== replay-dual test 26: dbench and tar with mds failover ========================================================== 11:03:28 (1789484608) Starting client oleg235-client.virtnet: -o user_xattr,flock 192.168.202.135@tcp:/lustre /mnt/lustre Started clients oleg235-client.virtnet: 192.168.202.135@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 65745 Started dbench loop with 65746 striped dir -i0 -c2 -H fnv_1a_64 /mnt/lustre2/d26.replay-dual/run_dbench striped dir -i0 -c2 -H all_char /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 1976 1269328 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 1792 1269512 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 26140 3580796 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 1544 3605476 1% /mnt/lustre[OST:1] '/usr/share/dbench/client.txt' -> 'client.txt' filesystem_summary: 7666232 27684 7186272 1% /mnt/lustre running 'dbench 1 -D /mnt/lustre2/d26.replay-dual/run_dbench -t 100' on /mnt/lustre at Tue Sep 15 11:03:33 EDT 2026 waiting for dbench pid 65804 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 20 0.39 MB/sec warmup 1 sec latency 21.205 ms 1 79 1.73 MB/sec warmup 2 sec latency 117.602 ms 1 114 1.75 MB/sec warmup 3 sec latency 154.528 ms 1 147 1.57 MB/sec warmup 4 sec latency 168.366 ms 1 178 1.44 MB/sec warmup 5 sec latency 136.524 ms 1 194 1.28 MB/sec warmup 6 sec latency 569.866 ms 1 230 1.27 MB/sec warmup 7 sec latency 151.540 ms 1 264 1.24 MB/sec warmup 8 sec latency 145.582 ms 1 300 1.22 MB/sec warmup 9 sec latency 128.194 ms 1 349 1.25 MB/sec warmup 10 sec latency 85.135 ms test_26 fail mds1 1 times 1 389 1.26 MB/sec warmup 11 sec latency 168.834 ms 1 424 1.24 MB/sec warmup 12 sec latency 127.282 ms Failing mds1 on oleg235-server 1 457 1.23 MB/sec warmup 13 sec latency 148.215 ms Stopping /mnt/lustre-mds1 (opts:) on oleg235-server 1 485 1.21 MB/sec warmup 14 sec latency 193.437 ms 1 513 1.18 MB/sec warmup 15 sec latency 152.954 ms 1 593 1.28 MB/sec warmup 16 sec latency 125.918 ms 1 606 1.23 MB/sec warmup 17 sec latency 853.026 ms 1 606 1.16 MB/sec warmup 18 sec latency 1853.247 ms 11:03:52 (1789484632) shut down facet: mds1 facet_host: oleg235-server facet_failover_host: oleg235-server 1 606 1.10 MB/sec warmup 19 sec latency 2853.472 ms 1 606 0.00 MB/sec execute 1 sec latency 4855.209 ms 1 606 0.00 MB/sec execute 2 sec latency 5856.200 ms 1 606 0.00 MB/sec execute 3 sec latency 6856.600 ms 1 606 0.00 MB/sec execute 4 sec latency 7857.379 ms 1 606 0.00 MB/sec execute 5 sec latency 8859.963 ms 1 606 0.00 MB/sec execute 6 sec latency 9860.205 ms 1 606 0.00 MB/sec execute 7 sec latency 10861.067 ms 1 606 0.00 MB/sec execute 8 sec latency 11864.197 ms Failover mds1 to oleg235-server mount facets: mds1 1 606 0.00 MB/sec execute 9 sec latency 12865.092 ms 1 606 0.00 MB/sec execute 10 sec latency 13865.262 ms 1 606 0.00 MB/sec execute 11 sec latency 14865.446 ms 1 606 0.00 MB/sec execute 12 sec latency 15873.469 ms 1 606 0.00 MB/sec execute 13 sec latency 16875.108 ms 1 606 0.00 MB/sec execute 14 sec latency 17875.472 ms 1 606 0.00 MB/sec execute 15 sec latency 18875.868 ms 1 606 0.00 MB/sec execute 16 sec latency 19876.392 ms 1 606 0.00 MB/sec execute 17 sec latency 