In HBASE-22120, I tried to use OpenTelemetry to replace HTrace in HBase, and it is basically done.
https://github.com/apache/hbase/pull/2901 I've filed HBASE-25526 for later improvement. The remaining works for HBASE-22120 are 1. Enabling trace on a real cluster, to test whether the whole flow works. 2. Test the performance impact. 3. Documentation. Once the above works are done and there are no big concerns, I will start a vote to merge HBASE-22120 back to master. Thanks.
