== replay-dual test 26: dbench and tar with mds failover ========================================================== 01:53:55 (1787896435) Starting client oleg331-client.virtnet: -o user_xattr,flock 192.168.203.131@tcp:/lustre /mnt/lustre Started clients oleg331-client.virtnet: 192.168.203.131@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 65629 Started dbench loop with 65630 striped dir -i0 -c2 -H crush /mnt/lustre/d26.replay-dual/run_tar striped dir -i0 -c2 -H fnv_1a_64 /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 Fri Aug 28 01:54:01 EDT 2026 waiting for dbench pid 65708 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 17.184 ms 1 74 1.56 MB/sec warmup 2 sec latency 178.214 ms 1 121 1.83 MB/sec warmup 3 sec latency 137.820 ms 1 155 1.63 MB/sec warmup 4 sec latency 170.955 ms 1 184 1.47 MB/sec warmup 5 sec latency 240.874 ms 1 207 1.35 MB/sec warmup 6 sec latency 477.203 ms 1 248 1.34 MB/sec warmup 7 sec latency 120.031 ms 1 297 1.37 MB/sec warmup 8 sec latency 95.169 ms test_26 fail mds1 1 times 1 332 1.33 MB/sec warmup 9 sec latency 123.883 ms Failing mds1 on oleg331-server 1 365 1.30 MB/sec warmup 10 sec latency 165.103 ms Stopping /mnt/lustre-mds1 (opts:) on oleg331-server 1 397 1.28 MB/sec warmup 11 sec latency 172.992 ms 1 428 1.26 MB/sec warmup 12 sec latency 324.176 ms 1 428 1.16 MB/sec warmup 13 sec latency 1324.335 ms 01:54:15 (1787896455) shut down facet: mds1 facet_host: oleg331-server facet_failover_host: oleg331-server 1 428 1.08 MB/sec warmup 14 sec latency 2330.303 ms 1 428 1.01 MB/sec warmup 15 sec latency 3331.240 ms 1 428 0.94 MB/sec warmup 16 sec latency 4333.473 ms 1 428 0.89 MB/sec warmup 17 sec latency 5333.872 ms 1 428 0.84 MB/sec warmup 18 sec latency 6334.136 ms 1 428 0.79 MB/sec warmup 19 sec latency 7334.329 ms 1 428 0.00 MB/sec execute 1 sec latency 9334.806 ms 1 428 0.00 MB/sec execute 2 sec latency 10335.405 ms 1 428 0.00 MB/sec execute 3 sec latency 11335.582 ms 1 428 0.00 MB/sec execute 4 sec latency 12335.753 ms Failover mds1 to oleg331-server mount facets: mds1 1 428 0.00 MB/sec execute 5 sec latency 13335.959 ms 1 428 0.00 MB/sec execute 6 sec latency 14337.407 ms 1 428 0.00 MB/sec execute 7 sec latency 15337.582 ms 1 428 0.00 MB/sec execute 8 sec latency 16337.831 ms 1 428 0.00 MB/sec execute 9 sec latency 17338.092 ms 1 428 0.00 MB/sec execute 10 sec latency 18338.339 ms 1 428 0.00 MB/sec execute 11 sec latency 19339.176 ms 1 428 0.00 MB/sec execute 12 sec latency 20342.048 ms 1 428 0.00 MB/sec execute 13 sec latency 21342.297 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 428 0.00 MB/sec execute 14 sec latency 22342.506 ms 1 428 0.00 MB/sec execute 15 sec latency 23342.704 ms 1 428 0.00 MB/sec execute 16 sec latency 24343.102 ms 1 428 0.00 MB/sec execute 17 sec latency 25343.446 ms 1 428 0.00 MB/sec execute 18 sec latency 26343.815 ms 1 428 0.00 MB/sec execute 19 sec latency 27344.004 ms 1 428 0.00 MB/sec execute 20 sec latency 28344.205 ms 1 428 0.00 MB/sec execute 21 sec latency 29346.154 ms 1 428 0.00 MB/sec execute 22 sec latency 