jayakasadev opened a new issue, #67458: URL: https://github.com/apache/doris/issues/67458
### Search before asking - [x] I had searched in the [issues](https://github.com/apache/doris/issues?q=is%3Aissue) and found no similar issues. ### Description Writes to a tablet are rejected once its version count passes `max_tablet_version_num`, and it fails with `TOO_MANY_VERSION` (E235). The check reads a counter called [_approximate_num_rowsets](https://github.com/apache/doris/blob/master/be/src/cloud/cloud_rowset_builder.cpp#L204). The only related metric, `tablet_version_num_distribution`, reads a different counter that updates less frequently and skips tablets that are currently being written to. This hides potential issues until there is a failure. There's no Prometheus metric for `tablet_version_num_distribution`. The only way to read it is via admin HTTP GET to /api/hotspot/tablet?metrics=num_rowsets. ### Solution 1. Add a metric fed from `_approximate_num_rowsets` on ]https://github.com/apache/doris/blob/master/be/src/cloud/cloud_rowset_builder.cpp#L204 using the same pattern as the existing histogram in doris_metrics.{h,cpp}. 2. Report it for all tablets, including ones under active load ### Are you willing to submit PR? - [x] Yes I am willing to submit a PR! ### Code of Conduct - [x] I agree to follow this project's [Code of Conduct](https://www.apache.org/foundation/policies/conduct) -- 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] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
