mondrian.olap.ResourceLimitExceededException：蒙德里安错误：要读取的成员数量超出限制（10,000）

Question

我有一个类似于 Pentaho 博客在下面的帖子中报告的问题：

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，它会成功返回，但使用两个过滤器，就像上面的查询会发生错误。 两个过滤器加起来最多 200 条记录，小于错误中报告的限制。

维度 BAIRRO 有 10000 多条记录，但我只过滤了两个 BAIRRO。

错误发生：

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)

为了避免这个错误，在蒙德里安模式中，我配置了角色，在 HierarchyGrant 配置中，我将 rollupPolicy 设置为 false。

这真的是一个好策略吗？ 或者有更好的吗？

Answer 1

Role 和 Hierarchy 授权是为了安全，所以除非您需要它们进行数据访问控制，否则我不会设置它们。

看起来您的 mondrian.result.limit 配置设置设置得太低，为 10,000。 为了优化蒙德里安性能，我将从这个 mondrian.properties 开始并从那里调整设置：

https://github.com/pentaho/pentaho-platform/blob/master/assemblies/pentaho-solutions/src/main/resources/pentaho-solutions/system/mondrian/mondrian.properties