== replay-dual test 26: dbench and tar with mds failover ========================================================== 03:07:37 (1778656057) Starting client oleg253-client.virtnet: -o user_xattr,flock 192.168.202.153@tcp:/lustre /mnt/lustre Started clients oleg253-client.virtnet: 192.168.202.153@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 64851 Started dbench loop with 64852 striped dir -i0 -c2 -H fnv_1a_64 /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 1756 1269548 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 1564 3605456 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 5640 3593084 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 7204 7198540 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 May 13 03:07:45 EDT 2026 waiting for dbench pid 64930 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 158.461 ms 1 51 1.05 MB/sec warmup 2 sec latency 150.811 ms 1 91 1.40 MB/sec warmup 3 sec latency 169.540 ms 1 119 1.36 MB/sec warmup 4 sec latency 261.194 ms 1 139 1.20 MB/sec warmup 5 sec latency 283.843 ms 1 155 1.09 MB/sec warmup 6 sec latency 404.428 ms 1 181 1.04 MB/sec warmup 7 sec latency 612.989 ms 1 197 0.98 MB/sec warmup 8 sec latency 579.964 ms 1 226 0.96 MB/sec warmup 9 sec latency 126.279 ms test_26 fail mds1 1 times 1 271 1.01 MB/sec warmup 10 sec latency 109.026 ms 1 297 0.99 MB/sec warmup 11 sec latency 199.416 ms Failing mds1 on oleg253-server 1 318 0.95 MB/sec warmup 12 sec latency 227.555 ms 1 349 0.96 MB/sec warmup 13 sec latency 164.380 ms Stopping /mnt/lustre-mds1 (opts:) on oleg253-server 1 381 0.97 MB/sec warmup 14 sec latency 154.427 ms 1 396 0.94 MB/sec warmup 15 sec latency 449.844 ms 1 396 0.88 MB/sec warmup 16 sec latency 1450.084 ms 1 396 0.83 MB/sec warmup 17 sec latency 2450.331 ms 03:08:02 (1778656082) shut down facet: mds1 facet_host: oleg253-server facet_failover_host: oleg253-server 1 396 0.78 MB/sec warmup 18 sec latency 3450.597 ms 1 396 0.74 MB/sec warmup 19 sec latency 4450.737 ms 1 396 0.00 MB/sec execute 1 sec latency 6451.085 ms 1 396 0.00 MB/sec execute 2 sec latency 7452.574 ms 1 396 0.00 MB/sec execute 3 sec latency 8452.743 ms 1 396 0.00 MB/sec execute 4 sec latency 9452.926 ms 1 396 0.00 MB/sec execute 5 sec latency 10453.517 ms 1 396 0.00 MB/sec execute 6 sec latency 11454.667 ms 1 396 0.00 MB/sec execute 7 sec latency 12455.181 ms Failover mds1 to oleg253-server 1 396 0.00 MB/sec execute 8 sec latency 13456.459 ms mount facets: mds1 1 396 0.00 MB/sec execute 9 sec latency 14456.835 ms 1 396 0.00 MB/sec execute 10 sec latency 15457.583 ms 1 396 0.00 MB/sec execute 11 sec latency 16472.942 ms 1 396 0.00 MB/sec execute 12 sec latency 17473.180 ms 1 396 0.00 MB/sec execute 13 sec latency 18476.695 ms 1 396 0.00 MB/sec execute 14 sec latency 19476.933 ms 1 396 0.00 MB/sec execute 15 sec latency 20477.827 ms 1 396 0.00 MB/sec execute 16 sec latency 21478.153 ms 1 396 0.00 MB/sec execute 17 sec latency 22478.502 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 396 0.00 MB/sec