nandakumar131 commented on a change in pull request #313: HDDS-2242. Avoid
unnecessary rpc needed to discover the pipeline leader.
URL: https://github.com/apache/hadoop-ozone/pull/313#discussion_r355463573
##########
File path:
hadoop-hdds/common/src/main/java/org/apache/hadoop/hdds/scm/pipeline/Pipeline.java
##########
@@ -132,6 +133,25 @@ void setLeaderId(UUID leaderId) {
return new ArrayList<>(nodeStatus.keySet());
}
+ /**
+ * Returns the leader if found else defaults to closest node.
+ *
+ * @return {@link DatanodeDetails}
+ */
+ public DatanodeDetails getLeaderNodeIfPresent() throws IOException {
Review comment:
We can rename this to `getLeader`, the javadoc already describes the
behavior if the leader is not set. Ideally, the leader should be set in a
pipeline.
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