== replay-dual test 26: dbench and tar with mds failover ========================================================== 20:10:36 (1781223036) Starting client oleg427-client.virtnet: -o user_xattr,flock 192.168.204.127@tcp:/lustre /mnt/lustre Started clients oleg427-client.virtnet: 192.168.204.127@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 64991 Started dbench loop with 64992 striped dir -i0 -c2 -H crush /mnt/lustre/d26.replay-dual/run_tar 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 1940 1269364 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 1756 1269548 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 1564 3588900 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 1544 3605476 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 3108 7194376 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 Thu Jun 11 20:10:44 EDT 2026 waiting for dbench pid 65069 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 34.565 ms 1 60 1.24 MB/sec warmup 2 sec latency 132.705 ms 1 111 1.74 MB/sec warmup 3 sec latency 119.294 ms 1 144 1.53 MB/sec warmup 4 sec latency 148.810 ms 1 184 1.46 MB/sec warmup 5 sec latency 126.056 ms 1 206 1.35 MB/sec warmup 6 sec latency 311.582 ms 1 247 1.34 MB/sec warmup 7 sec latency 147.971 ms 1 287 1.34 MB/sec warmup 8 sec latency 151.495 ms test_26 fail mds1 1 times 1 318 1.27 MB/sec warmup 9 sec latency 132.643 ms 1 349 1.25 MB/sec warmup 10 sec latency 138.094 ms Failing mds1 on oleg427-server 1 389 1.25 MB/sec warmup 11 sec latency 136.274 ms Stopping /mnt/lustre-mds1 (opts:) on oleg427-server 1 430 1.26 MB/sec warmup 12 sec latency 127.505 ms 1 437 1.18 MB/sec warmup 13 sec latency 920.672 ms 1 437 1.10 MB/sec warmup 14 sec latency 1920.892 ms 20:10:58 (1781223058) shut down facet: mds1 facet_host: oleg427-server facet_failover_host: oleg427-server 1 437 1.02 MB/sec warmup 15 sec latency 2921.277 ms 1 437 0.96 MB/sec warmup 16 sec latency 3922.375 ms 1 437 0.90 MB/sec warmup 17 sec latency 4922.585 ms 1 437 0.85 MB/sec warmup 18 sec latency 5922.786 ms 1 437 0.81 MB/sec warmup 19 sec latency 6923.879 ms 1 437 0.00 MB/sec execute 1 sec latency 8924.360 ms 1 437 0.00 MB/sec execute 2 sec latency 9924.657 ms 1 437 0.00 MB/sec execute 3 sec latency 10926.836 ms 1 437 0.00 MB/sec execute 4 sec latency 11927.191 ms Failover mds1 to oleg427-server 1 437 0.00 MB/sec execute 5 sec latency 12927.338 ms mount facets: mds1 1 437 0.00 MB/sec execute 6 sec latency 13928.067 ms 1 437 0.00 MB/sec execute 7 sec latency 14929.648 ms 1 437 0.00 MB/sec execute 8 sec latency 15930.293 ms 1 437 0.00 MB/sec execute 9 sec latency 16934.360 ms 1 437 0.00 MB/sec execute 10 sec latency 17934.847 ms 1 437 0.00 MB/sec execute 11 sec latency 18935.452 ms 1 437 0.00 MB/sec execute 12 sec latency 19936.137 ms 1 437 0.00 MB/sec execute 13 sec latency 20936.840 ms 1 437 0.00 MB/sec execute 14 sec latency 21937.138 ms 1 437 0.00 MB/sec execute 15 sec latency 22937.710 ms 1 437 0.00 MB/sec execute 16 sec latency 23939.146 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 437 0.00 MB/sec execute 17 sec latency 24941.074 ms 1 437 0.00 MB/sec execute 18 sec latency 25941.531 