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(ITS#7717) Sudden memory increase leading to Master LDAP crash
Full_Name: Marcon Bruno
Submission from: (NULL) (220.127.116.11)
Hi. We have deployed OpenLDAP on our system, using the following architecture :
One primary master
One failover master (mirror mode)
It works very well until the master LDAP receive two many writes /seconds. With
40 writes/seconds, the master LDAP work well about several minutes, then the
memory process (slapd) started to increase very quickly, about 20Mo/s !
When all memory and swap is consumed, the OS kill Slapd.
- Even in disabling all overlays except syncprov, the problem persists
- If disabling only syncprov, there is no more problem
- If all slaves and mirror master are stopped, there is no more problem
This problem is very annoying. We are looking to a Microsoft solution, even if
we have already deployed our solution but obviously, we would like to keep an
The problem is very easy to replay : one master and one slave are sufficient.
Then run 9 windows with a script adding an entry and modifying an entry.