== replay-dual test 26: dbench and tar with mds failover ========================================================== 09:29:05 (1789133345) Starting client oleg652-client.virtnet: -o user_xattr,flock 192.168.206.152@tcp:/lustre /mnt/lustre Started clients oleg652-client.virtnet: 192.168.206.152@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 65962 Started dbench loop with 65963 striped dir -i0 -c2 -H crush2 /mnt/lustre2/d26.replay-dual/run_dbench striped dir -i0 -c2 -H crush2 /mnt/lustre/d26.replay-dual/run_tar 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 1968 1269336 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 1756 1269548 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 1568 3605452 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 9740 3584836 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 11308 7190288 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 Sep 11 09:29:10 EDT 2026 waiting for dbench pid 66042 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 18 0.26 MB/sec warmup 1 sec latency 22.818 ms 1 71 1.57 MB/sec warmup 2 sec latency 132.208 ms 1 113 1.74 MB/sec warmup 3 sec latency 259.319 ms 1 141 1.50 MB/sec warmup 4 sec latency 171.860 ms 1 173 1.40 MB/sec warmup 5 sec latency 158.495 ms 1 189 1.26 MB/sec warmup 6 sec latency 601.192 ms 1 223 1.23 MB/sec warmup 7 sec latency 127.019 ms 1 271 1.27 MB/sec warmup 8 sec latency 104.137 ms 1 309 1.25 MB/sec warmup 9 sec latency 168.893 ms test_26 fail mds1 1 times 1 340 1.22 MB/sec warmup 10 sec latency 146.275 ms Failing mds1 on oleg652-server 1 381 1.23 MB/sec warmup 11 sec latency 117.608 ms Stopping /mnt/lustre-mds1 (opts:) on oleg652-server 1 429 1.26 MB/sec warmup 12 sec latency 149.806 ms 1 460 1.24 MB/sec warmup 13 sec latency 248.166 ms 1 460 1.15 MB/sec warmup 14 sec latency 1252.195 ms 09:29:25 (1789133365) shut down 1 460 1.08 MB/sec warmup 15 sec latency 2252.556 ms facet: mds1 facet_host: oleg652-server facet_failover_host: oleg652-server 1 460 1.01 MB/sec warmup 16 sec latency 3252.838 ms 1 460 0.95 MB/sec warmup 17 sec latency 4254.638 ms 1 460 0.90 MB/sec warmup 18 sec latency 5255.861 ms 1 460 0.85 MB/sec warmup 19 sec latency 6256.076 ms 1 460 0.00 MB/sec execute 1 sec latency 8257.288 ms 1 460 0.00 MB/sec execute 2 sec latency 9257.702 ms 1 460 0.00 MB/sec execute 3 sec latency 10257.951 ms 1 460 0.00 MB/sec execute 4 sec latency 11259.726 ms 1 460 0.00 MB/sec execute 5 sec latency 12260.199 ms Failover mds1 to oleg652-server mount facets: mds1 1 460 0.00 MB/sec execute 6 sec latency 13260.434 ms 1 460 0.00 MB/sec execute 7 sec latency 14260.827 ms 1 460 0.00 MB/sec execute 8 sec latency 15261.126 ms 1 460 0.00 MB/sec execute 9 sec latency 16261.293 ms 1 460 0.00 MB/sec execute 10 sec latency 17262.892 ms 1 460 0.00 MB/sec execute 11 sec latency 18263.157 ms 1 460 0.00 MB/sec execute 12 sec latency 19264.336 ms 1 460 0.00 MB/sec execute 13 sec latency 20264.551 ms 1 460 0.00 MB/sec execute 14 sec latency 21264.960 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 460 0.00 MB/sec execute 15 sec latency 22266.387 ms 1 460 0.00 MB/sec execute 16 sec latency 23267.563 ms 1 460 0.00 MB/sec execute 17 sec latency 