== replay-dual test 26: dbench and tar with mds failover ========================================================== 17:28:05 (1788643685) Starting client oleg226-client.virtnet: -o user_xattr,flock 192.168.202.126@tcp:/lustre /mnt/lustre Started clients oleg226-client.virtnet: 192.168.202.126@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 45168 Started dbench loop with 45169 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 2210560 2048 2206464 1% /mnt/lustre[MDT:0] lustre-OST0000_UUID 3771392 2048 3762176 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3771392 14336 3734528 1% /mnt/lustre[OST:1] filesystem_summary: 7542784 16384 7496704 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 Sep 5 17:28:10 EDT 2026 waiting for dbench pid 45237 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 31 1.05 MB/sec warmup 1 sec latency 59.106 ms 1 91 2.09 MB/sec warmup 2 sec latency 159.295 ms 1 126 1.87 MB/sec warmup 3 sec latency 185.810 ms 1 160 1.63 MB/sec warmup 4 sec latency 160.859 ms test_26 fail mds1 1 times 1 192 1.51 MB/sec warmup 5 sec latency 183.855 ms 1 222 1.43 MB/sec warmup 6 sec latency 135.253 ms Failing mds1 on oleg226-server 1 255 1.38 MB/sec warmup 7 sec latency 142.673 ms Stopping /mnt/lustre-mds1 (opts:) on oleg226-server 1 289 1.33 MB/sec warmup 8 sec latency 161.425 ms 1 313 1.27 MB/sec warmup 9 sec latency 492.779 ms 1 313 1.14 MB/sec warmup 10 sec latency 1505.550 ms 17:28:22 (1788643702) shut down 1 313 1.04 MB/sec warmup 11 sec latency 2505.818 ms facet: mds1 facet_host: oleg226-server facet_failover_host: oleg226-server 1 313 0.95 MB/sec warmup 12 sec latency 3505.986 ms 1 313 0.88 MB/sec warmup 13 sec latency 4506.199 ms 1 313 0.82 MB/sec warmup 14 sec latency 5507.934 ms 1 313 0.76 MB/sec warmup 15 sec latency 6508.339 ms 1 313 0.72 MB/sec warmup 16 sec latency 7508.572 ms 1 313 0.67 MB/sec warmup 17 sec latency 8512.027 ms 1 313 0.64 MB/sec warmup 18 sec latency 9513.443 ms 1 313 0.60 MB/sec warmup 19 sec latency 10513.664 ms 1 313 0.00 MB/sec execute 1 sec latency 12514.427 ms Failover mds1 to oleg226-server mount facets: mds1 1 313 0.00 MB/sec execute 2 sec latency 13514.579 ms 1 313 0.00 MB/sec execute 3 sec latency 14515.812 ms 1 313 0.00 MB/sec execute 4 sec latency 15516.260 ms 1 313 0.00 MB/sec execute 5 sec latency 16516.590 ms 1 313 0.00 MB/sec execute 6 sec latency 17516.783 ms Start mds1: mount -t lustre -o localrecov lustre-mdt1/mdt1 /mnt/lustre-mds1 1 313 0.00 MB/sec execute 7 sec latency 18517.011 ms 1 313 0.00 MB/sec execute 8 sec latency 19517.935 ms 1 313 0.00 MB/sec execute 9 sec latency 20518.126 ms 1 313 0.00 MB/sec execute 10 sec latency 21518.360 ms 1 313 0.00 MB/sec execute 11 sec latency 22518.549 ms 1 313 0.00 MB/sec execute 12 sec latency 23522.255 ms 1 313 0.00 MB/sec execute 13 sec latency 24522.571 ms oleg226-server: oleg226-server.virtnet: executing set_default_debug -1 all 1 313 0.00 MB/sec execute 14 sec latency 25522.890 ms 1 313 0.00 MB/sec execute 15 sec latency 26523.244 ms pdsh@oleg226-client: oleg226-server: ssh exited