platinumhamburg opened a new issue, #2913: URL: https://github.com/apache/fluss/issues/2913
### Search before asking - [x] I searched in the [issues](https://github.com/apache/fluss/issues) and found nothing similar. ### Motivation When a tablet server hosts thousands of KV buckets, all RocksDB instances are opened eagerly at startup, consuming significant memory. In practice, many buckets may receive no traffic for hours or even days — especially in multi-tenant or high-partition-count deployments. These idle RocksDB instances waste memory without serving any requests. ### Solution Defer RocksDB open to first access. Each KV tablet starts as a lightweight sentinel (no RocksDB). When the first read/write arrives, RocksDB is opened on demand. After a configurable idle timeout, the tablet is automatically released back to the lightweight state, preserving local SST files for fast reopen. ### Anything else? _No response_ ### Willingness to contribute - [ ] I'm willing to submit a PR! -- 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]