24267.982 ms 1 460 0.00 MB/sec execute 18 sec latency 25268.227 ms 1 460 0.00 MB/sec execute 19 sec latency 26268.475 ms 1 460 0.00 MB/sec execute 20 sec latency 27268.974 ms 1 460 0.00 MB/sec execute 21 sec latency 28274.003 ms 1 460 0.00 MB/sec execute 22 sec latency 29274.403 ms 1 460 0.00 MB/sec execute 23 sec latency 30274.681 ms 1 460 0.00 MB/sec execute 24 sec latency 31276.460 ms 1 460 0.00 MB/sec execute 25 sec latency 32279.181 ms 1 460 0.00 MB/sec execute 26 sec latency 33282.364 ms 1 460 0.00 MB/sec execute 27 sec latency 34282.924 ms 1 460 0.00 MB/sec execute 28 sec latency 35284.806 ms 1 460 0.00 MB/sec execute 29 sec latency 36285.343 ms oleg652-server: oleg652-server.virtnet: executing set_default_debug -1 all 1 460 0.00 MB/sec execute 30 sec latency 37286.198 ms 1 460 0.00 MB/sec execute 31 sec latency 38287.559 ms pdsh@oleg652-client: oleg652-server: ssh exited with exit code 1 1 460 0.00 MB/sec execute 32 sec latency 39288.038 ms Started lustre-MDT0000 09:30:02 (1789133402) targets are mounted 09:30:02 (1789133402) facet_failover done 1 478 0.02 MB/sec execute 33 sec latency 39759.532 ms 1 511 0.05 MB/sec execute 34 sec latency 166.078 ms 1 546 0.08 MB/sec execute 35 sec latency 176.918 ms 1 581 0.10 MB/sec execute 36 sec latency 712.122 ms 1 636 0.13 MB/sec execute 37 sec latency 111.925 ms 1 669 0.13 MB/sec execute 38 sec latency 134.228 ms 1 704 0.13 MB/sec execute 39 sec latency 141.189 ms oleg652-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 738 0.13 MB/sec execute 40 sec latency 107.359 ms 1 769 0.13 MB/sec execute 41 sec latency 139.416 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 796 0.13 MB/sec execute 42 sec latency 165.888 ms 1 821 0.12 MB/sec execute 43 sec latency 122.353 ms 1 873 0.12 MB/sec execute 44 sec latency 116.456 ms 1 897 0.12 MB/sec execute 45 sec latency 222.187 ms 1 919 0.12 MB/sec execute 46 sec latency 189.613 ms 1 955 0.12 MB/sec execute 47 sec latency 152.111 ms 1 980 0.12 MB/sec execute 48 sec latency 167.754 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2140 1269164 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 1904 1269400 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 13176 3590544 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 45820 3556824 2% /mnt/lustre[OST:1] filesystem_summary: 7666232 58996 7147368 1% /mnt/lustre 1 1009 0.13 MB/sec execute 49 sec latency 138.195 ms 1 1062 0.13 MB/sec execute 50 sec latency 93.716 ms 1 1102 0.13 MB/sec execute 51 sec latency 100.264 ms 1 1138 0.13 MB/sec execute 52 sec latency 101.789 ms 1 1172 0.13 MB/sec execute 53 sec latency 189.690 ms 1 1176 0.13 MB/sec execute 54 sec latency 1039.735 ms 1 1216 0.13 MB/sec execute 55 sec latency 98.240 ms 1 1251 0.12 MB/sec execute 56 sec latency 153.415 ms 1 1384 0.17 MB/sec execute 57 sec latency 85.711 ms 1 1421 0.17 MB/sec execute 58 sec latency 116.338 ms test_26 fail mds2 2 times 1 1468 0.17 MB/sec execute 59 sec latency 104.789 ms 1 1499 0.16 MB/sec execute 60 sec latency 138.692 ms Failing mds2 on oleg652-server 1 1547 0.16 MB/sec execute 61 sec latency 103.717 ms Stopping /mnt/lustre-mds2 (opts:) on oleg652-server 1 1570 0.16 MB/sec execute 62 sec latency 