Netscape NETSCAPE DIRECTORY SERVER 6.1 - ADMINISTRATOR, Руководство администратора

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Monitoring Database Activity
414 Netscape Directory Server Administrator’s Guide • August 2002
Database File-Specific Table
The directory displays a table for each index file that makes up your database. Each
of the tables provides the following information:
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:
Read-only page evicts Indicates the number of read-only pages discarded from the cache to make
room for new pages.
Read-write page evicts Indicates the number of read-write pages discarded from the cache to make
room for new pages. This value differs from Pages Written Out in that these
are discarded read-write pages that have not been modified.
Table 12-7 Database Performance Monitoring - Database File-Specific table
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.
Table 12-6
Database Performance Monitoring - Database Cache Information (Continued)
Performance Metric Current Total