== replay-dual test 26: dbench and tar with mds failover ========================================================== 01:51:42 (1788933102) Starting client oleg122-client.virtnet: -o user_xattr,flock 192.168.201.122@tcp:/lustre /mnt/lustre Started clients oleg122-client.virtnet: 192.168.201.122@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 45264 Started dbench loop with 45266 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 3760128 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3771392 2048 3740672 1% /mnt/lustre[OST:1] filesystem_summary: 7542784 4096 7500800 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 Sep 9 01:51:48 EDT 2026 waiting for dbench pid 45333 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 29 0.98 MB/sec warmup 1 sec latency 181.539 ms 1 71 1.57 MB/sec warmup 2 sec latency 211.531 ms 1 111 1.74 MB/sec warmup 3 sec latency 168.799 ms 1 139 1.49 MB/sec warmup 4 sec latency 206.465 ms 1 173 1.40 MB/sec warmup 5 sec latency 148.772 ms test_26 fail mds1 1 times 1 199 1.30 MB/sec warmup 6 sec latency 171.901 ms 1 227 1.23 MB/sec warmup 7 sec latency 221.819 ms Failing mds1 on oleg122-server 1 248 1.17 MB/sec warmup 8 sec latency 245.892 ms Stopping /mnt/lustre-mds1 (opts:) on oleg122-server 1 279 1.15 MB/sec warmup 9 sec latency 172.824 ms 1 305 1.12 MB/sec warmup 10 sec latency 202.576 ms 1 313 1.04 MB/sec warmup 11 sec latency 866.420 ms 1 313 0.95 MB/sec warmup 12 sec latency 1868.197 ms 1 313 0.88 MB/sec warmup 13 sec latency 2868.427 ms 01:52:02 (1788933122) shut down facet: mds1 facet_host: oleg122-server facet_failover_host: oleg122-server 1 313 0.82 MB/sec warmup 14 sec latency 3869.938 ms 1 313 0.76 MB/sec warmup 15 sec latency 4870.224 ms 1 313 0.72 MB/sec warmup 16 sec latency 5870.514 ms 1 313 0.67 MB/sec warmup 17 sec latency 6873.018 ms 1 313 0.64 MB/sec warmup 18 sec latency 7876.515 ms 1 313 0.60 MB/sec warmup 19 sec latency 8878.362 ms 1 313 0.00 MB/sec execute 1 sec latency 10880.724 ms 1 313 0.00 MB/sec execute 2 sec latency 11880.938 ms 1 313 0.00 MB/sec execute 3 sec latency 12881.628 ms Failover mds1 to oleg122-server 1 313 0.00 MB/sec execute 4 sec latency 13882.568 ms mount facets: mds1 1 313 0.00 MB/sec execute 5 sec latency 14883.332 ms 1 313 0.00 MB/sec execute 6 sec latency 15907.507 ms 1 313 0.00 MB/sec execute 7 sec latency 16908.103 ms 1 313 0.00 MB/sec execute 8 sec latency 17909.413 ms 1 313 0.00 MB/sec execute 9 sec latency 18909.817 ms Start mds1: mount -t lustre -o localrecov lustre-mdt1/mdt1 /mnt/lustre-mds1 1 313 0.00 MB/sec execute 10 sec latency 19927.047 ms 1 313 0.00 MB/sec execute 11 sec latency 20927.446 ms 1 313 0.00 MB/sec execute 12 sec latency 21929.231 ms 1 313 0.00 MB/sec execute 13 sec latency 22929.476 ms 1 313 0.00 MB/sec execute 14 sec latency 23929.743 ms 1 313 0.00 MB/sec execute 15 sec latency 24930.046 ms 1 313 0.00 MB/sec execute 16 sec latency 25930.709 ms 1 313 0.00 MB/sec execute 17 sec latency 26931.038 ms 1 313 0.00 MB/sec execute 18 sec latency 27931.368 ms 1 313 