[
https://issues.apache.org/jira/browse/KAFKA-4108?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15534350#comment-15534350
]
ASF GitHub Bot commented on KAFKA-4108:
---------------------------------------
GitHub user vahidhashemian opened a pull request:
https://github.com/apache/kafka/pull/1937
KAFKA-4108: Improve DumpLogSegments offsets-decoder output format
This PR improves the output format of DumpLogSegments when the
`--offset-decoder` option is used for consuming `__consumer_offsets`,
especially when it comes to group metadata.
An example of the partial output with existing formatting:
```
key: metadata::console-consumer-40190 payload:
consumer:range:1:{consumer-1-20240b92-fbf4-44d5-bf8c-66b6d70c9948=[foo-0]}
```
An example of the same output with suggested formatting:
```
key: {"metadata":"console-consumer-40190"} payload:
{"protocolType":"consumer","groupMetadata.protocol":"range","groupMetadata.generationId":1,"assignment":"{consumer-1-20240b92-fbf4-44d5-bf8c-66b6d70c9948=[foo-0]}"}
```
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/vahidhashemian/kafka KAFKA-4108
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/kafka/pull/1937.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #1937
----
commit 55541e0df74c923c9917b0489212b269e25cf5aa
Author: Vahid Hashemian <vahidhashem...@us.ibm.com>
Date: 2016-09-29T22:53:55Z
KAFKA-4108: Improve DumpLogSegments offsets-decoder output format
This PR improves the output format of DumpLogSegments when the
`--offset-decoder` option is used for consuming `__consumer_offsets`,
especially when it comes to group metadata.
An example of the partial output with existing formatting:
```
key: metadata::console-consumer-40190 payload:
consumer:range:1:{consumer-1-20240b92-fbf4-44d5-bf8c-66b6d70c9948=[foo-0]}
```
An example of the same output with suggested formatting:
```
key: {"metadata":"console-consumer-40190"} payload:
{"protocolType":"consumer","groupMetadata.protocol":"range","groupMetadata.generationId":1,"assignment":"{consumer-1-20240b92-fbf4-44d5-bf8c-66b6d70c9948=[foo-0]}"}
```
----
> Improve DumpLogSegments offsets-decoder output format
> -----------------------------------------------------
>
> Key: KAFKA-4108
> URL: https://issues.apache.org/jira/browse/KAFKA-4108
> Project: Kafka
> Issue Type: Improvement
> Components: tools
> Reporter: Jason Gustafson
> Assignee: Vahid Hashemian
>
> When using the DumpLogSegments with the "--offsets-decoder" option (for
> consuming __consumer_offsets), the encoding of group metadata makes it a
> little difficult to identify individual fields. In particular, we use the
> following formatted string for group metadata:
> {code}
> ${protocolType}:${groupMetadata.protocol}:${groupMetadata.generationId}:${assignment}
> {code}
> Keys have a similar formatting. Most users are probably not going to know
> which field is which based only on the output, so it would be helpful to
> include field names. Maybe we could just output a JSON object?
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