fapifta commented on a change in pull request #3579:
URL: https://github.com/apache/hadoop/pull/3579#discussion_r734626158
##########
File path:
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/Client.java
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@@ -909,6 +898,35 @@ public AuthMethod run()
connectingThread.set(null);
}
}
+
+ private void setFallBackToSimpleAuth(AtomicBoolean fallbackToSimpleAuth)
+ throws IOException {
+ if (fallbackToSimpleAuth == null) {
+ LOG.trace("Connection {} skips setting fallbackToSimpleAuth as it is
null.", remoteId);
+ return;
+ }
+ if (authMethod == null) {
+ // setupIOStreams() will set up authMethod first, then call this
method again.
+ return;
+ }
+ LOG.trace(
+ "Setting fallbackToSimpleAuth. AuthMethod is {}. Fallback allowed by
configuration: {}. "
+ + "Security is {}.",
+ authMethod, fallbackAllowed,
+ UserGroupInformation.isSecurityEnabled() ? "enabled" : "disabled");
+ if (authMethod != AuthMethod.SIMPLE) {
+ LOG.trace("Disabling fallbackToSimpleAuth target does not require
SIMPLE authentication.");
+ fallbackToSimpleAuth.set(false);
+ } else if (UserGroupInformation.isSecurityEnabled()) {
+ if (!fallbackAllowed) {
+ throw new IOException("Server asks us to fall back to SIMPLE auth,
but this client is "
Review comment:
Yes, you are right, I am unsure how that has been changed... but I have
added a commit to fix it, thank you for the review and spotting it!
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