> 在 2016年12月12日，下午8:14，Mars Xu <[email protected]> 写道： > > Hello All, > > I notice that Kylin 1.6 has a feature that more robust approach for hive > schema changes. I have test it , just alter the column name of cube’s fact > table ,it throws an error like this: > > java.lang.NullPointerException > at > org.apache.kylin.cube.model.CubeDesc.getFactTableDesc(CubeDesc.java:342) > at > org.apache.kylin.source.hive.SchemaChecker$1.apply(SchemaChecker.java:110) > at > org.apache.kylin.source.hive.SchemaChecker$1.apply(SchemaChecker.java:101) > at com.google.common.collect.Iterators$7.computeNext(Iterators.java:702) > at > com.google.common.collect.AbstractIterator.tryToComputeNext(AbstractIterator.java:143) > at > com.google.common.collect.AbstractIterator.hasNext(AbstractIterator.java:138) > at > com.google.common.collect.ImmutableList.copyOf(ImmutableList.java:263) > at > com.google.common.collect.ImmutableList.copyOf(ImmutableList.java:223) > at > org.apache.kylin.source.hive.SchemaChecker.findCubeByTable(SchemaChecker.java:119) > at > org.apache.kylin.source.hive.SchemaChecker.allowReload(SchemaChecker.java:212) > at > org.apache.kylin.source.hive.HiveSourceTableLoader.reloadHiveTables(HiveSourceTableLoader.java:66) > at > org.apache.kylin.rest.service.CubeService.reloadHiveTable(CubeService.java:538) > at > org.apache.kylin.rest.service.CubeService$$FastClassBySpringCGLIB$$17a07c0e.invoke(<generated>) > at > org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204) > at > org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:700) > at > org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150) > …… > > What I do is to load hive table in the datasource tab after I change the hive > table using hive cli. Is any solution to this problem?
Mars