with exit code 1 1 313 0.00 MB/sec execute 16 sec latency 27523.510 ms Started lustre-MDT0000 17:28:47 (1788643727) targets are mounted 17:28:47 (1788643727) facet_failover done 1 313 0.00 MB/sec execute 17 sec latency 28523.724 ms 1 313 0.00 MB/sec execute 18 sec latency 29523.875 ms 1 313 0.00 MB/sec execute 19 sec latency 30525.232 ms 1 313 0.00 MB/sec execute 20 sec latency 31526.577 ms 1 313 0.00 MB/sec execute 21 sec latency 32527.831 ms 1 313 0.00 MB/sec execute 22 sec latency 33528.042 ms 1 313 0.00 MB/sec execute 23 sec latency 34531.659 ms 1 313 0.00 MB/sec execute 24 sec latency 35531.814 ms 1 313 0.00 MB/sec execute 25 sec latency 36532.038 ms 1 313 0.00 MB/sec execute 26 sec latency 37532.853 ms 1 313 0.00 MB/sec execute 27 sec latency 38537.483 ms 1 313 0.00 MB/sec execute 28 sec latency 39537.626 ms 1 315 0.00 MB/sec execute 29 sec latency 40347.868 ms 1 339 0.03 MB/sec execute 30 sec latency 282.870 ms 1 363 0.05 MB/sec execute 31 sec latency 211.148 ms 1 398 0.08 MB/sec execute 32 sec latency 128.479 ms 1 436 0.12 MB/sec execute 33 sec latency 122.153 ms 1 470 0.15 MB/sec execute 34 sec latency 142.036 ms 1 503 0.17 MB/sec execute 35 sec latency 208.231 ms oleg226-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 532 0.20 MB/sec execute 36 sec latency 237.510 ms 1 606 0.26 MB/sec execute 37 sec latency 160.609 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 648 0.25 MB/sec execute 38 sec latency 146.366 ms 1 671 0.25 MB/sec execute 39 sec latency 334.539 ms 1 713 0.24 MB/sec execute 40 sec latency 118.540 ms 1 743 0.24 MB/sec execute 41 sec latency 261.440 ms 1 791 0.24 MB/sec execute 42 sec latency 164.452 ms 1 827 0.23 MB/sec execute 43 sec latency 116.940 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 2210560 2304 2206208 1% /mnt/lustre[MDT:0] lustre-OST0000_UUID 3771392 8192 3750912 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3771392 41984 3648512 2% /mnt/lustre[OST:1] filesystem_summary: 7542784 50176 7399424 1% /mnt/lustre 1 876 0.23 MB/sec execute 44 sec latency 173.772 ms 1 913 0.23 MB/sec execute 45 sec latency 121.183 ms 1 943 0.22 MB/sec execute 46 sec latency 157.067 ms 1 980 0.22 MB/sec execute 47 sec latency 116.951 ms 1 1025 0.24 MB/sec execute 48 sec latency 232.904 ms test_26 fail mds1 2 times 1 1084 0.23 MB/sec execute 49 sec latency 71.990 ms 1 1128 0.23 MB/sec execute 50 sec latency 94.940 ms Failing mds1 on oleg226-server 1 1156 0.23 MB/sec execute 51 sec latency 155.155 ms Stopping /mnt/lustre-mds1 (opts:) on oleg226-server 1 1190 0.22 MB/sec execute 52 sec latency 91.055 ms 1 1229 0.22 MB/sec execute 53 sec latency 100.961 ms 1 1229 0.21 MB/sec execute 54 sec latency 1102.742 ms 1 1229 0.21 MB/sec execute 55 sec latency 2103.023 ms 17:29:26 (1788643766) shut down facet: mds1 facet_host: oleg226-server facet_failover_host: oleg226-server 1 1229 0.21 MB/sec execute 56 sec latency 3103.298 ms 1 1229 0.20 MB/sec execute 57 sec latency 4103.695 ms 1 1229 0.20 MB/sec execute 58 sec latency 5103.973 ms 1 1229 0.20 MB/sec execute 59 sec latency 