Setup and Install

Configuring HP WebQoS
Modifying Configuration Files Before Start-Up
Chapter 3 31
then the default value is 2048.
The maximum number of connections that are polled or checked for
data. This parameter prevents connections with no data from using
too many file descriptors. HP recommends that this value be a
percentage of the maxfiles kernel parameter.
• NoDataConnectionTimeout - Default: 30 seconds
The amount of time, in seconds, to wait before closing a connection
without data.
If no data is received for a connection in this amount of time, the
connection is closed.
• PollThreadSleepTime - Default: 100 milliseconds
The amount of time, in milliseconds, to wait before checking if any
data has arrived.
If a connection with no data is received, then wait for this amount of
time before checking the connection for the arrival of data.
The total number of times the connection is checked for data during
the NoDataConnectionTimeout time is calculated by dividing
NoDataConnectionTimeout by this value. For example, using the
default values, the connection with no data is checked for data 300
times (30 seconds/100 milliseconds) in a 30 second period.
• WaterMarkForNoDataConn - Default: 95% of MaxPollDescriptors
When MaxPollDescriptors is reached, an event is sent indicating
that there are too many connections with no data. When the total
number of file descriptors falls below this percentage of
MaxPollDescriptors, another event is sent indicating that the
number of connections with no data is at an acceptable level.
Logging and Tracing Parameters
The following parameters affect the amount of information written to the
logging and tracing files.
• LOGLEVEL - Default: 3 (informative logging)
The amount of logging information that is written to the files
/var/opt/webqos/logs/qoslog and
/var/opt/webqos/logs/acclog. Logging values are:
0 - None