Performance Issue with JBP2.7.1; Any workaround??
vivek_saini07 May 6, 2009 8:32 AMI observed that Hibernate layer is firing unnecessary queries to DB. This is observed in getPortal(String name) method of ContextImpl class.
This method called from getDashboard(User user) method of CustomizationManagerService.
I put following sop in getPortal(String name) method.
public Portal getPortal(String name) { System.out.println("before getChild(name);===>"); PortalObject child = getChild(name); System.out.println("After getChild(name);===>"); if (child instanceof Portal) { return (Portal)child; } return null; }
and these are the logs from server
before getChild(name);===> [Location: 152 Method: write] INFO [STDOUT] Hibernate: select children0_.PARENT_KEY as PARENT4_1_, children0_.PK as PK1_, children0_.NAME as NAME1_, children0_.PK as PK9_0_, children0_."PATH" as PATH2_9_0_, children0_.NAME as NAME9_0_, children0_.PARENT_KEY as PARENT4_9_0_ from JBP_OBJECT_NODE children0_ where children0_.PARENT_KEY=? [Location: 152 Method: write] INFO [STDOUT] Hibernate: select portalobje0_.PK as PK10_0_, portalobje0_.LISTENER as LISTENER10_0_, portalobje0_4_.INSTANCE_REF as INSTANCE2_18_0_, case when portalobje0_1_.PK is not null then 1 when portalobje0_2_.PK is not null then 2 when portalobje0_3_.PK is not null then 3 when portalobje0_4_.PK is not null then 4 when portalobje0_.PK is not null then 0 end as clazz_0_, declaredpr1_.OBJECT_KEY as OBJECT1_2_, declaredpr1_.jbp_VALUE as jbp2_2_, declaredpr1_.NAME as NAME2_, modes2_.PK as PK3_, modes2_.name as name3_, windowstat3_.PK as PK4_, windowstat3_.name as name4_ from JBP_PORTAL_OBJECT portalobje0_ left outer join JBP_CONTEXT portalobje0_1_ on portalobje0_.PK=portalobje0_1_.PK left outer join JBP_PORTAL portalobje0_2_ on portalobje0_.PK=portalobje0_2_.PK left outer join JBP_PAGE portalobje0_3_ on portalobje0_.PK=portalobje0_3_.PK left outer join JBP_WINDOW portalobje0_4_ on portalobje0_.PK=portalobje0_4_.PK left outer join JBP_PORTAL_OBJECT_PROPS declaredpr1_ on portalobje0_.PK=declaredpr1_.OBJECT_KEY left outer join JBP_PORTAL_MODE modes2_ on portalobje0_.PK=modes2_.PK left outer join JBP_PORTAL_WINDOW_STATE windowstat3_ on portalobje0_.PK=windowstat3_.PK where portalobje0_.PK=? [Location: 152 Method: write] INFO [STDOUT] Hibernate: select portalobje0_.PK as PK10_0_, portalobje0_.LISTENER as LISTENER10_0_, portalobje0_4_.INSTANCE_REF as INSTANCE2_18_0_, case when portalobje0_1_.PK is not null then 1 when portalobje0_2_.PK is not null then 2 when portalobje0_3_.PK is not null then 3 when portalobje0_4_.PK is not null then 4 when portalobje0_.PK is not null then 0 end as clazz_0_, declaredpr1_.OBJECT_KEY as OBJECT1_2_, declaredpr1_.jbp_VALUE as jbp2_2_, declaredpr1_.NAME as NAME2_, modes2_.PK as PK3_, modes2_.name as name3_, windowstat3_.PK as PK4_, windowstat3_.name as name4_ from JBP_PORTAL_OBJECT portalobje0_ left outer join JBP_CONTEXT portalobje0_1_ on portalobje0_.PK=portalobje0_1_.PK left outer join JBP_PORTAL portalobje0_2_ on portalobje0_.PK=portalobje0_2_.PK left outer join JBP_PAGE portalobje0_3_ on portalobje0_.PK=portalobje0_3_.PK left outer join JBP_WINDOW portalobje0_4_ on portalobje0_.PK=portalobje0_4_.PK left outer join JBP_PORTAL_OBJECT_PROPS declaredpr1_ on portalobje0_.PK=declaredpr1_.OBJECT_KEY left outer join JBP_PORTAL_MODE modes2_ on portalobje0_.PK=modes2_.PK left outer join JBP_PORTAL_WINDOW_STATE windowstat3_ on