== replay-dual test 26: dbench and tar with mds failover ========================================================== 07:49:41 (1787831381) Starting client oleg146-client.virtnet: -o user_xattr,flock 192.168.201.146@tcp:/lustre /mnt/lustre Started clients oleg146-client.virtnet: 192.168.201.146@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 65688 Started dbench loop with 65689 striped dir -i0 -c2 -H all_char /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 1964 1269340 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 1756 1269548 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 1564 3605456 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 17928 3584888 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 19492 7190344 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 Thu Aug 27 07:49:47 EDT 2026 waiting for dbench pid 65768 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 12.846 ms 1 52 1.05 MB/sec warmup 2 sec latency 107.192 ms 1 82 1.22 MB/sec warmup 3 sec latency 178.944 ms 1 113 1.30 MB/sec warmup 4 sec latency 231.314 ms 1 140 1.20 MB/sec warmup 5 sec latency 181.606 ms 1 167 1.13 MB/sec warmup 6 sec latency 202.679 ms 1 189 1.08 MB/sec warmup 7 sec latency 413.661 ms 1 220 1.06 MB/sec warmup 8 sec latency 172.992 ms 1 271 1.13 MB/sec warmup 9 sec latency 111.734 ms 1 315 1.15 MB/sec warmup 10 sec latency 135.040 ms test_26 fail mds1 1 times 1 341 1.11 MB/sec warmup 11 sec latency 215.679 ms 1 373 1.11 MB/sec warmup 12 sec latency 172.982 ms Failing mds1 on oleg146-server 1 403 1.10 MB/sec warmup 13 sec latency 178.988 ms 1 438 1.10 MB/sec warmup 14 sec latency 127.268 ms Stopping /mnt/lustre-mds1 (opts:) on oleg146-server 1 477 1.11 MB/sec warmup 15 sec latency 159.207 ms 1 501 1.09 MB/sec warmup 16 sec latency 185.524 ms 1 501 1.02 MB/sec warmup 17 sec latency 1121.774 ms 1 501 0.97 MB/sec warmup 18 sec latency 2126.008 ms 1 501 0.92 MB/sec warmup 19 sec latency 3126.170 ms 07:50:07 (1787831407) shut down facet: mds1 facet_host: oleg146-server facet_failover_host: oleg146-server 1 501 0.00 MB/sec execute 1 sec latency 5128.066 ms 1 501 0.00 MB/sec execute 2 sec latency 6129.069 ms 1 501 0.00 MB/sec execute 3 sec latency 7129.250 ms 1 501 0.00 MB/sec execute 4 sec latency 8129.432 ms 1 501 0.00 MB/sec execute 5 sec latency 9132.064 ms 1 501 0.00 MB/sec execute 6 sec latency 10132.341 ms 1 501 0.00 MB/sec execute 7 sec latency 11132.640 ms 1 501 0.00 MB/sec execute 8 sec latency 12133.927 ms 1 501 0.00 MB/sec execute 9 sec latency 13134.126 ms 1 501 0.00 MB/sec execute 10 sec latency 14134.338 ms Failover mds1 to oleg146-server mount facets: mds1 1 501 0.00 MB/sec execute 11 sec latency 15134.576 ms 1 501 0.00 MB/sec execute 12 sec latency 16135.490 ms 1 501 0.00 MB/sec execute 13 sec latency 17135.945 ms 1 501 0.00 MB/sec execute 14 sec latency 18137.743 ms 1 501 0.00 MB/sec execute 15 sec latency 19138.373 ms 1 501 0.00 MB/sec execute 16 sec latency 20139.246 ms 1 501 0.00 MB/sec execute 17 sec latency 21139.459 ms 1 501 0.00 MB/sec execute 18 sec latency 22139.741 ms 1 501 0.00 MB/sec execute 19 sec latency 23140.010 