117.184 ms 1 1600 0.16 MB/sec execute 63 sec latency 126.513 ms 1 1646 0.16 MB/sec execute 64 sec latency 96.458 ms 1 1682 0.15 MB/sec execute 65 sec latency 140.665 ms 09:30:36 (1789133436) shut down facet: mds2 facet_host: oleg652-server facet_failover_host: oleg652-server 1 1709 0.15 MB/sec execute 66 sec latency 172.589 ms 1 1807 0.15 MB/sec execute 67 sec latency 73.823 ms 1 1851 0.15 MB/sec execute 68 sec latency 146.854 ms 1 1934 0.15 MB/sec execute 69 sec latency 84.559 ms 1 2020 0.15 MB/sec execute 70 sec latency 64.483 ms 1 2113 0.15 MB/sec execute 71 sec latency 64.610 ms 1 2164 0.15 MB/sec execute 72 sec latency 78.670 ms 1 2226 0.15 MB/sec execute 73 sec latency 84.549 ms 1 2259 0.14 MB/sec execute 74 sec latency 672.673 ms 1 2259 0.14 MB/sec execute 75 sec latency 1672.974 ms 1 2259 0.14 MB/sec execute 76 sec latency 2678.262 ms Failover mds2 to oleg652-server mount facets: mds2 1 2259 0.14 MB/sec execute 77 sec latency 3678.491 ms 1 2259 0.14 MB/sec execute 78 sec latency 4678.878 ms 1 2259 0.13 MB/sec execute 79 sec latency 5679.201 ms 1 2259 0.13 MB/sec execute 80 sec latency 6679.858 ms 1 2259 0.13 MB/sec execute 81 sec latency 7680.037 ms 1 2259 0.13 MB/sec execute 82 sec latency 8680.505 ms 1 2259 0.13 MB/sec execute 83 sec latency 9682.133 ms 1 2259 0.13 MB/sec execute 84 sec latency 10682.994 ms 1 2259 0.12 MB/sec execute 85 sec latency 11683.248 ms 1 2259 0.12 MB/sec execute 86 sec latency 12683.969 ms Start mds2: mount -t lustre -o localrecov /dev/mapper/mds2_flakey /mnt/lustre-mds2 1 2259 0.12 MB/sec execute 87 sec latency 13684.230 ms 1 2259 0.12 MB/sec execute 88 sec latency 14684.760 ms 1 2259 0.12 MB/sec execute 89 sec latency 15685.289 ms 1 2259 0.12 MB/sec execute 90 sec latency 16687.886 ms 1 2259 0.12 MB/sec execute 91 sec latency 17688.508 ms 1 2259 0.12 MB/sec execute 92 sec latency 18688.889 ms oleg652-server: oleg652-server.virtnet: executing set_default_debug -1 all 1 2259 0.11 MB/sec execute 93 sec latency 19689.489 ms pdsh@oleg652-client: oleg652-server: ssh exited with exit code 1 1 2259 0.11 MB/sec execute 94 sec latency 20690.223 ms Started lustre-MDT0001 09:31:05 (1789133465) targets are mounted 09:31:05 (1789133465) facet_failover done 1 2259 0.11 MB/sec execute 95 sec latency 21690.426 ms 1 2295 0.12 MB/sec execute 96 sec latency 22267.192 ms 1 2347 0.12 MB/sec execute 97 sec latency 130.967 ms 1 2376 0.12 MB/sec execute 98 sec latency 143.094 ms 1 2402 0.12 MB/sec execute 99 sec latency 143.059 ms 1 cleanup 100 sec 1 cleanup 101 sec oleg652-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0001-mdc-*.mds_server_uuid 1475 0 1 cleanup 102 sec 1 cleanup 103 sec 1 cleanup 104 sec 0 cleanup 105 sec Operation Count AvgLat MaxLat ---------------------------------------- NTCreateX 342 122.618 22267.178 Close 298 146.161 39759.499 Rename 14 128.805 189.588 Unlink 34 29.462 73.485 Qpathinfo 320 16.432 122.332 Qfileinfo 81 2.798 24.364 Qfsinfo 39 3.986 19.836 Sfileinfo 44 67.905 138.704 Find 107 12.667 52.635 WriteX 276 14.527 116.442 ReadX 381 3.380 120.710 Flush 33 62.331 222.169 Throughput 0.119106 MB/sec 1 clients 1 procs max_latency=39759.532 ms stopping dbench on /mnt/lustre at Fri Sep 11 09:31:15 