You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@kafka.apache.org by "ASF GitHub Bot (JIRA)" <ji...@apache.org> on 2016/07/01 02:09:10 UTC
[jira] [Commented] (KAFKA-3794) Add Stream / Table prefix in print
functions
[ https://issues.apache.org/jira/browse/KAFKA-3794?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15358238#comment-15358238 ]
ASF GitHub Bot commented on KAFKA-3794:
---------------------------------------
GitHub user bbejeck opened a pull request:
https://github.com/apache/kafka/pull/1577
KAFKA-3794: added stream / table names as prefix to functions that pr…
…int to the console.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/bbejeck/kafka KAFKA-3794-add-prefix-to-print-functions
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/kafka/pull/1577.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 #1577
----
commit f5334e134b0d6a743f24dcfd7d1d9cb6d92964c9
Author: bbejeck <bb...@gmail.com>
Date: 2016-07-01T02:08:05Z
KAFKA-3794: added stream / table names as prefix to functions that print to the console.
----
> Add Stream / Table prefix in print functions
> --------------------------------------------
>
> Key: KAFKA-3794
> URL: https://issues.apache.org/jira/browse/KAFKA-3794
> Project: Kafka
> Issue Type: Bug
> Components: streams
> Reporter: Guozhang Wang
> Assignee: Bill Bejeck
> Labels: newbie, user-experience
>
> Currently the KTable/KStream.print() operator will print the key-value pair as it was forwarded to this operator. However, if there are multiple operators in the topologies with the same {{PrintStream}} (e.g. stdout), their printed key-value pairs will be interleaving on that stream channel.
> Hence it is better to add a prefix for different KStream/KTable.print operators. One proposal:
> 1) For KTable, it inherits a table name when created, and we can use that name as the prefix as {{[table-name]: key, value}}.
> 2) For KStream, we can overload the function with an additional "name" parameter that we use as the prefix; if it is not specified, then we can use the parent processor node name, which has the pattern like {{KSTREAM-JOIN-suffix_index}}.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)