/sec execute 47 sec latency 154.673 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2088 1269216 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 1860 1269444 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 12460 3592380 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 37724 3561336 2% /mnt/lustre[OST:1] filesystem_summary: 7666232 50184 7153716 1% /mnt/lustre 1 999 0.12 MB/sec execute 48 sec latency 195.998 ms 1 1040 0.13 MB/sec execute 49 sec latency 126.039 ms 1 1074 0.13 MB/sec execute 50 sec latency 132.998 ms 1 1118 0.13 MB/sec execute 51 sec latency 114.865 ms 1 1147 0.13 MB/sec execute 52 sec latency 129.115 ms 1 1172 0.12 MB/sec execute 53 sec latency 371.437 ms 1 1181 0.12 MB/sec execute 54 sec latency 937.264 ms 1 1218 0.12 MB/sec execute 55 sec latency 136.274 ms 1 1251 0.12 MB/sec execute 56 sec latency 132.003 ms 1 1318 0.13 MB/sec execute 57 sec latency 137.533 ms 1 1406 0.16 MB/sec execute 58 sec latency 95.852 ms test_26 fail mds2 2 times 1 1474 0.16 MB/sec execute 59 sec latency 64.995 ms 1 1504 0.16 MB/sec execute 60 sec latency 137.806 ms Failing mds2 on oleg208-server 1 1538 0.16 MB/sec execute 61 sec latency 128.607 ms Stopping /mnt/lustre-mds2 (opts:) on oleg208-server 1 1574 0.16 MB/sec execute 62 sec latency 66.441 ms 1 1627 0.15 MB/sec execute 63 sec latency 100.863 ms 1 1689 0.15 MB/sec execute 64 sec latency 88.175 ms 04:39:02 (1787387942) shut down facet: mds2 facet_host: oleg208-server facet_failover_host: oleg208-server 1 1770 0.15 MB/sec execute 65 sec latency 63.627 ms 1 1830 0.15 MB/sec execute 66 sec latency 69.489 ms 1 1884 0.15 MB/sec execute 67 sec latency 95.488 ms 1 1978 0.15 MB/sec execute 68 sec latency 55.546 ms 1 2061 0.15 MB/sec execute 69 sec latency 79.620 ms 1 2152 0.15 MB/sec execute 70 sec latency 54.192 ms 1 2198 0.15 MB/sec execute 71 sec latency 83.286 ms 1 2259 0.14 MB/sec execute 72 sec latency 194.276 ms 1 2259 0.14 MB/sec execute 73 sec latency 1200.921 ms 1 2259 0.14 MB/sec execute 74 sec latency 2201.251 ms Failover mds2 to oleg208-server mount facets: mds2 1 2259 0.14 MB/sec execute 75 sec latency 3201.750 ms 1 2259 0.14 MB/sec execute 76 sec latency 4202.062 ms 1 2259 0.13 MB/sec execute 77 sec latency 5202.592 ms 1 2259 0.13 MB/sec execute 78 sec latency 6203.690 ms 1 2259 0.13 MB/sec execute 79 sec latency 7203.979 ms 1 2259 0.13 MB/sec execute 80 sec latency 8204.289 ms 1 2259 0.13 MB/sec execute 81 sec latency 9208.613 ms 1 2259 0.13 MB/sec execute 82 sec latency 10210.654 ms 1 2259 0.12 MB/sec execute 83 sec latency 11210.928 ms 1 2259 0.12 MB/sec execute 84 sec latency 12216.971 ms Start mds2: mount -t lustre -o localrecov /dev/mapper/mds2_flakey /mnt/lustre-mds2 1 2259 0.12 MB/sec execute 85 sec latency 13217.929 ms 1 2259 0.12 MB/sec execute 86 sec latency 14218.189 ms 1 2259 0.12 MB/sec execute 87 sec latency 15218.885 ms 1 2259 0.12 MB/sec execute 88 sec latency 16219.637 ms 1 2259 0.12 MB/sec execute 89 sec latency 17219.931 ms 1 2259 0.11 MB/sec execute 90 sec latency 18223.993 ms oleg208-server: oleg208-server.virtnet: executing set_default_debug -1 all 1 2259 0.11 MB/sec execute 91 sec latency 19225.275 ms pdsh@oleg208-client: oleg208-server: ssh exited with exit code 1 1 2259 0.11 MB/sec execute 92 sec latency 20236.698 ms 1 2259 0.11 MB/sec execute 93 sec latency 21240.988 ms Started lustre-MDT0001 04:39:30 (1787387970) targets are mounted 04:39:30 (1787387970) facet_failover done 1 2262 0.11 MB/sec execute 94 sec latency 22199.280 ms 1 2333 