Nsslapd-Maxdescriptors (Maximum File Descriptors) - Netscape DIRECTORY SERVER 7.0 Configuration Manual

Core Server Configuration Attributes Reference
The limit applies to the total size of the LDAP request. For example, if the request
is to add an entry and if the entry in the request is larger than two megabytes,
then the add request is denied. Care should be taken when changing this
attribute, and we recommend contacting Netscape Professional Services before
doing so.
Entry DN:
Valid Range:
Default Value:
Syntax:
Example:

nsslapd-maxdescriptors (Maximum File Descriptors)

Not applicable to Directory Server installations on Windows and AIX machines.
This attribute sets the maximum, platform-dependent number of file descriptors
that the Directory Server will try to use. A file descriptor is used whenever a client
connects to the server and for some server activities, such as index maintenance.
The number of available file descriptors for TCP/IP connections is the total for the
nsslapd-maxdescriptors
the server as specified in the
non-client connections, such as index management and managing replication.
[See "nsslapd-reservedescriptors (Reserved File Descriptors)," on page 75].
The number that you specify here should not be greater than the total number of
file descriptors that your operating system allows the
This number will differ depending on your operating system. Some operating
systems allow you to configure the number of file descriptors available to a
process. See your operating-system documentation for details on file descriptor
limits and configuration. The
Directory Server Installation Guide) can be used to suggest changes to the system
kernel or TCP/IP tuning attributes, including increasing the number of file
descriptors if necessary. You should consider increasing the value on this
attribute if the Directory Server is refusing connections because it is out of file
descriptors. When this occurs, the following message is written to the Directory
Server's error log file:
Not listening for new connections -- too many fds open
70 Netscape Directory Server Configuration, Command, and File Reference • October 2004
cn=config
0 - 2GB (2,147,483,647 bytes) where a value of 0 indicates that the
default value should be used.
2097152
Integer
nsslapd-maxbersize: 2097152
attribute minus the number of file descriptors used by
nsslapd-reservedescriptors
dsktune
ns-slapd
program (explained in the Netscape
attribute for
process to use.