portalobje0_.PK=windowstat3_.PK where portalobje0_.PK=? [Location: 152 Method: write] INFO [STDOUT] Hibernate: select portalobje0_.PK as PK10_0_, portalobje0_.LISTENER as LISTENER10_0_, portalobje0_4_.INSTANCE_REF as INSTANCE2_18_0_, case when portalobje0_1_.PK is not null then 1 when portalobje0_2_.PK is not null then 2 when portalobje0_3_.PK is not null then 3 when portalobje0_4_.PK is not null then 4 when portalobje0_.PK is not null then 0 end as clazz_0_, declaredpr1_.OBJECT_KEY as OBJECT1_2_, declaredpr1_.jbp_VALUE as jbp2_2_, declaredpr1_.NAME as NAME2_, modes2_.PK as PK3_, modes2_.name as name3_, windowstat3_.PK as PK4_, windowstat3_.name as name4_ from JBP_PORTAL_OBJECT portalobje0_ left outer join JBP_CONTEXT portalobje0_1_ on portalobje0_.PK=portalobje0_1_.PK left outer join JBP_PORTAL portalobje0_2_ on portalobje0_.PK=portalobje0_2_.PK left outer join JBP_PAGE portalobje0_3_ on portalobje0_.PK=portalobje0_3_.PK left outer join JBP_WINDOW portalobje0_4_ on portalobje0_.PK=portalobje0_4_.PK left outer join JBP_PORTAL_OBJECT_PROPS declaredpr1_ on portalobje0_.PK=declaredpr1_.OBJECT_KEY left outer join JBP_PORTAL_MODE modes2_ on portalobje0_.PK=modes2_.PK left outer join JBP_PORTAL_WINDOW_STATE windowstat3_ on portalobje0_.PK=windowstat3_.PK where portalobje0_.PK=? [Location: 152 Method: write] INFO [STDOUT] Hibernate: select portalobje0_.PK as PK10_0_, portalobje0_.LISTENER as LISTENER10_0_, portalobje0_4_.INSTANCE_REF as INSTANCE2_18_0_, case when portalobje0_1_.PK is not null then 1 when portalobje0_2_.PK is not null then 2 when portalobje0_3_.PK is not null then 3 when portalobje0_4_.PK is not null then 4 when portalobje0_.PK is not null then 0 end as clazz_0_, declaredpr1_.OBJECT_KEY as OBJECT1_2_, declaredpr1_.jbp_VALUE as jbp2_2_, declaredpr1_.NAME as NAME2_, modes2_.PK as PK3_, modes2_.name as name3_, windowstat3_.PK as PK4_, windowstat3_.name as name4_ from JBP_PORTAL_OBJECT portalobje0_ left outer join JBP_CONTEXT portalobje0_1_ on portalobje0_.PK=portalobje0_1_.PK left outer join JBP_PORTAL portalobje0_2_ on portalobje0_.PK=portalobje0_2_.PK left outer join JBP_PAGE portalobje0_3_ on portalobje0_.PK=portalobje0_3_.PK left outer join JBP_WINDOW portalobje0_4_ on portalobje0_.PK=portalobje0_4_.PK left outer join JBP_PORTAL_OBJECT_PROPS declaredpr1_ on portalobje0_.PK=declaredpr1_.OBJECT_KEY left outer join JBP_PORTAL_MODE modes2_ on portalobje0_.PK=modes2_.PK left outer join JBP_PORTAL_WINDOW_STATE windowstat3_ on portalobje0_.PK=windowstat3_.PK where portalobje0_.PK=? [Location: 152 Method: write] INFO [STDOUT] Hibernate: select portalobje0_.PK as PK10_0_, portalobje0_.LISTENER as LISTENER10_0_, portalobje0_4_.INSTANCE_REF as INSTANCE2_18_0_, case when portalobje0_1_.PK is not null then 1 when portalobje0_2_.PK is not null then 2 when portalobje0_3_.PK is not null then 3 when portalobje0_4_.PK is not null then 4 when portalobje0_.PK is not null then 0 end as clazz_0_, declaredpr1_.OBJECT_KEY as OBJECT1_2_, declaredpr1_.jbp_VALUE as jbp2_2_, declaredpr1_.NAME as NAME2_, modes2_.PK as PK3_, modes2_.name as name3_, windowstat3_.PK as PK4_, windowstat3_.name as name4_ from JBP_PORTAL_OBJECT portalobje0_ left outer join JBP_CONTEXT portalobje0_1_ on portalobje0_.PK=portalobje0_1_.PK left outer join JBP_PORTAL portalobje0_2_ on portalobje0_.PK=portalobje0_2_.PK left outer join JBP_PAGE portalobje0_3_ on portalobje0_.PK=portalobje0_3_.PK left outer join