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Grouper UI stem and groups browing is slow


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  • From: "Allen Chen" <>
  • To: "" <>, "grouper-dev" <>
  • Subject: Grouper UI stem and groups browing is slow
  • Date: Sat, 8 Dec 2007 23:10:26 +0800

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


mobile: +1-734-255-6644

The Internet2 Dynamic Circuit Network:
Unleash your Interdomain Imagination
http://www.internet2.edu/network/dc/



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