== replay-dual test 26: dbench and tar with mds failover ========================================================== 18:40:20 (1786833620) Starting client oleg412-client.virtnet: -o user_xattr,flock 192.168.204.112@tcp:/lustre /mnt/lustre Started clients oleg412-client.virtnet: 192.168.204.112@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 65683 Started dbench loop with 65685 striped dir -i0 -c2 -H fnv_1a_64 /mnt/lustre/d26.replay-dual/run_tar striped dir -i0 -c2 -H all_char /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 17948 3580756 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 1544 3605476 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 19492 7186232 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 18:40:27 EDT 2026 waiting for dbench pid 65762 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 12 0.00 MB/sec warmup 1 sec latency 29.399 ms 1 61 1.28 MB/sec warmup 2 sec latency 167.856 ms 1 113 1.75 MB/sec warmup 3 sec latency 142.407 ms 1 147 1.57 MB/sec warmup 4 sec latency 151.778 ms 1 171 1.40 MB/sec warmup 5 sec latency 175.774 ms 1 184 1.23 MB/sec warmup 6 sec latency 400.747 ms 1 207 1.16 MB/sec warmup 7 sec latency 448.387 ms 1 247 1.17 MB/sec warmup 8 sec latency 170.211 ms 1 287 1.19 MB/sec warmup 9 sec latency 113.269 ms test_26 fail mds1 1 times 1 323 1.17 MB/sec warmup 10 sec latency 130.777 ms 1 358 1.16 MB/sec warmup 11 sec latency 161.680 ms Failing mds1 on oleg412-server 1 389 1.15 MB/sec warmup 12 sec latency 218.719 ms Stopping /mnt/lustre-mds1 (opts:) on oleg412-server 1 421 1.14 MB/sec warmup 13 sec latency 159.133 ms 1 453 1.13 MB/sec warmup 14 sec latency 165.862 ms 1 492 1.14 MB/sec warmup 15 sec latency 120.684 ms 1 501 1.09 MB/sec warmup 16 sec latency 695.683 ms 18:40:43 (1786833643) shut down facet: mds1 facet_host: oleg412-server facet_failover_host: oleg412-server 1 501 1.03 MB/sec warmup 17 sec latency 1695.890 ms 1 501 0.97 MB/sec warmup 18 sec latency 2696.198 ms 1 501 0.92 MB/sec warmup 19 sec latency 3696.516 ms 1 501 0.00 MB/sec execute 1 sec latency 5696.954 ms 1 501 0.00 MB/sec execute 2 sec latency 6697.562 ms 1 501 0.00 MB/sec execute 3 sec latency 7697.731 ms 1 501 0.00 MB/sec execute 4 sec latency 8698.040 ms 1 501 0.00 MB/sec execute 5 sec latency 9698.234 ms 1 501 0.00 MB/sec execute 6 sec latency 10698.690 ms Failover mds1 to oleg412-server mount facets: mds1 1 501 0.00 MB/sec execute 7 sec latency 11726.118 ms 1 501 0.00 MB/sec execute 8 sec latency 12726.364 ms 1 501 0.00 MB/sec execute 9 sec latency 13726.486 ms 1 501 0.00 MB/sec execute 10 sec latency 14726.906 ms 1 501 0.00 MB/sec execute 11 sec latency 15727.155 ms 1 501 0.00 MB/sec execute 12 sec latency 16734.199 ms 1 501 0.00 MB/sec execute 13 sec latency 17735.480 ms 1 501 0.00 MB/sec execute 14 sec latency 18735.755 ms 1 501 0.00 MB/sec execute 15 sec latency 19737.174 ms 1 501 0.00 MB/sec execute 16 sec latency 20738.903 ms 1 501 0.00 MB/sec execute 17 sec latency 21739.189 ms 1 501 0.00 MB/sec execute 18 sec latency 22739.433 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 