20876.551 ms 1 606 0.00 MB/sec execute 18 sec latency 21876.783 ms 1 606 0.00 MB/sec execute 19 sec latency 22877.791 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 606 0.00 MB/sec execute 20 sec latency 23878.016 ms 1 606 0.00 MB/sec execute 21 sec latency 24878.294 ms 1 606 0.00 MB/sec execute 22 sec latency 25878.723 ms 1 606 0.00 MB/sec execute 23 sec latency 26881.267 ms 1 606 0.00 MB/sec execute 24 sec latency 27881.767 ms 1 606 0.00 MB/sec execute 25 sec latency 28882.234 ms 1 606 0.00 MB/sec execute 26 sec latency 29882.478 ms 1 606 0.00 MB/sec execute 27 sec latency 30882.753 ms 1 606 0.00 MB/sec execute 28 sec latency 31883.065 ms 1 606 0.00 MB/sec execute 29 sec latency 32884.391 ms oleg235-server: oleg235-server.virtnet: executing set_default_debug -1 all 1 606 0.00 MB/sec execute 30 sec latency 33888.086 ms pdsh@oleg235-client: oleg235-server: ssh exited with exit code 1 1 606 0.00 MB/sec execute 31 sec latency 34891.103 ms Started lustre-MDT0000 1 606 0.00 MB/sec execute 32 sec latency 35896.131 ms 11:04:26 (1789484666) targets are mounted 11:04:26 (1789484666) facet_failover done 1 606 0.00 MB/sec execute 33 sec latency 36896.692 ms 1 606 0.00 MB/sec execute 34 sec latency 37896.947 ms 1 642 0.00 MB/sec execute 35 sec latency 38166.970 ms 1 676 0.01 MB/sec execute 36 sec latency 129.945 ms 1 718 0.01 MB/sec execute 37 sec latency 114.904 ms 1 721 0.01 MB/sec execute 38 sec latency 772.508 ms 1 762 0.01 MB/sec execute 39 sec latency 283.069 ms oleg235-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 786 0.01 MB/sec execute 40 sec latency 132.312 ms 1 809 0.01 MB/sec execute 41 sec latency 117.039 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 865 0.01 MB/sec execute 42 sec latency 90.096 ms 1 892 0.02 MB/sec execute 43 sec latency 135.043 ms 1 923 0.02 MB/sec execute 44 sec latency 101.506 ms 1 969 0.02 MB/sec execute 45 sec latency 86.813 ms 1 1018 0.03 MB/sec execute 46 sec latency 101.982 ms 1 1095 0.04 MB/sec execute 47 sec latency 90.812 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2144 1269160 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 1932 1269372 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 46028 3556132 2% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 12960 3593864 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 58988 7149996 1% /mnt/lustre 1 1136 0.04 MB/sec execute 48 sec latency 84.537 ms 1 1172 0.04 MB/sec execute 49 sec latency 147.806 ms 1 1201 0.04 MB/sec execute 50 sec latency 93.992 ms 1 1244 0.04 MB/sec execute 51 sec latency 81.111 ms 1 1274 0.04 MB/sec execute 52 sec latency 129.224 ms 1 1378 0.09 MB/sec execute 53 sec latency 551.786 ms 1 1421 0.09 MB/sec execute 54 sec latency 176.476 ms 1 1446 0.09 MB/sec execute 55 sec latency 441.060 ms 1 1497 0.09 MB/sec execute 56 sec latency 111.384 ms 1 1548 0.09 MB/sec execute 57 sec latency 114.052 ms 1 1591 0.09 MB/sec execute 58 sec latency 65.909 ms test_26 fail mds2 2 times 1 1634 0.09 MB/sec execute 59 sec latency 126.758 ms Failing mds2 on oleg235-server 1 1660 0.09 MB/sec execute 60 sec latency 154.350 ms 1 1696 0.09 MB/sec execute 61 sec latency 159.083 ms Stopping /mnt/lustre-mds2 (opts:) on oleg235-server 