ms 1 437 0.00 MB/sec execute 19 sec latency 26943.111 ms 1 437 0.00 MB/sec execute 20 sec latency 27944.533 ms 1 437 0.00 MB/sec execute 21 sec latency 28944.867 ms 1 437 0.00 MB/sec execute 22 sec latency 29945.146 ms 1 437 0.00 MB/sec execute 23 sec latency 30945.881 ms 1 437 0.00 MB/sec execute 24 sec latency 31948.687 ms 1 437 0.00 MB/sec execute 25 sec latency 32948.917 ms 1 437 0.00 MB/sec execute 26 sec latency 33949.390 ms 1 437 0.00 MB/sec execute 27 sec latency 34950.428 ms 1 437 0.00 MB/sec execute 28 sec latency 35951.591 ms 1 437 0.00 MB/sec execute 29 sec latency 36954.873 ms 1 437 0.00 MB/sec execute 30 sec latency 37955.235 ms oleg427-server: oleg427-server.virtnet: executing set_default_debug -1 all 1 437 0.00 MB/sec execute 31 sec latency 38955.447 ms pdsh@oleg427-client: oleg427-server: ssh exited with exit code 1 1 437 0.00 MB/sec execute 32 sec latency 39957.509 ms 1 449 0.01 MB/sec execute 33 sec latency 40507.226 ms Started lustre-MDT0000 20:11:37 (1781223097) targets are mounted 20:11:37 (1781223097) facet_failover done 1 477 0.04 MB/sec execute 34 sec latency 152.328 ms 1 503 0.06 MB/sec execute 35 sec latency 181.340 ms 1 522 0.07 MB/sec execute 36 sec latency 250.130 ms 1 552 0.10 MB/sec execute 37 sec latency 365.785 ms 1 596 0.14 MB/sec execute 38 sec latency 897.343 ms oleg427-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1 649 0.15 MB/sec execute 39 sec latency 104.694 ms 1 673 0.14 MB/sec execute 40 sec latency 269.255 ms 1 697 0.14 MB/sec execute 41 sec latency 159.807 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 720 0.14 MB/sec execute 42 sec latency 196.839 ms 1 749 0.14 MB/sec execute 43 sec latency 120.438 ms 1 781 0.14 MB/sec execute 44 sec latency 160.844 ms 1 808 0.14 MB/sec execute 45 sec latency 139.723 ms 1 851 0.13 MB/sec execute 46 sec latency 144.248 ms 1 888 0.13 MB/sec execute 47 sec latency 111.190 ms 1 918 0.13 MB/sec execute 48 sec latency 108.037 ms 1 940 0.13 MB/sec execute 49 sec latency 143.008 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2100 1269204 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 1904 1269400 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 40716 3564252 2% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 11904 3590232 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 52620 7154484 1% /mnt/lustre 1 965 0.13 MB/sec execute 50 sec latency 193.117 ms 1 985 0.13 MB/sec execute 51 sec latency 145.454 ms 1 1028 0.14 MB/sec execute 52 sec latency 184.505 ms 1 1060 0.14 MB/sec execute 53 sec latency 105.054 ms 1 1091 0.14 MB/sec execute 54 sec latency 116.074 ms 1 1127 0.14 MB/sec execute 55 sec latency 117.099 ms 1 1149 0.14 MB/sec execute 56 sec latency 159.503 ms 1 1172 0.13 MB/sec execute 57 sec latency 398.872 ms 1 1172 0.13 MB/sec execute 58 sec latency 1400.048 ms 1 1190 0.13 MB/sec execute 59 sec latency 1463.816 ms 1 1221 0.13 MB/sec execute 60 sec latency 138.327 ms 1 1246 0.13 MB/sec execute 61 sec latency 123.684 ms test_26 fail mds2 2 times 1 1278 0.12 MB/sec execute 62 sec latency 133.097 ms 1 1388 0.17 MB/sec execute 63 sec latency 116.682 ms 1 1405 0.17 MB/sec