EDT 2026 with return code 0 mdc.lustre-MDT0001-mdc-*.mds_server_uuid in FULL state after 0 sec clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished 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 UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2356 1268948 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 2092 1269212 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 2600 3603596 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 20036 3586316 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 22636 7189912 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 Sep 11 09:31:28 EDT 2026 waiting for dbench pid 68220 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 5 0.00 MB/sec warmup 1 sec latency 144.043 ms 1 31 0.52 MB/sec warmup 2 sec latency 95.128 ms 1 71 1.05 MB/sec warmup 3 sec latency 167.591 ms 1 91 1.05 MB/sec warmup 4 sec latency 563.628 ms 1 96 0.86 MB/sec warmup 5 sec latency 1462.103 ms 1 121 0.92 MB/sec warmup 6 sec latency 376.903 ms 1 150 0.90 MB/sec warmup 7 sec latency 152.583 ms 1 184 0.92 MB/sec warmup 8 sec latency 118.113 ms test_26 fail mds1 3 times 1 199 0.87 MB/sec warmup 9 sec latency 524.640 ms 1 231 0.89 MB/sec warmup 10 sec latency 217.110 ms Failing mds1 on oleg652-server 1 262 0.90 MB/sec warmup 11 sec latency 160.731 ms Stopping /mnt/lustre-mds1 (opts:) on oleg652-server 1 287 0.89 MB/sec warmup 12 sec latency 210.094 ms 1 313 0.88 MB/sec warmup 13 sec latency 156.459 ms 1 339 0.87 MB/sec warmup 14 sec latency 267.558 ms 1 339 0.82 MB/sec warmup 15 sec latency 1267.974 ms 1 339 0.76 MB/sec warmup 16 sec latency 2268.260 ms 1 339 0.72 MB/sec warmup 17 sec latency 3268.442 ms 1 339 0.68 MB/sec warmup 18 sec latency 4268.619 ms 1 339 0.64 MB/sec warmup 19 sec latency 5268.782 ms 1 339 0.00 MB/sec execute 1 sec latency 7269.596 ms 09:31:50 (1789133510) shut down facet: mds1 facet_host: oleg652-server facet_failover_host: oleg652-server 1 339 0.00 MB/sec execute 2 sec latency 8270.082 ms 1 339 0.00 MB/sec execute 3 sec latency 9270.510 ms 1 339 0.00 MB/sec execute 4 sec latency 10271.829 ms 1 339 0.00 MB/sec execute 5 sec latency 11272.155 ms 1 339 0.00 MB/sec execute 6 sec latency 12272.679 ms 1 339 0.00 MB/sec execute 7 sec latency 13273.045 ms 1 339 0.00 MB/sec execute 8 sec latency 14273.234 ms 1 339 0.00 MB/sec execute 9 sec latency 15274.848 ms 1 339 0.00 MB/sec execute 10 sec latency 16278.292 ms 1 339 0.00 MB/sec execute 11 sec latency 17278.508 ms 1 339 0.00 MB/sec execute 12 sec latency 18278.633 ms Failover mds1 to oleg652-server mount facets: mds1 1 339 0.00 MB/sec execute 13 sec latency 19278.808 ms 1 339 0.00 MB/sec execute 14 sec latency 20281.956 ms 1 339 0.00 MB/sec execute 15 sec latency 21282.688 ms 1 339 0.00 MB/sec execute 16 sec latency 22283.511 ms 1 339 0.00 MB/sec execute 17 sec latency 23284.839 ms 1 339 0.00 MB/sec execute 18 sec latency 24285.745 ms 1 339 0.00 MB/sec execute 19 sec latency 25285.945 ms 1 339 0.00 MB/sec execute 20 sec latency 26286.745 ms 1 339 0.00 MB/sec execute 21 sec latency 27287.108 ms 1 339 0.00 MB/sec execute 22 sec latency 28287.321 ms 1 339 0.00 MB/sec execute 23 sec latency 29288.939 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 