yanghua commented on a change in pull request #6689: [FLINK-8247] [Mesos]
Support case where hadoop is not on classpath
URL: https://github.com/apache/flink/pull/6689#discussion_r217696839
##########
File path:
flink-runtime/src/main/java/org/apache/flink/runtime/clusterframework/overlays/HadoopUserOverlay.java
##########
@@ -57,24 +57,58 @@ public void configure(ContainerSpecification container)
throws IOException {
}
public static Builder newBuilder() {
- return new Builder();
+ // First check if we have Hadoop in the ClassPath. If not, we
simply don't do anything.
+ try {
+ Class.forName(
+
"org.apache.hadoop.security.UserGroupInformation",
+ false,
+ HadoopUserOverlay.class.getClassLoader());
+ } catch (ClassNotFoundException e) {
+ LOG.info("Cannot create Hadoop User Overlay because
Hadoop cannot be found in the Classpath.");
Review comment:
`because Hadoop cannot` -> `because Hadoop specific dependencies cannot`
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