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Initial 2.2.4 exploration results
I've put together our development environment using OpenLDAP 2.2.4.
This environment consists of 2 Netra 1405's (multi-processor) with multiple
The installed software items are:
Cyrus Sasl 2.1.17
These were all compiled with GCC3.
My usual load test:
30 servers querying the replica. The queries are done via ldapsearch,
which does a GSSAPI bind, filters on uid for a maildrop, and then unbinds.
The uid's involved fall into 3 cases:
uid exists, has maildrop
uid exists, doesn't have maildrop
uid doesn't exist
I've been running this test against various OpenLDAP releases since
The last test I ran against 2.1.23 resulted in a 55 queries/second answer
The current test I ran against 2.2.4 resulted in a 110 queries/second
However, I need to run this load test against the current 2.1 series where
it is using BDB 4.2.52 instead of BDB 4.1.x.
I also set up syncRepl. I've found that quite often, the replica never
shuts down when using syncRepl, and instead the server hangs indefinately.
The only way out of this situation is a kill -9, and then a db_recover.
So, I cannot see that this feature is production ready at this time (slapd
has been waiting for threads to "terminate" for over 30 minutes as I write
I've also had one case under syncRepl that changes made to the master
didn't end up in the master's DB when the replica had been attached, then
de-attached, and the BDB ended up being corrupted, causing me to have to
run db_recover before the master would work again, and having to re-add the
Principal Software Developer
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