Red Hat DIRECTORY SERVER 7.1, Administrator'S Manual, Page: 465 / 652

Monitoring Database Activity
Chapter 12 Monitoring Server and Database Activity 465
Monitoring Databases from the Command-Line
You can monitor your directory’s database activities from any LDAP client by
performing a search operation with the following characteristics:
• Search for attribute
objectClass=*
• Search base:
cn=monitor,cn=
database_instance
,cn=ldbm database,
cn=plugins, cn=config,
where database_instance is the name of the database
that you want to monitor
• Search scope:
base
For example:
ldapsearch -h directory.example.com -s base -b
"cn=monitor,cn=Example,cn=ldbm database,cn=plugins, cn=config"
"objectclass=*"
In this example, the ldapsearch operation looks for the
Example
database. For
information on searching the directory, see “Using ldapsearch,” on page 588.
When you monitor your server’s activities, you see the following information:
•
database
: Identifies the type of database you are currently monitoring.
•
readonly
: Indicates whether the database is in read-only mode.
0
indicates
that the server is not in read-only mode,
1
indicates that it is in read-only
mode.
•
entrycachehits
: Provides the same information as described in Entry cache
hits in Table 12-5, on page 463.
Table 12-7 Database Performance Monitoring - Database File-Specific
Performance Metric Current Total
Cache hits Number of times that a search result resulted in a cache hit on this specific
file. That is, a client performs a search that requires data from this file, and
the directory obtains the required data from the cache.
Cache misses Number of times that a search result failed to hit the cache on this specific
file. That is, a search that required data from this file was performed, and
the required data could not be found in the cache.
Pages read in Indicates the number of pages brought to the cache from this file.
Pages written out Indicates the number of pages for this file written from cache to disk.