Andrzej Bialecki created SOLR-18062:
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Summary: CrossDC - support arbitrary Kafka properties
Key: SOLR-18062
URL: https://issues.apache.org/jira/browse/SOLR-18062
Project: Solr
Issue Type: Improvement
Components: module - crossDC
Affects Versions: 10.0
Reporter: Andrzej Bialecki
Assignee: Andrzej Bialecki
Currently a strictly controlled subset of Kafka properties is supported in
CrossDC Producer and Consumer. However, this limits the possibility of adding
other Kafka properties related to performance tuning, connectivity etc. There
are literally hundreds of these properties, some varying between Kafka versions.
This ticket will add a generic mechanism to pass-through arbitrary Kafka
properties. The proposed mechanism is the following:
* environment variables starting with {{KAFKA_}} will be stripped of the
prefix, lowercased and replace underscores with dots.
* system properties starting with {{kafka.}} will be stripped of the prefix.
Properties collected this way from env vars and sys props will be added to
{{KafkaCrossDcConf}} and returned in
{{KafkaCrossDcConf.getAdditionalProperties()}} which is used during
configuration of Kafka consumers and producers.
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