Grouper Users - Open Discussion List

[Tom Barton <>]

(CCing only the grouper-users list)

I tried but could not reproduce this problem on my test setup. Is it
possible that your tomcat needs more memory allocated to it?

Tom

Allen Chen wrote:
>    I found a problem with grouper UI: when access populateManageGroups.do, 
> I found that the first few time the page loading is very quick, but after a 
> few times i click the menu Manage Groups or My Memberships, the page 
> loading will be extremely slow. I calculate the time between 
> populateManageGroupsAction and the outputing results on the page, which is 
> not satisfying-- lowermost 0.4 secs, and upmost 4.089 secs. 
> i don't know why the performance bottleneck turns up. Does it has something 
> done with caching?
> 
> I hope someone can tell me why and help me on that issue.
> Thanks you in advance!
> 
> ps: The phenomenent happens both in Grouper UI 1.2.0 and 1.2.1
> 
> And the following is my grouper.ehcache.xml:
>  <diskStore path="java.io.tmpdir"/>
>  <defaultCache maxElementsInMemory="100000"
>                 eternal="true"
>                 timeToIdleSeconds="30"
>                 timeToLiveSeconds="120"
>                 overflowToDisk="false"
>   />
> 
> 
> 
>   <!-- Access privilege resolving caching -->
> 
>   <!-- @see   CachingAccessResolver#hasPrivilege(...) -->
>   <cache  
> name="edu.internet2.middleware.grouper.privs.CachingAccessResolver.HasPrivilege"
>           maxElementsInMemory="100000"
>           eternal="true"
>           timeToIdleSeconds="30"
>           timeToLiveSeconds="120"
>           overflowToDisk="false"
>   />
> 
> 
> 
>   <!-- Naming privilege resolving caching -->
> 
>   <!-- @see   CachingNamingResolver#hasPrivilege(...) -->
>   <cache  
> name="edu.internet2.middleware.grouper.privs.CachingNamingResolver.HasPrivilege"
>           maxElementsInMemory="100000"
>           eternal="true"
>           timeToIdleSeconds="30"
>           timeToLiveSeconds="120"
>           overflowToDisk="false"
>   />
> 
> 
> 
>   <!-- Subject resolving caching -->
> 
>   <!-- @see   CachingResolver#find(...) -->
>   <cache  name="edu.internet2.middleware.grouper.subj.CachingResolver.Find"
>           maxElementsInMemory="100000"
>           eternal="true"
>           timeToIdleSeconds="30"
>           timeToLiveSeconds="120"
>           overflowToDisk="false"
>   />
> 
>   <!-- @see   CachingResolver#findAll(...) -->
>   <cache  
> name="edu.internet2.middleware.grouper.subj.CachingResolver.FindAll"
>           maxElementsInMemory="100000"
>           eternal="true"
>           timeToIdleSeconds="30"
>           timeToLiveSeconds="120"
>           overflowToDisk="false"
>   />
> 
>   <!-- @see   CachingResolver#findByIdentifier(...) -->
>   <cache  
> name="edu.internet2.middleware.grouper.subj.CachingResolver.FindByIdentifier"
>           maxElementsInMemory="100000"
>           eternal="true"
>           timeToIdleSeconds="30"
>           timeToLiveSeconds="120"
>           overflowToDisk="false"
>   />
>   
>     <!-- @see   WheelAccessResolver#isWheelMember(...) -->
>   <cache  
> name="edu.internet2.middleware.grouper.privs.WheelAccessResolver.isWheelMember"
>           maxElementsInMemory="100000"
>           eternal="true"
>           timeToIdleSeconds="30"
>           timeToLiveSeconds="120"
>           overflowToDisk="false"
>   />
> 
> 
> 
> 
> 
> Allen Chen
> 2007-12-08
> 
> 
> 
> 发件人： Jessica Bibbee
> 发送时间： 2007-12-07 04:21:13
> 收件人： Grouper Dev; Grouper-Users
> 抄送： 
> 主题： [grouper-users] Grouper v1.2.1 Release Now Available
> 
> Hello Grouper Community!
> 
> Grouper v1.2.1 release is now available.
> Release Date: 6-Dec-07
> 
> Grouper v1.2.1 offers a few bug fixes and substantially improved 
> performance. The API and UI feature a few modest functional enhancements to 
> this end:
> 
> Substantially improved performance
> API and UI use new strategies to check privileges
> Improved API caching strategy
> A complete list of fixes and changes can be found at < 
> http://preview.tinyurl.com/39dtjc >.
> 
> 
> 
> The Grouper v1.2.1 tarballs are now available for download from the Grouper 
> product wiki < https://wiki.internet2.edu/confluence/x/BAg >. Please see < 
> https://wiki.internet2.edu/confluence/x/_zM > for a summary of the changes 
> from v1.2.0 to v1.2.1. Grouper source is also available via anonymous CVS. 
> Instructions can be found in < 
> http://viewvc.internet2.edu/viewvc.py/?root=I2MI >
> 
> This new release of Grouper v1.2.1 is now available, linked from the 
> Grouper home page: < http://grouper.internet2.edu/ > Feedback is welcomed 
> and appreciated!
> 
> Thanks! The Grouper Developer Team
> 
>