Github user squito commented on a diff in the pull request:
https://github.com/apache/spark/pull/8218#discussion_r37155796
--- Diff:
network/common/src/main/java/org/apache/spark/network/client/TransportClient.java
---
@@ -85,6 +86,24 @@ public SocketAddress getSocketAddress() {
}
/**
+ * Returns the ID used by the client to authenticate itself when
authentication is enabled.
+ *
+ * @return The client ID.
+ */
+ public String getClientId() {
+ return clientId;
+ }
+
+ /**
+ * Sets the authenticated client ID. This is meant to be used by the
authentication layer;
+ * trying to set a different client ID after it's been set will result
in an exception.
+ */
+ public void setClientId(String id) {
+ Preconditions.checkState(clientId == null, "Client ID has already been
set.");
--- End diff --
If I understand correctly, this will never get called when you aren't using
authentication, right? Maybe drop in a comment here explaining that, and on
`getClientId` that it will return `null` without authentication?
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