cigarl opened a new pull request #5295: URL: https://github.com/apache/iotdb/pull/5295
In scenarios with too many timeseries, the memory footprint of metadata would become a bottleneck. Therefore, we propose a scheme to store metadata based on Rocksdb. Storing metadata in Rocksdb can significantly reduce memory usage. And we can use appropriate cache size to improve query hit ratio.this reduces the number of _full gc_ and improve service availability. The `meta_data_manager` configuration item in `iotdb-engine.properties` allows you to select the memory scheme you want to use. For example, you can configure it as MEMORY_MANAGER or do no nothing to use the old memory scheme.If you want to use rocksdb to store metadata, you need to change the configuration item to ROCKSDB_MANAGER such as `meta_data_manager=ROCKSDB_MANAGER`. It's a work in progress, and we'd love to see people testing it and working on it together. : ) -- 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]