ms 1 501 0.00 MB/sec execute 20 sec latency 24140.462 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 501 0.00 MB/sec execute 21 sec latency 25140.684 ms 1 501 0.00 MB/sec execute 22 sec latency 26142.101 ms 1 501 0.00 MB/sec execute 23 sec latency 27146.910 ms 1 501 0.00 MB/sec execute 24 sec latency 28148.918 ms 1 501 0.00 MB/sec execute 25 sec latency 29149.287 ms 1 501 0.00 MB/sec execute 26 sec latency 30149.741 ms 1 501 0.00 MB/sec execute 27 sec latency 31156.067 ms 1 501 0.00 MB/sec execute 28 sec latency 32156.251 ms 1 501 0.00 MB/sec execute 29 sec latency 33156.459 ms 1 501 0.00 MB/sec execute 30 sec latency 34156.892 ms 1 501 0.00 MB/sec execute 31 sec latency 35157.167 ms oleg146-server: oleg146-server.virtnet: executing set_default_debug -1 all 1 501 0.00 MB/sec execute 32 sec latency 36157.484 ms pdsh@oleg146-client: oleg146-server: ssh exited with exit code 1 1 501 0.00 MB/sec execute 33 sec latency 37158.294 ms Started lustre-MDT0000 07:50:40 (1787831440) targets are mounted 07:50:40 (1787831440) facet_failover done 1 501 0.00 MB/sec execute 34 sec latency 38159.088 ms 1 513 0.01 MB/sec execute 35 sec latency 38660.540 ms 1 552 0.05 MB/sec execute 36 sec latency 158.130 ms 1 592 0.08 MB/sec execute 37 sec latency 735.384 ms 1 648 0.09 MB/sec execute 38 sec latency 142.007 ms 1 676 0.10 MB/sec execute 39 sec latency 144.742 ms 1 712 0.09 MB/sec execute 40 sec latency 116.783 ms oleg146-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 758 0.09 MB/sec execute 41 sec latency 120.603 ms 1 786 0.09 MB/sec execute 42 sec latency 144.360 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 817 0.09 MB/sec execute 43 sec latency 99.127 ms 1 874 0.10 MB/sec execute 44 sec latency 117.456 ms 1 903 0.09 MB/sec execute 45 sec latency 194.305 ms 1 949 0.09 MB/sec execute 46 sec latency 100.711 ms 1 980 0.09 MB/sec execute 47 sec latency 126.363 ms 1 1050 0.11 MB/sec execute 48 sec latency 85.532 ms 1 1103 0.11 MB/sec execute 49 sec latency 85.807 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2176 1269128 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 1976 1269328 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 9916 3595948 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 47316 3552420 2% /mnt/lustre[OST:1] filesystem_summary: 7666232 57232 7148368 1% /mnt/lustre 1 1149 0.11 MB/sec execute 50 sec latency 101.612 ms 1 1172 0.11 MB/sec execute 51 sec latency 727.318 ms 1 1193 0.11 MB/sec execute 52 sec latency 1089.377 ms 1 1231 0.11 MB/sec execute 53 sec latency 98.527 ms 1 1263 0.10 MB/sec execute 54 sec latency 128.119 ms 1 1396 0.16 MB/sec execute 55 sec latency 123.460 ms 1 1403 0.15 MB/sec execute 56 sec latency 913.928 ms 1 1440 0.15 MB/sec execute 57 sec latency 136.354 ms 1 1489 0.15 MB/sec execute 58 sec latency 114.575 ms 1 1530 0.15 MB/sec execute 59 sec latency 112.093 ms test_26 fail mds2 2 times 1 1588 0.14 MB/sec execute 60 sec latency 77.491 ms 1 1634 0.14 MB/sec execute 61 sec latency 104.528 ms Failing mds2 on oleg146-server 1 1678 0.14 MB/sec execute 62 sec latency 145.047 ms Stopping /mnt/lustre-mds2 (opts:) on oleg146-server 1 1709 0.14 MB/sec execute 63 sec latency 150.860 ms 1 1735 0.14 MB/sec execute 64 sec latency 648.621 ms 1 1735 0.14 MB/sec execute 65 sec latency 1648.819 ms 07:51:13 (1787831473) shut down facet: mds2 facet_host: oleg146-server facet_failover_host: oleg146-server 1 1735 0.13 MB/sec execute 66 sec latency 2651.377 ms 1 1735 0.13 MB/sec execute 67 sec latency 3652.212 ms 1 1735 0.13 MB/sec execute 68 sec latency 4652.419 ms 1 1735 0.13 MB/sec execute 69 sec latency 5655.153 ms 1 1735 0.13 MB/sec execute 70 sec latency 6655.345 ms 1 1735 0.12 MB/sec execute 71 sec latency 7656.066 ms 1 1735 0.12 MB/sec execute 72 sec latency 8656.318 ms 1 1735 0.12 MB/sec execute 73 sec latency 9656.592 ms 1 1735 0.12 MB/sec execute 74 sec latency 10656.793 ms 1 1735 0.12 MB/sec execute 75 sec latency 11657.506 ms Failover mds2 to oleg146-server 1 1735 0.12 MB/sec execute 76 sec latency 12657.833 ms mount facets: mds2 1 1735 0.11 MB/sec execute 77 sec latency 13658.077 ms 1 1735 0.11 MB/sec execute 78 sec latency 14664.704 ms 1 1735 0.11 MB/sec execute 79 sec latency 15664.921 ms 1 1735 0.11 MB/sec execute 80 sec latency 16666.375 ms 1 1735 0.11 MB/sec execute 81 sec latency 17669.164 ms 1 1735 0.11 MB/sec execute 82 sec latency 18669.438 ms 1 1735 0.11 MB/sec execute 83 sec latency 19669.667 ms 1 1735 0.10 MB/sec execute 84 sec latency 20671.096 ms 1 1735 0.10 MB/sec execute 85 sec latency 21671.534 ms 1 1735 0.10 MB/sec execute 86 sec latency 22671.778 ms Start mds2: mount -t lustre -o localrecov /dev/mapper/mds2_flakey /mnt/lustre-mds2 1 1735 0.10 MB/sec execute 87 sec latency 23672.465 ms 1 1735 0.10 MB/sec execute 88 sec latency 24672.785 ms 1 1735 0.10 MB/sec execute 89 sec latency 25672.966 ms 1 1735 0.10 MB/sec execute 90 sec latency 26676.527 ms 1 1735 0.10 MB/sec execute 91 sec latency 27678.310 ms 1 1735 0.10 MB/sec execute 92 sec latency 28682.204 ms 1 1735 0.09 MB/sec execute 93 sec latency 29682.445 ms oleg146-server: oleg146-server.virtnet: executing set_default_debug -1 all 1 1735 0.09 MB/sec execute 94 sec latency 30682.899 ms pdsh@oleg146-client: oleg146-server: ssh exited with exit code 1 1 1735 0.09 MB/sec execute 95 sec latency 31691.234 ms Started lustre-MDT0001 07:51:43 (1787831503) targets are mounted 07:51:43 (1787831503) facet_failover done 1 1748 0.09 MB/sec execute 96 sec latency 32524.835 ms 1 1781 0.09 MB/sec execute 97 sec latency 137.604 ms 1 1820 0.09 MB/sec execute 98 sec latency 98.717 ms 1 1857 0.09 MB/sec execute 99 sec latency 93.810 ms 1 cleanup 100 sec 1 cleanup 101 sec 1 cleanup 102 sec 1 cleanup 103 sec 0 cleanup 104 sec 0 cleanup 105 sec Operation Count AvgLat MaxLat ---------------------------------------- NTCreateX 252 215.119 38660.524 Close 197 179.760 32524.813 Rename 11 95.259 144.342 Unlink 24 24.274 44.825 Qpathinfo 192 16.742 108.853 Qfileinfo 57 2.576 28.898 Qfsinfo 33 2.965 19.176 Sfileinfo 34 62.456 163.242 Find 71 13.983 97.817 WriteX 193 14.570 75.666 ReadX 293 0.227 22.447 Flush 29 61.171 123.193 Throughput 0.0896878 MB/sec 1 clients 1 procs max_latency=38660.540 ms stopping dbench on /mnt/lustre at