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-11144 Lustre <p>It appears to me that dynamic discovery will not be triggered for LNet routers under normal operating conditions (i.e. without an explicit lnetctl discover of the routers).</p> <p>The discovery logic is early in lnet_select_pathway() and based on the peer associated with the dst_nid. The only LNetGet where dst_nid is a router is going to be the router checker traffic. But that traffic goes on the LNET_RESERVED_PORTAL, so it will never trigger discovery.<br/> Seems like we need to check for discovery of the router peer after selecting it later in lnet_select_pathway().</p> LU-11144

Dynamic Discovery is not triggered for router peers

Bug Minor Closed Fixed Amir Shehata Chris Horn LNet Wed, 11 Jul 2018 19:33:25 +0000 Fri, 27 Jan 2023 17:05:53 +0000 Fri, 27 Jan 2023 17:05:53 +0000 0 6 <p>I think what I was missing with router peers and dynamic discovery is the DD push<br/> router should queue other peers for discovery based on where it is forwarding traffic, and the discovery thread should push the router's MR info to those peers as part of that. Right?</p> <p>So while the description in this ticket is, I believe, accurate it's probably by design and not necessarily a problem.</p> <p>both <a href="https://jira.whamcloud.com/browse/LU-11143" title="Multi-Rail/Dynamic Discovery break LNet router checker and asymmetric route failure detection" class="issue-link" data-issue-key="LU-11143"><del>LU-11143</del></a> and <a href="https://jira.whamcloud.com/browse/LU-11144" title="Dynamic Discovery is not triggered for router peers" class="issue-link" data-issue-key="LU-11144"><del>LU-11144</del></a> are related.</p> <p>I address them here:</p> <p><a href="https://wiki.whamcloud.com/display/LNet/Routing+and+MR+integration" class="external-link" target="_blank" rel="nofollow noopener">https://wiki.whamcloud.com/display/LNet/Routing+and+MR+integration</a></p> <p>Might be a good idea to use that link for feedback on the proposals</p> <p><a href="https://jira.whamcloud.com/secure/ViewProfile.jspa?name=ashehata" class="user-hover" rel="ashehata">ashehata</a>, ready to resolve this and <a href="https://jira.whamcloud.com/browse/LU-11143" title="Multi-Rail/Dynamic Discovery break LNet router checker and asymmetric route failure detection" class="issue-link" data-issue-key="LU-11143"><del>LU-11143</del></a>?</p> <p>I believe this issue has been resolved in the new routing code.</p> <p><a href="https://jira.whamcloud.com/secure/ViewProfile.jspa?name=ashehata" class="user-hover" rel="ashehata">ashehata</a>, will you be resolving this issue then? Can you point at a specific commit or LU that resolved it?</p> <p>Resolved with MR routing feature</p> Related LU-11297 LU-11143 Development Rank 1|hzzz2f: Rank (Obsolete) 9223372036854775807 Severity