Github user sarutak commented on a diff in the pull request:
https://github.com/apache/spark/pull/13738#discussion_r67813110
--- Diff: core/src/main/scala/org/apache/spark/deploy/SparkHadoopUtil.scala
---
@@ -421,6 +421,13 @@ object SparkHadoopUtil {
val SPARK_YARN_CREDS_COUNTER_DELIM = "-"
+ // Just load HdfsConfiguration into the class loader to add
+ // hdfs-site.xml as a default configuration file otherwise
+ // some HDFS related configurations doesn't ship to Executors and
+ // it can cause UnknownHostException when NameNode HA is enabled.
+ // See SPARK-11227 for more details.
+ Utils.classForName("org.apache.hadoop.hdfs.HdfsConfiguration")
--- End diff --
As you mentioned, Hadoop 2.2 have `HdfsConfiguration` but are there any way
to load `HdfsConfiguration` explicitly without reflection?
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at [email protected] or file a JIRA ticket
with INFRA.
---
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