Thu Aug 27 07:51:52 EDT 2026 with return code 0 oleg146-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0001-mdc-*.mds_server_uuid 1475 0 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished mdc.lustre-MDT0001-mdc-*.mds_server_uuid in FULL state after 0 sec 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 '/usr/share/dbench/client.txt' -> 'client.txt' running 'dbench 1 -D /mnt/lustre2/d26.replay-dual/run_dbench -t 100' on /mnt/lustre at Thu Aug 27 07:52:01 EDT 2026 waiting for dbench pid 67900 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 UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2300 1269004 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 2176 1269128 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 11008 3595736 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 36220 3568740 2% /mnt/lustre[OST:1] filesystem_summary: 7666232 47228 7164476 1% /mnt/lustre 0 8 0.00 MB/sec warmup 1 sec latency 98.833 ms 1 57 1.15 MB/sec warmup 2 sec latency 114.261 ms 1 111 1.74 MB/sec warmup 3 sec latency 152.786 ms 1 147 1.57 MB/sec warmup 4 sec latency 168.755 ms 1 181 1.46 MB/sec warmup 5 sec latency 188.025 ms 1 197 1.30 MB/sec warmup 6 sec latency 517.764 ms 1 239 1.30 MB/sec warmup 7 sec latency 115.117 ms 1 287 1.34 MB/sec warmup 8 sec latency 98.756 ms 1 319 1.28 MB/sec warmup 9 sec latency 141.560 ms 1 365 1.30 MB/sec warmup 10 sec latency 109.329 ms test_26 fail mds1 3 times 1 410 1.31 MB/sec warmup 11 sec latency 143.828 ms 1 445 1.30 MB/sec warmup 12 sec latency 119.032 ms Failing mds1 on oleg146-server 1 483 1.30 MB/sec warmup 13 sec latency 141.823 ms Stopping /mnt/lustre-mds1 (opts:) on oleg146-server 1 529 1.31 MB/sec warmup 14 sec latency 129.116 ms 1 612 1.40 MB/sec warmup 15 sec latency 183.921 ms 1 612 1.31 MB/sec warmup 16 sec latency 1184.188 ms 1 612 1.23 MB/sec warmup 17 sec latency 2184.402 ms 1 612 1.16 MB/sec warmup 18 sec latency 3184.612 ms 1 612 1.10 MB/sec warmup 19 sec latency 4184.861 ms 1 612 0.00 MB/sec execute 1 sec latency 6188.601 ms 1 612 0.00 MB/sec execute 2 sec latency 7188.860 ms 1 612 0.00 MB/sec execute 3 sec latency 8193.556 ms 07:52:25 (1787831545) shut down facet: mds1 facet_host: oleg146-server facet_failover_host: oleg146-server 1 612 0.00 MB/sec execute 4 sec latency 9193.840 ms 1 612 0.00 MB/sec execute 5 sec latency 10194.713 ms 1 612 0.00 MB/sec execute 6 sec latency 11196.020 ms 1 612 0.00 MB/sec execute 7 sec latency 12196.430 ms 1 612 0.00 MB/sec execute 8 sec latency 13196.659 ms 1 612 0.00 MB/sec execute 9 sec latency 14197.433 ms 1 612 0.00 MB/sec execute 10 sec latency 15198.047 ms 1 612 0.00 MB/sec execute 11 sec latency 16198.596 ms 1 612 0.00 MB/sec execute 12 sec latency 17198.801 ms 1 612 0.00 MB/sec execute 13 sec latency 18199.111 ms Failover mds1 to oleg146-server mount facets: mds1 1 612 0.00 MB/sec execute 14 sec latency 19201.926 ms 1 612 0.00 MB/sec execute 15 sec latency 20202.107 ms 1 612 0.00 MB/sec execute 16 sec latency 21202.280 ms 1 612 0.00 MB/sec execute 17 sec latency 22202.837 ms 1 612 0.00 MB/sec execute 18 sec latency 23203.305 ms 1 612 0.00 MB/sec