0.12 MB/sec execute 95 sec latency 68.465 ms 1 2358 0.12 MB/sec execute 96 sec latency 127.242 ms 1 2396 0.12 MB/sec execute 97 sec latency 103.123 ms 1 2424 0.12 MB/sec execute 98 sec latency 106.687 ms 1 2453 0.12 MB/sec execute 99 sec latency 124.221 ms 1 cleanup 100 sec oleg208-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0001-mdc-*.mds_server_uuid 1 cleanup 101 sec 1 cleanup 102 sec 1 cleanup 103 sec mdc.lustre-MDT0001-mdc-*.mds_server_uuid in FULL state after 0 sec 1 cleanup 104 sec 0 cleanup 105 sec Operation Count AvgLat MaxLat ---------------------------------------- NTCreateX 351 224.217 34955.386 Close 300 13.112 77.700 Rename 14 111.865 282.261 Unlink 36 30.541 58.133 Qpathinfo 325 18.354 147.796 Qfileinfo 84 2.473 15.367 Qfsinfo 41 7.176 60.166 Sfileinfo 47 86.713 189.053 Find 110 13.614 50.366 WriteX 286 16.899 128.585 ReadX 383 3.451 145.007 Flush 34 59.428 193.027 Throughput 0.117814 MB/sec 1 clients 1 procs max_latency=34955.408 ms stopping dbench on /mnt/lustre at Sat Aug 22 04:39:42 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 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 2356 1268948 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 2092 1269212 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 2576 3603872 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 20088 3586136 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 22664 7190008 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 22 04:39:51 EDT 2026 waiting for dbench pid 67933 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 48.416 ms 1 55 1.08 MB/sec warmup 2 sec latency 122.993 ms 1 91 1.40 MB/sec warmup 3 sec latency 256.717 ms 1 91 1.05 MB/sec warmup 4 sec latency 1257.109 ms 1 105 0.98 MB/sec warmup 5 sec latency 1919.773 ms 1 121 0.91 MB/sec warmup 6 sec latency 296.698 ms 1 147 0.89 MB/sec warmup 7 sec latency 204.063 ms 1 173 0.88 MB/sec warmup 8 sec latency 167.625 ms test_26 fail mds1 3 times 1 193 0.85 MB/sec warmup 9 sec latency 442.310 ms 1 224 0.86 MB/sec warmup 10 sec latency 160.248 ms Failing mds1 on oleg208-server 1 255 0.87 MB/sec warmup 11 sec latency 179.420 ms 1 287 0.89 MB/sec warmup 12 sec latency 170.895 ms Stopping /mnt/lustre-mds1 (opts:) on oleg208-server 1 306 0.86 MB/sec warmup 13 sec latency 270.661 ms 1 339 0.87 MB/sec warmup 14 sec latency 167.724 ms 1 339 0.81 MB/sec warmup 15 sec latency 1109.489 ms 1 339 0.76 MB/sec warmup 16 sec latency 2109.748 ms 04:40:08 (1787388008) shut down facet: mds1 facet_host: oleg208-server facet_failover_host: oleg208-server 1 339 0.72 MB/sec warmup 17 sec latency 3111.668 ms 1 339 0.68 MB/sec warmup 18 sec latency 4111.895 ms 1 339 0.64 MB/sec warmup 19 sec latency 5113.346 ms 1 339 0.00 MB/sec execute 1 sec latency 7115.586 ms 1 339 0.00 MB/sec execute 2 sec latency 8115.855 ms 1 339 0.00 MB/sec execute 3 sec latency 9116.550 ms 1 339 0.00 MB/sec execute 4 sec latency 10116.839 ms 1 339 0.00 MB/sec execute 5 sec latency 11117.215 ms 1 339 0.00 MB/sec execute 6 sec latency 12117.441 ms Failover mds1 to oleg208-server mount facets: mds1 1 339 0.00 MB/sec execute 7 sec latency 13117.552 ms 1 339 0.00 MB/sec execute 8 sec latency 14118.694 ms 1 339 0.00 MB/sec execute 9 sec latency 15119.209 ms 1 339 0.00 MB/sec execute 10 sec latency 16120.609 ms 1 339 0.00 MB/sec execute 11 sec latency 17121.523 ms 1 339 0.00 MB/sec execute 12 sec latency 18124.152 ms 1 339 0.00 MB/sec execute 13 sec latency 19124.594 ms 1 339 0.00 MB/sec execute 14 sec latency 20140.921 