30348.371 ms 1 428 0.00 MB/sec execute 23 sec latency 31348.562 ms 1 428 0.00 MB/sec execute 24 sec latency 32348.809 ms 1 428 0.00 MB/sec execute 25 sec latency 33349.192 ms 1 428 0.00 MB/sec execute 26 sec latency 34349.371 ms oleg331-server: oleg331-server.virtnet: executing set_default_debug -1 all 1 428 0.00 MB/sec execute 27 sec latency 35349.844 ms pdsh@oleg331-client: oleg331-server: ssh exited with exit code 1 1 428 0.00 MB/sec execute 28 sec latency 36351.813 ms Started lustre-MDT0000 01:54:50 (1787896490) targets are mounted 01:54:50 (1787896490) facet_failover done 1 428 0.00 MB/sec execute 29 sec latency 37352.890 ms 1 438 0.01 MB/sec execute 30 sec latency 37964.477 ms 1 469 0.04 MB/sec execute 31 sec latency 177.153 ms 1 501 0.07 MB/sec execute 32 sec latency 153.578 ms 1 522 0.09 MB/sec execute 33 sec latency 211.547 ms 1 552 0.12 MB/sec execute 34 sec latency 495.373 ms 1 615 0.17 MB/sec execute 35 sec latency 506.835 ms oleg331-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 661 0.17 MB/sec execute 36 sec latency 111.976 ms 1 692 0.16 MB/sec execute 37 sec latency 150.810 ms 1 713 0.16 MB/sec execute 38 sec latency 149.792 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 737 0.16 MB/sec execute 39 sec latency 129.691 ms 1 765 0.16 MB/sec execute 40 sec latency 128.572 ms 1 784 0.15 MB/sec execute 41 sec latency 174.185 ms 1 812 0.15 MB/sec execute 42 sec latency 134.849 ms 1 859 0.15 MB/sec execute 43 sec latency 169.140 ms 1 888 0.15 MB/sec execute 44 sec latency 117.564 ms 1 912 0.15 MB/sec execute 45 sec latency 179.586 ms 1 933 0.14 MB/sec execute 46 sec latency 134.269 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2096 1269208 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 1904 1269400 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 37308 3566716 2% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 16720 3587560 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 54028 7154276 1% /mnt/lustre 1 955 0.14 MB/sec execute 47 sec latency 179.040 ms 1 981 0.14 MB/sec execute 48 sec latency 192.317 ms 1 1028 0.16 MB/sec execute 49 sec latency 123.760 ms 1 1064 0.16 MB/sec execute 50 sec latency 121.757 ms 1 1101 0.15 MB/sec execute 51 sec latency 117.561 ms 1 1138 0.15 MB/sec execute 52 sec latency 103.037 ms 1 1172 0.15 MB/sec execute 53 sec latency 178.361 ms 1 1182 0.15 MB/sec execute 54 sec latency 729.832 ms 1 1223 0.14 MB/sec execute 55 sec latency 108.358 ms 1 1262 0.14 MB/sec execute 56 sec latency 136.089 ms 1 1391 0.19 MB/sec execute 57 sec latency 72.407 ms test_26 fail mds2 2 times 1 1428 0.19 MB/sec execute 58 sec latency 118.578 ms 1 1470 0.18 MB/sec execute 59 sec latency 107.060 ms Failing mds2 on oleg331-server 1 1502 0.18 MB/sec execute 60 sec latency 134.493 ms Stopping /mnt/lustre-mds2 (opts:) on oleg331-server 1 1538 0.18 MB/sec execute 61 sec latency 117.954 ms 1 1570 0.18 MB/sec execute 62 sec latency 100.095 ms 1 1616 0.17 MB/sec execute 63 sec latency 101.181 ms 1 1660 0.17 MB/sec execute 64 sec latency 132.825 ms 01:55:26 (1787896526) shut down facet: mds2 facet_host: oleg331-server facet_failover_host: oleg331-server 1 1689 0.17 MB/sec execute 65 sec latency 160.946 ms 1 1749 0.17 MB/sec execute 66 sec latency 153.339 ms 1 1808 0.17 MB/sec execute 67 sec latency 107.746 ms 1 1859 0.16 MB/sec execute 68 sec latency 113.893 ms 1 1923 0.16 MB/sec execute 69 sec latency 96.684 ms 1 1995 0.16 MB/sec execute 70 sec latency 95.427 ms 1 2034 0.16 MB/sec execute 71 sec latency 113.682 ms 1 2116 0.16 MB/sec execute 72 sec latency 91.486 ms 1 2162 0.16 MB/sec execute 73 sec latency 101.552 ms 1 2220 0.16 MB/sec execute 74 sec latency 88.236 ms Failover mds2 to oleg331-server mount facets: mds2 1 2259 0.16 MB/sec execute 75 sec latency 614.886 ms 1 2259 0.15 MB/sec execute 76 sec latency 1615.447 ms 1 2259 0.15 MB/sec execute 77 sec latency 2616.434 ms 1 2259 0.15 MB/sec execute 78 sec latency 3618.228 ms 1 2259 0.15 MB/sec execute 79 sec latency 4618.496 ms 1 2259 0.15 MB/sec execute 80 sec latency 5619.782 ms 1 2259 0.14 MB/sec execute 81 sec latency 6620.074 ms 1 2259 0.14 MB/sec execute 82 sec latency 7620.356 ms 1 2259 0.14 MB/sec execute 83 sec latency 8620.916 ms 1 2259 0.14 MB/sec execute 84 sec latency 9621.209 ms 1 2259 0.14 MB/sec execute 85 sec latency 10623.668 ms Start mds2: mount -t lustre -o localrecov /dev/mapper/mds2_flakey /mnt/lustre-mds2 1 2259 0.14 MB/sec execute 86 sec latency 11623.881 ms 1 2259 0.13 MB/sec execute 87 sec latency 12624.813 ms 1 2259 0.13 MB/sec execute 88 sec latency 13627.841 ms 1 2259 0.13 MB/sec execute 89 sec latency 14628.342 ms 1 2259 0.13 MB/sec execute 90 sec latency 15628.836 ms 1 2259 0.13 MB/sec execute 91 sec latency 16629.220 ms oleg331-server: oleg331-server.virtnet: executing set_default_debug -1 all 1 2259 0.13 MB/sec execute 92 sec latency 17629.451 ms pdsh@oleg331-client: oleg331-server: ssh exited with exit code 1 1 2259 0.13 MB/sec execute 93 sec latency 18630.184 ms Started lustre-MDT0001 01:55:55 (1787896555) targets are mounted 01:55:55 (1787896555) facet_failover done 1 2259 0.12 MB/sec execute 94 sec latency 19630.430 ms 1 2326 0.13 MB/sec execute 95 sec latency 19956.298 ms 1 2358 0.13 MB/sec execute 96 sec latency 117.093 ms 1 2394 0.13 MB/sec execute 97 sec latency 132.400 ms 1 2426 0.13 MB/sec execute 98 sec latency 142.450 ms 1 2460 0.13 MB/sec execute 99 sec latency 140.914 ms 1 cleanup 100 sec oleg331-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 1 cleanup 103 sec mdc.lustre-MDT0001-mdc-*.mds_server_uuid in FULL state after 0 sec 1 cleanup 104 sec 0 cleanup 105 sec Operation Count AvgLat MaxLat ---------------------------------------- NTCreateX 358 117.777 19956.279 Close 309 137.598 37964.443 Rename 15 117.288 159.376 Unlink 37 31.257 63.820 Qpathinfo 329 18.008 129.413 Qfileinfo 89 2.512 17.795 Qfsinfo 41 6.186 35.069 Sfileinfo 47 75.208 145.808 Find 112 14.168 84.281 WriteX 312 15.499 90.651 ReadX 385 2.895 97.382 Flush 34 62.884 126.934 Throughput 0.13299 MB/sec 1 clients 1 procs max_latency=37964.477 ms stopping dbench on /mnt/lustre at Fri Aug 