execute 64 sec latency 223.949 ms Failing mds2 on oleg427-server 1 1428 0.16 MB/sec execute 65 sec latency 148.954 ms Stopping /mnt/lustre-mds2 (opts:) on oleg427-server 1 1467 0.16 MB/sec execute 66 sec latency 102.620 ms 1 1499 0.16 MB/sec execute 67 sec latency 157.870 ms 1 1532 0.16 MB/sec execute 68 sec latency 131.265 ms 1 1571 0.16 MB/sec execute 69 sec latency 103.499 ms 1 1608 0.15 MB/sec execute 70 sec latency 114.990 ms 20:12:15 (1781223135) shut down facet: mds2 facet_host: oleg427-server facet_failover_host: oleg427-server 1 1649 0.15 MB/sec execute 71 sec latency 145.145 ms 1 1686 0.15 MB/sec execute 72 sec latency 148.307 ms 1 1717 0.15 MB/sec execute 73 sec latency 167.865 ms 1 1795 0.15 MB/sec execute 74 sec latency 73.152 ms 1 1837 0.15 MB/sec execute 75 sec latency 112.423 ms 1 1877 0.14 MB/sec execute 76 sec latency 159.219 ms 1 1945 0.14 MB/sec execute 77 sec latency 174.619 ms 1 2000 0.14 MB/sec execute 78 sec latency 109.284 ms 1 2071 0.14 MB/sec execute 79 sec latency 112.599 ms 1 2137 0.14 MB/sec execute 80 sec latency 84.480 ms Failover mds2 to oleg427-server 1 2168 0.14 MB/sec execute 81 sec latency 131.934 ms mount facets: mds2 1 2210 0.14 MB/sec execute 82 sec latency 104.905 ms 1 2259 0.14 MB/sec execute 83 sec latency 155.704 ms 1 2259 0.14 MB/sec execute 84 sec latency 1156.277 ms 1 2259 0.13 MB/sec execute 85 sec latency 2160.125 ms 1 2259 0.13 MB/sec execute 86 sec latency 3160.522 ms 1 2259 0.13 MB/sec execute 87 sec latency 4162.418 ms 1 2259 0.13 MB/sec execute 88 sec latency 5165.091 ms 1 2259 0.13 MB/sec execute 89 sec latency 6165.441 ms 1 2259 0.13 MB/sec execute 90 sec latency 7168.933 ms 1 2259 0.13 MB/sec execute 91 sec latency 8169.141 ms Start mds2: mount -t lustre -o localrecov /dev/mapper/mds2_flakey /mnt/lustre-mds2 1 2259 0.12 MB/sec execute 92 sec latency 9169.806 ms 1 2259 0.12 MB/sec execute 93 sec latency 10170.225 ms 1 2259 0.12 MB/sec execute 94 sec latency 11170.821 ms 1 2259 0.12 MB/sec execute 95 sec latency 12174.559 ms 1 2259 0.12 MB/sec execute 96 sec latency 13174.973 ms 1 2259 0.12 MB/sec execute 97 sec latency 14175.176 ms 1 2259 0.12 MB/sec execute 98 sec latency 15175.406 ms oleg427-server: oleg427-server.virtnet: executing set_default_debug -1 all 1 2259 0.11 MB/sec execute 99 sec latency 16186.549 ms 1 cleanup 100 sec pdsh@oleg427-client: oleg427-server: ssh exited with exit code 1 1 cleanup 101 sec Started lustre-MDT0001 20:12:45 (1781223165) targets are mounted 20:12:45 (1781223165) facet_failover done 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 328 253.262 40507.202 Close 284 14.252 82.426 Rename 11 114.900 196.813 Unlink 30 32.221 70.831 Qpathinfo 295 19.133 146.821 Qfileinfo 77 3.505 28.762 Qfsinfo 33 6.513 31.083 Sfileinfo 34 79.538 145.428 Find 92 17.119 61.978 WriteX 261 17.188 97.256 ReadX 348 4.192 159.319 Flush 30 54.016 119.384 Throughput 0.114915 MB/sec 1 clients 1 procs max_latency=40507.226 ms stopping dbench on /mnt/lustre at Thu Jun 11 20:12:50 EDT 2026 with return code 0 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre oleg427-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0001-mdc-*.mds_server_uuid 