Thanks Szehon. The --debug option works. Wantao
At 2014-12-23 03:23:23, "Szehon Ho" <sze...@cloudera.com> wrote: That's true, it might be broken now. I think now most people to debug their code will build assembly using -Phadoop-2,dist, and then go to packaging/target/... and run bin/hive from there. You can debug changes by setting bin/hive --debug, or alternatively by setting HADOOP_OPTS to include your own java debug flags. Hope that helps, Szehon On Mon, Dec 22, 2014 at 12:41 AM, vic0777 <vic0...@163.com> wrote: Hi Szehon, Thanks for your reply. I do not want to run bin/hive. I need to debug my changes to Hive code in Eclipse. For Hive0.11, I could build and import it into eclipse, then execute the main method in CliDriver. The hive prompt would appear in the Eclipse console, then I can type HQL statement into it. But for Hive0.14, the shims-common project always depends on hadoop-core-0.20.2.jar even with "-Phadoop-2" when building the code. My question is how I can generate an eclipse project with hadoop 2.5 in the classpath instead of hadoop0.20? Wantao 在 2014-12-22 15:18:30，"Szehon Ho" <sze...@cloudera.com> 写道： I dont know how to run it through eclipse, do you mean run the hiveCLI command line (/bin/hive)? If so, then you have to make sure HADOOP_HOME is set to include the hadoop 2.5.0 jars. There should not be 0.20.2 jars in the classpath. Thanks Szehon On Sun, Dec 21, 2014 at 2:12 AM, vic0777 <vic0...@163.com> wrote: Hi, I have imported Hive0.14 into Eclipse following instructions in "Hive Developer FAQ". My hadoop version is 2.5.0, so I specified "-Phadoop-2" in the commands. When I run it through CliDriver, Hive throws an exception "Exception in thread "main" java.lang.NoSuchMethodError: org.apache.hadoop.security.UserGroupInformation.getCurrentUser()Lorg/apache/hadoop/security/UserGroupInformation;". Since Hive loads class UserGroupInformation from hadoop-core-0.20.2.jar, it cannot find the method getCurrentUser. How can I get rid of this error? Any help is appreciated. Wantao
