Github user mxm commented on a diff in the pull request: https://github.com/apache/flink/pull/2275#discussion_r79155885 --- Diff: flink-runtime/src/main/java/org/apache/flink/runtime/security/SecurityContext.java --- @@ -158,22 +157,37 @@ public static void install(SecurityConfiguration config) throws Exception { } /* - * This is a temporary fix to support both Kafka and ZK client libraries - * that are expecting the system variable to determine secure cluster + * This method configures some of the system property that are require for ZK and Kafka SASL authentication + * See: https://github.com/apache/kafka/blob/0.9.0/clients/src/main/java/org/apache/kafka/common/security/kerberos/Login.java#L289 + * See: https://github.com/sgroschupf/zkclient/blob/master/src/main/java/org/I0Itec/zkclient/ZkClient.java#L900 + * In this method, setting java.security.auth.login.config configuration is temporary hack only to support ZK and + * Kafka current code behavior */ - private static void populateJaasConfigSystemProperty(Configuration configuration) { + private static void populateSystemSecurityProperties(Configuration configuration) { - //hack since Kafka Login Handler explicitly looks for the property or else it throws an exception - //https://github.com/apache/kafka/blob/0.9.0/clients/src/main/java/org/apache/kafka/common/security/kerberos/Login.java#L289 - if(null == configuration) { - System.setProperty("java.security.auth.login.config", ""); + //required to be empty for Kafka but we will override the property + //with pseudo JAAS configuration file if SASL auth is enabled for ZK + System.setProperty("java.security.auth.login.config", ""); + + if(configuration == null) { + return; + } + + boolean disableSaslClient = configuration.getBoolean(ConfigConstants.ZOOKEEPER_SASL_DISABLE, + ConfigConstants.DEFAULT_ZOOKEEPER_SASL_DISABLE); + if(disableSaslClient) { + LOG.info("SASL client auth for ZK will be disabled"); + //SASL auth is disabled by default but will be enabled if specified in configuration + System.setProperty("zookeeper.sasl.client","false"); --- End diff -- This is to disable SASL with Zookeeper if a Jaas configuration is used but Zookeeper is not configured to use it?
--- If your project is set up for it, you can reply to this email and have your reply appear on GitHub as well. If your project does not have this feature enabled and wishes so, or if the feature is enabled but not working, please contact infrastructure at infrastruct...@apache.org or file a JIRA ticket with INFRA. ---