Netscape NETSCAPE DIRECTORY SERVER 6.1 - ADMINISTRATOR, Руководство администратора

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Monitoring Server Activity
Chapter 12 Monitoring Server and Database Activity 407
Connection Status
The Connection Status table in the Directory Server Console provides the following
information about the amount of resources in use by each currently open
connection:
Table 12-2
Server Performance Monitoring - Current Resource Usage
Resource Current total
Active Threads Current number of active threads used for handling requests. Additional
threads may be created by internal server tasks, such as replication or
chaining.
Open Connections Total number of open connections. Each connection can account for
multiple operations, and therefore multiple threads.
Remaining Available
Connections Total number of remaining connections that the server can concurrently
open. This number is based on the number of currently open connections
and the total number of concurrent connections that the server is allowed to
open. In most cases, the latter value is determined by the operating system,
and is expressed as the number of file descriptors available to a task.
On Windows NT and IBM AIX, the number of allowed concurrent
connections is generated by the operating system, but is not based on file
descriptors. Refer to your operating system documentation for more
information.
Threads Waiting to Write to
Client Total number of threads waiting to write to the client. Threads may not be
immediately written when the server must pause while sending data to a
client. Reasons for a pause include a slow network, a slow client, or an
extremely large amount of information being sent to the client.
Threads Waiting to Read
from Client Total number of threads waiting to read from the client. Threads may not be
immediately read if the server starts to receive a request from the client and
then the transmission of that request is halted for some reason. Generally,
threads waiting to read are an indication of a slow network or client.
Thread Concurrency Meaningful on Solaris 2.x only. Provides an indication of the level of thread
concurrency.
Databases in use Total number of databases being serviced by the server.
Table 12-3 Server Performance Monitoring - Connection Status
Table Header Description
Time opened Indicates the time on the server when the connection was initially opened.