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 HP Open Source Middleware Stacks Blueprint:: Directory Services on HP ProLiant Servers with SUSE Linux Enterprise Server 10

Monitoring OpenLDAP with the HP OpenView Operations CDS Gallery SPIs
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HP enhances the OSMS Directory Services by using HP OpenView Operations Gallery Smart Plug-Ins (OVO SPIs).

HP OpenView Operations (OVO) is a distributed, client/server software solution designed to provide service-driven event and performance management of business-critical enterprise systems, applications, and services.

The SPI for CDS is a value-add software component for HP OVO. This software is provided free to all customers of HP OVO for use under the terms and conditions documented on the download Web page. This SPI provides powerful, centralized tools to monitor and manage the operation of multiple installations of CDS servers on SLES10.

The SPI components include the following:

  • Policies that are designed to monitor key health parameters of the CDS server

  • Policies that allow you to monitor the overall availability of the CDS server

  • Tools that let you run commands on the managed CDS installation

NOTE: The HP OVO Management Server runs on either HP-UX or Windows. For the examples in this blueprint, HP OpenView Operations for Windows (OVOW) was chosen.

Figure 7 displays the SPI architecture and OVOW components.

Figure 7 OVOW Architecture

OVOW Architecture

Software Prerequisites and Reference Guides

Before attempting to install the CDS SPI, ensure that you have a functional HP OVOW 7.5 installation, including an HP OVOW Management Console and the Linux OVO SPI agents for the CDS server. In addition, the following OVOW patches are required:

Table 4 OVOW Software Patches

Patch Name Version Patch Dependencies
OVO Message Agent and Action Management patch A.07.31 OVOW_00187 None
Linux Service DiscoverySupport patch A.07.31OVOW_00198 OVOW_00187
OVO Message Agent and Action Management patchA.07.32OVOW_00213OVOW_00166; OVOW_00068
OVO Message Agent and Action Management patch A.07.33OVOW_00234None

 

The patches listed in Table 4 can be found on the HP OpenView support website located at: http://support.openview.hp.com/patches/patch_index.jsp

The SPI installation and configuration documents can be found on the HP OpenView Web site located at:

http://managementsoftware.hp.com/products/spi/

For information about installing the HP OVOW agent, see the HP OpenView Operations for Windows Installation Guide located at:

http://ovweb.external.hp.com/ovnsmdps/pdf/ovow75_install.pdf

Using the SPIs

The OVOW SPIs support two methodologies to manage the CDS servers:

  • User-driven methods

  • Event-driven methods

User-Driven Methods

The user-driven functions are accessed from the Tools menu. You can start, stop, and monitor CDS from the OVOW console. The following table provides an overview of the tools in the group OpenLDAP SPI CDS:

Table 5 Application Labels and Descriptions

Application LabelDescription
Configure CDS Instrumentation Extracts and deploys CDS Instrumentation.
Restart CDS ServerRestarts the CDS server.
Start CDS ServerStarts the CDS server on the managed node.
Stop CDS ServerStops the CDS server on the managed node.

 

In addition to using the tools listed in Table 5 you can also monitor the summary information of the following OpenLDAP operations:

  • Add

  • Bind

  • Bytes Sent

  • Compare

  • Delete

  • Entries Sent

  • Initiated

  • Modify

  • Read Waits

  • Referrals Sent

  • Search

  • Total Connections

  • Unbind

  • Write Waits

For the OpenLDAP-SPI monitor tools to work properly, you must configure the monitor database of the respective LDAP server (OpenLDAP or CDS). For example, add the following lines to the slapd.conf file: 

# --- monitor backend
database        monitor
access to dn.subtree="cn=Monitor"
        by dn.exact="dc=example,dc=com" write
        by users read
        by * none
Event-Driven Methods

The event-driven methods are used to manage events that are triggered when certain conditions are met, for example, if the CDS server process utilizes a greater percentage of CPU bandwidth than the threshold defined in the policy. When a threshold is exceeded, warning messages appear in the management console. Table 6 lists the CDS SPI policy details:

Table 6 CDS Policies in the OpenLDAP CDS Policy Group

Policy Name Policy TypeDescriptionDefault Polling Interval Default Threshold
CDS CPU—Usage Monitor Measurement Threshold Monitors the CPU usage of the CDS server. By default, if the CPU utilization percentage of any CDS process exceeds 90%, a critical message is displayed in an active message browser of the OVOW console. 30 seconds 90%
CDS Memory Usage Monitor Measurement Threshold Monitors the operating system's memory usage of the CDS server. By default, if the memory utilization percentage of any CDS process exceeds 90%, a critical message is displayed in active message browser of the OVOW console. 30 seconds 90%
Process Monitor—CDS SPI Scheduled Task Monitors a CDS process. If a CDS process is killed, then a message is displayed in an active message browser of the OVOW console. 1 minute N/A
Status Message—CDS SPI Open Message Interface Provides an interface for displaying CDS server error messages. The Open Message Interface policies are used by other policies and are not used directly for monitoring. 5 minutes N/A

 



Setting up Security for the CDS Server
  		 
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