0.00 MB/sec execute 19 sec latency 28931.591 ms 1 313 0.00 MB/sec execute 20 sec latency 29932.438 ms 1 313 0.00 MB/sec execute 21 sec latency 30932.809 ms 1 313 0.00 MB/sec execute 22 sec latency 31933.991 ms oleg122-server: oleg122-server.virtnet: executing set_default_debug -1 all 1 313 0.00 MB/sec execute 23 sec latency 32935.034 ms 1 313 0.00 MB/sec execute 24 sec latency 33935.626 ms pdsh@oleg122-client: oleg122-server: ssh exited with exit code 1 1 313 0.00 MB/sec execute 25 sec latency 34936.362 ms Started lustre-MDT0000 01:52:34 (1788933154) targets are mounted 01:52:34 (1788933154) facet_failover done 1 313 0.00 MB/sec execute 26 sec latency 35939.270 ms 1 313 0.00 MB/sec execute 27 sec latency 36940.742 ms 1 313 0.00 MB/sec execute 28 sec latency 37940.980 ms 1 313 0.00 MB/sec execute 29 sec latency 38943.319 ms 1 313 0.00 MB/sec execute 30 sec latency 39943.730 ms 1 313 0.00 MB/sec execute 31 sec latency 40944.037 ms 1 313 0.00 MB/sec execute 32 sec latency 41947.521 ms 1 323 0.01 MB/sec execute 33 sec latency 42609.629 ms 1 352 0.03 MB/sec execute 34 sec latency 168.890 ms 1 389 0.07 MB/sec execute 35 sec latency 121.034 ms 1 416 0.09 MB/sec execute 36 sec latency 203.601 ms 1 450 0.12 MB/sec execute 37 sec latency 162.803 ms 1 477 0.14 MB/sec execute 38 sec latency 241.326 ms oleg122-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 503 0.15 MB/sec execute 39 sec latency 204.340 ms 1 542 0.19 MB/sec execute 40 sec latency 159.370 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 612 0.23 MB/sec execute 41 sec latency 129.344 ms 1 658 0.23 MB/sec execute 42 sec latency 127.753 ms 1 673 0.22 MB/sec execute 43 sec latency 475.252 ms 1 699 0.22 MB/sec execute 44 sec latency 141.190 ms 1 723 0.22 MB/sec execute 45 sec latency 338.961 ms 1 759 0.21 MB/sec execute 46 sec latency 125.521 ms 1 789 0.21 MB/sec execute 47 sec latency 164.732 ms 1 801 0.21 MB/sec execute 48 sec latency 343.081 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 2210560 2304 2206208 1% /mnt/lustre[MDT:0] lustre-OST0000_UUID 3771392 10240 3746816 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3771392 38912 3670016 2% /mnt/lustre[OST:1] filesystem_summary: 7542784 49152 7416832 1% /mnt/lustre 1 825 0.20 MB/sec execute 49 sec latency 171.518 ms 1 873 0.20 MB/sec execute 50 sec latency 182.229 ms 1 892 0.20 MB/sec execute 51 sec latency 337.911 ms 1 916 0.20 MB/sec execute 52 sec latency 282.856 ms 1 949 0.19 MB/sec execute 53 sec latency 142.476 ms 1 980 0.19 MB/sec execute 54 sec latency 116.241 ms test_26 fail mds1 2 times 1 1007 0.19 MB/sec execute 55 sec latency 260.296 ms 1 1061 0.20 MB/sec execute 56 sec latency 115.771 ms 1 1092 0.20 MB/sec execute 57 sec latency 127.830 ms Failing mds1 on oleg122-server 1 1131 0.20 MB/sec execute 58 sec latency 111.934 ms Stopping /mnt/lustre-mds1 (opts:) on oleg122-server 1 1172 0.19 MB/sec execute 59 sec latency 128.977 ms 1 1190 0.19 MB/sec execute 60 sec latency 538.852 ms 1 1190 0.19 MB/sec execute 61 sec latency 1539.846 ms 1 