ms 1 339 0.00 MB/sec execute 15 sec latency 21147.913 ms 1 339 0.00 MB/sec execute 16 sec latency 22150.819 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 339 0.00 MB/sec execute 17 sec latency 23153.449 ms 1 339 0.00 MB/sec execute 18 sec latency 24153.937 ms 1 339 0.00 MB/sec execute 19 sec latency 25155.110 ms 1 339 0.00 MB/sec execute 20 sec latency 26157.092 ms 1 339 0.00 MB/sec execute 21 sec latency 27157.489 ms 1 339 0.00 MB/sec execute 22 sec latency 28157.743 ms 1 339 0.00 MB/sec execute 23 sec latency 29158.423 ms 1 339 0.00 MB/sec execute 24 sec latency 30158.783 ms 1 339 0.00 MB/sec execute 25 sec latency 31158.964 ms 1 339 0.00 MB/sec execute 26 sec latency 32159.223 ms 1 339 0.00 MB/sec execute 27 sec latency 33162.834 ms 1 339 0.00 MB/sec execute 28 sec latency 34164.627 ms 1 339 0.00 MB/sec execute 29 sec latency 35164.811 ms 1 339 0.00 MB/sec execute 30 sec latency 36168.231 ms oleg208-server: oleg208-server.virtnet: executing set_default_debug -1 all 1 339 0.00 MB/sec execute 31 sec latency 37172.253 ms 1 348 0.01 MB/sec execute 32 sec latency 37946.719 ms pdsh@oleg208-client: oleg208-server: ssh exited with exit code 1 1 373 0.03 MB/sec execute 33 sec latency 192.237 ms Started lustre-MDT0000 1 403 0.06 MB/sec execute 34 sec latency 140.809 ms 04:40:46 (1787388046) targets are mounted 04:40:46 (1787388046) facet_failover done 1 438 0.09 MB/sec execute 35 sec latency 129.692 ms 1 462 0.11 MB/sec execute 36 sec latency 178.605 ms 1 488 0.13 MB/sec execute 37 sec latency 210.952 ms 1 511 0.14 MB/sec execute 38 sec latency 187.636 ms 1 546 0.17 MB/sec execute 39 sec latency 146.401 ms 1 636 0.22 MB/sec execute 40 sec latency 90.448 ms 1 664 0.22 MB/sec execute 41 sec latency 113.792 ms 1 692 0.21 MB/sec execute 42 sec latency 167.321 ms oleg208-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1 718 0.21 MB/sec execute 43 sec latency 160.573 ms 1 737 0.21 MB/sec execute 44 sec latency 220.822 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 776 0.20 MB/sec execute 45 sec latency 128.932 ms 1 804 0.20 MB/sec execute 46 sec latency 122.735 ms 1 845 0.20 MB/sec execute 47 sec latency 199.891 ms 1 873 0.20 MB/sec execute 48 sec latency 137.381 ms 1 884 0.19 MB/sec execute 49 sec latency 246.364 ms 1 888 0.19 MB/sec execute 50 sec latency 889.249 ms 1 921 0.19 MB/sec execute 51 sec latency 267.997 ms 1 952 0.18 MB/sec execute 52 sec latency 155.096 ms 1 981 0.18 MB/sec execute 53 sec latency 198.911 ms 1 1027 0.20 MB/sec execute 54 sec latency 135.189 ms 1 1074 0.19 MB/sec execute 55 sec latency 111.455 ms tar: Unexpected EOF in archive tar: Unexpected EOF in archive 1 1124 0.19 MB/sec execute 56 sec latency 76.194 ms 1 1179 0.19 MB/sec execute 57 sec latency 79.975 ms 1 1221 0.19 MB/sec execute 58 sec latency 101.502 ms 1 1259 0.18 MB/sec execute 59 sec latency 95.582 ms 1 1384 0.23 MB/sec execute 60 sec latency 110.635 ms 1 1428 0.22 MB/sec execute 61 sec latency 119.983 ms 1 1473 0.22 MB/sec execute 62 sec latency 325.262 ms 1 1512 0.22 MB/sec execute 63 sec latency 100.722 ms 1 1570 0.22 MB/sec execute 64 sec latency 93.503 ms 1 1621 0.21 MB/sec execute 65 sec latency 108.497 ms tar: Error is not recoverable: exiting now dbench killed by signal 15 stopping dbench on /mnt/lustre at Sat Aug 22 04:41:17 EDT 2026 with return code 0 67933 pts/0 S+ 0:00 dbench -c client.txt 1 -D /mnt/lustre2/d26.replay-dual/run_dbench -t 100 killed dbench main pid 67933 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished