Expand Monitoring section

[mshustov]

Currently, the https://clickhouse.com/docs/integrations/kafka/clickhouse-kafka-connect-sink#monitoring section provides a brief description of the current capabilities. While we don't want to duplicate the JMX docs in Kafka Connect Sink documentation, we could include a brief overview of the metrics exported

Scope:

• review docs for ClickHouse-specific metrics
• add overview of Kafka producer/consumer Metrics
  • topic-level metrics (totals, averages, compression rates)
  • partition-level metrics (lag, lead, replica info)
  • node-level connection metrics
• add overview of Kafka Connect framework metrics
  • task status values
  • task error metrics (total errors, retries, skipped records)

[amolsr]

I would like to work on this. can you assign me the task.?