Github user rmetzger commented on a diff in the pull request:
https://github.com/apache/flink/pull/1409#discussion_r45973129
--- Diff:
flink-core/src/main/java/org/apache/flink/configuration/ConfigConstants.java ---
@@ -243,6 +243,20 @@
*/
public static final String YARN_PROPERTIES_FILE_LOCATION =
"yarn.properties-file.location";
+ /**
+ * Prefix for passing custom environment variables to Flink's
ApplicationMaster (JobManager).
+ * For example for passing LD_LIBRARY_PATH as an env variable to the
AppMaster, set:
+ * yarn.application-master.env.LD_LIBRARY_PATH: "/usr/lib/native"
+ * in the flink-conf.yaml.
+ */
+ public static final String YARN_APPLICATION_MASTER_ENV_PREFIX =
"yarn.application-master.env.";
+
+ /**
+ * Similar to the {@see YARN_APPLICATION_MASTER_ENV_PREFIX}, this
configuration prefix allows
+ * setting custom environment variables.
+ */
+ public static final String YARN_TASK_MANAGER_ENV_PREFIX =
"yarn.taskmanager.env.";
--- End diff --
I think `YARN_RESOURCE_MANAGER_ENV_PREFIX` is just wrong bc its a service
of YARN, not of Flink
(http://hortonworks.com/blog/apache-hadoop-yarn-resourcemanager/).
Whether to use AM or JM is a good question. In the YARN context, AM and JM
are basically the same. I think AM is a bit more consistent.
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