1 1770 0.09 MB/sec execute 62 sec latency 82.861 ms 1 1830 0.09 MB/sec execute 63 sec latency 110.260 ms 1 1884 0.08 MB/sec execute 64 sec latency 80.506 ms 1 1974 0.08 MB/sec execute 65 sec latency 80.936 ms 1 2055 0.09 MB/sec execute 66 sec latency 91.669 ms 1 2148 0.09 MB/sec execute 67 sec latency 65.000 ms 1 2233 0.09 MB/sec execute 68 sec latency 53.401 ms 1 2259 0.08 MB/sec execute 69 sec latency 683.998 ms 1 2259 0.08 MB/sec execute 70 sec latency 1684.776 ms 11:05:04 (1789484704) shut down facet: mds2 facet_host: oleg235-server facet_failover_host: oleg235-server 1 2259 0.08 MB/sec execute 71 sec latency 2685.383 ms 1 2259 0.08 MB/sec execute 72 sec latency 3685.690 ms 1 2259 0.08 MB/sec execute 73 sec latency 4686.117 ms 1 2259 0.08 MB/sec execute 74 sec latency 5686.343 ms 1 2259 0.08 MB/sec execute 75 sec latency 6686.577 ms 1 2259 0.08 MB/sec execute 76 sec latency 7686.970 ms 1 2259 0.08 MB/sec execute 77 sec latency 8691.735 ms 1 2259 0.07 MB/sec execute 78 sec latency 9692.011 ms 1 2259 0.07 MB/sec execute 79 sec latency 10692.229 ms 1 2259 0.07 MB/sec execute 80 sec latency 11692.505 ms Failover mds2 to oleg235-server mount facets: mds2 1 2259 0.07 MB/sec execute 81 sec latency 12693.274 ms 1 2259 0.07 MB/sec execute 82 sec latency 13693.515 ms 1 2259 0.07 MB/sec execute 83 sec latency 14693.716 ms 1 2259 0.07 MB/sec execute 84 sec latency 15694.625 ms 1 2259 0.07 MB/sec execute 85 sec latency 16694.970 ms 1 2259 0.07 MB/sec execute 86 sec latency 17696.564 ms 1 2259 0.07 MB/sec execute 87 sec latency 18698.321 ms 1 2259 0.07 MB/sec execute 88 sec latency 19698.989 ms Start mds2: mount -t lustre -o localrecov /dev/mapper/mds2_flakey /mnt/lustre-mds2 1 2259 0.07 MB/sec execute 89 sec latency 20701.338 ms 1 2259 0.06 MB/sec execute 90 sec latency 21701.738 ms 1 2259 0.06 MB/sec execute 91 sec latency 22702.015 ms 1 2259 0.06 MB/sec execute 92 sec latency 23705.466 ms 1 2259 0.06 MB/sec execute 93 sec latency 24707.284 ms 1 2259 0.06 MB/sec execute 94 sec latency 25707.543 ms 1 2259 0.06 MB/sec execute 95 sec latency 26710.901 ms 1 2259 0.06 MB/sec execute 96 sec latency 27712.680 ms 1 2259 0.06 MB/sec execute 97 sec latency 28720.741 ms oleg235-server: oleg235-server.virtnet: executing set_default_debug -1 all 1 2262 0.06 MB/sec execute 98 sec latency 29623.774 ms 1 2335 0.07 MB/sec execute 99 sec latency 155.199 ms pdsh@oleg235-client: oleg235-server: ssh exited with exit code 1 1 cleanup 100 sec Started lustre-MDT0001 11:05:34 (1789484734) targets are mounted 11:05:34 (1789484734) facet_failover done 1 cleanup 101 sec 1 cleanup 102 sec 1 cleanup 103 sec 1 cleanup 104 sec 1 cleanup 105 sec 0 cleanup 106 sec Operation Count AvgLat MaxLat ---------------------------------------- NTCreateX 322 140.408 29623.754 Close 278 13.019 441.045 Rename 12 91.782 147.781 Unlink 31 25.102 51.210 Qpathinfo 310 138.028 38166.948 Qfileinfo 54 2.129 16.842 Qfsinfo 33 3.305 21.824 Sfileinfo 38 60.374 119.295 Find 100 11.348 58.566 WriteX 169 13.224 113.038 ReadX 378 2.720 90.357 Flush 31 70.552 283.053 Throughput 0.0692061 MB/sec 1 clients 1 procs max_latency=38166.970 ms stopping dbench on /mnt/lustre at Tue Sep 15 11:05:39 