<div dir="ltr">First glance indicates you're having network connectivity problems, (possibly driver issue with your NIC?)<div><br></div><div>(Check MTU settings, etc?)</div><div><br></div><div>-cf</div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Aug 11, 2016 at 7:43 AM, Phill Harvey-Smith <span dir="ltr"><<a href="mailto:p.harvey-smith@warwick.ac.uk" target="_blank">p.harvey-smith@warwick.ac.uk</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi all,<br>
<br>
I have a (fairly urgent) problem.<br>
<br>
I have been updating our cluster to Ubuntu 16.04, which has on the whole gone well, however in the last part I have run across a rather serious error.<br>
<br>
Our frontend node has an instance of samba that shares out the home directories, we have found that writing to a file on /home will cause the /home mount to timeout and become inacessable.<br>
<br>
The errors that are reported in the journal are like so :<br>
<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Aug 11 10:06:34 buster-fe0 kernel: Lustre: Lustre: Build Version: 2.8.53_51_g3680fa1_dirty<br>
Aug 11 10:06:34 buster-fe0 kernel: Lustre: Server MGS version (2.1.0.0) is much older than client. Consider upgrading server (2.8.53_51_g3680fa1_dirty)<br>
Aug 11 10:06:34 buster-fe0 kernel: Lustre: Trying to mount a client with IR setting not compatible with current mgc. Force to use current mgc setting that is IR disabled.<br>
Aug 11 10:06:34 buster-fe0 kernel: Lustre: Mounted home-client<br>
Aug 11 10:06:34 buster-fe0 mount[4687]: mount.lustre: addmntent: Invalid argument:<br>
Aug 11 10:06:34 buster-fe0 mount[4691]: mount.lustre: addmntent: Invalid argument:<br>
Aug 11 10:06:34 buster-fe0 mount[4670]: mount.lustre: addmntent: Invalid argument:<br>
Aug 11 10:06:35 buster-fe0 systemd[1]: Started Lustre setup.<br>
Aug 11 10:06:37 buster-fe0 lustre.sh[4870]: <a href="http://llite.home-ffff881005c37800.cr">llite.home-ffff881005c37800.cr</a><wbr>eate_no_open_optimization=0<br>
Aug 11 13:48:12 buster-fe0 kernel: Lustre: 20221:0:(client.c:2067:ptlrpc_<wbr>expire_one_request()) @@@ Request sent has timed out for slow reply: [sent 1470919685/real 1470919685] req@ffff8807e6076c00 x1542357171466016/t0(0) o55->home-MDT0000-mdc-ffff8810<wbr>05c37800@192.168.0.4@tcp:12/10 lens 592/224 e 0 to 1 dl 1470919692 ref 2 fl Rpc:X/0/ffffffff rc 0/-1<br>
Aug 11 13:48:12 buster-fe0 kernel: Lustre: home-MDT0000-mdc-ffff881005c37<wbr>800: Connection to home-MDT0000 (at 192.168.0.4@tcp) was lost; in progress operations using this service will wait for recovery to complete<br>
Aug 11 13:48:12 buster-fe0 kernel: Lustre: home-MDT0000-mdc-ffff881005c37<wbr>800: Connection restored to 192.168.0.4@tcp (at 192.168.0.4@tcp)<br>
Aug 11 13:48:19 buster-fe0 kernel: Lustre: 20221:0:(client.c:2067:ptlrpc_<wbr>expire_one_request()) @@@ Request sent has timed out for slow reply: [sent 1470919692/real 1470919692] req@ffff8807e6076c00 x1542357171466016/t0(0) o55->home-MDT0000-mdc-ffff8810<wbr>05c37800@192.168.0.4@tcp:12/10 lens 592/224 e 0 to 1 dl 1470919699 ref 2 fl Rpc:X/2/ffffffff rc 0/-1<br>
Aug 11 13:48:19 buster-fe0 kernel: Lustre: home-MDT0000-mdc-ffff881005c37<wbr>800: Connection to home-MDT0000 (at 192.168.0.4@tcp) was lost; in progress operations using this service will wait for recovery to complete<br>
Aug 11 13:48:19 buster-fe0 kernel: Lustre: home-MDT0000-mdc-ffff881005c37<wbr>800: Connection restored to 192.168.0.4@tcp (at 192.168.0.4@tcp)<br>
Aug 11 13:48:26 buster-fe0 kernel: Lustre: 20221:0:(client.c:2067:ptlrpc_<wbr>expire_one_request()) @@@ Request sent has timed out for slow reply: [sent 1470919699/real 1470919699] req@ffff8807e6076c00 x1542357171466016/t0(0) o55->home-MDT0000-mdc-ffff8810<wbr>05c37800@192.168.0.4@tcp:12/10 lens 592/224 e 0 to 1 dl 1470919706 ref 2 fl Rpc:X/2/ffffffff rc 0/-1<br>
Aug 11 13:48:26 buster-fe0 kernel: Lustre: home-MDT0000-mdc-ffff881005c37<wbr>800: Connection to home-MDT0000 (at 192.168.0.4@tcp) was lost; in progress operations using this service will wait for recovery to complete<br>
Aug 11 13:48:26 buster-fe0 kernel: Lustre: home-MDT0000-mdc-ffff881005c37<wbr>800: Connection restored to 192.168.0.4@tcp (at 192.168.0.4@tcp)<br>
Aug 11 13:48:33 buster-fe0 kernel: Lustre: 20221:0:(client.c:2067:ptlrpc_<wbr>expire_one_request()) @@@ Request sent has timed out for slow reply: [sent 1470919706/real 1470919706] req@ffff8807e6076c00 x1542357171466016/t0(0) o55->home-MDT0000-mdc-ffff8810<wbr>05c37800@192.168.0.4@tcp:12/10 lens 592/224 e 0 to 1 dl 1470919713 ref 2 fl Rpc:X/2/ffffffff rc 0/-1<br>
Aug 11 13:48:33 buster-fe0 kernel: Lustre: home-MDT0000-mdc-ffff881005c37<wbr>800: Connection to home-MDT0000 (at 192.168.0.4@tcp) was lost; in progress operations using this service will wait for recovery to complete<br>
Aug 11 13:48:33 buster-fe0 kernel: Lustre: home-MDT0000-mdc-ffff881005c37<wbr>800: Connection restored to 192.168.0.4@tcp (at 192.168.0.4@tcp)<br>
Aug 11 13:48:40 buster-fe0 kernel: Lustre: 20221:0:(client.c:2067:ptlrpc_<wbr>expire_one_request()) @@@ Request sent has timed out for slow reply: [sent 1470919713/real 1470919713] req@ffff8807e6076c00 x1542357171466016/t0(0) o55->home-MDT0000-mdc-ffff8810<wbr>05c37800@192.168.0.4@tcp:12/10 lens 592/224 e 0 to 1 dl 1470919720 ref 2 fl Rpc:X/2/ffffffff rc 0/-1<br>
Aug 11 13:48:40 buster-fe0 kernel: Lustre: home-MDT0000-mdc-ffff881005c37<wbr>800: Connection to home-MDT0000 (at 192.168.0.4@tcp) was lost; in progress operations using this service will wait for recovery to complete<br>
Aug 11 13:48:40 buster-fe0 kernel: Lustre: home-MDT0000-mdc-ffff881005c37<wbr>800: Connection restored to 192.168.0.4@tcp (at 192.168.0.4@tcp)<br>
