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-15621 Lustre <p>Batch processing framework is able to pack many individual requests into one large RPC. This batch RPC is then transferred to the server via bulk I/O and executed using a single server round-trip. Batch processing therefore reduces the number of simultaneous requests processed by the server.</p> <p>After batched RPC framework introduced, it can boost the metadata performance dramatically. However, it also increases the complexity of the recovery, such as how to reconstruct the reply in case of the RPC resend if the reply was lost.</p> <p>The goal of this project is to adopt the existed recovery mechanism with batched RPC framework which will be used by Writeback Caching (WBC) and batched stat ahead.</p> LU-15621

WBC: Recovery mechanism for batched RPC

Technical task LU-10938 Minor Open Unresolved WC Triage Qian Yingjin Sat, 5 Mar 2022 03:29:47 +0000 Wed, 15 Feb 2023 11:55:19 +0000 0 2 <p>"Yingjin Qian &lt;qian@ddn.com&gt;" uploaded a new patch: <a href="https://review.whamcloud.com/46799" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/46799</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-15621" title="WBC: Recovery mechanism for batched RPC" class="issue-link" data-issue-key="LU-15621">LU-15621</a> wbc: reply reconstruction for the batched RPC<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: e259a0069e935a2cc5a82d2ef02cc2a8a01e5c3a</p> <p>"Yingjin Qian &lt;qian@ddn.com&gt;" uploaded a new patch: <a href="https://review.whamcloud.com/46817" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/46817</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-15621" title="WBC: Recovery mechanism for batched RPC" class="issue-link" data-issue-key="LU-15621">LU-15621</a> wbc: add update flag for the batched RPC<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 233a656a15f6d465b3925e55009201472ea03859</p> <p>"Yingjin Qian &lt;qian@ddn.com&gt;" uploaded a new patch: <a href="https://review.whamcloud.com/46886" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/46886</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-15621" title="WBC: Recovery mechanism for batched RPC" class="issue-link" data-issue-key="LU-15621">LU-15621</a> wbc: free buffer when batched RPC is committed<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 35eae0b00f45257c578a6fb00daad9200acc1fbf</p> Related Development Rank 1|i02k1z: Rank (Obsolete) 9223372036854775807