== replay-dual test 26: dbench and tar with mds failover ========================================================== 02:07:35 (1789020455) Starting client oleg227-client.virtnet: -o user_xattr,flock 192.168.202.127@tcp:/lustre /mnt/lustre Started clients oleg227-client.virtnet: 192.168.202.127@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 65659 Started dbench loop with 65660 striped dir -i0 -c2 -H crush /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 1932 1269372 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 1756 1269548 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 1564 3597160 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 1544 3605476 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 3108 7202636 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 Sep 10 02:07:43 EDT 2026 waiting for dbench pid 65748 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 8 0.00 MB/sec warmup 1 sec latency 120.816 ms 1 39 0.69 MB/sec warmup 2 sec latency 102.483 ms 1 71 1.05 MB/sec warmup 3 sec latency 225.714 ms 1 98 1.11 MB/sec warmup 4 sec latency 182.739 ms 1 121 1.09 MB/sec warmup 5 sec latency 298.444 ms 1 139 1.00 MB/sec warmup 6 sec latency 353.056 ms 1 146 0.89 MB/sec warmup 7 sec latency 529.440 ms 1 155 0.81 MB/sec warmup 8 sec latency 999.209 ms 1 174 0.78 MB/sec warmup 9 sec latency 246.790 ms 1 207 0.81 MB/sec warmup 10 sec latency 340.021 ms 1 255 0.87 MB/sec warmup 11 sec latency 107.324 ms test_26 fail mds1 1 times 1 290 0.89 MB/sec warmup 12 sec latency 159.551 ms 1 315 0.88 MB/sec warmup 13 sec latency 159.785 ms Failing mds1 on oleg227-server 1 341 0.87 MB/sec warmup 14 sec latency 189.909 ms Stopping /mnt/lustre-mds1 (opts:) on oleg227-server 1 373 0.88 MB/sec warmup 15 sec latency 147.118 ms 1 421 0.92 MB/sec warmup 16 sec latency 127.268 ms 1 469 0.96 MB/sec warmup 17 sec latency 175.163 ms 1 501 0.97 MB/sec warmup 18 sec latency 290.408 ms 02:08:02 (1789020482) shut down 1 501 0.91 MB/sec warmup 19 sec latency 1299.969 ms facet: mds1 facet_host: oleg227-server facet_failover_host: oleg227-server 1 501 0.00 MB/sec execute 1 sec latency 3302.326 ms 1 501 0.00 MB/sec execute 2 sec latency 4304.335 ms 1 501 0.00 MB/sec execute 3 sec latency 5304.627 ms 1 501 0.00 MB/sec execute 4 sec latency 6305.160 ms 1 501 0.00 MB/sec execute 5 sec latency 7305.333 ms 1 501 0.00 MB/sec execute 6 sec latency 8305.652 ms 1 501 0.00 MB/sec execute 7 sec latency 9305.879 ms 1 501 0.00 MB/sec execute 8 sec latency 10306.129 ms 1 501 0.00 MB/sec execute 9 sec latency 11306.355 ms Failover mds1 to oleg227-server mount facets: mds1 1 501 0.00 MB/sec execute 10 sec latency 12315.400 ms 1 501 0.00 MB/sec execute 11 sec latency 13315.716 ms 1 501 0.00 MB/sec execute 12 sec latency 14315.948 ms 1 501 0.00 MB/sec execute 13 sec latency 15316.148 ms 1 501 0.00 MB/sec execute 14 sec latency 16317.810 ms 1 501 0.00 MB/sec execute 15 sec latency 17318.025 ms 1 501 0.00 MB/sec execute 16 sec latency 18318.215 ms 1 501 0.00 MB/sec execute 17 sec latency 19323.125 ms 1 501 0.00 MB/sec execute 18 sec latency 20325.300 ms 1 501 0.00 MB/sec execute 19 sec latency 21325.972 ms 1 501 0.00 MB/sec execute 20 sec latency 22326.156 ms 1 501 0.00 MB/sec execute 21 sec latency 23333.293 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 501 0.00 MB/sec execute 22 sec latency 24333.634 ms 1 501 0.00 MB/sec execute 23 sec latency 25333.873 ms 1 501 0.00 MB/sec execute 24 sec latency 26335.085 ms 1 501 0.00 MB/sec execute 25 sec latency 27335.293 ms 1 501 0.00 MB/sec execute 26 sec latency 28335.472 ms 1 501 0.00 MB/sec execute 27 sec latency 29360.149 ms 1 501 0.00 MB/sec execute 28 sec latency 30360.940 ms 1 501 0.00 MB/sec execute 29 sec latency 31363.396 ms 1 501 0.00 MB/sec execute 30 sec latency 32365.436 ms 1 501 0.00 MB/sec execute 31 sec latency 33365.834 ms 1 501 0.00 MB/sec execute 32 sec latency 34366.050 ms 1 501 0.00 MB/sec execute 33 sec latency 35366.264 ms 1 501 0.00 MB/sec execute 34 sec latency 36366.580 ms 1 501 0.00 MB/sec execute 35 sec latency 37366.885 ms 1 501 0.00 MB/sec execute 36 sec latency 38367.100 ms 1 501 0.00 MB/sec execute 37 sec latency 39367.304 ms 1 501 0.00 MB/sec execute 38 sec latency 40368.669 ms 1 501 0.00 MB/sec execute 39 sec latency 41368.845 ms 1 501 0.00 MB/sec execute 40 sec latency 42369.098 ms 1 501 0.00 MB/sec execute 41 sec latency 43369.407 ms 1 501 0.00 MB/sec execute 42 sec latency 44370.138 ms 1 501 0.00 MB/sec execute 43 sec latency 45371.673 ms oleg227-server: oleg227-server.virtnet: executing set_default_debug -1 all 1 501 0.00 MB/sec execute 44 sec latency 46372.014 ms pdsh@oleg227-client: oleg227-server: ssh exited with exit code 1 1 501 0.00 MB/sec execute 45 sec latency 47372.228 ms 1 501 0.00 MB/sec execute 46 sec latency 48372.474 ms Started lustre-MDT0000 02:08:50 (1789020530) targets are mounted 02:08:50 (1789020530) facet_failover done 1 501 0.00 MB/sec execute 47 sec latency 49372.935 ms 1 552 0.03 MB/sec execute 48 sec latency 49533.778 ms 1 641 0.07 MB/sec execute 49 sec latency 271.647 ms 1 676 0.07 MB/sec execute 50 sec latency 131.255 ms 1 712 0.07 MB/sec execute 51 sec latency 107.146 ms 1 741 0.07 MB/sec execute 52 sec latency 131.417 ms oleg227-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 779 0.07 MB/sec execute 53 sec latency 125.092 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 810 0.07 MB/sec execute 54 sec latency 107.559 ms 1 864 0.07 MB/sec execute 55 sec latency 109.408 ms 1 890 0.08 MB/sec execute 56 sec latency 119.382 ms 1 923 0.08 MB/sec execute 57 sec latency 94.559 ms 1 970 0.07 MB/sec execute 58 sec latency 117.678 ms 1 998 0.08 MB/sec execute 59 sec latency 138.840 ms 1 1076 0.09 MB/sec execute 60 sec latency 84.884 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2064 1269240 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 1884 1269420 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 44180 3558024 2% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 11088 3595820 1% /mnt/lustre[OST:1] 1 1132 0.09 MB/sec execute 61 sec latency 83.428 ms filesystem_summary: 7666232 55268 7153844 1% /mnt/lustre 1 1172 0.09 MB/sec execute 62 sec latency 105.854 ms 1 1172 0.09 MB/sec execute 63 sec latency 1015.833 ms 1 1192 0.09 MB/sec execute 64 sec latency 1301.182 ms 1 1231 0.09 MB/sec execute 65 sec latency 119.416 ms 1 1264 0.09 MB/sec execute 66 sec latency 207.957 ms 1 1264 0.08 MB/sec execute 67 sec latency 