Matthias J. Sax created KAFKA-7015:
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Summary: Enhance RecordCollectorImpl exceptions with more context
information
Key: KAFKA-7015
URL: https://issues.apache.org/jira/browse/KAFKA-7015
Project: Kafka
Issue Type: Improvement
Components: streams
Affects Versions: 1.1.0
Reporter: Matthias J. Sax
In KIP-182 we refactored all stores to by plain {{Bytes/byte[]}} stores and
only have concrete key/value types on outer layers/wrappers of the stores.
For this reason, the most inner {{RocksDBStore}} cannot provide useful error
messages anymore if a put/get/delete operation fails as it only handles plain
bytes.
In addition, the corresponding calls to record changelog records to record
collectors will also be sending byte arrays only, and hence when there is an
error happening, the record collector can only display the key but not the
value since it is all bytes:
{code:java}
[ERROR] org.apache.kafka.streams.processor.internals.RecordCollectorImpl -
task [2_2] Error sending record (key {"eventId":XXX,"version":123}
value [<byte array>] timestamp YYY) to topic TTT
due to ...
{code}
The store exceptions got fixed via KAFKA-6538.
This Jira is to track the fix for RecordCollectorImpl.
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