Github user nielsbasjes commented on a diff in the pull request: https://github.com/apache/flink/pull/1342#discussion_r44391146 --- 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 -- Yes I considered that. I figured that continuing would be 'better'. But simply rethrowing would make more sense. I'll update the patch.
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