1208.199 ms 1 1271 0.08 MB/sec execute 68 sec latency 2020.954 ms 1 1405 0.12 MB/sec execute 69 sec latency 96.122 ms 1 1455 0.12 MB/sec execute 70 sec latency 90.534 ms test_26 fail mds2 2 times 1 1503 0.12 MB/sec execute 71 sec latency 95.152 ms 1 1544 0.12 MB/sec execute 72 sec latency 119.910 ms Failing mds2 on oleg227-server 1 1588 0.12 MB/sec execute 73 sec latency 93.921 ms 1 1625 0.12 MB/sec execute 74 sec latency 107.152 ms Stopping /mnt/lustre-mds2 (opts:) on oleg227-server 1 1664 0.12 MB/sec execute 75 sec latency 131.709 ms 1 1667 0.11 MB/sec execute 76 sec latency 970.791 ms 1 1667 0.11 MB/sec execute 77 sec latency 1970.979 ms 1 1667 0.11 MB/sec execute 78 sec latency 2971.263 ms 1 1667 0.11 MB/sec execute 79 sec latency 3973.315 ms 1 1667 0.11 MB/sec execute 80 sec latency 4975.613 ms 1 1667 0.11 MB/sec execute 81 sec latency 5988.658 ms 1 1667 0.11 MB/sec execute 82 sec latency 6989.450 ms 1 1667 0.11 MB/sec execute 83 sec latency 7992.012 ms 02:09:27 (1789020567) shut down facet: mds2 facet_host: oleg227-server facet_failover_host: oleg227-server 1 1667 0.10 MB/sec execute 84 sec latency 8995.074 ms 1 1667 0.10 MB/sec execute 85 sec latency 9995.424 ms 1 1667 0.10 MB/sec execute 86 sec latency 10995.809 ms 1 1667 0.10 MB/sec execute 87 sec latency 11996.006 ms 1 1667 0.10 MB/sec execute 88 sec latency 12999.293 ms 1 1667 0.10 MB/sec execute 89 sec latency 14002.775 ms 1 1667 0.10 MB/sec execute 90 sec latency 15003.015 ms 1 1667 0.10 MB/sec execute 91 sec latency 16003.602 ms 1 1667 0.09 MB/sec execute 92 sec latency 17004.205 ms 1 1667 0.09 MB/sec execute 93 sec latency 18004.476 ms Failover mds2 to oleg227-server 1 1667 0.09 MB/sec execute 94 sec latency 19007.387 ms mount facets: mds2 1 1667 0.09 MB/sec execute 95 sec latency 20010.520 ms 1 1667 0.09 MB/sec execute 96 sec latency 21012.655 ms 1 1667 0.09 MB/sec execute 97 sec latency 22013.158 ms 1 1667 0.09 MB/sec execute 98 sec latency 23014.248 ms 1 1667 0.09 MB/sec execute 99 sec latency 24015.163 ms 1 cleanup 100 sec 1 cleanup 101 sec 1 cleanup 102 sec Start mds2: mount -t lustre -o localrecov /dev/mapper/mds2_flakey /mnt/lustre-mds2 1 cleanup 103 sec 1 cleanup 104 sec 1 cleanup 105 sec 1 cleanup 106 sec 1 cleanup 107 sec 1 cleanup 108 sec 1 cleanup 109 sec oleg227-server: oleg227-server.virtnet: executing set_default_debug -1 all 1 cleanup 110 sec pdsh@oleg227-client: oleg227-server: ssh exited with exit code 1 1 cleanup 111 sec Started lustre-MDT0001 02:09:55 (1789020595) targets are mounted 02:09:55 (1789020595) facet_failover done 1 cleanup 112 sec 1 cleanup 113 sec 1 cleanup 114 sec 1 cleanup 115 sec 0 cleanup 116 sec Operation Count AvgLat MaxLat ---------------------------------------- NTCreateX 192 318.175 49533.762 Close 152 272.341 37294.890 Rename 10 87.964 125.068 Unlink 21 26.484 53.434 Qpathinfo 150 16.991 99.576 Qfileinfo 48 1.509 11.898 Qfsinfo 33 4.553 26.876 Sfileinfo 34 61.628 131.237 Find 61 12.547 47.636 WriteX 183 10.972 100.404 ReadX 256 0.130 7.604 Flush 27 58.930 138.825 Throughput 0.0882715 MB/sec 1 clients 1 procs max_latency=49533.778 ms stopping dbench on /mnt/lustre at Thu Sep 10 02:09:59 EDT 2026 with return code 0 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished oleg227-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0001-mdc-*.mds_server_uuid 1475 0 striped dir -i0 -c2 -H all_char /mnt/lustre2/d26.replay-dual/run_dbench mdc.lustre-MDT0001-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 Thu Sep 10 02:10:08 EDT 2026 waiting for dbench pid 67845 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 17 0.20 MB/sec warmup 1 sec latency 9.299 ms 1 83 1.87 MB/sec warmup 2 sec latency 92.951 ms 1 121 1.83 MB/sec warmup 3 sec latency 182.265 ms UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 1414116 2328 1268976 1% /mnt/lustre[MDT:0] lustre-MDT0001_UUID 1414116 2140 1269164 1% /mnt/lustre[MDT:1] lustre-OST0000_UUID 3833116 20040 3578020 1% /mnt/lustre[OST:0] lustre-OST0001_UUID 3833116 27176 3578400 1% /mnt/lustre[OST:1] filesystem_summary: 7666232 47216 7156420 1% /mnt/lustre 1 151 1.58 MB/sec warmup 4 sec latency 160.046 ms 1 184 1.48 MB/sec warmup 5 sec latency 131.230 ms 1 208 1.35 MB/sec warmup 6 sec latency 315.105 ms 1 253 1.37 MB/sec warmup 7 sec latency 101.175 ms 1 289 1.34 MB/sec warmup 8 sec latency 112.249 ms 1 315 1.27 MB/sec warmup 9 sec latency 153.950 ms 1 340 1.22 MB/sec warmup 10 sec latency 196.321 ms 1 373 1.21 MB/sec warmup 11 sec latency 186.014 ms 1 416 1.22 MB/sec warmup 12 sec latency 176.524 ms test_26 fail mds1 3 times 1 475 1.28 MB/sec warmup 13 sec latency 110.552 ms 1 511 1.26 MB/sec warmup 14 sec latency 156.276 ms 1 542 1.27 MB/sec warmup 15 sec latency 184.937 ms Failing mds1 on oleg227-server 1 639 1.31 MB/sec warmup 16 sec latency 147.110 ms Stopping /mnt/lustre-mds1 (opts:) on oleg227-server 1 676 1.24 MB/sec warmup 17 sec latency 93.300 ms 1 714 1.18 MB/sec warmup 18 sec latency 126.401 ms 1 772 1.12 MB/sec warmup 19 sec latency 114.052 ms 1 884 0.18 MB/sec execute 1 sec latency 163.477 ms 1 884 0.09 MB/sec execute 2 sec latency 1163.685 ms 1 900 0.07 MB/sec execute 3 sec latency 1272.203 ms 1 918 0.07 MB/sec execute 4 sec latency 193.843 ms 1 949 0.06 MB/sec execute 5 sec latency 166.484 ms 1 972 0.05 MB/sec execute 6 sec latency 155.440 ms 02:10:34 (1789020634) shut down facet: mds1 facet_host: oleg227-server facet_failover_host: oleg227-server 1 995 0.06 MB/sec execute 7 sec latency 234.695 ms 1 995 0.05 MB/sec execute 8 sec latency 1236.586 ms 1 995 0.05 MB/sec execute 9 sec latency 2239.223 ms 1 995 0.04 MB/sec execute 10 sec latency 3246.620 ms 1 995 0.04 MB/sec execute 11 sec latency 4247.993 ms 1 995 0.04 MB/sec execute 12 sec latency 5248.365 ms 1 995 0.03 MB/sec execute 13 sec latency 6253.617 ms 1 995 0.03 MB/sec execute 14 sec latency 7253.831 ms 1 995 0.03 MB/sec execute 15 sec latency 8258.553 ms 1 995 0.03 MB/sec execute 16 sec latency 9259.707 ms Failover mds1 to oleg227-server mount facets: mds1 1 995 0.02 MB/sec execute 17 sec latency 10259.839 ms 1 995 0.02 MB/sec execute 18 sec latency 11260.094 ms 1 995 0.02 MB/sec execute 19 sec latency 12260.297 ms 1 995 0.02 MB/sec execute 20 sec latency 13263.295 ms 1 995 0.02 MB/sec execute 21 sec latency 14263.690 ms 1 995 0.02 MB/sec execute 22 sec latency 15265.834 ms 1 995 0.02 MB/sec execute 23 sec latency 16272.520 ms 1 995 0.02 MB/sec execute 24 sec latency 17280.742 ms 1 995 0.02 MB/sec execute 25 