339 0.00 MB/sec execute 24 sec latency 30289.263 ms 1 339 0.00 MB/sec execute 25 sec latency 31289.915 ms 1 339 0.00 MB/sec execute 26 sec latency 32291.124 ms 1 339 0.00 MB/sec execute 27 sec latency 33291.478 ms 1 339 0.00 MB/sec execute 28 sec latency 34292.011 ms 1 339 0.00 MB/sec execute 29 sec latency 35293.109 ms 1 339 0.00 MB/sec execute 30 sec latency 36294.568 ms 1 339 0.00 MB/sec execute 31 sec latency 37294.832 ms 1 339 0.00 MB/sec execute 32 sec latency 38295.050 ms oleg652-server: oleg652-server.virtnet: executing set_default_debug -1 all 1 339 0.00 MB/sec execute 33 sec latency 39298.358 ms 1 339 0.00 MB/sec execute 34 sec latency 40299.673 ms pdsh@oleg652-client: oleg652-server: ssh exited with exit code 1 1 349 0.01 MB/sec execute 35 sec latency 40898.861 ms Started lustre-MDT0000 09:32:24 (1789133544) targets are mounted 09:32:24 (1789133544) facet_failover done 1 376 0.03 MB/sec execute 36 sec latency 171.785 ms 1 417 0.06 MB/sec execute 37 sec latency 111.569 ms 1 453 0.10 MB/sec execute 38 sec latency 126.442 ms 1 486 0.12 MB/sec execute 39 sec latency 180.187 ms 1 514 0.14 MB/sec execute 40 sec latency 145.728 ms 1 582 0.18 MB/sec execute 41 sec latency 128.218 ms 1 639 0.21 MB/sec execute 42 sec latency 111.203 ms 1 669 0.21 MB/sec execute 43 sec latency 172.776 ms oleg652-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 692 0.20 MB/sec execute 44 sec latency 178.314 ms 1 712 0.20 MB/sec execute 45 sec latency 235.154 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 736 0.20 MB/sec execute 46 sec latency 148.018 ms 1 765 0.19 MB/sec execute 47 sec latency 151.253 ms 1 780 0.19 MB/sec execute 48 sec latency 229.440 ms 1 803 0.19 MB/sec execute 49 sec latency 163.105 ms 1 821 0.18 MB/sec execute 50 sec latency 199.776 ms 1 859 0.18 MB/sec execute 51 sec latency 186.910 ms 1 884 0.18 MB/sec execute 52 sec latency 337.524 ms 1 888 0.18 MB/sec execute 53 sec latency 820.998 ms 1 918 0.18 MB/sec execute 54 sec latency 142.523 ms 1 952 0.17 MB/sec execute 55 sec latency 166.624 ms 1 984 0.17 MB/sec execute 56 sec latency 116.578 ms 1 1040 0.19 MB/sec execute 57 sec latency 121.044 ms 1 1086 0.18 MB/sec execute 58 sec latency 88.828 ms tar: Unexpected EOF in archive tar: Unexpected EOF in archive 1 1130 0.18 MB/sec execute 59 sec latency 118.862 ms 1 1172 0.18 MB/sec execute 60 sec latency 89.796 ms 1 1215 0.18 MB/sec execute 61 sec latency 101.259 ms 1 1259 0.17 MB/sec execute 62 sec latency 108.825 ms 1 1395 0.22 MB/sec execute 63 sec latency 94.723 ms 1 1445 0.21 MB/sec execute 64 sec latency 171.806 ms 1 1470 0.21 MB/sec execute 65 sec latency 316.334 ms 1 1509 0.21 MB/sec execute 66 sec latency 176.036 ms 1 1566 0.21 MB/sec execute 67 sec latency 186.100 ms 1 1619 0.20 MB/sec execute 68 sec latency 110.851 ms tar: Error is not recoverable: exiting now 1 1660 0.20 MB/sec execute 69 sec latency 121.220 ms dbench killed by signal 15 stopping dbench on /mnt/lustre at Fri Sep 11 09:32:58 EDT 2026 with return code 0 68220 pts/0 S+ 0:00 dbench -c client.txt 1 -D /mnt/lustre2/d26.replay-dual/run_dbench -t 100 killed dbench main pid 68220 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished