[Date Prev][Date Next]
[Chronological]
[Thread]
[Top]
Re: Performance Tuning
----------------------------------------- (on rodin)
noname was scanned on KRDL Mail Gateway and no virus found
---------------------------------------------------------
Hi,
Thank you for the reply. :-)
> > Hi,
> > We are doing some performance testing on our server which is connected to an
> > openldap slapd. In the testing program, we do the following operations for
> > 100 times: query the ldap server, modify entries, delete the entries, and
> > create them again.
>
> Assuming n = 1000
n=58
>
> 1. Query n entries.
> 2. Modify all of those n entries in some way,
> 3. Delete all of those n entries.
> 4. Re-Add the same n entries.
1. Query n entries.
2. For each entry, do:
3. Modify all of those n entries in some way,
4. Delete all of those n entries.
5. Re-Add the same n entries.
> Is this how the test is running?
>
> LDAP is really not designed for constant change, so the following operations
> are all usually very, very, slow:
> 1. Modification
> 2. Delete
> 3. Add
>
> The following operation is usually very, very, fast:
> 1. Query (like a database select).
Unfortunately, after the above test procedure, Query has become very slow. What we are afraid of is whether the performance of the ldap server will gradually reduced in a long run after rare changes are accumulated.
> > The result is not very promising. The query time is increased from 0.223
> > second
>
> This seems very, very, slow. (If this is for each record).
Nop, it is for 58 records.
> Possible causes:
> a) modification tracking is on (All entries are now larger by 4 lines, until
> deleted?)
No.
> b) replication is on (your replication deletions are still running, long after
> the records have been been removed from the master?)
No.
> c) something else. :-)
>
> What does your directory look like after the entries have been deleted, but
> before maore have been addded? Are the indicies large?
Yes, the index files grow.
>
> -Ronabop
>
> --
> Personal: ron@opus1.com, 520-326-6109, http://www.opus1.com/ron/
> Work: rchmara@pnsinc.com, 520-546-8993, http://www.pnsinc.com/
> The opinions expressed in this email are not neccesarrily those of myself,
> my employers, or any of the other little voices in my head.