(ITS#7182) back-ldap monitoring improvements

[ondrej.kuznik@acision.com]

Full_Name: Ondrej Kuznik
Version: HEAD
OS: Linux
URL: ftp://ftp.openldap.org/incoming/Ondrej-Kuznik-20120228-back-ldap-monitoring-v2.tgz
Submission from: (NULL) (62.168.56.1)


I have prepared some patches to back-ldap (and one to back-monitor) that expose
operation and connection monitoring information from a running back-ldap
database and I would like to see this or similar functionality included in the
OpenLDAP codebase.

The url above contains a patchset against HEAD for review.

The following things are yet to be resolved:
- there is no monitoring of completed operations yet, only operations initiated
against the remote database(s).
- the binds performed by the ldap_back_default_rebind function are not counted
- slapo-chain has not been tested yet
- test suite integration: back-ldap looks excluded from the test suite
- better connection handling (connections should have stable identifiers)

The obligatory license clause follows:

The attached file is derived from OpenLDAP Software. All of the
modifications to OpenLDAP Software represented in the following
patch(es) were developed by Acision. Acision has not assigned rights
and/or interest in this work to any party. I, Ondrej Kuznik am
authorized by Acision, my employer, to release this work under the
following terms.

The attached modifications to OpenLDAP Software are subject to the
following notice:
Copyright 2012 Acision
Redistribution and use in source and binary forms, with or without
modification, are permitted only as authorized by the OpenLDAP Public
License.