https://jira.whamcloud.com This file is an XML representation of an issue en-us 9.4.14 940014 05-12-2023 https://jira.whamcloud.com/browse/LU-2257 Lustre <p>The MDS evicted one client during recovery:</p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>2012-10-30 23:31:31 Lustre: lstest-MDT0000: Recovery over after 1:11, of 448 clients 447 recovered and 1 was evicted. </pre> </div></div> <p>The client had this to say:</p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>00000100:00000400:1.0:1351665089.361406:0:4759:0:(client.c:2702:ptlrpc_replay_interpret()) @@@ Version mismatch during replay req@ffff8808156d5400 x1417272286137308/t60416147281(60416147281) o101-&gt;lstest-MDT0000-mdc-ffff88101c53c800@172.20.5.2@o2ib500:12/10 lens 784/544 e 0 to 0 dl 1351665195 ref 2 fl Interpret:R/4/0 rc -75/-75 00000100:00000100:1.0:1351665195.391323:0:4759:0:(client.c:1914:ptlrpc_expire_one_request()) @@@ Request sent has timed out for slow reply: [sent 1351665089/real 1351665089] req@ffff8808037b2000 x1417272286147651/t0(0) o400-&gt;lstest-MDT0000-mdc-ffff88101c53c800@172.20.5.2@o2ib500:12/10 lens 224/224 e 0 to 1 dl 1351665195 ref 1 fl Rpc:X/c0/ffffffff rc 0/-1 00000100:00000400:1.0:1351665195.391332:0:4759:0:(import.c:1207:completed_replay_interpret()) lstest-MDT0000-mdc-ffff88101c53c800: version recovery fails, reconnecting 00000100:02020000:1.0:1351665195.404955:0:4759:0:(import.c:1325:ptlrpc_import_recovery_state_machine()) 167-0: lstest-MDT0000-mdc-ffff88101c53c800: This client was evicted by lstest-MDT0000; in progress operations using this service will fail. 00000080:00020000:8.0:1351665195.420248:0:21538:0:(file.c:155:ll_close_inode_openhandle()) inode 144115590443843479 mdc close failed: rc = -5 00000100:02000000:10.0:1351665195.420776:0:21623:0:(import.c:1403:ptlrpc_import_recovery_state_machine()) lstest-MDT0000-mdc-ffff88101c53c800: Connection restored to lstest-MDT0000 (at 172.20.5.2@o2ib500) </pre> </div></div> <p>The application (IOR) failed with ENOENT on a write:</p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>Commencing write performance test: Tue Oct 30 23:11:39 2012 ior ERROR: stat() failed, errno 2, No such file or directory (aiori-POSIX.c:323) </pre> </div></div> <p>We'd like to understand why this client was evicted and what the version recovery error messages mean.</p> <p>LLNL-bug-id: bz1867</p> <a href="https://github.com/chaos/lustre/commits/2.3.54-llnl">https://github.com/chaos/lustre/commits/2.3.54-llnl</a><br/> LU-2257

eviction from MDT during recovery

Bug Major Closed Cannot Reproduce Mikhail Pershin Ned Bass Thu, 1 Nov 2012 13:27:55 +0000 Wed, 22 May 2013 23:39:38 +0000 Wed, 22 May 2013 23:15:34 +0000 0 4 <p>Alex</p> <p>Could someone please look into this one?</p> <p>Thanks</p> <p>Peter</p> <p>the import message was about version mismatch:</p> <p>00000100:00000400:1.0:1351665089.361406:0:4759:0:(client.c:2702:ptlrpc_replay_interpret()) @@@ Version mismatch during replay</p> <p>I think Mike can look at this.</p> <p>Are lustre logs from MDS available? Or any logs. I can't say what exactly happened there. In general that means operation replay on server expected different version of object than it has.</p> <p>This issue is pretty stale. I don't think we've seen it for a long time, so I'm resolving it.</p> Development Rank 1|hzvbh3: Rank (Obsolete) 5400 Severity