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https://issues.apache.org/jira/browse/FLINK-6222?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16553015#comment-16553015
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ASF GitHub Bot commented on FLINK-6222:
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Github user dawidwys commented on the issue:
https://github.com/apache/flink/pull/6388
I added a small section. I was thorn a little in the first place if we
should make it highly visible in docs as it might be wrongly understood those
variables will be distributed to the cluster as well, which is not true. What
do you think?
> YARN: setting environment variables in an easier fashion
> --------------------------------------------------------
>
> Key: FLINK-6222
> URL: https://issues.apache.org/jira/browse/FLINK-6222
> Project: Flink
> Issue Type: Improvement
> Components: Startup Shell Scripts
> Affects Versions: 1.2.0
> Environment: YARN, EMR
> Reporter: Craig Foster
> Assignee: Dawid Wysakowicz
> Priority: Major
> Labels: pull-request-available
> Attachments: patch0-add-yarn-hadoop-conf.diff
>
>
> Right now we require end-users to set YARN_CONF_DIR or HADOOP_CONF_DIR and
> sometimes FLINK_CONF_DIR.
> For example, in [1], it is stated:
> “Please note that the Client requires the YARN_CONF_DIR or HADOOP_CONF_DIR
> environment variable to be set to read the YARN and HDFS configuration.”
> In BigTop, we set this with /etc/flink/default and then a wrapper is created
> to source that. However, this is slightly cumbersome and we don't have a
> central place within the Flink project itself to source environment
> variables. config.sh could do this but it doesn't have information about
> FLINK_CONF_DIR. For YARN and Hadoop variables, I already have a solution that
> would add "env.yarn.confdir" and "env.hadoop.confdir" variables to the
> flink-conf.yaml file and then we just symlink /etc/lib/flink/conf/ and
> /etc/flink/conf.
> But we could also add a flink-env.sh file to set these variables and decouple
> them from config.sh entirely.
> I'd like to know the opinion/preference of others and what would be more
> amenable.
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