rmdmattingly opened a new pull request, #5534: URL: https://github.com/apache/hbase/pull/5534
https://issues.apache.org/jira/browse/HBASE-28215 The mass reopening of regions caused by a table descriptor modification can be quite disruptive. For latency/error sensitive workloads, like our user facing traffic, we need to be very careful about when we modify table descriptors, and it can be virtually impossible to do it painlessly for busy tables. This PR introduces two new configurations: 1. hbase.table.regions.reopen.batch.size * This is an integer which represents the number of reopen procedures to create in a single batch. This defaults to Integer.MAX_VALUE, so it should be a no-op for any table with fewer than billions of regions 3. hbase.table.regions.reopen.batch.backoff.ms * This is an integer which represents the millis to be waited between reopen batches. Hyperbolically, you could configure your batch size to 1 and your backoff MS to 60_000 — this would result in reopening no more than 1 region per 60s as a result of a single reopening procedure. @bbeaudreault @hgromer @eab148 @bozzkar -- 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]
