milleruntime opened a new issue #2577: URL: https://github.com/apache/accumulo/issues/2577
**Is your feature request related to a problem? Please describe.** If the metadata table takes a long time to scan, the overall performance of Accumulo will suffer dearly. **Describe the solution you'd like** Warn the user if scans of the metadata table are taking "too long". With the creation of the Ample (Accumulo metadata persistence layer) in 2.1, this should be easier then in past versions. **Describe alternatives you've considered** Take more drastic steps to help a cluster, like shutting things down, automatically merge tablets, etc. We could also warn if writes to the metadata are taking too long. **Additional context** I find that users can be blind to how scans of the metadata are performing. Does a cluster have too many tables? Does a cluster have too many tablets hosted per tserver? These are typical questions when the performance of a cluster is suffering. Warning the user of slow metadata scans will hopefully help to alleviate this behavior. -- 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]
