Increasing the hard limit – Sybase DC35823-01-1500-04 User Manual

Page 52

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File descriptors and user connections

36

Adaptive Server Enterprise

ulimit -Sn new_value

where n is the current value for the soft limit, and new_value is the value to
which you want to increase the soft limit.

Note

You can use the preceding commands in your RUN_server_name file to

increase the hard and soft limits. The RUN_server_name file is a Bourne shell
script, be sure to use the Bourne shell versions of these commands in the
RUN_server_name file.

Increasing the hard limit

To increase the hard limit, use a program like the sample program shown in
“Sample program” on page 37.

v

Setting up the sample program to increase the hard limit

1

Create file_name.c (where file_name is the name you give the file), by
using an ASCII text editor. Type the text shown in the sample in “Sample
program” on page 37.

2

Compile the file:

cc file_name.c -o program_name

where file_name is the name of the source file you created, and
program_name is the name you want to give the program.

3

Change the program’s permissions and ownership so that it will execute as
“root”:

chmod 755 program_name

chown root program_name

where program_name is the name of the compiled program.

4

The “root” user can use the program to start Adaptive Server with
increased user connections by typing the following command at the
operating system prompt:

# program_name dataserver -d master_device_name

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