问题描述
我遇到的问题与以下帖子中Pentaho博客上报告的问题类似：
https://forums.pentaho.com/threads/47819-Help-regd-member-restriction/?p=141499
该查询非常简单：
MDX: SELECT NON EMPTY {[Measures].[QTD_EMPRESAS]} on 0,NON EMPTY {[BAIRRO.BAIRRO_H].[TodoS_BAIRRO_H],[BAIRRO.BAIRRO_H].[06],[BAIRRO.BAIRRO_H].[061]} on 1 FROM [V_DM_EMPRESAS_LOCALIDADE] WHERE {[BAIRRO_F.BAIRRO_H].[06],[BAIRRO_F.BAIRRO_H].[061]}
如果我使用一个过滤器，则返回成功，但是使用两个过滤器，如发生上述查询错误。这两个过滤器加起来最多有200条记录，少于错误中报告的限制。
维度BAIRRO有10000多个记录，但是我仅过滤了两个BAIRRO。
发生错误：
Caused by: mondrian.olap.ResourceLimitExceededException: Mondrian Error:Number of members to be read exceeded limit (10,000)
at mondrian.resource.MondrianResource$_Def11.ex(MondrianResource.java:1180)
at mondrian.rolap.sqlMemberSource.getMemberChildren2(sqlMemberSource.java:993)
at mondrian.rolap.sqlMemberSource.getMemberChildren(sqlMemberSource.java:891)
at mondrian.rolap.sqlMemberSource.getMemberChildren(sqlMemberSource.java:864)
at mondrian.rolap.NoCacheMemberReader.getMemberChildren(NoCacheMemberReader.java:179)
at mondrian.rolap.RolapCubeHierarchy$NoCacheRolapCubeHierarchyMemberReader.readMemberChildren(RolapCubeHierarchy.java:970)
at mondrian.rolap.RolapCubeHierarchy$NoCacheRolapCubeHierarchyMemberReader.getMemberChildren(RolapCubeHierarchy.java:1027)
at mondrian.rolap.NoCacheMemberReader.getMemberChildren(NoCacheMemberReader.java:159)
at mondrian.rolap.RolapSchemaReader.internalGetMemberChildren(RolapSchemaReader.java:186)
at mondrian.rolap.RolapSchemaReader.getMemberChildren(RolapSchemaReader.java:169)
at mondrian.rolap.RolapSchemaReader.getMemberChildren(RolapSchemaReader.java:162)
at mondrian.olap.DelegatingSchemaReader.getMemberChildren(DelegatingSchemaReader.java:78)
at mondrian.olap.fun.AggregateFunDef$AggregateCalc.getChildCount(AggregateFunDef.java:571)
at mondrian.olap.fun.AggregateFunDef$AggregateCalc.optimizeMemberSet(AggregateFunDef.java:490)
at mondrian.olap.fun.AggregateFunDef$AggregateCalc.optimizeChildren(AggregateFunDef.java:398)
at mondrian.olap.fun.AggregateFunDef$AggregateCalc.optimizeTupleList(AggregateFunDef.java:252)
at mondrian.rolap.RolapResult.<init>(RolapResult.java:314)
at mondrian.rolap.RolapConnection.executeInternal(RolapConnection.java:662)
at mondrian.rolap.RolapConnection.access$000(RolapConnection.java:52)
at mondrian.rolap.RolapConnection$1.call(RolapConnection.java:613)
at mondrian.rolap.RolapConnection$1.call(RolapConnection.java:611)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
为避免此错误，在Mondrian模式中，我配置了Role，在HierarchyGrant配置中，我将rollupPolicy设置为false。
这真的是个好策略吗？还是有更好的一个？
解决方法
Role 和 Hierarchy 授权是为了安全，所以我不会设置它们，除非您需要它们进行数据访问控制。
看起来您的 mondrian.result.limit 配置设置为 10,000 太低了。为了优化蒙德里安的性能，我将从这个 mondrian.properties 开始并从那里调整设置：