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Operating Systems Linux Red Hat Network becomes slow and return fast only after restart network Post 302895303 by moshesa on Monday 31st of March 2014 05:59:38 AM
Old 03-31-2014
Network becomes slow and return fast only after restart network

Hi,
I have 2 machines in production environment:
1. redhat machine for application
2. DB machine (oracle)

The application doing a lot of small read&writes from and to the DB machine.

The problem is that after some few hours the network from the application to the DB becomes very slow and it returns to the normal only after:
Code:
service network restart

Before:
Code:
64 bytes from hostname.domain (xxx.xxx.xxx.xxx): icmp_seq=1 ttl=63 time=7.81 ms
64 bytes from hostname.domain (xxx.xxx.xxx.xxx): icmp_seq=2 ttl=63 time=5.88 ms
64 bytes from hostname.domain (xxx.xxx.xxx.xxx): icmp_seq=3 ttl=63 time=7.81 ms

After restart network:
Code:
64 bytes from hostname.domain (xxx.xxx.xxx.xxx): icmp_seq=84 ttl=63 time=0.135 ms
64 bytes from hostname.domain (xxx.xxx.xxx.xxx): icmp_seq=85 ttl=63 time=0.171 ms
64 bytes from hostname.domain (xxx.xxx.xxx.xxx): icmp_seq=86 ttl=63 time=0.153 ms

What can it be?
How can i solve this strange behavior?

Thanks.
 

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face(1) 							   User Commands							   face(1)

NAME
face - executable for the Framed Access Command Environment Interface SYNOPSIS
face [-i init_file] [-c command_file] [-a alias_file] [filename...] DESCRIPTION
The Framed Access Command Environment Interface (FACE) presents your files and file folders on the screen through a system of menus and forms if you are properly set up as a FACE user. filename must follow the naming convention Menu.xxx for a menu, Form.xxx for a form, and Text.xxx for a text file, where xxx is any string that conforms to the UNIX system file naming conventions. The Form and Menu Language Interpreter (FMLI) descriptor lifetime will be ignored for all frames opened by argument to face. These frames have a lifetime of immortal by default. If filename is not specified on the command line, the FACE Menu will be opened along with those objects specified by the LOGINWIN environment variables. These variables are found in the user's .environ file. OPTIONS
The following options are supported: -a alias_file Alias file -c command_file Command file -i init_file Initial file OPERANDS
The following operand is supported: filename The full pathname of the file describing the object to be opened initially. EXIT STATUS
The face command will return a non-zero exit value if the user is not properly set up as a FACE user. FILES
$HOME/pref/.environ ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWfac | +-----------------------------+-----------------------------+ SEE ALSO
env(1), attributes(5) SunOS 5.10 5 Jul 1990 face(1)
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