execute 18 sec latency 23483.017 ms 1 396 0.00 MB/sec execute 19 sec latency 24483.655 ms 1 396 0.00 MB/sec execute 20 sec latency 25487.214 ms 1 396 0.00 MB/sec execute 21 sec latency 26487.603 ms 1 396 0.00 MB/sec execute 22 sec latency 27487.870 ms 1 396 0.00 MB/sec execute 23 sec latency 28488.048 ms 1 396 0.00 MB/sec execute 24 sec latency 29488.592 ms 1 396 0.00 MB/sec execute 25 sec latency 30488.780 ms 1 396 0.00 MB/sec execute 26 sec latency 31488.999 ms 1 396 0.00 MB/sec execute 27 sec latency 32489.510 ms 1 396 0.00 MB/sec execute 28 sec latency 33491.428 ms oleg253-server: oleg253-server.virtnet: executing set_default_debug -1 all 1 396 0.00 MB/sec execute 29 sec latency 34492.226 ms pdsh@oleg253-client: oleg253-server: ssh exited with exit code 1 1 396 0.00 MB/sec execute 30 sec latency 35492.377 ms 1 396 0.00 MB/sec execute 31 sec latency 36495.351 ms Started lustre-MDT0000 03:08:36 (1778656116) targets are mounted 03:08:36 (1778656116) facet_failover done 1 424 0.02 MB/sec execute 32 sec latency 37115.923 ms 1 461 0.06 MB/sec execute 33 sec latency 161.301 ms 1 485 0.08 MB/sec execute 34 sec latency 167.700 ms 1 503 0.10 MB/sec execute 35 sec latency 217.074 ms 1 542 0.14 MB/sec execute 36 sec latency 161.877 ms 1 552 0.14 MB/sec execute 37 sec latency 755.845 ms oleg253-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1 611 0.18 MB/sec execute 38 sec latency 773.584 ms 1 654 0.18 MB/sec execute 39 sec latency 113.456 ms 1 674 0.18 MB/sec execute 40 sec latency 170.463 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 699 0.17 MB/sec execute 41 sec latency 176.919 ms 1 731 0.17 MB/sec execute 42 sec latency 119.606 ms 1 762 0.17 MB/sec execute 43 sec latency 127.656 ms 1 789 0.17 MB/sec execute 44 sec latency 143.776 ms 1 808 0.16 MB/sec execute 45 sec latency 245.123 ms 1 851 0.16 MB/sec execute 46 sec latency 133.211 ms 1 887 0.16 MB/sec execute 47 sec latency 130.284 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2088 1269216 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 1868 1269436 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 14696 3580832 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 33436 3569048 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 48132 7149880 1% /mnt/lustre 1 918 0.16 MB/sec execute 48 sec latency 110.792 ms 1 936 0.16 MB/sec execute 49 sec latency 201.882 ms 1 967 0.15 MB/sec execute 50 sec latency 215.624 ms 1 986 0.15 MB/sec execute 51 sec latency 165.601 ms 1 1041 0.17 MB/sec execute 52 sec latency 82.151 ms 1 1074 0.17 MB/sec execute 53 sec latency 135.162 ms 1 1088 0.16 MB/sec execute 54 sec latency 319.863 ms 1 1127 0.16 MB/sec execute 55 sec latency 156.918 ms 1 1147 0.16 MB/sec execute 56 sec latency 146.621 ms 1 1172 0.16 MB/sec execute 57 sec latency 331.083 ms 1 1172 0.15 MB/sec execute 58 sec latency 1116.066 ms 1 1182 0.15 MB/sec execute 59 sec latency 1279.627 ms 1 1204 0.15 MB/sec execute 60 sec latency 172.745 ms 1 1252 0.15 MB/sec execute 61 sec latency 