501 0.00 MB/sec execute 19 sec latency 23741.346 ms 1 501 0.00 MB/sec execute 20 sec latency 24744.587 ms 1 501 0.00 MB/sec execute 21 sec latency 25744.963 ms 1 501 0.00 MB/sec execute 22 sec latency 26747.110 ms 1 501 0.00 MB/sec execute 23 sec latency 27750.690 ms 1 501 0.00 MB/sec execute 24 sec latency 28751.011 ms 1 501 0.00 MB/sec execute 25 sec latency 29751.235 ms 1 501 0.00 MB/sec execute 26 sec latency 30751.550 ms 1 501 0.00 MB/sec execute 27 sec latency 31751.862 ms oleg412-server: oleg412-server.virtnet: executing set_default_debug -1 all 1 501 0.00 MB/sec execute 28 sec latency 32752.740 ms pdsh@oleg412-client: oleg412-server: ssh exited with exit code 1 1 501 0.00 MB/sec execute 29 sec latency 33753.521 ms Started lustre-MDT0000 18:41:17 (1786833677) targets are mounted 18:41:17 (1786833677) facet_failover done 1 501 0.00 MB/sec execute 30 sec latency 34754.386 ms 1 504 0.00 MB/sec execute 31 sec latency 35630.492 ms 1 552 0.05 MB/sec execute 32 sec latency 227.576 ms 1 640 0.11 MB/sec execute 33 sec latency 479.772 ms 1 681 0.11 MB/sec execute 34 sec latency 108.980 ms 1 712 0.11 MB/sec execute 35 sec latency 126.411 ms oleg412-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 743 0.11 MB/sec execute 36 sec latency 109.947 ms 1 786 0.11 MB/sec execute 37 sec latency 104.638 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 820 0.11 MB/sec execute 38 sec latency 118.532 ms 1 873 0.11 MB/sec execute 39 sec latency 106.371 ms 1 910 0.11 MB/sec execute 40 sec latency 103.060 ms 1 949 0.11 MB/sec execute 41 sec latency 131.542 ms 1 981 0.11 MB/sec execute 42 sec latency 132.946 ms 1 1036 0.13 MB/sec execute 43 sec latency 104.434 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2072 1269232 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 1880 1269424 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 36716 3569372 2% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 14704 3580644 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 51420 7150016 1% /mnt/lustre 1 1077 0.12 MB/sec execute 44 sec latency 94.424 ms 1 1127 0.12 MB/sec execute 45 sec latency 130.532 ms 1 1159 0.12 MB/sec execute 46 sec latency 127.029 ms 1 1172 0.12 MB/sec execute 47 sec latency 833.732 ms 1 1194 0.12 MB/sec execute 48 sec latency 912.666 ms 1 1219 0.11 MB/sec execute 49 sec latency 397.742 ms 1 1219 0.11 MB/sec execute 50 sec latency 1400.113 ms 1 1251 0.11 MB/sec execute 51 sec latency 1488.508 ms 1 1391 0.16 MB/sec execute 52 sec latency 76.458 ms 1 1432 0.16 MB/sec execute 53 sec latency 89.545 ms test_26 fail mds2 2 times 1 1481 0.16 MB/sec execute 54 sec latency 112.328 ms 1 1509 0.16 MB/sec execute 55 sec latency 138.989 ms Failing mds2 on oleg412-server 1 1564 0.15 MB/sec execute 56 sec latency 121.783 ms Stopping /mnt/lustre-mds2 (opts:) on oleg412-server 1 1612 0.15 MB/sec execute 57 sec latency 100.044 ms 1 1612 0.15 MB/sec execute 58 sec latency 1059.913 ms 1 1612 0.15 MB/sec execute 59 sec latency 2060.750 ms 1 1612 0.14 MB/sec execute 60 sec latency 3061.005 ms 1 1612 0.14 MB/sec execute 