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 crush /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 Thu Jun 11 20:12:59 EDT 2026 waiting for dbench pid 67151 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 1 28 0.91 MB/sec warmup 1 sec latency 23.351 ms 1 90 2.09 MB/sec warmup 2 sec latency 142.318 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2344 1268960 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 2120 1269184 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 20112 3582560 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 27132 3578568 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 47244 7161128 1% /mnt/lustre 1 121 1.83 MB/sec warmup 3 sec latency 237.499 ms 1 155 1.63 MB/sec warmup 4 sec latency 149.551 ms 1 184 1.47 MB/sec warmup 5 sec latency 149.631 ms 1 208 1.35 MB/sec warmup 6 sec latency 433.795 ms 1 255 1.38 MB/sec warmup 7 sec latency 136.330 ms 1 293 1.34 MB/sec warmup 8 sec latency 138.987 ms 1 324 1.30 MB/sec warmup 9 sec latency 143.459 ms 1 357 1.28 MB/sec warmup 10 sec latency 141.532 ms 1 397 1.28 MB/sec warmup 11 sec latency 156.490 ms test_26 fail mds1 3 times 1 433 1.26 MB/sec warmup 12 sec latency 102.125 ms 1 469 1.26 MB/sec warmup 13 sec latency 180.264 ms Failing mds1 on oleg427-server 1 502 1.24 MB/sec warmup 14 sec latency 158.209 ms 1 539 1.26 MB/sec warmup 15 sec latency 149.219 ms Stopping /mnt/lustre-mds1 (opts:) on oleg427-server 1 603 1.31 MB/sec warmup 16 sec latency 116.234 ms 1 611 1.23 MB/sec warmup 17 sec latency 682.057 ms 1 611 1.16 MB/sec warmup 18 sec latency 1684.146 ms 1 611 1.10 MB/sec warmup 19 sec latency 2684.404 ms 1 611 0.00 MB/sec execute 1 sec latency 4687.646 ms 1 611 0.00 MB/sec execute 2 sec latency 5691.751 ms 1 611 0.00 MB/sec execute 3 sec latency 6692.150 ms 1 611 0.00 MB/sec execute 4 sec latency 7693.775 ms 1 611 0.00 MB/sec execute 5 sec latency 8695.891 ms 1 611 0.00 MB/sec execute 6 sec latency 9698.881 ms 20:13:26 (1781223206) shut down facet: mds1 facet_host: oleg427-server facet_failover_host: oleg427-server 1 611 0.00 MB/sec execute 7 sec latency 10699.295 ms 1 611 0.00 MB/sec execute 8 sec latency 11699.890 ms 1 611 0.00 MB/sec execute 9 sec latency 12701.359 ms 1 611 0.00 MB/sec execute 10 sec latency 13701.926 ms 1 611 0.00 MB/sec execute 11 sec latency 14702.799 ms 1 611 0.00 MB/sec execute 12 sec latency 15706.361 ms 1 611 0.00 MB/sec execute 13 sec latency 16707.308 ms 1 611 0.00 MB/sec execute 14 sec latency 17707.596 ms 1 611 0.00 MB/sec execute 15 sec latency 18708.146 ms 1 611 0.00 MB/sec execute 16 sec latency 19708.387 ms 1 611 0.00 MB/sec execute 17 sec latency 20715.401 ms Failover mds1 to oleg427-server mount facets: mds1 1 611 0.00 MB/sec execute 18 sec latency 21716.399 ms 1 611 0.00 MB/sec execute 19 sec latency 22717.185 ms 1 611 0.00 MB/sec execute 20 sec latency 23717.478 ms 1 611 0.00 MB/sec execute 21 sec latency 24717.690 ms 1 611 0.00 MB/sec execute 22 sec latency 25718.164 ms 1 611 0.00 MB/sec execute 23 sec latency 26718.403 ms 1 611 0.00 MB/sec execute 24 sec latency 27718.581 ms 1 611 0.00 MB/sec execute 25 sec latency 