Timea Magyar created GEARPUMP-355: ------------------------------------- Summary: AppMasterResolver fails to run against a kerberized Hadoop cluster Key: GEARPUMP-355 URL: https://issues.apache.org/jira/browse/GEARPUMP-355 Project: Apache Gearpump Issue Type: Bug Components: security, yarn Affects Versions: 0.8.4 Reporter: Timea Magyar Fix For: 0.8.4
When trying to launch a Gearpump cluster in a kerberized Hadoop/Yarn environment, after the Application Master address has been resolved as a prerequisite, the YarnAppMaster (responsible for starting GearPump masters, workers, UI servers as Yarn containers) address (actor reference) must be obtained via Kerberos/Spnego. (Kerberos over http) The current implementation for this resides in the AppMasterResolver class and is using an apache http client (version 3.x) for establishing a connection to the Application Master and obtain the above YarnAppMaster actor reference. Since the apache http client does not support the negotiate authentication scheme in version 3.x (required for a connection over kerberos/spnego) this step will always fail in a kerberized Yarn/Hadoop cluster set-up. I tested this in a secured/kerberized CDH 5.7.5 environment. I would like to provide a patch for this by adapting the SPNEGO-enabled Hadoop web connection code from WebHDFS. -- This message was sent by Atlassian JIRA (v6.4.14#64029)