61 sec latency 4061.508 ms 1 1612 0.14 MB/sec execute 62 sec latency 5068.761 ms 1 1612 0.14 MB/sec execute 63 sec latency 6069.072 ms 1 1612 0.14 MB/sec execute 64 sec latency 7071.955 ms 18:41:51 (1786833711) shut down facet: mds2 facet_host: oleg412-server facet_failover_host: oleg412-server 1 1612 0.13 MB/sec execute 65 sec latency 8072.325 ms 1 1612 0.13 MB/sec execute 66 sec latency 9072.568 ms 1 1612 0.13 MB/sec execute 67 sec latency 10073.150 ms 1 1612 0.13 MB/sec execute 68 sec latency 11073.454 ms 1 1612 0.13 MB/sec execute 69 sec latency 12073.702 ms 1 1612 0.12 MB/sec execute 70 sec latency 13074.001 ms 1 1612 0.12 MB/sec execute 71 sec latency 14074.266 ms 1 1612 0.12 MB/sec execute 72 sec latency 15075.229 ms 1 1612 0.12 MB/sec execute 73 sec latency 16075.545 ms 1 1612 0.12 MB/sec execute 74 sec latency 17075.740 ms Failover mds2 to oleg412-server mount facets: mds2 1 1612 0.12 MB/sec execute 75 sec latency 18075.998 ms 1 1612 0.11 MB/sec execute 76 sec latency 19076.227 ms 1 1612 0.11 MB/sec execute 77 sec latency 20076.396 ms 1 1612 0.11 MB/sec execute 78 sec latency 21076.641 ms 1 1612 0.11 MB/sec execute 79 sec latency 22076.926 ms 1 1612 0.11 MB/sec execute 80 sec latency 23077.680 ms 1 1612 0.11 MB/sec execute 81 sec latency 24078.041 ms 1 1612 0.11 MB/sec execute 82 sec latency 25078.256 ms 1 1612 0.10 MB/sec execute 83 sec latency 26080.982 ms Start mds2: mount -t lustre -o localrecov /dev/mapper/mds2_flakey /mnt/lustre-mds2 1 1612 0.10 MB/sec execute 84 sec latency 27081.822 ms 1 1612 0.10 MB/sec execute 85 sec latency 28082.265 ms 1 1612 0.10 MB/sec execute 86 sec latency 29083.696 ms 1 1612 0.10 MB/sec execute 87 sec latency 30085.337 ms 1 1612 0.10 MB/sec execute 88 sec latency 31085.616 ms 1 1612 0.10 MB/sec execute 89 sec latency 32086.698 ms oleg412-server: oleg412-server.virtnet: executing set_default_debug -1 all 1 1612 0.10 MB/sec execute 90 sec latency 33086.954 ms pdsh@oleg412-client: oleg412-server: ssh exited with exit code 1 1 1612 0.10 MB/sec execute 91 sec latency 34087.277 ms Started lustre-MDT0001 18:42:19 (1786833739) targets are mounted 18:42:19 (1786833739) facet_failover done 1 1612 0.09 MB/sec execute 92 sec latency 35089.034 ms 1 1613 0.09 MB/sec execute 93 sec latency 36067.800 ms 1 1645 0.09 MB/sec execute 94 sec latency 167.622 ms 1 1673 0.09 MB/sec execute 95 sec latency 151.748 ms 1 1692 0.09 MB/sec execute 96 sec latency 247.721 ms 1 1727 0.09 MB/sec execute 97 sec latency 109.473 ms 1 1771 0.09 MB/sec execute 98 sec latency 108.779 ms 1 1810 0.09 MB/sec execute 99 sec latency 108.860 ms 1 cleanup 100 sec oleg412-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0001-mdc-*.mds_server_uuid 1475 0 1 cleanup 101 sec 1 cleanup 102 sec mdc.lustre-MDT0001-mdc-*.mds_server_uuid in FULL state after 0 sec 1 cleanup 103 sec 1 cleanup 104 sec 0 cleanup 105 sec Operation Count AvgLat MaxLat ---------------------------------------- NTCreateX 239 212.467 35630.479 Close 191 21.630 1488.471 Rename 11 104.704 247.683 Unlink 24 29.492 57.775 Qpathinfo 181 217.774 36067.768 