1190 0.19 MB/sec execute 62 sec latency 2540.105 ms 01:53:12 (1788933192) shut down 1 1190 0.18 MB/sec execute 63 sec latency 3541.061 ms facet: mds1 facet_host: oleg122-server facet_failover_host: oleg122-server 1 1190 0.18 MB/sec execute 64 sec latency 4541.413 ms 1 1190 0.18 MB/sec execute 65 sec latency 5541.643 ms 1 1190 0.17 MB/sec execute 66 sec latency 6546.181 ms 1 1190 0.17 MB/sec execute 67 sec latency 7546.392 ms 1 1190 0.17 MB/sec execute 68 sec latency 8546.756 ms 1 1190 0.17 MB/sec execute 69 sec latency 9546.973 ms 1 1190 0.16 MB/sec execute 70 sec latency 10547.419 ms 1 1190 0.16 MB/sec execute 71 sec latency 11547.614 ms 1 1190 0.16 MB/sec execute 72 sec latency 12551.385 ms 1 1190 0.16 MB/sec execute 73 sec latency 13551.683 ms Failover mds1 to oleg122-server mount facets: mds1 1 1190 0.16 MB/sec execute 74 sec latency 14552.929 ms 1 1190 0.15 MB/sec execute 75 sec latency 15553.068 ms 1 1190 0.15 MB/sec execute 76 sec latency 16553.596 ms 1 1190 0.15 MB/sec execute 77 sec latency 17555.645 ms 1 1190 0.15 MB/sec execute 78 sec latency 18555.880 ms 1 1190 0.15 MB/sec execute 79 sec latency 19556.205 ms 1 1190 0.14 MB/sec execute 80 sec latency 20556.456 ms Start mds1: mount -t lustre -o localrecov lustre-mdt1/mdt1 /mnt/lustre-mds1 1 1190 0.14 MB/sec execute 81 sec latency 21557.017 ms 1 1190 0.14 MB/sec execute 82 sec latency 22557.224 ms 1 1190 0.14 MB/sec execute 83 sec latency 23557.510 ms 1 1190 0.14 MB/sec execute 84 sec latency 24559.278 ms 1 1190 0.14 MB/sec execute 85 sec latency 25559.594 ms 1 1190 0.13 MB/sec execute 86 sec latency 26559.789 ms 1 1190 0.13 MB/sec execute 87 sec latency 27560.284 ms 1 1190 0.13 MB/sec execute 88 sec latency 28561.244 ms 1 1190 0.13 MB/sec execute 89 sec latency 29561.463 ms 1 1190 0.13 MB/sec execute 90 sec latency 30561.693 ms 1 1190 0.13 MB/sec execute 91 sec latency 31561.845 ms 1 1190 0.13 MB/sec execute 92 sec latency 32562.005 ms 1 1190 0.12 MB/sec execute 93 sec latency 33562.184 ms 1 1190 0.12 MB/sec execute 94 sec latency 34565.498 ms 1 1190 0.12 MB/sec execute 95 sec latency 35566.320 ms oleg122-server: oleg122-server.virtnet: executing set_default_debug -1 all 1 1190 0.12 MB/sec execute 96 sec latency 36567.993 ms pdsh@oleg122-client: oleg122-server: ssh exited with exit code 1 1 1190 0.12 MB/sec execute 97 sec latency 37570.467 ms Started lustre-MDT0000 01:53:46 (1788933226) targets are mounted 01:53:46 (1788933226) facet_failover done 1 1190 0.12 MB/sec execute 98 sec latency 38570.760 ms 1 1216 0.12 MB/sec execute 99 sec latency 38796.367 ms 1 cleanup 100 sec 1 cleanup 101 sec 1 cleanup 102 sec 1 cleanup 103 sec 0 cleanup 103 sec Operation Count AvgLat MaxLat ---------------------------------------- NTCreateX 136 683.603 42609.615 Close 124 14.680 37.540 Rename 10 112.530 172.728 Unlink 14 31.306 77.494 Qpathinfo 86 26.214 115.969 Qfileinfo 55 2.124 9.877 Qfsinfo 30 5.074 34.599 Sfileinfo 30 69.490 162.874 Find 38 7.996 82.844 WriteX 264 15.152 84.577 ReadX 129 5.468 94.242 Flush 24 171.478 