Hi, Recently migrated to hadoop-0.20.0 and I am facing https://issues.apache.org/jira/browse/HADOOP-5254
Failed to set setXIncludeAware(true) for parser org.apache.xerces.jaxp.documentbuilderfactoryi...@1e9e5c73:java.lang.UnsupportedOperationException: This parser does not support specification "null" version "null" java.lang.UnsupportedOperationException: This parser does not support specification "null" version "null" at javax..xml.parsers.DocumentBuilderFactory.setXIncludeAware(DocumentBuilderFactory..java:590) at org.apache.hadoop.conf.Configuration.loadResource(Configuration.java:1053) So I tried including xml-apis-1.3.04.jar:xerces-2_9_1/xercesImpl.jar in hadoop classpath. But it started throwing another exception 09/06/23 05:53:02 FATAL conf.Configuration: error parsing conf file: javax.xml.parsers.ParserConfigurationException: Feature 'http://apache.org/xml/features/xinclude' is not recognized. Exception in thread "main" java.lang.RuntimeException: javax.xml.parsers.ParserConfigurationException: Feature 'http://apache.org/xml/features/xinclude' is not recognized. at org.apache.hadoop.conf.Configuration.loadResource(Configuration.java:1170) The former one was caught and WARN msg was logged by Configuration.java but later is uncaught and fails. What is the correct jar files / versions that should be included to avoid this? Thanks, Murali