Aug 11 13:48:54 buster-fe0 kernel: Lustre: 20221:0:(client.c:2067:ptlrpc_<wbr>expire_one_request()) @@@ Request sent has timed out for slow reply: [sent 1470919727/real 1470919727] req@ffff8807e6076c00 x1542357171466016/t0(0) o55->home-MDT0000-mdc-ffff8810<wbr>05c37800@192.168.0.4@tcp:12/10 lens 592/224 e 0 to 1 dl 1470919734 ref 2 fl Rpc:X/2/ffffffff rc 0/-1<br>
Aug 11 13:48:54 buster-fe0 kernel: Lustre: 20221:0:(client.c:2067:ptlrpc_<wbr>expire_one_request()) Skipped 1 previous similar message<br>
Aug 11 13:48:54 buster-fe0 kernel: Lustre: home-MDT0000-mdc-ffff881005c37<wbr>800: Connection to home-MDT0000 (at 192.168.0.4@tcp) was lost; in progress operations using this service will wait for recovery to complete<br>
Aug 11 13:48:54 buster-fe0 kernel: Lustre: Skipped 1 previous similar message<br>
Aug 11 13:48:54 buster-fe0 kernel: Lustre: home-MDT0000-mdc-ffff881005c37<wbr>800: Connection restored to 192.168.0.4@tcp (at 192.168.0.4@tcp)<br>
Aug 11 13:48:54 buster-fe0 kernel: Lustre: Skipped 1 previous similar message<br>
Aug 11 13:49:15 buster-fe0 kernel: Lustre: 20221:0:(client.c:2067:ptlrpc_<wbr>expire_one_request()) @@@ Request sent has timed out for slow reply: [sent 1470919748/real 1470919748] req@ffff8807e6076c00 x1542357171466016/t0(0) o55->home-MDT0000-mdc-ffff8810<wbr>05c37800@192.168.0.4@tcp:12/10 lens 592/224 e 0 to 1 dl 1470919755 ref 2 fl Rpc:X/2/ffffffff rc 0/-1<br>
Aug 11 13:49:15 buster-fe0 kernel: Lustre: 20221:0:(client.c:2067:ptlrpc_<wbr>expire_one_request()) Skipped 2 previous similar messages<br>
Aug 11 13:49:15 buster-fe0 kernel: Lustre: home-MDT0000-mdc-ffff881005c37<wbr>800: Connection to home-MDT0000 (at 192.168.0.4@tcp) was lost; in progress operations using this service will wait for recovery to complete<br>
Aug 11 13:49:15 buster-fe0 kernel: Lustre: Skipped 2 previous similar messages<br>
Aug 11 13:49:15 buster-fe0 kernel: Lustre: home-MDT0000-mdc-ffff881005c37<wbr>800: Connection restored to 192.168.0.4@tcp (at 192.168.0.4@tcp)<br>
Aug 11 13:49:15 buster-fe0 kernel: Lustre: Skipped 2 previous similar messages<br>
Aug 11 13:49:50 buster-fe0 kernel: Lustre: 20221:0:(client.c:2067:ptlrpc_<wbr>expire_one_request()) @@@ Request sent has timed out for slow reply: [sent 1470919783/real 1470919783] req@ffff8807e6076c00 x1542357171466016/t0(0) o55->home-MDT0000-mdc-ffff8810<wbr>05c37800@192.168.0.4@tcp:12/10 lens 592/224 e 0 to 1 dl 1470919790 ref 2 fl Rpc:X/2/ffffffff rc 0/-1<br>
Aug 11 13:49:50 buster-fe0 kernel: Lustre: 20221:0:(client.c:2067:ptlrpc_<wbr>expire_one_request()) Skipped 4 previous similar messages<br>
Aug 11 13:49:50 buster-fe0 kernel: Lustre: home-MDT0000-mdc-ffff881005c37<wbr>800: Connection to home-MDT0000 (at 192.168.0.4@tcp) was lost; in progress operations using this service will wait for recovery to complete<br>
Aug 11 13:49:50 buster-fe0 kernel: Lustre: Skipped 4 previous similar messages<br>
