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https://issues.apache.org/jira/browse/KAFKA-246?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13252909#comment-13252909
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Jay Kreps commented on KAFKA-246:
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Thanks for the patch!
I wonder if instead of adding a logging statement for each value which is a
little repetitive we could instead do the following:
Create a Props object that wraps Properties and has helpers like getInt,
getString, etc. Something like this:
https://github.com/voldemort/voldemort/blob/master/src/java/voldemort/utils/Props.java
Then add something internal to this helper that records whether a given
property is used or not (i.e. a property is used if the get method is called
for that key). This class could be used to log out all configuration in a
single place and also could log WARN messages for any properties that are not
used (since that is likely a typo).
> log configuration values used
> -----------------------------
>
> Key: KAFKA-246
> URL: https://issues.apache.org/jira/browse/KAFKA-246
> Project: Kafka
> Issue Type: Improvement
> Affects Versions: 0.8
> Reporter: Jun Rao
> Labels: newbie
> Attachments: KAFKA-246-broker-0.8.patch
>
>
> Currently, it's hard to figure out which configuration value is being used
> and whether a new configuration is being picked up. Logging all configuration
> values during startup time can address this issue. We should cover broker,
> producer and consumer.
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