475.234 Throughput 0.116653 MB/sec 1 clients 1 procs max_latency=42609.629 ms stopping dbench on /mnt/lustre at Wed Sep 9 01:53:52 EDT 2026 with return code 0 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre oleg122-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 removed 'client.txt' /mnt/lustre dbench successfully finished mdc.lustre-MDT0000-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 Wed Sep 9 01:53:58 EDT 2026 waiting for dbench pid 47292 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 40 1.43 MB/sec warmup 1 sec latency 105.845 ms 1 111 2.61 MB/sec warmup 2 sec latency 116.846 ms 1 135 1.98 MB/sec warmup 3 sec latency 211.591 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 2210560 2560 2205952 1% /mnt/lustre[MDT:0] lustre-OST0000_UUID 3771392 11264 3731456 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3771392 38912 3701760 2% /mnt/lustre[OST:1] filesystem_summary: 7542784 50176 7433216 1% /mnt/lustre 1 157 1.63 MB/sec warmup 4 sec latency 229.103 ms 1 186 1.48 MB/sec warmup 5 sec latency 175.533 ms 1 216 1.39 MB/sec warmup 6 sec latency 158.034 ms 1 255 1.38 MB/sec warmup 7 sec latency 123.846 ms 1 297 1.37 MB/sec warmup 8 sec latency 153.123 ms 1 349 1.39 MB/sec warmup 9 sec latency 113.230 ms test_26 fail mds1 3 times 1 397 1.40 MB/sec warmup 10 sec latency 103.952 ms 1 429 1.37 MB/sec warmup 11 sec latency 167.424 ms Failing mds1 on oleg122-server 1 465 1.35 MB/sec warmup 12 sec latency 139.207 ms Stopping /mnt/lustre-mds1 (opts:) on oleg122-server 1 501 1.34 MB/sec warmup 13 sec latency 135.433 ms 1 541 1.36 MB/sec warmup 14 sec latency 202.610 ms 1 541 1.27 MB/sec warmup 15 sec latency 1202.792 ms 1 541 1.19 MB/sec warmup 16 sec latency 2203.030 ms 01:54:15 (1788933255) shut down facet: mds1 facet_host: oleg122-server facet_failover_host: oleg122-server 1 541 1.12 MB/sec warmup 17 sec latency 3203.403 ms 1 541 1.06 MB/sec warmup 18 sec latency 4204.093 ms 1 541 1.00 MB/sec warmup 19 sec latency 5204.418 ms 1 541 0.00 MB/sec execute 1 sec latency 7205.006 ms 1 541 0.00 MB/sec execute 2 sec latency 8206.173 ms 1 541 0.00 MB/sec execute 3 sec latency 9206.750 ms 1 541 0.00 MB/sec execute 4 sec latency 10207.860 ms 1 541 0.00 MB/sec execute 5 sec latency 11208.225 ms 1 541 0.00 MB/sec execute 6 sec latency 12213.324 ms Failover mds1 to oleg122-server 1 541 0.00 MB/sec execute 7 sec latency 13214.216 ms mount facets: mds1 1 541 0.00 MB/sec execute 8 sec latency 14214.396 ms 1 541 0.00 MB/sec execute 9 sec latency 15215.560 ms 1 541 0.00 MB/sec execute 10 sec latency 16216.454 ms 1 541 0.00 MB/sec execute 11 sec latency 17221.358 ms 1 541 0.00 MB/sec execute 12 sec latency 18227.126 ms 1 541 0.00 MB/sec execute 13 sec latency 19227.251 ms Start mds1: mount -t lustre -o localrecov lustre-mdt1/mdt1 /mnt/lustre-mds1 1 541 0.00 MB/sec execute 14 sec latency 20227.438 ms 1 541 0.00 MB/sec execute 15 sec latency 21227.651 ms 1 541 0.00 MB/sec execute 16 sec latency 22228.719 ms 1 541 0.00 MB/sec execute 17 sec latency 23228.935 ms 1 