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 all_char /mnt/lustre2/d26.replay-dual/run_dbench oleg235-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0001-mdc-*.mds_server_uuid 1475 0 mdc.lustre-MDT0001-mdc-*.mds_server_uuid in FULL state after 0 sec 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 Tue Sep 15 11:05:50 EDT 2026 waiting for dbench pid 67924 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 10.443 ms 1 52 1.05 MB/sec warmup 2 sec latency 145.138 ms 1 110 1.75 MB/sec warmup 3 sec latency 135.345 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2308 1268996 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 2208 1269096 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 44636 3559884 2% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 2568 3604368 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 47204 7164252 1% /mnt/lustre 1 137 1.50 MB/sec warmup 4 sec latency 188.972 ms 1 157 1.31 MB/sec warmup 5 sec latency 224.939 ms 1 184 1.23 MB/sec warmup 6 sec latency 171.804 ms 1 197 1.12 MB/sec warmup 7 sec latency 663.722 ms 1 226 1.08 MB/sec warmup 8 sec latency 183.876 ms 1 263 1.10 MB/sec warmup 9 sec latency 130.399 ms 1 278 1.04 MB/sec warmup 10 sec latency 614.740 ms 1 278 0.95 MB/sec warmup 11 sec latency 1614.915 ms 1 289 0.89 MB/sec warmup 12 sec latency 2155.183 ms 1 315 0.88 MB/sec warmup 13 sec latency 176.096 ms 1 349 0.89 MB/sec warmup 14 sec latency 160.832 ms 1 382 0.90 MB/sec warmup 15 sec latency 157.498 ms test_26 fail mds1 3 times 1 416 0.91 MB/sec warmup 16 sec latency 140.619 ms 1 445 0.92 MB/sec warmup 17 sec latency 188.965 ms Failing mds1 on oleg235-server 1 477 0.93 MB/sec warmup 18 sec latency 309.458 ms 1 504 0.92 MB/sec warmup 19 sec latency 141.766 ms Stopping /mnt/lustre-mds1 (opts:) on oleg235-server 1 600 1.87 MB/sec execute 1 sec latency 367.024 ms 1 600 0.93 MB/sec execute 2 sec latency 1367.717 ms 1 600 0.62 MB/sec execute 3 sec latency 2367.950 ms 11:06:13 (1789484773) shut down facet: mds1 facet_host: oleg235-server facet_failover_host: oleg235-server 1 600 0.47 MB/sec execute 4 sec latency 3370.660 ms 1 600 0.37 MB/sec execute 5 sec latency 4371.418 ms 1 600 0.31 MB/sec execute 6 sec latency 5373.315 ms 1 600 0.27 MB/sec execute 7 sec latency 6374.267 ms 1 600 0.23 MB/sec execute 8 sec latency 7374.576 ms 1 600 0.21 MB/sec execute 9 sec latency 8374.889 ms 1 600 0.19 MB/sec execute 10 sec latency 9375.109 ms 1 600 0.17 MB/sec execute 11 sec latency 10375.598 ms 1 600 0.16 MB/sec execute 12 sec latency 11377.817 ms 1 600 0.14 MB/sec execute 13 sec latency 12384.103 ms 1 600 0.13 MB/sec execute 14 sec latency 13386.344 ms Failover mds1 to oleg235-server mount facets: mds1 1 600 0.12 MB/sec execute 15 sec latency 14386.607 ms 1 600 0.12 MB/sec execute 16 sec latency 15387.436 ms 1 600 0.11 MB/sec execute 17 sec latency 16388.690 ms 1 600 0.10 MB/sec execute 18 sec latency 17391.216 ms 1 600 0.10 MB/sec execute 19 sec latency 18392.312 ms 1 600 0.09 MB/sec execute 20 sec latency 19396.205 ms 1 600 0.09 MB/sec execute 21 sec latency 20396.420 ms 1 600 0.08 MB/sec execute 22 sec latency 21398.166 ms 1 600 0.08 MB/sec execute 23 sec latency 22398.434 ms 1 600 0.08 MB/sec execute 24 sec