103.928 ms test_26 fail mds2 2 times 1 1318 0.16 MB/sec execute 62 sec latency 124.330 ms 1 1387 0.19 MB/sec execute 63 sec latency 228.084 ms 1 1403 0.19 MB/sec execute 64 sec latency 185.423 ms Failing mds2 on oleg253-server 1 1422 0.18 MB/sec execute 65 sec latency 205.679 ms Stopping /mnt/lustre-mds2 (opts:) on oleg253-server 1 1470 0.18 MB/sec execute 66 sec latency 116.082 ms 1 1512 0.18 MB/sec execute 67 sec latency 126.047 ms 1 1564 0.18 MB/sec execute 68 sec latency 87.593 ms 1 1616 0.17 MB/sec execute 69 sec latency 98.919 ms 03:09:14 (1778656154) shut down facet: mds2 facet_host: oleg253-server facet_failover_host: oleg253-server 1 1660 0.17 MB/sec execute 70 sec latency 110.495 ms 1 1721 0.17 MB/sec execute 71 sec latency 86.258 ms 1 1808 0.17 MB/sec execute 72 sec latency 78.777 ms 1 1871 0.17 MB/sec execute 73 sec latency 83.534 ms 1 1974 0.17 MB/sec execute 74 sec latency 82.853 ms 1 2022 0.17 MB/sec execute 75 sec latency 78.591 ms 1 2115 0.17 MB/sec execute 76 sec latency 87.776 ms 1 2164 0.16 MB/sec execute 77 sec latency 95.722 ms 1 2253 0.16 MB/sec execute 78 sec latency 69.792 ms 1 2259 0.16 MB/sec execute 79 sec latency 973.913 ms Failover mds2 to oleg253-server mount facets: mds2 1 2259 0.16 MB/sec execute 80 sec latency 1974.256 ms 1 2259 0.16 MB/sec execute 81 sec latency 2974.546 ms 1 2259 0.15 MB/sec execute 82 sec latency 3977.477 ms 1 2259 0.15 MB/sec execute 83 sec latency 4984.789 ms 1 2259 0.15 MB/sec execute 84 sec latency 5986.265 ms 1 2259 0.15 MB/sec execute 85 sec latency 6986.979 ms 1 2259 0.15 MB/sec execute 86 sec latency 7987.479 ms 1 2259 0.15 MB/sec execute 87 sec latency 8988.546 ms 1 2259 0.14 MB/sec execute 88 sec latency 9988.780 ms 1 2259 0.14 MB/sec execute 89 sec latency 11034.519 ms 1 2259 0.14 MB/sec execute 90 sec latency 12041.070 ms 1 2259 0.14 MB/sec execute 91 sec latency 13046.869 ms Start mds2: mount -t lustre -o localrecov /dev/mapper/mds2_flakey /mnt/lustre-mds2 1 2259 0.14 MB/sec execute 92 sec latency 14048.286 ms 1 2259 0.14 MB/sec execute 93 sec latency 15048.733 ms 1 2259 0.13 MB/sec execute 94 sec latency 16051.746 ms 1 2259 0.13 MB/sec execute 95 sec latency 17052.104 ms 1 2259 0.13 MB/sec execute 96 sec latency 18054.374 ms 1 2259 0.13 MB/sec execute 97 sec latency 19057.117 ms oleg253-server: oleg253-server.virtnet: executing set_default_debug -1 all 1 2259 0.13 MB/sec execute 98 sec latency 20058.918 ms 1 2259 0.13 MB/sec execute 99 sec latency 21066.474 ms pdsh@oleg253-client: oleg253-server: ssh exited with exit code 1 1 cleanup 100 sec Started lustre-MDT0001 03:09:46 (1778656186) targets are mounted 03:09:46 (1778656186) facet_failover done 1 cleanup 101 sec 1 cleanup 102 sec 1 cleanup 103 sec 1 cleanup 104 sec 1 cleanup 105 sec 1 cleanup 106 sec 0 cleanup 107 sec Operation Count AvgLat MaxLat ---------------------------------------- NTCreateX 333 133.278 23510.750 Close 290 141.074 37115.900 Rename 11 119.148 331.060 Unlink 30 26.178 83.547 Qpathinfo 295 17.407 228.061 Qfileinfo 82 