Hi, maybe it does not load the webhcat configuration files webhcat-default.xml and webhcat-site.xml. I remember I had a similar issue. See section https://cwiki.apache.org/confluence/display/Hive/WebHCat+Configure#WebHCatConfigure-ConfigurationVariables
Please check your webhcat.log. It is created if you run "webhcat_server.sh start". The very first line should be "Attempting to load config file" and then "loaded config file". You see there where it is looking for the configuration files (In TEMPLETON_HOME, which is set automatically by webhcat_server.sh to the hcatalog dir). So if the config files are not found, one option is to copy webhcat-default.xml to TEMPLETON_HOME and create webhcat-site.xml there. Or make sure that the files are in the CLASSPATH. Maybe there is another recommended way I am not aware of. You definitely need to overwrite several options in the webhcat-site.xml since the defaults won't work (some of the paths are referring to 0.11). Hope this helps, André 2014-08-15 10:34 GMT+02:00 no...@sina.cn <no...@sina.cn>: > hi everyone: > > I followed the wiki > https://cwiki.apache.org/confluence/display/Hive/WebHCat+InstallWebHCat > <https://cwiki.apache.org/confluence/display/Hive/WebHCat+InstallWebHCat,> to > run webhcat server, it's started. > > I use curl : > curl 'http://localhost:8080/templeton/v1/status' > > return is: > {"status":"ok", "version":"v1"} > > but, when i use this: > curl 'http://localhost:8080/templeton/v1/ddl/database?user.name=user' > > return is : > {"error":null} > > I find some Exceptions in log: > > org.apache.hive.hcatalog.templeton.CatchallExceptionMapper | > java.lang.NullPointerException > at > org.apache.hive.hcatalog.templeton.HcatDelegator.makeArgs(HcatDelegator.java:86) > at > org.apache.hive.hcatalog.templeton.HcatDelegator.run(HcatDelegator.java:62) > .... > > > any idea about what I can do? > > ------------------------------ > no...@sina.cn >