latency 23399.036 ms 1 600 0.07 MB/sec execute 25 sec latency 24399.276 ms 1 600 0.07 MB/sec execute 26 sec latency 25399.613 ms 1 600 0.07 MB/sec execute 27 sec latency 26399.843 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 600 0.07 MB/sec execute 28 sec latency 27400.074 ms 1 600 0.06 MB/sec execute 29 sec latency 28404.065 ms 1 600 0.06 MB/sec execute 30 sec latency 29404.466 ms 1 600 0.06 MB/sec execute 31 sec latency 30404.699 ms 1 600 0.06 MB/sec execute 32 sec latency 31404.927 ms 1 600 0.06 MB/sec execute 33 sec latency 32405.671 ms 1 600 0.05 MB/sec execute 34 sec latency 33405.929 ms 1 600 0.05 MB/sec execute 35 sec latency 34406.569 ms 1 600 0.05 MB/sec execute 36 sec latency 35406.812 ms 1 600 0.05 MB/sec execute 37 sec latency 36410.686 ms 1 600 0.05 MB/sec execute 38 sec latency 37410.898 ms oleg235-server: oleg235-server.virtnet: executing set_default_debug -1 all 1 600 0.05 MB/sec execute 39 sec latency 38412.890 ms 1 609 0.05 MB/sec execute 40 sec latency 39124.190 ms pdsh@oleg235-client: oleg235-server: ssh exited with exit code 1 1 661 0.05 MB/sec execute 41 sec latency 130.711 ms Started lustre-MDT0000 11:06:51 (1789484811) targets are mounted 11:06:51 (1789484811) facet_failover done 1 710 0.05 MB/sec execute 42 sec latency 132.104 ms 1 720 0.05 MB/sec execute 43 sec latency 828.315 ms 1 738 0.05 MB/sec execute 44 sec latency 978.073 ms 1 769 0.05 MB/sec execute 45 sec latency 134.573 ms 1 794 0.05 MB/sec execute 46 sec latency 152.387 ms 1 824 0.05 MB/sec execute 47 sec latency 155.583 ms 1 870 0.05 MB/sec execute 48 sec latency 170.422 ms 1 887 0.05 MB/sec execute 49 sec latency 162.887 ms oleg235-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 919 0.05 MB/sec execute 50 sec latency 122.166 ms 1 969 0.05 MB/sec execute 51 sec latency 94.187 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 988 0.05 MB/sec execute 52 sec latency 143.106 ms 1 1011 0.06 MB/sec execute 53 sec latency 139.258 ms 1 1076 0.07 MB/sec execute 54 sec latency 175.053 ms 1 1128 0.07 MB/sec execute 55 sec latency 92.391 ms 1 1156 0.07 MB/sec execute 56 sec latency 176.569 ms 1 1200 0.07 MB/sec execute 57 sec latency 116.257 ms tar: Unexpected EOF in archive tar: Unexpected EOF in archive 1 1242 0.07 MB/sec execute 58 sec latency 80.048 ms 1 1319 0.09 MB/sec execute 59 sec latency 112.098 ms 1 1393 0.11 MB/sec execute 60 sec latency 574.684 ms 1 1447 0.11 MB/sec execute 61 sec latency 68.754 ms 1 1499 0.11 MB/sec execute 62 sec latency 143.577 ms 1 1552 0.11 MB/sec execute 63 sec latency 83.902 ms 1 1603 0.11 MB/sec execute 64 sec latency 170.816 ms 1 1643 0.11 MB/sec execute 65 sec latency 116.203 ms 1 1660 0.11 MB/sec execute 66 sec latency 345.228 ms 1 1691 0.11 MB/sec execute 67 sec latency 160.484 ms 1 1747 0.11 MB/sec execute 68 sec latency 151.012 ms tar: Error is not recoverable: exiting now dbench killed by signal 15 stopping dbench on /mnt/lustre at Tue Sep 15 11:07:19 EDT 2026 with return code 0 1 1814 0.10 MB/sec execute 69 sec latency 71.879 ms 67924 pts/0 S+ 0:00 dbench -c client.txt 1 -D /mnt/lustre2/d26.replay-dual/run_dbench -t 100 killed dbench main pid 67924 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished