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20.8. Monitoring Database Link Activity
It is possible to monitor the activity of database links from the command line using the
ldapsearch command-line utility to return the monitoring attributes that are required. The monitoring attributes are stored in the cn=monitor,cn=database_link_name, cn=chaining database,cn=plugins,cn=config.
For example, the
ldapsearch command-line utility can be used to retrieve the number of add operations received by a particular database link. For example, this command monitors a database link called DBLink1:
# ldapsearch -D "cn=Directory Manager" -W -p 389 -h server.example.com -x -s sub -b "cn=monitor,cn=DBLink1,cn=chaining database,cn=plugins,cn=config" "(objectclass=*)" nsAddCount
Table 20.13, “Database Link Monitoring Attributes” lists the database link monitoring attributes which can be monitored.
Table 20.13. Database Link Monitoring Attributes
| Attribute Name | Description |
|---|---|
| nsAddCount | The number of add operations received. |
| nsDeleteCount | The number of delete operations received. |
| nsModifyCount | The number of modify operations received. |
| nsRenameCount | The number of rename operations received. |
| nsSearchBaseCount | The number of base-level searches received. |
| nsSearchOneLevelCount | The number of one-level searches received. |
| nsSearchSubtreeCount | The number of subtree searches received. |
| nsAbandonCount | The number of abandon operations received. |
| nsBindCount | The number of bind request received. |
| nsUnbindCount | The number of unbinds received. |
| nsCompareCount | The number of compare operations received. |
| nsOperationConnectionCount | The number of open connections for normal operations. |
| nsBindConnectionCount | The number of open connections for bind operations. |
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