[SAMZA-2478] Add new metrics to track key and value size of records written to RocksDb

• Type: New Feature
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.5
• Assignee: Unassigned
• Reporter: XIE FAN
• Created: 05/Mar/20 20:31
• Updated: 27/May/20 03:49
• Resolved: 27/May/20 03:49

Description

Currently, Samza lack of metrics  to monitor the size of keys and values written to the RocksDb. We can improve this by adding some new metrics in SerializedKeyValueStoreMetrics class.