Qfileinfo 53 3.016 14.015 Qfsinfo 33 3.392 17.285 Sfileinfo 34 65.306 130.508 Find 67 13.374 41.830 WriteX 187 13.262 110.085 ReadX 290 0.267 35.673 Flush 27 49.488 109.932 Throughput 0.0894202 MB/sec 1 clients 1 procs max_latency=36067.800 ms stopping dbench on /mnt/lustre at Sat Aug 15 18:42:32 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 fnv_1a_64 /mnt/lustre2/d26.replay-dual/run_dbench UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2296 1269008 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 2092 1269212 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 29580 3577380 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 22908 3583152 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 52488 7160532 1% /mnt/lustre 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 Sat Aug 15 18:42:42 EDT 2026 waiting for dbench pid 67952 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 77.381 ms 1 31 0.52 MB/sec warmup 2 sec latency 701.784 ms 1 52 0.70 MB/sec warmup 3 sec latency 1252.588 ms 1 103 1.19 MB/sec warmup 4 sec latency 131.870 ms 1 137 1.20 MB/sec warmup 5 sec latency 171.226 ms 1 157 1.09 MB/sec warmup 6 sec latency 260.675 ms test_26 fail mds1 3 times 1 181 1.04 MB/sec warmup 7 sec latency 174.465 ms 1 190 0.95 MB/sec warmup 8 sec latency 741.657 ms Failing mds1 on oleg412-server 1 215 0.93 MB/sec warmup 9 sec latency 220.343 ms Stopping /mnt/lustre-mds1 (opts:) on oleg412-server 1 256 0.96 MB/sec warmup 10 sec latency 120.851 ms 1 293 0.98 MB/sec warmup 11 sec latency 177.068 ms 1 339 1.02 MB/sec warmup 12 sec latency 156.220 ms 1 339 0.94 MB/sec warmup 13 sec latency 1044.771 ms 1 339 0.87 MB/sec warmup 14 sec latency 2044.923 ms 1 339 0.82 MB/sec warmup 15 sec latency 3045.148 ms 1 339 0.77 MB/sec warmup 16 sec latency 4045.544 ms 1 339 0.72 MB/sec warmup 17 sec latency 5046.529 ms 1 339 0.68 MB/sec warmup 18 sec latency 6046.727 ms 1 339 0.64 MB/sec warmup 19 sec latency 7048.392 ms 18:43:02 (1786833782) shut down facet: mds1 facet_host: oleg412-server facet_failover_host: oleg412-server 1 339 0.00 MB/sec execute 1 sec latency 9052.691 ms 1 339 0.00 MB/sec execute 2 sec latency 10054.796 ms 1 339 0.00 MB/sec execute 3 sec latency 11055.241 ms 1 339 0.00 MB/sec execute 4 sec latency 12055.544 ms 1 339 0.00 MB/sec execute 5 sec latency 13055.849 ms 1 339 0.00 MB/sec execute 6 sec latency 14056.212 ms 1 339 0.00 MB/sec execute 7 sec latency 15057.129 ms 1 339 0.00 MB/sec execute 8 sec latency 16057.366 ms 1 339 0.00 MB/sec execute 9 sec latency 17057.569 ms 1 339 0.00 MB/sec execute 10 sec latency 18057.945 ms Failover mds1 to oleg412-server mount facets: mds1 1 339 0.00 MB/sec execute 11 sec latency 19058.266 ms 1 339 0.00 MB/sec execute 12 sec latency 20058.862 ms 1 339 0.00 MB/sec execute 13 sec latency 21059.209 ms 1 339 0.00 MB/sec execute 14 sec latency 22059.498 ms 1 339 0.00 MB/sec execute 15 sec latency 23059.750 ms 1 339 0.00 MB/sec execute 16 sec latency 24060.041 ms 1 339 0.00 MB/sec execute 17 sec latency 25061.072 ms 1 339 0.00 MB/sec execute 18 sec latency 26061.245 ms 1 