[MetadataServer] minor changes #2650
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This was referenced Feb 6, 2025
This was referenced Feb 6, 2025
tillrohrmann
approved these changes
Feb 6, 2025
Previously, setting target nodeset size with restatectl would tell you that "No change" ``` // intentionally empty ```
The PR also uses it in CheckSeal. This utility `DecoratedNodeSet` can be used when you want to add a nugget of information next to every node. It prints the nodeset sorted as well. ``` // intentionally empty ```
Key changes: - Using JoinSet instead of unordered futures to perform store tasks to avoid some of its tricky lockup scenarios - Store tasks are free to use whatever connection is available, this over-indexes over the current design that serializes all writes in a one-at-a-time fashion, but removes a lock, and simplifies the logic. - Extra in-flight stores are aborted after an append is complete to avoid overloading - Timeout store tasks only on the basis of their network operation and not on the time they're waiting for the tail to move - Cache nodeset checker across waves - Better logging on failures, it reports the nodeset status with the number of attempts per node - Adds a new metric to latency of appends Performance testing shows no regression and reliability testing appears to show no regression even in tricky failure scenarios. ``` // intentionally empty ```
Those find_tail operations are only used by the partition_processor on startup and we don't want it to fail unnecessarily, this gives it a good chance to succeed unless the underlying error is not retryable. ``` // intentionally empty ```
- Always flush metadata-server CFs on shutdown - INFO logging for leadership changes events ``` // intentionally left empty ```
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DecoratedNodeSetUtility to display decorated nodesets #2646