28 01:56:06 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 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 2312 1268992 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 2092 1269212 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 1896 3604304 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 20164 3585516 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 22060 7189820 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 Fri Aug 28 01:56:16 EDT 2026 waiting for dbench pid 67886 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 20.520 ms 1 52 1.05 MB/sec warmup 2 sec latency 82.461 ms 1 91 1.39 MB/sec warmup 3 sec latency 391.034 ms 1 91 1.05 MB/sec warmup 4 sec latency 1391.375 ms 1 113 1.05 MB/sec warmup 5 sec latency 1864.325 ms 1 137 1.00 MB/sec warmup 6 sec latency 168.591 ms 1 181 1.04 MB/sec warmup 7 sec latency 223.043 ms test_26 fail mds1 3 times 1 190 0.95 MB/sec warmup 8 sec latency 653.730 ms 1 210 0.90 MB/sec warmup 9 sec latency 245.983 ms 1 236 0.90 MB/sec warmup 10 sec latency 176.517 ms Failing mds1 on oleg331-server 1 261 0.89 MB/sec warmup 11 sec latency 187.301 ms 1 287 0.89 MB/sec warmup 12 sec latency 225.422 ms Stopping /mnt/lustre-mds1 (opts:) on oleg331-server 1 309 0.87 MB/sec warmup 13 sec latency 230.989 ms 1 339 0.87 MB/sec warmup 14 sec latency 183.841 ms 1 339 0.82 MB/sec warmup 15 sec latency 1053.487 ms 1 339 0.76 MB/sec warmup 16 sec latency 2054.449 ms 1 339 0.72 MB/sec warmup 17 sec latency 3057.095 ms 1 339 0.68 MB/sec warmup 18 sec latency 4057.306 ms 1 339 0.64 MB/sec warmup 19 sec latency 5057.517 ms 1 339 0.00 MB/sec execute 1 sec latency 7058.438 ms 01:56:38 (1787896598) shut down facet: mds1 facet_host: oleg331-server facet_failover_host: oleg331-server 1 339 0.00 MB/sec execute 2 sec latency 8058.806 ms 1 339 0.00 MB/sec execute 3 sec latency 9060.216 ms 1 339 0.00 MB/sec execute 4 sec latency 10061.862 ms 1 339 0.00 MB/sec execute 5 sec latency 11062.049 ms 1 339 0.00 MB/sec execute 6 sec latency 12063.824 ms 1 339 0.00 MB/sec execute 7 sec latency 13064.102 ms 1 339 0.00 MB/sec execute 8 sec latency 14064.435 ms 1 339 0.00 MB/sec execute 9 sec latency 15064.630 ms 1 339 0.00 MB/sec execute 10 sec latency 16065.104 ms 1 339 0.00 MB/sec execute 11 sec latency 17065.776 ms Failover mds1 to oleg331-server 1 339 0.00 MB/sec execute 12 sec latency 18066.652 ms mount facets: mds1 1 339 0.00 MB/sec execute 13 sec latency 19067.355 ms 1 339 0.00 MB/sec execute 14 sec latency 20072.840 ms 1 339 0.00 MB/sec execute 15 sec latency 21074.098 ms 1 339 0.00 MB/sec execute 16 sec latency 22074.511 ms 1 339 0.00 MB/sec execute 17 sec latency 23075.260 ms 1 339 0.00 MB/sec execute 18 sec latency 24077.455 ms 1 339 0.00 MB/sec execute 19 sec latency 25081.821 ms 1 339 0.00 MB/sec execute 20 sec latency 26082.008 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 339 0.00 MB/sec execute 21 sec latency 27083.153 ms 1 339 0.00 MB/sec execute 22 sec latency 28083.376 ms 1 339 0.00 MB/sec execute 23 sec latency 29084.200 ms 1 339 0.00 MB/sec