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-13474 Lustre <p>When srpc rules are enabled, either for Kerberos or SSK, Lustre HA failover is broken. That is to say, clients might not able to reconnect to targets that have been stopped and then restarted, whether on initial or pair node.</p> LU-13474

Lustre failover fails when SRPC enabled

Bug Minor Resolved Fixed Sebastien Buisson Sebastien Buisson gss patch Wed, 22 Apr 2020 12:10:19 +0000 Wed, 16 Dec 2020 13:35:25 +0000 Thu, 3 Dec 2020 14:49:19 +0000 Lustre 2.14.0 Lustre 2.12.4 Lustre 2.14.0 0 3 <p>The problem stems from the fact that clients are not able to try to connect to other service nodes for authentication requests. This is because the servers that receive an authentication request for a target that is not available for connect would simply drop the request, instead of returning an error to the client.</p> <p>Sebastien Buisson (sbuisson@ddn.com) uploaded a new patch: <a href="https://review.whamcloud.com/38310" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/38310</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13474" title="Lustre failover fails when SRPC enabled" class="issue-link" data-issue-key="LU-13474"><del>LU-13474</del></a> gss: return gss error when target not available<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: ac17f865417d923f5ba5926f720ed7ddc95bb662</p> <p>The first version of the patch was not working in all situations, for instance when a server has no running target. Indeed, in this case, the server is not able to return an error to the client.</p> <p>The second version of the patch implements a different solution. Now, the client is prevented from restarting GSS negotiation immediately if the RPC to the server timed out. It will let the HA failover mechanism try different service nodes.</p> <p>Oleg Drokin (green@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/38310/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/38310/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13474" title="Lustre failover fails when SRPC enabled" class="issue-link" data-issue-key="LU-13474"><del>LU-13474</del></a> gss: do not return -ERESTART when gss rpc times out<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: 79c8abecdac052e3e00251547cc500f2cba742ab</p> <p>Landed for 2.14</p> <p>Sebastien Buisson (sbuisson@ddn.com) uploaded a new patch: <a href="https://review.whamcloud.com/40995" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/40995</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13474" title="Lustre failover fails when SRPC enabled" class="issue-link" data-issue-key="LU-13474"><del>LU-13474</del></a> gss: do not return -ERESTART when gss rpc times out<br/> Project: fs/lustre-release<br/> Branch: b2_12<br/> Current Patch Set: 1<br/> Commit: a963bddeacb6faec17e0aa4cfae8924a2771f512</p> Related Development Rank 1|i00yhb: Rank (Obsolete) 9223372036854775807 Severity