CA-394109: Reduce number of alerts #5696
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lindig
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Jun 25, 2024
| (fun h -> not (List.mem h quorum_hosts)) | ||
| all_cluster_hosts | ||
| let dead_hosts = | ||
| List.filter (fun h -> not (List.mem h live_hosts)) all_cluster_hosts |
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Should we use sets here? This is O(n^2).
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the maximum number of hosts we support is 16, so maximum complexity is 256, should be fine, what do you think?
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Checking format failed. If you use VSCode, you can configure setting.json to auto-format when saving the code like this: |
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psafont
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going to run a quick xrt test to make sure these changes are good, since it has been in the review fow a while |
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Signed-off-by: Vincent Liu <[email protected]>
Use the Atomic module to track whether a watcher has been created. Signed-off-by: Vincent Liu <[email protected]>
Signed-off-by: Vincent Liu <[email protected]>
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Added a feature flag, and tests look ok, merge this one now. |
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This allows one to force sync the state of xapi db with the cluster stack, useful for cluster API methods change the state of the cluster. Signed-off-by: Vincent Liu <[email protected]>
Previously there were two ways an alert for a cluster host join/leave can be raised: 1. through the cluster change watcher; 2. through the api call. These two can generate duplicate alerts as an API call can cause the cluster change watcher to notice the change as well. The idea of the fix here is still to let API and watcher raise alerts separately, but now add synchronous API calls to allow API call (cluster-host-join, etc) to call the cluster change update code at the right time so that the cluster change watcher won't see the change again, hence not generating duplicate alerts. Signed-off-by: Vincent Liu <[email protected]>
Signed-off-by: Vincent Liu <[email protected]>
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relatively large change, best reviewed by commit