Move Nexus notification to standalone task #1584
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jmpesp
approved these changes
Dec 11, 2024
| repair_id: reconcile_id, | ||
| // surely we won't have usize::MAX extents | ||
| current_item: current_task as i64, | ||
| // i am serious, and don't call me shirley |
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| repairs.push(DownstairsUnderRepair { |
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It's a bit of a shame to change this struct into a tuple, but I wouldn't block the PR for it
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Agreed, but it is intentional; I wanted to remove Nexus-flavored types from every module except notify.rs. We could add a new intermediate-type, but probably not worth it...
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Previously, we would spawn a new
tokio::taskin theDownstairsto do an async notification to Nexus, iff thenotify-nexusfeature was enabled. This is awkward for a few reasons:mod downstairsnotify-nexusis enabled, which means that it's easy to have something that builds locally but fails in CIThis PR moves Nexus notifications to a separate
notifymodule, which runs a single task to do these notifications in one place. It communicates to the rest of Crucible through a queue; if the queue fills up, we log and discard the notification request (since this is best-effort).All of this code is always compiled; we check the feature (using
cfg!(feature = "notify-nexus")to determine whether it's actually enabled. This module is responsible for translating into Nexus types, so they don't leak into the rest of the codebase.