arvindshmicrosoft commented on a change in pull request #294: Fix YARN to work
with Java 11
URL: https://github.com/apache/fluo-muchos/pull/294#discussion_r337586612
##########
File path: ansible/roles/hadoop/tasks/main.yml
##########
@@ -34,6 +34,11 @@
with_items:
- workers
when: hadoop_major_version == '3'
+
+- name: "Copy javax.activation-api (Hadoop 3)"
+ synchronize: src={{ user_home }}/mvn_dep/ dest={{ hadoop_home
}}/share/hadoop/common/lib/
Review comment:
Will do, Keith. I am still testing this overall, and found some interesting
issues with Java 11 SDK JAVA_HOME etc.; allow me some time before I mark this
as a final PR. And to your question, synchronize uses rsync internally to copy
any file(s) from src folder on the proxy to the destination folder on the
worker host(s). For just 1 file, rsync may not be faster, but let's say in the
future we have more such dependencies, we found that the synchronize module is
faster than the copy module.
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