541 0.00 MB/sec execute 18 sec latency 24229.138 ms 1 541 0.00 MB/sec execute 19 sec latency 25229.551 ms 1 541 0.00 MB/sec execute 20 sec latency 26230.111 ms 1 541 0.00 MB/sec execute 21 sec latency 27235.227 ms 1 541 0.00 MB/sec execute 22 sec latency 28235.446 ms 1 541 0.00 MB/sec execute 23 sec latency 29241.733 ms 1 541 0.00 MB/sec execute 24 sec latency 30241.927 ms 1 541 0.00 MB/sec execute 25 sec latency 31243.304 ms 1 541 0.00 MB/sec execute 26 sec latency 32243.508 ms 1 541 0.00 MB/sec execute 27 sec latency 33243.732 ms oleg122-server: oleg122-server.virtnet: executing set_default_debug -1 all 1 541 0.00 MB/sec execute 28 sec latency 34247.647 ms 1 541 0.00 MB/sec execute 29 sec latency 35248.774 ms pdsh@oleg122-client: oleg122-server: ssh exited with exit code 1 1 541 0.00 MB/sec execute 30 sec latency 36249.044 ms Started lustre-MDT0000 01:54:49 (1788933289) targets are mounted 01:54:49 (1788933289) facet_failover done 1 541 0.00 MB/sec execute 31 sec latency 37249.786 ms 1 541 0.00 MB/sec execute 32 sec latency 38250.170 ms 1 541 0.00 MB/sec execute 33 sec latency 39254.069 ms 1 541 0.00 MB/sec execute 34 sec latency 40254.666 ms 1 542 0.00 MB/sec execute 35 sec latency 41180.502 ms 1 603 0.05 MB/sec execute 36 sec latency 295.284 ms 1 640 0.05 MB/sec execute 37 sec latency 179.550 ms 1 664 0.05 MB/sec execute 38 sec latency 182.811 ms 1 676 0.05 MB/sec execute 39 sec latency 264.462 ms 1 699 0.05 MB/sec execute 40 sec latency 144.252 ms 1 721 0.05 MB/sec execute 41 sec latency 357.412 ms oleg122-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 733 0.05 MB/sec execute 42 sec latency 419.685 ms 1 769 0.05 MB/sec execute 43 sec latency 164.850 ms 1 781 0.05 MB/sec execute 44 sec latency 276.770 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 791 0.05 MB/sec execute 45 sec latency 657.235 ms 1 804 0.05 MB/sec execute 46 sec latency 231.740 ms 1 825 0.05 MB/sec execute 47 sec latency 152.314 ms 1 863 0.05 MB/sec execute 48 sec latency 198.608 ms 1 878 0.05 MB/sec execute 49 sec latency 334.816 ms 1 903 0.05 MB/sec execute 50 sec latency 157.737 ms 1 957 0.05 MB/sec execute 51 sec latency 170.823 ms 1 1028 0.07 MB/sec execute 52 sec latency 91.085 ms 1 1126 0.07 MB/sec execute 53 sec latency 74.465 ms 1 1173 0.07 MB/sec execute 54 sec latency 92.657 ms 1 1221 0.07 MB/sec execute 55 sec latency 80.312 ms 1 1263 0.07 MB/sec execute 56 sec latency 101.524 ms 1 1387 0.12 MB/sec execute 57 sec latency 168.814 ms 1 1426 0.12 MB/sec execute 58 sec latency 196.010 ms 1 1468 0.12 MB/sec execute 59 sec latency 138.359 ms 1 1508 0.12 MB/sec execute 60 sec latency 247.963 ms 1 1560 0.11 MB/sec execute 61 sec latency 79.035 ms dbench killed by signal 15 stopping dbench on /mnt/lustre at Wed Sep 9 01:55:21 EDT 2026 with return code 0 1 1604 0.11 MB/sec execute 62 sec latency 84.876 ms 47292 pts/0 S+ 0:00 dbench -c client.txt 1 -D /mnt/lustre2/d26.replay-dual/run_dbench -t 100 killed dbench main pid 47292 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished