Grouper Developers Forum

["Allen Chen" <>]

   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


-- 
Jessica Bibbee, Technical Analyst
Internet2

 
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