Alejandro Abdelnur created HDFS-4457: ----------------------------------------
Summary: WebHDFS obtains/sets delegation token service hostname using wrong config leading to issues when NN is configured with 0.0.0.0 RPC IP Key: HDFS-4457 URL: https://issues.apache.org/jira/browse/HDFS-4457 Project: Hadoop HDFS Issue Type: Bug Components: webhdfs Affects Versions: 2.0.2-alpha, 1.1.1 Reporter: Alejandro Abdelnur Priority: Critical If the NameNode RPC address is configured with an wildcard IP 0.0.0.0, then delegationotkens are configured with 0.0.0.0 as service and this breaks clients trying to use those tokens. Looking at NamenodeWebHdfsMethods#generateDelegationToken() the problem is SecurityUtil.setTokenService(t, namenode.getHttpAddress());, tracing back what is being used to resolve getHttpAddress() the NameNodeHttpServer is resolving the httpAddress doing a *httpAddress = new InetSocketAddress(bindAddress.getAddress(), httpServer.getPort()); *, and if using "0.0.0.0" in the configuration, you get 0.0.0.0 from bindAddress.getAddress(). Normally (non webhdfs) this is not an issue because it is the responsibility of the client, but in the case of WebHDFS, WebHDFS does it before returning the string version of the token (it must be this way because the client may not be a java client at all and cannot manipulate the DelegationToken as such). The solution (thanks to Eric Sammer for helping figure this out) is for WebHDFS to use the exacty hostname that came in the HTTP request as the service to set in the delegation tokens. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira