HBase
You can review the list of reported issues and their fixes for HBase in 7.3.1.200.
- CDPD-77399: HBase fails to register the servlet metrics and throws ClassNotFoundException: org.apache.hadoop.metrics.MetricsServlet
- This issue is fixed now. HBase does not warn about the Hadoop 2-based
metric servlet class on a Hadoop 3 deployment.
Apache Jira:: HBASE-28315