6106.100 ms 1 1229 0.19 MB/sec execute 60 sec latency 7106.360 ms 1 1229 0.19 MB/sec execute 61 sec latency 8106.620 ms 1 1229 0.19 MB/sec execute 62 sec latency 9108.810 ms 1 1229 0.18 MB/sec execute 63 sec latency 10109.009 ms 1 1229 0.18 MB/sec execute 64 sec latency 11109.229 ms 1 1229 0.18 MB/sec execute 65 sec latency 12109.638 ms 1 1229 0.18 MB/sec execute 66 sec latency 13109.775 ms Failover mds1 to oleg226-server mount facets: mds1 1 1229 0.17 MB/sec execute 67 sec latency 14109.978 ms 1 1229 0.17 MB/sec execute 68 sec latency 15110.605 ms 1 1229 0.17 MB/sec execute 69 sec latency 16110.902 ms 1 1229 0.17 MB/sec execute 70 sec latency 17111.280 ms Start mds1: mount -t lustre -o localrecov lustre-mdt1/mdt1 /mnt/lustre-mds1 1 1229 0.16 MB/sec execute 71 sec latency 18112.367 ms 1 1229 0.16 MB/sec execute 72 sec latency 19112.629 ms 1 1229 0.16 MB/sec execute 73 sec latency 20112.804 ms 1 1229 0.16 MB/sec execute 74 sec latency 21112.955 ms 1 1229 0.15 MB/sec execute 75 sec latency 22113.132 ms 1 1229 0.15 MB/sec execute 76 sec latency 23113.432 ms 1 1242 0.15 MB/sec execute 77 sec latency 23494.374 ms oleg226-server: oleg226-server.virtnet: executing set_default_debug -1 all 1 1268 0.15 MB/sec execute 78 sec latency 176.856 ms 1 1394 0.18 MB/sec execute 79 sec latency 133.327 ms pdsh@oleg226-client: oleg226-server: ssh exited with exit code 1 1 1426 0.18 MB/sec execute 80 sec latency 127.384 ms Started lustre-MDT0000 17:29:51 (1788643791) targets are mounted 17:29:51 (1788643791) facet_failover done 1 1468 0.18 MB/sec execute 81 sec latency 124.683 ms 1 1499 0.18 MB/sec execute 82 sec latency 300.177 ms 1 1551 0.18 MB/sec execute 83 sec latency 115.351 ms 1 1603 0.17 MB/sec execute 84 sec latency 99.110 ms 1 1634 0.17 MB/sec execute 85 sec latency 323.876 ms 1 1672 0.17 MB/sec execute 86 sec latency 151.308 ms oleg226-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 1727 0.17 MB/sec execute 87 sec latency 101.306 ms 1 1785 0.17 MB/sec execute 88 sec latency 150.819 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 1828 0.17 MB/sec execute 89 sec latency 120.620 ms 1 1871 0.17 MB/sec execute 90 sec latency 115.103 ms 1 1936 0.16 MB/sec execute 91 sec latency 269.541 ms 1 1989 0.16 MB/sec execute 92 sec latency 108.383 ms 1 2018 0.16 MB/sec execute 93 sec latency 149.932 ms 1 2079 0.16 MB/sec execute 94 sec latency 134.253 ms 1 2125 0.16 MB/sec execute 95 sec latency 129.520 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 2210560 2688 2205824 1% /mnt/lustre[MDT:0] lustre-OST0000_UUID 3771392 9216 3752960 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3771392 64512 3682304 2% /mnt/lustre[OST:1] filesystem_summary: 7542784 73728 7435264 1% /mnt/lustre 1 2156 0.16 MB/sec execute 96 sec latency 132.387 ms 1 2190 0.16 MB/sec execute 97 sec latency 175.800 ms 1 2237 0.16 MB/sec execute 98 sec latency 222.511 ms 1 2326 0.16 MB/sec execute 99 sec latency 71.323 ms 1 cleanup 100 sec 1 cleanup 101 sec 1 cleanup 102 sec test_26 fail mds1 3 times 0 cleanup 103 sec Operation Count AvgLat