sec latency 18281.764 ms 1 995 0.02 MB/sec execute 26 sec latency 19284.999 ms 1 995 0.02 MB/sec execute 27 sec latency 20287.075 ms 1 995 0.02 MB/sec execute 28 sec latency 21288.131 ms Start mds1: mount -t lustre -o localrecov /dev/mapper/mds1_flakey /mnt/lustre-mds1 1 995 0.01 MB/sec execute 29 sec latency 22288.390 ms 1 995 0.01 MB/sec execute 30 sec latency 23289.103 ms 1 995 0.01 MB/sec execute 31 sec latency 24289.941 ms 1 995 0.01 MB/sec execute 32 sec latency 25290.697 ms 1 995 0.01 MB/sec execute 33 sec latency 26291.282 ms 1 995 0.01 MB/sec execute 34 sec latency 27291.528 ms 1 995 0.01 MB/sec execute 35 sec latency 28291.781 ms 1 995 0.01 MB/sec execute 36 sec latency 29292.073 ms oleg227-server: oleg227-server.virtnet: executing set_default_debug -1 all 1 995 0.01 MB/sec execute 37 sec latency 30293.115 ms pdsh@oleg227-client: oleg227-server: ssh exited with exit code 1 1 995 0.01 MB/sec execute 38 sec latency 31293.261 ms Started lustre-MDT0000 02:11:07 (1789020667) targets are mounted 02:11:07 (1789020667) facet_failover done 1 995 0.01 MB/sec execute 39 sec latency 32293.915 ms 1 1011 0.02 MB/sec execute 40 sec latency 32729.609 ms 1 1076 0.04 MB/sec execute 41 sec latency 190.709 ms 1 1130 0.04 MB/sec execute 42 sec latency 87.781 ms 1 1156 0.04 MB/sec execute 43 sec latency 207.536 ms 1 1201 0.04 MB/sec execute 44 sec latency 100.031 ms 1 1244 0.04 MB/sec execute 45 sec latency 113.693 ms oleg227-client.virtnet: executing wait_import_state_mount (FULL|IDLE) mdc.lustre-MDT0000-mdc-*.mds_server_uuid 1475 0 1 1281 0.04 MB/sec execute 46 sec latency 135.772 ms 1 1403 0.10 MB/sec execute 47 sec latency 96.006 ms mdc.lustre-MDT0000-mdc-*.mds_server_uuid in FULL state after 0 sec 1 1445 0.09 MB/sec execute 48 sec latency 111.552 ms 1 1481 0.09 MB/sec execute 49 sec latency 290.839 ms 1 1532 0.09 MB/sec execute 50 sec latency 87.594 ms 1 1591 0.09 MB/sec execute 51 sec latency 116.214 ms 1 1646 0.09 MB/sec execute 52 sec latency 110.219 ms 1 1687 0.09 MB/sec execute 53 sec latency 112.723 ms 1 1750 0.09 MB/sec execute 54 sec latency 99.945 ms 1 1813 0.09 MB/sec execute 55 sec latency 111.652 ms 1 1849 0.09 MB/sec execute 56 sec latency 192.893 ms 1 1906 0.09 MB/sec execute 57 sec latency 126.523 ms tar: Unexpected EOF in archive tar: Unexpected EOF in archive 1 1982 0.09 MB/sec execute 58 sec latency 85.039 ms 1 2020 0.09 MB/sec execute 59 sec latency 102.814 ms 1 2081 0.09 MB/sec execute 60 sec latency 95.803 ms 1 2148 0.09 MB/sec execute 61 sec latency 93.370 ms 1 2198 0.08 MB/sec execute 62 sec latency 116.041 ms 1 2303 0.10 MB/sec execute 63 sec latency 61.797 ms 1 2359 0.10 MB/sec execute 64 sec latency 92.252 ms 1 2406 0.10 MB/sec execute 65 sec latency 76.737 ms 1 2441 0.10 MB/sec execute 66 sec latency 102.017 ms tar: Error is not recoverable: exiting now 1 2482 0.11 MB/sec execute 67 sec latency 89.272 ms dbench killed by signal 15 stopping dbench on /mnt/lustre at Thu Sep 10 02:11:36 EDT 2026 with return code 0 67845 pts/0 S+ 0:00 dbench -c client.txt 1 -D /mnt/lustre2/d26.replay-dual/run_dbench -t 100 killed dbench main pid 67845 clean dbench files on /mnt/lustre /mnt/lustre /mnt/lustre removed 'client.txt' /mnt/lustre dbench successfully finished