choubenson opened a new pull request, #7312: URL: https://github.com/apache/iotdb/pull/7312
**Description** In massive timeseries scenarios, each device has 20 timeseries, and each file has tens of thousands of devices, that is, millions of timeseries. Read throughput in cross compaction is 100~1000 times greater than write throughput. **Solution** When compacting, it is necessary to obtain devices and timeseries from all source files, as well as the metadata of each timeseries. To avoid traversing the Zesong tree multiple times, we record the intermediate nodes of the Zesong tree. Please refer to [IOTDB-4364](https://issues.apache.org/jira/browse/IOTDB-4364) for the experimental results. -- 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]
