Full_Name: Jorge Perez Burgos Version: 2.4.21 OS: SLES 10 SP3 x86_64 URL: ftp://ftp.openldap.org/incoming/ Submission from: (NULL) (195.235.15.243)

Our slapd uses 256 threads with conn_max_pending_auth 5000. We have seen that with certain network traffic and conditions a huge increased in the amount of memory. After using valgrind and a little study, we have seen slapd cache operation structure in a list. These lists are per thread and could reach high values, in some cases we have seen 12500 operations cached, so 256*12500 could reach around 3GB.

It's suggested adding an option to disable this cache or limit the growth of this one for future versions.