MaxLat ---------------------------------------- NTCreateX 352 247.130 40347.852 Close 309 13.747 48.414 Rename 12 114.419 304.008 Unlink 31 26.921 63.349 Qpathinfo 310 16.101 107.581 Qfileinfo 94 1.764 21.785 Qfsinfo 37 3.245 17.242 Sfileinfo 38 56.550 103.686 Find 100 7.140 81.613 WriteX 355 14.753 87.398 ReadX 377 1.969 84.275 Flush 31 131.096 334.526 Throughput 0.164876 MB/sec 1 clients 1 procs max_latency=40347.868 ms stopping dbench on /mnt/lustre at Sat Sep 5 17:30:13 EDT 2026 with return code 0 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished Failing mds1 on oleg226-server Stopping /mnt/lustre-mds1 (opts:) on oleg226-server looking for dbench program /usr/bin/dbench found dbench client file /usr/share/dbench/client.txt 17:30:19 (1788643819) shut down facet: mds1 facet_host: oleg226-server facet_failover_host: oleg226-server Failover mds1 to oleg226-server mount facets: mds1 Start mds1: mount -t lustre -o localrecov lustre-mdt1/mdt1 /mnt/lustre-mds1 oleg226-server: oleg226-server.virtnet: executing set_default_debug -1 all pdsh@oleg226-client: oleg226-server: ssh exited with exit code 1 Started lustre-MDT0000 17:30:52 (1788643852) targets are mounted 17:30:52 (1788643852) facet_failover done '/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 Sep 5 17:31:00 EDT 2026 waiting for dbench pid 47802 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 37 1.24 MB/sec warmup 1 sec latency 131.043 ms oleg226-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 101 2.31 MB/sec warmup 2 sec latency 130.705 ms 1 137 2.00 MB/sec warmup 3 sec latency 131.659 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 164 1.69 MB/sec warmup 4 sec latency 192.842 ms 1 189 1.51 MB/sec warmup 5 sec latency 191.574 ms 1 224 1.43 MB/sec warmup 6 sec latency 148.263 ms 1 282 1.49 MB/sec warmup 7 sec latency 86.070 ms 1 324 1.47 MB/sec warmup 8 sec latency 139.323 ms 1 365 1.45 MB/sec warmup 9 sec latency 96.421 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 2210560 3072 2205440 1% /mnt/lustre[MDT:0] lustre-OST0000_UUID 3771392 8192 3732480 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3771392 53248 3668992 2% /mnt/lustre[OST:1] filesystem_summary: 7542784 61440 7401472 1% /mnt/lustre 1 413 1.46 MB/sec warmup 10 sec latency 117.340 ms 1 453 1.44 MB/sec warmup 11 sec latency 113.911 ms 1 502 1.45 MB/sec warmup 12 sec latency 103.939 ms 1 567 1.47 MB/sec warmup 13 sec latency 119.047 ms 1 664 1.51 MB/sec warmup 14 sec latency 74.035 ms 1 721 1.42 MB/sec warmup 15 sec latency 139.970 ms test_26 fail mds1 4 times 1 762 1.33 MB/sec warmup 16 sec latency 135.371 ms Failing mds1 on oleg226-server 1 793 1.26 MB/sec warmup 17 sec latency 165.820 ms Stopping /mnt/lustre-mds1 (opts:) on oleg226-server 1 847 1.20 MB/sec warmup 18 sec latency 106.939 ms 1 848 1.13 MB/sec warmup 19 sec latency 1002.539 ms 17:31:20 (1788643880) shut down facet: mds1 facet_host: oleg226-server facet_failover_host: oleg226-server 1 848 0.00 MB/sec execute 1 sec latency 3004.532 ms 1 848 0.00 MB/sec execute 2 sec latency 