Github user mxm commented on a diff in the pull request:
https://github.com/apache/flink/pull/1342#discussion_r44390519
--- Diff: flink-yarn/src/main/java/org/apache/flink/yarn/Utils.java ---
@@ -135,7 +142,40 @@ public static void setTokensFor(ContainerLaunchContext
amContainer, Path[] paths
ByteBuffer securityTokens = ByteBuffer.wrap(dob.getData(), 0,
dob.getLength());
amContainer.setTokens(securityTokens);
}
-
+
+ /**
+ * Obtain Kerberos security token for HBase.
+ */
+ private static void obtainTokenForHBase(Credentials credentials,
Configuration conf) {
+ if (UserGroupInformation.isSecurityEnabled()) {
+ LOG.info("Attempting to obtain Kerberos security token
for HBase");
+ try {
+ HBaseConfiguration.addHbaseResources(conf);
+ if
(!"kerberos".equals(conf.get("hbase.security.authentication"))) {
+ LOG.info("HBase has not been configured
to use Kerberos.");
+ return;
+ }
+
+ LOG.info("Connecting to HBase");
+ Connection connection =
ConnectionFactory.createConnection(conf);
+
+ LOG.info("Obtaining Kerberos security token for
HBase");
+ Token<AuthenticationTokenIdentifier> token =
TokenUtil.obtainToken(connection);
+
+ if (token == null) {
+ LOG.error("No Kerberos security token
for HBase available");
+ return;
+ }
+
+ credentials.addToken(token.getService(), token);
+ LOG.info("Added HBase Kerberos security token
to credentials.");
+ } catch (IOException e) {
+ LOG.error("Caught exception while trying to
obtain HBase Kerberos security token.");
+ e.printStackTrace();
--- End diff --
You might want to re`throw` the Exception here or not catch it at all. This
ensures that it is probably forwarded to the client.
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