2.291 12.373 Qfsinfo 33 6.298 48.504 Sfileinfo 34 85.154 319.848 Find 92 16.271 84.469 WriteX 286 16.369 144.633 ReadX 348 3.560 172.731 Flush 30 62.841 148.238 Throughput 0.127936 MB/sec 1 clients 1 procs max_latency=37115.923 ms oleg253-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0001-mdc-*.mds_server_uuid stopping dbench on /mnt/lustre at Wed May 13 03:09:52 EDT 2026 with return code 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 crush2 /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 May 13 03:10:04 EDT 2026 waiting for dbench pid 67030 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 UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2352 1268952 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 2104 1269200 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 20088 3586744 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 27156 3578672 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 47244 7165416 1% /mnt/lustre 0 5 0.00 MB/sec warmup 1 sec latency 84.985 ms 1 31 0.52 MB/sec warmup 2 sec latency 53.578 ms 1 70 1.05 MB/sec warmup 3 sec latency 115.317 ms 1 103 1.19 MB/sec warmup 4 sec latency 161.325 ms 1 129 1.15 MB/sec warmup 5 sec latency 204.850 ms 1 152 1.07 MB/sec warmup 6 sec latency 235.433 ms 1 174 1.01 MB/sec warmup 7 sec latency 211.089 ms 1 196 0.98 MB/sec warmup 8 sec latency 484.701 ms 1 226 0.96 MB/sec warmup 9 sec latency 119.774 ms 1 257 0.96 MB/sec warmup 10 sec latency 186.603 ms 1 313 1.04 MB/sec warmup 11 sec latency 121.170 ms 1 348 1.04 MB/sec warmup 12 sec latency 128.587 ms test_26 fail mds1 3 times 1 385 1.05 MB/sec warmup 13 sec latency 161.550 ms 1 419 1.05 MB/sec warmup 14 sec latency 135.896 ms Failing mds1 on oleg253-server 1 445 1.04 MB/sec warmup 15 sec latency 167.785 ms Stopping /mnt/lustre-mds1 (opts:) on oleg253-server 1 485 1.06 MB/sec warmup 16 sec latency 149.831 ms 1 501 1.02 MB/sec warmup 17 sec latency 583.506 ms 1 501 0.97 MB/sec warmup 18 sec latency 1583.825 ms 1 501 0.92 MB/sec warmup 19 sec latency 2585.754 ms 03:10:24 (1778656224) shut down facet: mds1 facet_host: oleg253-server facet_failover_host: oleg253-server 1 501 0.00 MB/sec execute 1 sec latency 4590.992 ms 1 501 0.00 MB/sec execute 2 sec latency 5591.233 ms 1 501 0.00 MB/sec execute 3 sec latency 6591.433 ms 1 501 0.00 MB/sec execute 4 sec latency 7591.623 ms 1 501 0.00 MB/sec execute 5 sec latency 8592.628 ms 1 501 0.00 MB/sec execute 6 sec latency 9594.250 ms 1 501 0.00 MB/sec execute 7 sec latency 10594.438 ms 1 501 0.00 MB/sec execute 8 sec latency 11594.735 ms 1 501 0.00 MB/sec execute 9 sec latency 12595.063 ms Failover mds1 to oleg253-server mount facets: mds1 1 501 0.00 MB/sec execute 10 sec latency 13595.216 ms 1 501 0.00 MB/sec execute 11 sec latency 14600.750 ms 1 501 0.00 MB/sec execute 12 sec latency 15601.831 ms 1 501 0.00 MB/sec execute 13 sec latency 16602.153 ms 1 501 0.00 MB/sec execute 14 sec latency 17602.910 ms 1 501 0.00 MB/sec execute 15 sec latency 18603.374 ms 1 501 0.00 MB/sec