Monitoring Server ActivityChapter 12 Monitoring Server and Database Activity 407Connection StatusThe Connection Status table in the Directory Server Console provides the followinginformation about the amount of resources in use by each currently openconnection:Table 12-2 Server Performance Monitoring - Current Resource UsageResource Current totalActive Threads Current number of active threads used for handling requests. Additionalthreads may be created by internal server tasks, such as replication orchaining.Open Connections Total number of open connections. Each connection can account formultiple operations, and therefore multiple threads.Remaining AvailableConnectionsTotal number of remaining connections that the server can concurrentlyopen. This number is based on the number of currently open connectionsand the total number of concurrent connections that the server is allowed toopen. 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 concurrentconnections is generated by the operating system, but is not based on filedescriptors. Refer to your operating system documentation for moreinformation.Threads Waiting to Write toClientTotal number of threads waiting to write to the client. Threads may not beimmediately written when the server must pause while sending data to aclient. Reasons for a pause include a slow network, a slow client, or anextremely large amount of information being sent to the client.Threads Waiting to Readfrom ClientTotal number of threads waiting to read from the client. Threads may not beimmediately read if the server starts to receive a request from the client andthen 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 threadconcurrency.Databases in use Total number of databases being serviced by the server.Table 12-3 Server Performance Monitoring - Connection StatusTable Header DescriptionTime opened Indicates the time on the server when the connection was initially opened.