execute 24 sec latency 30084.482 ms 1 339 0.00 MB/sec execute 25 sec latency 31084.735 ms 1 339 0.00 MB/sec execute 26 sec latency 32085.729 ms 1 339 0.00 MB/sec execute 27 sec latency 33086.255 ms 1 339 0.00 MB/sec execute 28 sec latency 34087.801 ms 1 339 0.00 MB/sec execute 29 sec latency 35088.028 ms 1 339 0.00 MB/sec execute 30 sec latency 36121.023 ms 1 339 0.00 MB/sec execute 31 sec latency 37121.316 ms 1 339 0.00 MB/sec execute 32 sec latency 38121.687 ms 1 339 0.00 MB/sec execute 33 sec latency 39121.990 ms 1 339 0.00 MB/sec execute 34 sec latency 40122.215 ms oleg331-server: oleg331-server.virtnet: executing set_default_debug -1 all 1 339 0.00 MB/sec execute 35 sec latency 41129.071 ms pdsh@oleg331-client: oleg331-server: ssh exited with exit code 1 1 339 0.00 MB/sec execute 36 sec latency 42139.481 ms 1 339 0.00 MB/sec execute 37 sec latency 43144.210 ms Started lustre-MDT0000 01:57:14 (1787896634) targets are mounted 01:57:14 (1787896634) facet_failover done 1 365 0.02 MB/sec execute 38 sec latency 43374.640 ms 1 398 0.05 MB/sec execute 39 sec latency 178.128 ms 1 435 0.08 MB/sec execute 40 sec latency 157.059 ms 1 462 0.09 MB/sec execute 41 sec latency 167.113 ms 1 501 0.12 MB/sec execute 42 sec latency 123.796 ms 1 538 0.15 MB/sec execute 43 sec latency 148.230 ms 1 616 0.20 MB/sec execute 44 sec latency 107.229 ms oleg331-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 664 0.20 MB/sec execute 45 sec latency 105.877 ms 1 699 0.19 MB/sec execute 46 sec latency 127.844 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 731 0.19 MB/sec execute 47 sec latency 157.481 ms 1 769 0.19 MB/sec execute 48 sec latency 114.667 ms 1 803 0.19 MB/sec execute 49 sec latency 136.516 ms 1 849 0.19 MB/sec execute 50 sec latency 88.510 ms 1 882 0.18 MB/sec execute 51 sec latency 121.608 ms 1 884 0.18 MB/sec execute 52 sec latency 985.422 ms 1 903 0.18 MB/sec execute 53 sec latency 1126.425 ms 1 938 0.18 MB/sec execute 54 sec latency 138.371 ms 1 977 0.17 MB/sec execute 55 sec latency 114.171 ms 1 1036 0.19 MB/sec execute 56 sec latency 76.271 ms tar: Unexpected EOF in archive tar: Unexpected EOF in archive 1 1086 0.19 MB/sec execute 57 sec latency 74.338 ms 1 1134 0.18 MB/sec execute 58 sec latency 78.992 ms 1 1177 0.18 MB/sec execute 59 sec latency 109.978 ms 1 1215 0.18 MB/sec execute 60 sec latency 89.457 ms 1 1251 0.18 MB/sec execute 61 sec latency 111.650 ms 1 1382 0.22 MB/sec execute 62 sec latency 86.056 ms 1 1422 0.22 MB/sec execute 63 sec latency 96.790 ms 1 1467 0.21 MB/sec execute 64 sec latency 151.379 ms 1 1508 0.21 MB/sec execute 65 sec latency 312.270 ms 1 1574 0.21 MB/sec execute 66 sec latency 87.655 ms tar: Error is not recoverable: exiting now dbench killed by signal 15 stopping dbench on /mnt/lustre at Fri Aug 28 01:57:44 EDT 2026 with return code 0 1 1625 0.21 MB/sec execute 67 sec latency 95.079 ms 67886 pts/0 S+ 0:00 dbench -c client.txt 1 -D /mnt/lustre2/d26.replay-dual/run_dbench -t 100 killed dbench main pid 67886 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished