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https://issues.apache.org/jira/browse/KAFKA-1654?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14222431#comment-14222431
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Jarek Jarcec Cecho commented on KAFKA-1654:
-------------------------------------------
Thanks for the good feedback [~nehanarkhede]!
{quote}
1. The script for starting kafka (bin/kafka-server-start.sh) prints a different
help message compared to the one in kafka.Kafka. Since that is the script used
by everyone to start Kafka, it is worth fixing it there.
{quote}
Good point, I've missed that and fixed in latest patch. It's a bit unfortunate
that we're parsing the arguments in two places, perhaps that is something that
we can improve in subsequent JIRA.
{quote}
2. The properties have to be specified before the server.properties file. I
found it more natural to specify it after the server.properties in the
following manner.
bin/kafka-server-start.sh config/server.properties --override property=value
{quote}
I personally don't have any preference on this matter, so I've incorporated it
into my latest patch :)
> Provide a way to override server configuration from command line
> ----------------------------------------------------------------
>
> Key: KAFKA-1654
> URL: https://issues.apache.org/jira/browse/KAFKA-1654
> Project: Kafka
> Issue Type: Improvement
> Components: core
> Affects Versions: 0.8.1.1
> Reporter: Jarek Jarcec Cecho
> Assignee: Jarek Jarcec Cecho
> Fix For: 0.8.3
>
> Attachments: KAFKA-1654.patch, KAFKA-1654.patch, KAFKA-1654.patch,
> KAFKA-1654.patch
>
>
> I've been recently playing with Kafka and I found the current way of server
> configuration quite inflexible. All the configuration options have to be
> inside a properties file and there is no way how they can be overridden for
> execution. In order to temporarily change one property I had to copy the
> config file and change the property there. Hence, I'm wondering if people
> would be open to provide a way how to specify and override the configs from
> the command line when starting Kafka?
> Something like:
> {code}
> ./bin/kafka-server-start.sh -Dmy.cool.property=X kafka.properties
> {code}
> or
> {code}
> ./bin/kafka-server-start.sh --set my.cool.property=X kafka.properties
> {code}
> I'm more than happy to take a stab at it, but I would like to see if there is
> an interest for such capability?
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