28718.805 ms 1 611 0.00 MB/sec execute 26 sec latency 29719.155 ms 1 611 0.00 MB/sec execute 27 sec latency 30719.464 ms 1 611 0.00 MB/sec execute 28 sec latency 31719.869 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 611 0.00 MB/sec execute 29 sec latency 32725.815 ms 1 611 0.00 MB/sec execute 30 sec latency 33726.169 ms 1 611 0.00 MB/sec execute 31 sec latency 34729.977 ms 1 611 0.00 MB/sec execute 32 sec latency 35730.486 ms 1 611 0.00 MB/sec execute 33 sec latency 36732.619 ms 1 611 0.00 MB/sec execute 34 sec latency 37734.322 ms 1 611 0.00 MB/sec execute 35 sec latency 38735.235 ms 1 611 0.00 MB/sec execute 36 sec latency 39738.205 ms 1 611 0.00 MB/sec execute 37 sec latency 40741.043 ms oleg427-server: oleg427-server.virtnet: executing set_default_debug -1 all 1 611 0.00 MB/sec execute 38 sec latency 41746.033 ms 1 611 0.00 MB/sec execute 39 sec latency 42750.805 ms pdsh@oleg427-client: oleg427-server: ssh exited with exit code 1 1 611 0.00 MB/sec execute 40 sec latency 43755.480 ms Started lustre-MDT0000 20:14:00 (1781223240) targets are mounted 20:14:00 (1781223240) facet_failover done 1 652 0.00 MB/sec execute 41 sec latency 43960.674 ms 1 691 0.01 MB/sec execute 42 sec latency 105.064 ms 1 712 0.01 MB/sec execute 43 sec latency 168.062 ms 1 738 0.01 MB/sec execute 44 sec latency 121.418 ms 1 769 0.01 MB/sec execute 45 sec latency 149.961 ms oleg427-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1 799 0.01 MB/sec execute 46 sec latency 160.969 ms 1 821 0.01 MB/sec execute 47 sec latency 130.423 ms 1 863 0.01 MB/sec execute 48 sec latency 138.065 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 884 0.01 MB/sec execute 49 sec latency 127.442 ms 1 884 0.01 MB/sec execute 50 sec latency 1095.021 ms 1 892 0.01 MB/sec execute 51 sec latency 1539.969 ms 1 916 0.02 MB/sec execute 52 sec latency 143.787 ms 1 943 0.02 MB/sec execute 53 sec latency 117.647 ms 1 971 0.02 MB/sec execute 54 sec latency 147.588 ms 1 1009 0.02 MB/sec execute 55 sec latency 120.275 ms 1 1074 0.03 MB/sec execute 56 sec latency 97.034 ms 1 1128 0.04 MB/sec execute 57 sec latency 85.941 ms 1 1163 0.04 MB/sec execute 58 sec latency 154.359 ms 1 1198 0.04 MB/sec execute 59 sec latency 107.952 ms 1 1233 0.03 MB/sec execute 60 sec latency 107.427 ms 1 1270 0.04 MB/sec execute 61 sec latency 135.185 ms 1 1389 0.08 MB/sec execute 62 sec latency 115.428 ms 1 1428 0.08 MB/sec execute 63 sec latency 85.159 ms 1 1468 0.08 MB/sec execute 64 sec latency 327.518 ms 1 1493 0.08 MB/sec execute 65 sec latency 183.943 ms 1 1538 0.08 MB/sec execute 66 sec latency 168.078 ms 1 1580 0.08 MB/sec execute 67 sec latency 81.794 ms 1 1618 0.08 MB/sec execute 68 sec latency 149.622 ms 1 1654 0.08 MB/sec execute 69 sec latency 119.554 ms 1 1695 0.07 MB/sec execute 70 sec latency 112.964 ms 1 1744 0.07 MB/sec execute 71 sec latency 119.346 ms dbench killed by signal 15 stopping dbench on /mnt/lustre at Thu Jun 11 20:14:30 EDT 2026 with return code 0 67151 pts/0 S+ 0:00 dbench -c client.txt 1 -D /mnt/lustre2/d26.replay-dual/run_dbench -t 100 killed dbench main pid 67151 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished