Reviewing Other Configuration Issues

This topic describes configuration settings you should check that pertain to your app server, kernel and device driver settings, and your operating system patch level.

This page discusses:

See Also
Collecting Logs and Core Files
Java Activation Error on the ENOVIA Live Collaboration Server
mx_err_pid.log for Windows

Kernel and Device Driver Settings

As described in Collecting Logs and Core Files, kernel settings can be extremely important. File descriptors are another problem source, though typically for earlier versions of Solaris since most Unix platforms have fairly large default values. Windows does not have this problem (except when portable code uses file descriptors for winsock IO).

To find the maximum number of file descriptors available:

  • In ksh, use ulimit -n.
  • In csh, use limit descriptors.

Some parameters have an affect on performance, including TCP settings on Solaris, as shown below.

Solaris TCP Parameter Description Suggested Value
tcp_close_wait_interval

On high connection rates, if netstat shows many sockets in the CLOSE_WAIT or FIN_WAIT_2 state

 60000
tcp_fin_wait_2_flush_interval

Checks the fin wait interval (some versions of solaris can be 10 times the normal value).

 67500

Use the following command to get a parameter from the table: 

ndd -get /dev/tcp PARAMETER

Use the following command to set a parameter in a table: 

ndd -set /dev/tcp PARAMETER