Aug 11 13:49:50 buster-fe0 kernel: Lustre: home-MDT0000-mdc-ffff881005c37<wbr>800: Connection restored to 192.168.0.4@tcp (at 192.168.0.4@tcp)<br>
Aug 11 13:49:50 buster-fe0 kernel: Lustre: Skipped 4 previous similar messages<br>
Aug 11 13:51:00 buster-fe0 kernel: Lustre: 20221:0:(client.c:2067:ptlrpc_<wbr>expire_one_request()) @@@ Request sent has timed out for slow reply: [sent 1470919853/real 1470919853] req@ffff8807e6076c00 x1542357171466016/t0(0) o55->home-MDT0000-mdc-ffff8810<wbr>05c37800@192.168.0.4@tcp:12/10 lens 592/224 e 0 to 1 dl 1470919860 ref 2 fl Rpc:X/2/ffffffff rc 0/-1<br>
Aug 11 13:51:00 buster-fe0 kernel: Lustre: 20221:0:(client.c:2067:ptlrpc_<wbr>expire_one_request()) Skipped 9 previous similar messages<br>
Aug 11 13:51:00 buster-fe0 kernel: Lustre: home-MDT0000-mdc-ffff881005c37<wbr>800: Connection to home-MDT0000 (at 192.168.0.4@tcp) was lost; in progress operations using this service will wait for recovery to complete<br>
Aug 11 13:51:00 buster-fe0 kernel: Lustre: Skipped 9 previous similar messages<br>
Aug 11 13:51:00 buster-fe0 kernel: Lustre: home-MDT0000-mdc-ffff881005c37<wbr>800: Connection restored to 192.168.0.4@tcp (at 192.168.0.4@tcp)<br>
Aug 11 13:51:00 buster-fe0 kernel: Lustre: Skipped 9 previous similar messages<br>
Aug 11 13:53:13 buster-fe0 kernel: Lustre: 20221:0:(client.c:2067:ptlrpc_<wbr>expire_one_request()) @@@ Request sent has timed out for slow reply: [sent 1470919986/real 1470919986] req@ffff8807e6076c00 x1542357171466016/t0(0) o55->home-MDT0000-mdc-ffff8810<wbr>05c37800@192.168.0.4@tcp:12/10 lens 592/224 e 0 to 1 dl 1470919993 ref 2 fl Rpc:X/2/ffffffff rc 0/-1<br>
Aug 11 13:53:13 buster-fe0 kernel: Lustre: 20221:0:(client.c:2067:ptlrpc_<wbr>expire_one_request()) Skipped 18 previous similar messages<br>
Aug 11 13:53:13 buster-fe0 kernel: Lustre: home-MDT0000-mdc-ffff881005c37<wbr>800: Connection to home-MDT0000 (at 192.168.0.4@tcp) was lost; in progress operations using this service will wait for recovery to complete<br>
Aug 11 13:53:13 buster-fe0 kernel: Lustre: Skipped 18 previous similar messages<br>
Aug 11 13:53:13 buster-fe0 kernel: Lustre: home-MDT0000-mdc-ffff881005c37<wbr>800: Connection restored to 192.168.0.4@tcp (at 192.168.0.4@tcp)<br>
Aug 11 13:53:13 buster-fe0 kernel: Lustre: Skipped 18 previous similar messages<br>
Aug 11 13:55:38 buster-fe0 kernel: [<ffffffffc0c588fc>] ? ll_lookup_finish_locks+0xfc/0x<wbr>8a0 [lustre]<br>
Aug 11 13:57:32 buster-fe0 kernel: Lustre: 20221:0:(client.c:2067:ptlrpc_<wbr>expire_one_request()) @@@ Request sent has timed out for slow reply: [sent 1470920245/real 1470920245] req@ffff8807e6076c00 x1542357171466016/t0(0) o55->home-MDT0000-mdc-ffff8810<wbr>05c37800@192.168.0.4@tcp:12/10 lens 592/224 e 0 to 1 dl 1470920252 ref 2 fl Rpc:X/2/ffffffff rc 0/-1<br>
Aug 11 13:57:32 buster-fe0 kernel: Lustre: 20221:0:(client.c:2067:ptlrpc_<wbr>expire_one_request()) Skipped 36 previous similar messages<br>
Aug 11 13:57:32 buster-fe0 kernel: Lustre: home-MDT0000-mdc-ffff881005c37<wbr>800: Connection to home-MDT0000 (at 192.168.0.4@tcp) was lost; in progress operations using this service will wait for recovery to complete<br>
Aug 11 13:57:32 buster-fe0 kernel: Lustre: Skipped 36 previous similar messages<br>
Aug 11 13:57:32 buster-fe0 kernel: Lustre: home-MDT0000-mdc-ffff881005c37<wbr>800: Connection restored to 192.168.0.4@tcp (at 192.168.0.4@tcp)<br>
Aug 11 13:57:32 buster-fe0 kernel: Lustre: Skipped 36 previous similar messages<br>
Aug 11 13:57:38 buster-fe0 kernel: [<ffffffffc0c588fc>] ? ll_lookup_finish_locks+0xfc/0x<wbr>8a0 [lustre]<br>
Aug 11 13:57:38 buster-fe0 kernel: [<ffffffffc0c588fc>] ? ll_lookup_finish_locks+0xfc/0x<wbr>8a0 [lustre]<br>
Aug 11 13:57:38 buster-fe0 kernel: [<ffffffffc0c588fc>] ? ll_lookup_finish_locks+0xfc/0x<wbr>8a0 [lustre]<br>
Aug 11 13:59:38 buster-fe0 kernel: [<ffffffffc0c588fc>] ? ll_lookup_finish_locks+0xfc/0x<wbr>8a0 [lustre]<br>
Aug 11 13:59:38 buster-fe0 kernel: [<ffffffffc0c588fc>] ? ll_lookup_finish_locks+0xfc/0x<wbr>8a0 [lustre]<br>
Aug 11 13:59:38 buster-fe0 kernel: [<ffffffffc0c588fc>] ? ll_lookup_finish_locks+0xfc/0x<wbr>8a0 [lustre]<br>
Aug 11 14:06:10 buster-fe0 kernel: Lustre: 20221:0:(client.c:2067:ptlrpc_<wbr>expire_one_request()) @@@ Request sent has timed out for slow reply: [sent 1470920763/real 1470920763] req@ffff8807e6076c00 x1542357171466016/t0(0) o55->home-MDT0000-mdc-ffff8810<wbr>05c37800@192.168.0.4@tcp:12/10 lens 592/224 e 0 to 1 dl 1470920770 ref 2 fl Rpc:X/2/ffffffff rc 0/-1<br>
Aug 11 14:06:10 buster-fe0 kernel: Lustre: 20221:0:(client.c:2067:ptlrpc_<wbr>expire_one_request()) Skipped 73 previous similar messages<br>
Aug 11 14:06:10 buster-fe0 kernel: Lustre: home-MDT0000-mdc-ffff881005c37<wbr>800: Connection to home-MDT0000 (at 192.168.0.4@tcp) was lost; in progress operations using this service will wait for recovery to complete<br>
Aug 11 14:06:10 buster-fe0 kernel: Lustre: Skipped 73 previous similar messages<br>
Aug 11 14:06:10 buster-fe0 kernel: Lustre: home-MDT0000-mdc-ffff881005c37<wbr>800: Connection restored to 192.168.0.4@tcp (at 192.168.0.4@tcp)<br>
Aug 11 14:06:10 buster-fe0 kernel: Lustre: Skipped 73 previous similar messages<br>
Aug 11 14:16:12 buster-fe0 kernel: Lustre: 20221:0:(client.c:2067:ptlrpc_<wbr>expire_one_request()) @@@ Request sent has timed out for slow reply: [sent 1470921365/real 1470921365] req@ffff8807e6076c00 x1542357171466016/t0(0) o55->home-MDT0000-mdc-ffff8810<wbr>05c37800@192.168.0.4@tcp:12/10 lens 592/224 e 0 to 1 dl 1470921372 ref 2 fl Rpc:X/2/ffffffff rc 0/-1<br>
Aug 11 14:16:12 buster-fe0 kernel: Lustre: 20221:0:(client.c:2067:ptlrpc_<wbr>expire_one_request()) Skipped 85 previous similar messages<br>
Aug 11 14:16:12 buster-fe0 kernel: Lustre: home-MDT0000-mdc-ffff881005c37<wbr>800: Connection to home-MDT0000 (at 192.168.0.4@tcp) was lost; in progress operations using this service will wait for recovery to complete<br>
Aug 11 14:16:12 buster-fe0 kernel: Lustre: Skipped 85 previous similar messages<br>
Aug 11 14:16:12 buster-fe0 kernel: Lustre: home-MDT0000-mdc-ffff881005c37<wbr>800: Connection restored to 192.168.0.4@tcp (at 192.168.0.4@tcp)<br>
Aug 11 14:16:12 buster-fe0 kernel: Lustre: Skipped 85 previous similar messages<br>
Aug 11 14:26:14 buster-fe0 kernel: Lustre: 20221:0:(client.c:2067:ptlrpc_<wbr>expire_one_request()) @@@ Request sent has timed out for slow reply: [sent 1470921967/real 1470921967] req@ffff8807e6076c00 x1542357171466016/t0(0) o55->home-MDT0000-mdc-ffff8810<wbr>05c37800@192.168.0.4@tcp:12/10 lens 592/224 e 0 to 1 dl 1470921974 ref 2 fl Rpc:X/2/ffffffff rc 0/-1<br>
Aug 11 14:26:14 buster-fe0 kernel: Lustre: 20221:0:(client.c:2067:ptlrpc_<wbr>expire_one_request()) Skipped 85 previous similar messages<br>
Aug 11 14:26:14 buster-fe0 kernel: Lustre: home-MDT0000-mdc-ffff881005c37<wbr>800: Connection to home-MDT0000 (at 192.168.0.4@tcp) was lost; in progress operations using this service will wait for recovery to complete<br>
Aug 11 14:26:14 buster-fe0 kernel: Lustre: Skipped 85 previous similar messages<br>
Aug 11 14:26:14 buster-fe0 kernel: Lustre: home-MDT0000-mdc-ffff881005c37<wbr>800: Connection restored to 192.168.0.4@tcp (at 192.168.0.4@tcp)<br>
Aug 11 14:26:14 buster-fe0 kernel: Lustre: Skipped 85 previous similar messages<br>
Aug 11 14:36:16 buster-fe0 kernel: Lustre: 20221:0:(client.c:2067:ptlrpc_<wbr>expire_one_request()) @@@ Request sent has timed out for slow reply: [sent 1470922569/real 1470922569] req@ffff8807e6076c00 x1542357171466016/t0(0) o55->home-MDT0000-mdc-ffff8810<wbr>05c37800@192.168.0.4@tcp:12/10 lens 592/224 e 0 to 1 dl 1470922576 ref 2 fl Rpc:X/2/ffffffff rc 0/-1<br>
Aug 11 14:36:16 buster-fe0 kernel: Lustre: 20221:0:(client.c:2067:ptlrpc_<wbr>expire_one_request()) Skipped 85 previous similar messages<br>
Aug 11 14:36:16 buster-fe0 kernel: Lustre: home-MDT0000-mdc-ffff881005c37<wbr>800: Connection to home-MDT0000 (at 192.168.0.4@tcp) was lost; in progress operations using this service will wait for recovery to complete<br>
Aug 11 14:36:16 buster-fe0 kernel: Lustre: Skipped 85 previous similar messages<br>
Aug 11 14:36:16 buster-fe0 kernel: Lustre: home-MDT0000-mdc-ffff881005c37<wbr>800: Connection restored to 192.168.0.4@tcp (at 192.168.0.4@tcp)<br>
Aug 11 14:36:16 buster-fe0 kernel: Lustre: Skipped 85 previous similar messages<br>
</blockquote>
<br>
I also can't get the recently checked out sources to compile, but will post a seperate query about that. :)<br>
<br>
Cheers.<br>
<br>
Phill.<br>
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