Grouper Developers Forum

[Colin Hudler <>]

Here's some quick stats:

I fetched 97 groups with one WS query, for each group I made a new WS 
request for the members.  The mean member count is 1429, and std 
deviation is 5689. range: 0-36818.

LdapSourceAdapter:
cold run:       12m49
consecutive run:10m

GrouperJndiSourceAdapter:
cold run:        32m7
consecutive run: 30m25

NICE SPEEDUP using your source adapter, thanks!

On 06/18/2009 01:58 PM, Colin Hudler wrote:
> I think I fogot to include the patch.  It is now attached.
>
> On 06/18/2009 01:52 PM, Colin Hudler wrote:
> > Thanks again, Jim. I installed it according to the README and it worked
> > well. However, it continued to connect and bind on each search, and
> > never closed the context. The ldap server quickly ran out of sockets. I
> > started to debug it, but I couldn't find the 2.8.2 vt-ldap api docs. So,
> > I downloaded 3.0 and converted it. Works great now. I also have it using
> > a properties file, so much less is configured in sources.xml. I have
> > attached the patch between my new one and the only changed file
> > (LdapSourceAdapter.java).
> >
> > Sorry, you will see that I might have made a few unnecessary changes,
> > also keep in mind that I am not really a Java programmer.
> >
> > On 06/18/2009 11:49 AM, Jim Fox wrote:
> > > Here is the uwsubject library.
> > >
> > > http://staff.washington.edu/fox/grouper/dist/
> > >
> > >
> > > Jim
> > >
> > >
> > > On Thu, 18 Jun 2009, Colin Hudler wrote:
> > >
> > > > Date: Thu, 18 Jun 2009 09:41:25 -0700
> > > > From: Colin Hudler 
> > > > <>
> > > > To: Jim Fox 
> > > > <>
> > > > Cc: Tom Zeller 
> > > > <>,
> > > > ""
> > > >  
> > > > <>
> > > > Subject: Re: [grouper-dev] sources.xml Connection Pool Ldap?
> > > >
> > > > Please do, Jim. Thank you.
> > > >
> > > > On 06/18/2009 11:13 AM, Jim Fox wrote:
> > > > > We implemented a source adapter at UW that uses the vt ldap library
> > > > > and
> > > > > supports connection pooling. I can send you a copy if you'd like to
> > > > > try
> > > > > it out.
> > > > >
> > > > > Jim
> > > > >
> > > > >
> > > > > On Thu, 18 Jun 2009, Tom Zeller wrote:
> > > > >
> > > > > > Date: Thu, 18 Jun 2009 07:05:44 -0700
> > > > > > From: Tom Zeller 
> > > > > > <>
> > > > > > To: Colin Hudler 
> > > > > > <>
> > > > > > Cc: 
> > > > > > ""
> > > > > >  
> > > > > > <>
> > > > > > Subject: Re: [grouper-dev] sources.xml Connection Pool Ldap?
> > > > > >
> > > > > > Well, no, the JNDISourceAdapter isn't conducive to pooling.
> > > > > >
> > > > > > We indeed are creating and closing the ldap context before and after
> > > > > > each search, so adding the connection pooling environment property
> > > > > > won't help
> > > > > > much.
> > > > > > We might want
> > > > > > to provide an LdapSourceAdapter which uses vt-ldap so we can have
> > > > > > connection pooling etc. even with TLS.
> > > > > >
> > > > > >
> > > > > > I'm not sure what priority this is.
> > > > > >
> > > > > > TomZ
> > > > > >
> > > > > > On Thu, Jun 18, 2009 at 8:50 AM, Colin Hudler 
> > > > > > <>
> > > > > > wrote:
> > > > > > Hi,
> > > > > >
> > > > > > I observed one of our test instances of grouper starting a new ldap
> > > > > > session each time a person subject was to be resolved (the other
> > > > > > test instances use mysql or mssql for the subject source). Is there a
> > > > > > way to request connection pooling? I could not find this
> > > > > > answer in the archives or wiki, but there is an "issue" in jira at
> > > > > > <https://bugs.internet2.edu/jira/browse/MCO-9>. I am unable to
> > > > > > extract the answer from that, however.
> > > > > >
> > > > > > the sources.xml is using
> > > > > > edu.internet2.middleware.grouper.subj.GrouperJndiSourceAdapter and
> > > > > > <param-name>INITIAL_CONTEXT_FACTORY</param-name>
> > > > > > <param-value>com.sun.jndi.ldap.LdapCtxFactory</param-value>