JBP_WINDOW portalobje0_4_ on portalobje0_.PK=portalobje0_4_.PK left outer join JBP_PORTAL_OBJECT_PROPS declaredpr1_ on portalobje0_.PK=declaredpr1_.OBJECT_KEY left outer join JBP_PORTAL_MODE modes2_ on portalobje0_.PK=modes2_.PK left outer join JBP_PORTAL_WINDOW_STATE windowstat3_ on portalobje0_.PK=windowstat3_.PK where portalobje0_.PK=? [Location: 152 Method: write] INFO [STDOUT] Hibernate: select portalobje0_.PK as PK10_0_, portalobje0_.LISTENER as LISTENER10_0_, portalobje0_4_.INSTANCE_REF as INSTANCE2_18_0_, case when portalobje0_1_.PK is not null then 1 when portalobje0_2_.PK is not null then 2 when portalobje0_3_.PK is not null then 3 when portalobje0_4_.PK is not null then 4 when portalobje0_.PK is not null then 0 end as clazz_0_, declaredpr1_.OBJECT_KEY as OBJECT1_2_, declaredpr1_.jbp_VALUE as jbp2_2_, declaredpr1_.NAME as NAME2_, modes2_.PK as PK3_, modes2_.name as name3_, windowstat3_.PK as PK4_, windowstat3_.name as name4_ from JBP_PORTAL_OBJECT portalobje0_ left outer join JBP_CONTEXT portalobje0_1_ on portalobje0_.PK=portalobje0_1_.PK left outer join JBP_PORTAL portalobje0_2_ on portalobje0_.PK=portalobje0_2_.PK left outer join JBP_PAGE portalobje0_3_ on portalobje0_.PK=portalobje0_3_.PK left outer join JBP_WINDOW portalobje0_4_ on portalobje0_.PK=portalobje0_4_.PK left outer join JBP_PORTAL_OBJECT_PROPS declaredpr1_ on portalobje0_.PK=declaredpr1_.OBJECT_KEY left outer join JBP_PORTAL_MODE modes2_ on portalobje0_.PK=modes2_.PK left outer join JBP_PORTAL_WINDOW_STATE windowstat3_ on portalobje0_.PK=windowstat3_.PK where portalobje0_.PK=? [Location: 152 Method: write] INFO [STDOUT] After getChild(name);===>
So in this following query is being fired repeatedly.
select portalobje0_.PK as PK10_0_, portalobje0_.LISTENER as LISTENER10_0_, portalobje0_4_.INSTANCE_REF as INSTANCE2_18_0_, case when portalobje0_1_.PK is not null then 1 when portalobje0_2_.PK is not null then 2 when portalobje0_3_.PK is not null then 3 when portalobje0_4_.PK is not null then 4 when portalobje0_.PK is not null then 0 end as clazz_0_, declaredpr1_.OBJECT_KEY as OBJECT1_2_, declaredpr1_.jbp_VALUE as jbp2_2_, declaredpr1_.NAME as NAME2_, modes2_.PK as PK3_, modes2_.name as name3_, windowstat3_.PK as PK4_, windowstat3_.name as name4_ from JBP_PORTAL_OBJECT portalobje0_ left outer join JBP_CONTEXT portalobje0_1_ on portalobje0_.PK=portalobje0_1_.PK left outer join JBP_PORTAL portalobje0_2_ on portalobje0_.PK=portalobje0_2_.PK left outer join JBP_PAGE portalobje0_3_ on portalobje0_.PK=portalobje0_3_.PK left outer join JBP_WINDOW portalobje0_4_ on portalobje0_.PK=portalobje0_4_.PK left outer join JBP_PORTAL_OBJECT_PROPS declaredpr1_ on portalobje0_.PK=declaredpr1_.OBJECT_KEY left outer join JBP_PORTAL_MODE modes2_ on portalobje0_.PK=modes2_.PK left outer join JBP_PORTAL_WINDOW_STATE windowstat3_ on portalobje0_.PK=windowstat3_.PK where portalobje0_.PK=?
The no. of times this query gets fired is equal to no. of children of dashboardContext in Database.
I used following query to know the no. of children of dashboardContext in Database.
select count(*) from JBP_OBJECT_NODE where PARENT_KEY=8
It's true that these query gets fired only first time of method call. All subsequent data comes from cache.
But It is a performance issue since suppose there are thousands user dashboard, then this query will be fired thousands time before end user see his Dashboard first time.
Is there any workaround??