execute 19 sec latency 24203.522 ms 1 612 0.00 MB/sec execute 20 sec latency 25204.724 ms 1 612 0.00 MB/sec execute 21 sec latency 26205.152 ms 1 612 0.00 MB/sec execute 22 sec latency 27207.278 ms 1 612 0.00 MB/sec execute 23 sec latency 28217.763 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 612 0.00 MB/sec execute 24 sec latency 29232.425 ms 1 612 0.00 MB/sec execute 25 sec latency 30236.774 ms 1 612 0.00 MB/sec execute 26 sec latency 31237.633 ms 1 612 0.00 MB/sec execute 27 sec latency 32237.824 ms 1 612 0.00 MB/sec execute 28 sec latency 33238.119 ms 1 612 0.00 MB/sec execute 29 sec latency 34238.341 ms 1 612 0.00 MB/sec execute 30 sec latency 35238.552 ms 1 612 0.00 MB/sec execute 31 sec latency 36242.367 ms 1 612 0.00 MB/sec execute 32 sec latency 37242.766 ms 1 612 0.00 MB/sec execute 33 sec latency 38253.312 ms 1 612 0.00 MB/sec execute 34 sec latency 39255.495 ms 1 612 0.00 MB/sec execute 35 sec latency 40255.835 ms 1 612 0.00 MB/sec execute 36 sec latency 41256.025 ms oleg146-server: oleg146-server.virtnet: executing set_default_debug -1 all 1 612 0.00 MB/sec execute 37 sec latency 42256.331 ms pdsh@oleg146-client: oleg146-server: ssh exited with exit code 1 1 612 0.00 MB/sec execute 38 sec latency 43256.623 ms Started lustre-MDT0000 07:53:01 (1787831581) targets are mounted 07:53:01 (1787831581) facet_failover done 1 654 0.00 MB/sec execute 39 sec latency 43587.459 ms 1 705 0.01 MB/sec execute 40 sec latency 80.438 ms 1 735 0.01 MB/sec execute 41 sec latency 118.120 ms 1 765 0.01 MB/sec execute 42 sec latency 178.945 ms 1 794 0.01 MB/sec execute 43 sec latency 122.126 ms 1 848 0.01 MB/sec execute 44 sec latency 104.748 ms 1 876 0.02 MB/sec execute 45 sec latency 144.882 ms 1 884 0.02 MB/sec execute 46 sec latency 649.581 ms oleg146-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 897 0.02 MB/sec execute 47 sec latency 1018.368 ms 1 917 0.02 MB/sec execute 48 sec latency 197.667 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 943 0.02 MB/sec execute 49 sec latency 159.737 ms 1 970 0.02 MB/sec execute 50 sec latency 159.124 ms 1 1000 0.02 MB/sec execute 51 sec latency 123.721 ms 1 1102 0.04 MB/sec execute 52 sec latency 94.012 ms 1 1173 0.04 MB/sec execute 53 sec latency 80.709 ms tar: Unexpected EOF in archive tar: Unexpected EOF in archive 1 1225 0.04 MB/sec execute 54 sec latency 69.642 ms 1 1285 0.04 MB/sec execute 55 sec latency 76.926 ms 1 1419 0.09 MB/sec execute 56 sec latency 69.745 ms 1 1468 0.09 MB/sec execute 57 sec latency 252.054 ms 1 1523 0.09 MB/sec execute 58 sec latency 72.780 ms 1 1575 0.09 MB/sec execute 59 sec latency 79.619 ms 1 1625 0.09 MB/sec execute 60 sec latency 114.188 ms 1 1686 0.09 MB/sec execute 61 sec latency 135.637 ms 1 1770 0.09 MB/sec execute 62 sec latency 135.879 ms tar: Error is not recoverable: exiting now dbench killed by signal 15 stopping dbench on /mnt/lustre at Thu Aug 27 07:53:24 EDT 2026 with return code 0 67900 pts/0 S+ 0:00 dbench -c client.txt 1 -D /mnt/lustre2/d26.replay-dual/run_dbench -t 100 killed dbench main pid 67900 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished