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-10889 Lustre <p>A client can resend requests and a server have ability to find a duplicate requests. In this case a server drops the request. As a result the client request deadline is different than the deadline for same request at server.<br/> For example</p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>00000100:00080000:11.1F:1468964870.796746:0:27071:0:(service.c:1556:ptlrpc_server_check_resend_in_progress()) @@@ Found duplicate req in processing req@ffff880d9168b080 x1539226900119556/t0(0) o101-&gt;08998e08-887e-a620-6fb3-36cb6d9403ee@2145@gni1:-1/-1 lens 576/0 e 0 to 0 dl 1468965375 ref 1 fl New:/2/ffffffff rc 0/-1 00000100:00080000:11.1:1468964870.796752:0:27071:0:(service.c:1557:ptlrpc_server_check_resend_in_progress()) @@@ Request being processed req@ffff880cd7f5dcc0 x1539226900119556/t0(0) o101-&gt;08998e08-887e-a620-6fb3-36cb6d9403ee@2145@gni1:-1/-1 lens 576/0 e 0 to 0 dl 1468965030 ref 1 fl New:/0/ffffffff rc 0/-1 </pre> </div></div> <p>At client request x1539226900119556 has deadline 1468965375, at server 1468965030. So, in the worst case the client will wait for 345sec long than server for the request.<br/>  </p> LU-10889

Inconsistent request deadline between client and server.

Bug Major Resolved Fixed Alexander Boyko Alexander Boyko patch Mon, 9 Apr 2018 11:57:40 +0000 Sun, 6 Jun 2021 07:40:56 +0000 Thu, 19 Apr 2018 13:00:54 +0000 Lustre 2.12.0 0 4 <p>Alexandr Boyko (c17825@cray.com) uploaded a new patch: <a href="https://review.whamcloud.com/31910" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/31910</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-10889" title="Inconsistent request deadline between client and server." class="issue-link" data-issue-key="LU-10889"><del>LU-10889</del></a> ptlrpc: update req timeout if resending happened<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 745ac133737b43e88c8bdbaa250850a46de8116c</p> <p>This is only an issue if the server fails, and the client does not get IR notification of this and waits longer before a resend?</p> <p>On a related note (which is what I'd thought your patch was fixing), if you are working on this area of code you might consider to fix <a href="https://jira.whamcloud.com/browse/LU-8750" title="Wrong obd_timeout on the client when we have 2 or more lustre fs" class="issue-link" data-issue-key="LU-8750"><del>LU-8750</del></a>.</p> <p>Oleg Drokin (oleg.drokin@intel.com) merged in patch <a href="https://review.whamcloud.com/31910/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/31910/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-10889" title="Inconsistent request deadline between client and server." class="issue-link" data-issue-key="LU-10889"><del>LU-10889</del></a> ptlrpc: update req timeout if resending happened<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: b4603a9e81239b4e6021c640c1d24e4ed8f8fc4b</p> <p>Landed for 2.12</p> Related Development Epic timeout Rank 1|hzzvh3: Rank (Obsolete) 9223372036854775807 Severity