339 0.00 MB/sec execute 19 sec latency 27063.891 ms 1 339 0.00 MB/sec execute 20 sec latency 28064.303 ms 1 339 0.00 MB/sec execute 21 sec latency 29064.567 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 339 0.00 MB/sec execute 22 sec latency 30064.821 ms 1 339 0.00 MB/sec execute 23 sec latency 31065.163 ms 1 339 0.00 MB/sec execute 24 sec latency 32066.081 ms 1 339 0.00 MB/sec execute 25 sec latency 33073.959 ms 1 339 0.00 MB/sec execute 26 sec latency 34074.571 ms 1 339 0.00 MB/sec execute 27 sec latency 35075.071 ms 1 339 0.00 MB/sec execute 28 sec latency 36075.812 ms 1 339 0.00 MB/sec execute 29 sec latency 37079.767 ms 1 339 0.00 MB/sec execute 30 sec latency 38080.597 ms 1 339 0.00 MB/sec execute 31 sec latency 39080.963 ms 1 339 0.00 MB/sec execute 32 sec latency 40083.105 ms oleg412-server: oleg412-server.virtnet: executing set_default_debug -1 all 1 339 0.00 MB/sec execute 33 sec latency 41083.407 ms pdsh@oleg412-client: oleg412-server: ssh exited with exit code 1 1 339 0.00 MB/sec execute 34 sec latency 42083.627 ms Started lustre-MDT0000 18:43:37 (1786833817) targets are mounted 18:43:37 (1786833817) facet_failover done 1 343 0.00 MB/sec execute 35 sec latency 42955.982 ms 1 389 0.04 MB/sec execute 36 sec latency 107.348 ms 1 427 0.08 MB/sec execute 37 sec latency 117.326 ms 1 465 0.10 MB/sec execute 38 sec latency 155.396 ms 1 503 0.13 MB/sec execute 39 sec latency 129.784 ms 1 541 0.17 MB/sec execute 40 sec latency 134.600 ms 1 609 0.21 MB/sec execute 41 sec latency 161.378 ms oleg412-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 661 0.21 MB/sec execute 42 sec latency 95.089 ms 1 694 0.21 MB/sec execute 43 sec latency 113.684 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 720 0.20 MB/sec execute 44 sec latency 166.687 ms 1 747 0.20 MB/sec execute 45 sec latency 159.434 ms 1 784 0.20 MB/sec execute 46 sec latency 118.456 ms 1 821 0.20 MB/sec execute 47 sec latency 121.043 ms 1 874 0.20 MB/sec execute 48 sec latency 129.118 ms tar: Unexpected EOF in archive tar: Unexpected EOF in archive 1 884 0.19 MB/sec execute 49 sec latency 746.679 ms 1 888 0.19 MB/sec execute 50 sec latency 1478.676 ms 1 914 0.19 MB/sec execute 51 sec latency 113.834 ms 1 949 0.18 MB/sec execute 52 sec latency 95.472 ms 1 980 0.18 MB/sec execute 53 sec latency 129.908 ms 1 1045 0.20 MB/sec execute 54 sec latency 132.715 ms 1 1076 0.19 MB/sec execute 55 sec latency 310.948 ms 1 1118 0.19 MB/sec execute 56 sec latency 142.591 ms 1 1142 0.19 MB/sec execute 57 sec latency 201.750 ms 1 1176 0.19 MB/sec execute 58 sec latency 121.472 ms 1 1211 0.18 MB/sec execute 59 sec latency 111.905 ms 1 1246 0.18 MB/sec execute 60 sec latency 120.846 ms tar: Error is not recoverable: exiting now dbench killed by signal 15 stopping dbench on /mnt/lustre at Sat Aug 15 18:44:03 EDT 2026 with return code 0 67952 pts/0 S+ 0:00 dbench -c client.txt 1 -D /mnt/lustre2/d26.replay-dual/run_dbench -t 100 1 1376 0.22 MB/sec execute 61 sec latency 140.096 ms killed dbench main pid 67952 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished