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https://issues.apache.org/jira/browse/SOLR-18062?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18057355#comment-18057355
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ASF subversion and git services commented on SOLR-18062:
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Commit 639a3884983447f80ed3c0295edcd5348f372260 in solr's branch
refs/heads/branch_10x from Andrzej Bialecki
[ https://gitbox.apache.org/repos/asf?p=solr.git;h=639a3884983 ]
SOLR-18062: CrossDC - support arbitrary Kafka properties. (cherry-pick from
#4087)
> 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
> Priority: Major
> Labels: pull-request-available
> Time Spent: 40m
> Remaining Estimate: 0h
>
> 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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