ajkh88 opened a new pull request, #7481: URL: https://github.com/apache/hbase/pull/7481
When table descriptors are modified (e.g., changing compression settings, TTL, or column family configurations), region servers need to reopen regions to pick up these changes. However, there's currently no reliable way to detect which regions are running with stale table descriptors versus the current configuration. This makes it difficult to verify that descriptor changes have propagated correctly across all regions, increasing the risk of configuration drift and making deployment automation more challenging. This PR adds a tableDescriptorHash field to the per-region JMX metrics exposed by region servers. The hash is a SHA-256 digest of the serialized `TableDescriptor` protobuf, computed once when the region is opened and exposed through the `MetricsRegionWrapper` interface. Regions opened with identical table descriptors will produce identical hashes, while any configuration change (compression, TTL, block size, etc.) will produce a different hash. This enables monitoring systems and deployment automation to quickly identify regions that need reopening after table descriptor changes, without parsing and comparing complex nested configuration objects. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