execute 16 sec latency 19603.739 ms 1 501 0.00 MB/sec execute 17 sec latency 20606.015 ms 1 501 0.00 MB/sec execute 18 sec latency 21606.197 ms 1 501 0.00 MB/sec execute 19 sec latency 22606.436 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 501 0.00 MB/sec execute 20 sec latency 23606.718 ms 1 501 0.00 MB/sec execute 21 sec latency 24606.919 ms 1 501 0.00 MB/sec execute 22 sec latency 25607.293 ms 1 501 0.00 MB/sec execute 23 sec latency 26607.494 ms 1 501 0.00 MB/sec execute 24 sec latency 27608.811 ms 1 501 0.00 MB/sec execute 25 sec latency 28609.030 ms 1 501 0.00 MB/sec execute 26 sec latency 29609.766 ms 1 501 0.00 MB/sec execute 27 sec latency 30610.020 ms 1 501 0.00 MB/sec execute 28 sec latency 31610.234 ms 1 501 0.00 MB/sec execute 29 sec latency 32610.480 ms 1 501 0.00 MB/sec execute 30 sec latency 33610.682 ms 1 501 0.00 MB/sec execute 31 sec latency 34611.581 ms 1 501 0.00 MB/sec execute 32 sec latency 35611.780 ms oleg253-server: oleg253-server.virtnet: executing set_default_debug -1 all 1 501 0.00 MB/sec execute 33 sec latency 36611.981 ms 1 501 0.00 MB/sec execute 34 sec latency 37612.179 ms pdsh@oleg253-client: oleg253-server: ssh exited with exit code 1 1 501 0.00 MB/sec execute 35 sec latency 38612.325 ms Started lustre-MDT0000 1 522 0.02 MB/sec execute 36 sec latency 38807.050 ms 03:11:01 (1778656261) targets are mounted 03:11:01 (1778656261) facet_failover done 1 552 0.04 MB/sec execute 37 sec latency 376.599 ms 1 598 0.09 MB/sec execute 38 sec latency 713.152 ms 1 642 0.09 MB/sec execute 39 sec latency 130.165 ms 1 674 0.09 MB/sec execute 40 sec latency 158.397 ms oleg253-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1 709 0.09 MB/sec execute 41 sec latency 138.935 ms 1 735 0.09 MB/sec execute 42 sec latency 147.286 ms 1 762 0.09 MB/sec execute 43 sec latency 151.048 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 789 0.09 MB/sec execute 44 sec latency 131.750 ms 1 848 0.09 MB/sec execute 45 sec latency 91.867 ms 1 892 0.09 MB/sec execute 46 sec latency 124.741 ms 1 918 0.09 MB/sec execute 47 sec latency 144.474 ms 1 959 0.09 MB/sec execute 48 sec latency 125.530 ms tar: Unexpected EOF in archive tar: Unexpected EOF in archive 1 998 0.09 MB/sec execute 49 sec latency 98.108 ms 1 1068 0.11 MB/sec execute 50 sec latency 98.312 ms 1 1145 0.11 MB/sec execute 51 sec latency 75.616 ms 1 1172 0.11 MB/sec execute 52 sec latency 528.727 ms 1 1196 0.11 MB/sec execute 53 sec latency 995.501 ms 1 1242 0.10 MB/sec execute 54 sec latency 115.362 ms 1 1384 0.15 MB/sec execute 55 sec latency 88.134 ms 1 1420 0.15 MB/sec execute 56 sec latency 91.112 ms tar: Error is not recoverable: exiting now dbench killed by signal 15 stopping dbench on /mnt/lustre at Wed May 13 03:11:22 EDT 2026 with return code 0 1 1473 0.15 MB/sec execute 57 sec latency 87.383 ms 67030 pts/0 S+ 0:00 dbench -c client.txt 1 -D /mnt/lustre2/d26.replay-dual/run_dbench -t 100 killed dbench main pid 67030 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished