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-9184 Lustre <p>Collection of patches to land prior Data-on-MDT feature. So far there are:</p> <ul> <li>selective IBITS lock trying</li> <li>unified grants code</li> <li>constants to reserve for Data-on-MDT</li> </ul> LU-9184

early patches for Data-on-MDT support

Improvement Minor Resolved Fixed Mikhail Pershin Mikhail Pershin Mon, 6 Mar 2017 11:24:54 +0000 Tue, 27 Mar 2018 16:37:52 +0000 Tue, 27 Mar 2018 16:37:52 +0000 Lustre 2.10.0 Lustre 2.11.0 0 3 <p>Selective IBITS lock try patch : <a href="https://review.whamcloud.com/#/c/25262/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/#/c/25262/</a></p> <p>Current lock try scheme mixes mandatory bits with bits to try and enqueu them along with LDLM_FL_BLOCK_NOWAIT flag to avoid blocking ASTs. If any bit conflicts them lock is enqueued just with mandatory bits as usual. Therefore the more bits we will try the less successful we will be.<br/> The patch allows to add optional bits to IBITS lock separately from mandatory bits during lock enqueue and all non-conflicting bits will be granted. This becomes quite useful with upcoming features like Data-on-MDT, FLR, etc.</p> <p>Mike Pershin (mike.pershin@intel.com) uploaded a new patch: <a href="https://review.whamcloud.com/25820" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/25820</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-9184" title="early patches for Data-on-MDT support" class="issue-link" data-issue-key="LU-9184"><del>LU-9184</del></a> grants: move grant code to the target<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 8caf478c5969e06dc8bfccb7ba93c3a1c047a3f6</p> <p>The unified grant patch moves grants code (and statfs) from OFD to the target, so it can be used by any target now. This is needed by Data-on-MDT but is useful also to control space consumption on MDT for things like HSM, lfsck and others.</p> <p>Mike Pershin (mike.pershin@intel.com) uploaded a new patch: <a href="https://review.whamcloud.com/26467" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/26467</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-9184" title="early patches for Data-on-MDT support" class="issue-link" data-issue-key="LU-9184"><del>LU-9184</del></a> ldlm: add extended stats for LDLM<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 9d59c334f786cb09531c4cb97b6cb3e37702030f</p> <p>Oleg Drokin (oleg.drokin@intel.com) merged in patch <a href="https://review.whamcloud.com/25820/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/25820/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-9184" title="early patches for Data-on-MDT support" class="issue-link" data-issue-key="LU-9184"><del>LU-9184</del></a> grants: move grant code to the target<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: e9389613eb29297f7b5a6b6cd896bafc7a5551f8</p> <p>Mike Pershin (mike.pershin@intel.com) uploaded a new patch: <a href="https://review.whamcloud.com/26837" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/26837</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-9184" title="early patches for Data-on-MDT support" class="issue-link" data-issue-key="LU-9184"><del>LU-9184</del></a> lov: component layout entry can be not just RAID0<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 45bd514d0239ffa9600f14cf92a18b46c86ccb66</p> <p>The latest patch is to make component layout more flexible in terms of handling different component types, not just RAID0. It is also would be good to land early.</p> <p>Mike Pershin (mike.pershin@intel.com) uploaded a new patch: <a href="https://review.whamcloud.com/27807" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/27807</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-9184" title="early patches for Data-on-MDT support" class="issue-link" data-issue-key="LU-9184"><del>LU-9184</del></a> mdc: move layout data to the lr_lvb_data<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 3c16af7f7b3f569af52199e0136492ed6eb109b7</p> <p>Mike Pershin (mike.pershin@intel.com) uploaded a new patch: <a href="https://review.whamcloud.com/27806" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/27806</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-9184" title="early patches for Data-on-MDT support" class="issue-link" data-issue-key="LU-9184"><del>LU-9184</del></a> ldlm: selective IBITS lock trying<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: cc4b62cd1933f5ccf4b2d90148b0a6f11eba1c32</p> <p>Mike Pershin (mike.pershin@intel.com) uploaded a new patch: <a href="https://review.whamcloud.com/28023" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/28023</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-9184" title="early patches for Data-on-MDT support" class="issue-link" data-issue-key="LU-9184"><del>LU-9184</del></a> mdc: move layout data to the lr_lvb_data<br/> Project: fs/lustre-release<br/> Branch: dom<br/> Current Patch Set: 1<br/> Commit: e62eb255fe69696ecbf1ebc651df79aadb1ccbe1</p> <p>Mike Pershin (mike.pershin@intel.com) uploaded a new patch: <a href="https://review.whamcloud.com/28022" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/28022</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-9184" title="early patches for Data-on-MDT support" class="issue-link" data-issue-key="LU-9184"><del>LU-9184</del></a> ldlm: selective IBITS lock trying<br/> Project: fs/lustre-release<br/> Branch: dom<br/> Current Patch Set: 1<br/> Commit: ad57e89900ecc0f08247e6b0541348f7e263862e</p> <p>Oleg Drokin (oleg.drokin@intel.com) merged in patch <a href="https://review.whamcloud.com/25262/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/25262/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-9184" title="early patches for Data-on-MDT support" class="issue-link" data-issue-key="LU-9184"><del>LU-9184</del></a> ldlm: selective IBITS lock trying<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: 8259b8c1122cf0e297921ca80437d575a7c04b7f</p> <p>Outdated</p> Related LU-10175 Development Rank 1|hzz5vz: Rank (Obsolete) 9223372036854775807