4007.746 ms 1 848 0.00 MB/sec execute 3 sec latency 5008.885 ms 1 848 0.00 MB/sec execute 4 sec latency 6013.181 ms 1 848 0.00 MB/sec execute 5 sec latency 7014.015 ms 1 848 0.00 MB/sec execute 6 sec latency 8015.336 ms 1 848 0.00 MB/sec execute 7 sec latency 9018.795 ms 1 848 0.00 MB/sec execute 8 sec latency 10018.996 ms 1 848 0.00 MB/sec execute 9 sec latency 11019.480 ms 1 848 0.00 MB/sec execute 10 sec latency 12019.686 ms Failover mds1 to oleg226-server mount facets: mds1 1 848 0.00 MB/sec execute 11 sec latency 13019.896 ms 1 848 0.00 MB/sec execute 12 sec latency 14020.360 ms 1 848 0.00 MB/sec execute 13 sec latency 15020.682 ms Start mds1: mount -t lustre -o localrecov lustre-mdt1/mdt1 /mnt/lustre-mds1 1 848 0.00 MB/sec execute 14 sec latency 16021.743 ms 1 848 0.00 MB/sec execute 15 sec latency 17022.120 ms 1 848 0.00 MB/sec execute 16 sec latency 18022.345 ms 1 848 0.00 MB/sec execute 17 sec latency 19022.515 ms 1 848 0.00 MB/sec execute 18 sec latency 20022.913 ms 1 848 0.00 MB/sec execute 19 sec latency 21023.441 ms oleg226-server: oleg226-server.virtnet: executing set_default_debug -1 all 1 848 0.00 MB/sec execute 20 sec latency 22023.612 ms pdsh@oleg226-client: oleg226-server: ssh exited with exit code 1 1 874 0.00 MB/sec execute 21 sec latency 22137.676 ms Started lustre-MDT0000 17:31:41 (1788643901) targets are mounted 17:31:41 (1788643901) facet_failover done 1 913 0.01 MB/sec execute 22 sec latency 110.268 ms 1 949 0.01 MB/sec execute 23 sec latency 217.775 ms 1 983 0.01 MB/sec execute 24 sec latency 195.363 ms 1 1011 0.03 MB/sec execute 25 sec latency 137.441 ms 1 1076 0.05 MB/sec execute 26 sec latency 142.175 ms oleg226-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 1136 0.05 MB/sec execute 27 sec latency 68.152 ms 1 1179 0.05 MB/sec execute 28 sec latency 116.895 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 1229 0.05 MB/sec execute 29 sec latency 70.525 ms 1 1278 0.05 MB/sec execute 30 sec latency 151.368 ms 1 1425 0.14 MB/sec execute 31 sec latency 144.888 ms 1 1481 0.14 MB/sec execute 32 sec latency 92.692 ms 1 1532 0.14 MB/sec execute 33 sec latency 197.267 ms 1 1597 0.13 MB/sec execute 34 sec latency 68.132 ms 1 1655 0.13 MB/sec execute 35 sec latency 175.092 ms 1 1749 0.13 MB/sec execute 36 sec latency 63.995 ms 1 1825 0.13 MB/sec execute 37 sec latency 82.608 ms 1 1884 0.13 MB/sec execute 38 sec latency 83.880 ms 1 1934 0.12 MB/sec execute 39 sec latency 271.909 ms 1 1984 0.12 MB/sec execute 40 sec latency 105.913 ms 1 2022 0.12 MB/sec execute 41 sec latency 106.580 ms 1 2098 0.12 MB/sec execute 42 sec latency 96.121 ms 1 2156 0.12 MB/sec execute 43 sec latency 103.037 ms 1 2191 0.12 MB/sec execute 44 sec latency 174.291 ms dbench killed by signal 15 stopping dbench on /mnt/lustre at Sat Sep 5 17:32:05 EDT 2026 with return code 0 1 2259 0.12 MB/sec execute 45 sec latency 152.115 ms 47802 pts/0 S+ 0:00 dbench -c client.txt 1 -D /mnt/lustre2/d26.replay-dual/run_dbench -t 100 killed dbench main pid 47802 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished