Known Issues in Cloudera Runtime 7.2.18.500

Known Issues🔗

OPSAPS-69317: Kafka Connect Rolling Restart Check fails if SSL Client authentication is required

The rolling restart action does not work in Kafka Connect when the ssl.client.auth option is set to required. The health check fails with a timeout which blocks restarting the subsequent Kafka Connect instances.

You can set ssl.client.auth to requested instead of required and initiate a rolling restart again. Alternatively, you can perform the rolling restart manually by restarting the Kafka Connect instances one-by-one and checking periodically whether the service endpoint is available before starting the next one.

CDPD-77399: HBase fails to register the servlet metrics and throws ClassNotFoundException: org.apache.hadoop.metrics.MetricsServlet

The MetricsServlet class is a Hadoop 2-based metric servlet unavailable in Hadoop 3 deployments.

Workaround: Ignore this WARN log message during HBase Master and RegionServer startup.

Apache Issue: HBASE-28315

TSB 2025-797: Using Spark vectorized reads on Iceberg tables with Parquet files could result in malformed data

Due to an upstream Apache Iceberg issue, in specific situations, customers executing Spark vectorized reads on Iceberg tables with Parquet files may encounter malformed output and data incorrectness.

For the latest update on this issue see the corresponding Knowledge article: TSB 2025-797: Using Spark vectorized reads on Iceberg tables with Parquet files could result in malformed data