Coyote Point Systems E350GX, Руководство по установке и администрированию

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Chapter 7: Monitoring Equalizer Operation
198 Equalizer Installation and Administration Guide
4. Use the slider controls to select the following:
5. The plot display is updated automatically with your settings the next time the display is refreshed.
Exporting Usage Statistics
You can export usage statistics, including the data collected for plotting cluster and server histories, to a comma
separated value (
.csv ) file that can be opened in any program (such as Excel) that accepts comma separated data as
input. The data is exported to the browser in a file with the default name export.csv . All available statistical data is
exported for the time period selected. To export usage statistics:
1. Select
Equalizer > Monitoring > Export to CSV
.
2. Select the
time period
for which you want to export the data from the drop-down box.
3. Select
export
to download the file for saving via your browser.
The amount of data (and hence the size of the export file) is limited by the number of clusters, servers, and match
rules in your configuration as well as available disk space. Each cluster, server, and match rule occupies one column
for each of the statistics shown in the table below. If you have a large number of columns, this will limit the number
of data samples (rows) that can be stored on disk for export. The following statistics are reported in the exported file,
with one row for every five seconds in the selected
time period
:
No Agent Response
The number of requests in which an agent failed to reply to
Equalizer’s probes.
Resource Down
The number of times that the target resource failed to respond during
the period plotted.
Default Chosen
The number of times the default site was chosen in response to a
client query.
Agent Errors
The number of ICMP ECHO requests that the agent at this site sent to
clients and for which the agent received no response.
Resource Performance
The relative workload of this site during the plotted period.
Refresh Rate The amount of time between updates of the plot data.
Duration
The time interval displayed in the plot. Sets the horizontal time
scale for the plot. For example, if
5 mins
is selected, all the data
collected over the last 5 minutes is displayed in the plot.
For each Cluster:
Delay
The average service time of all of the active servers in the
cluster. The service time is the time it takes a server to
start sending reply packets once it receives a client
request. Initialized to 0 when the system boots. By design,
when a server with a non-zero delay transitions to having
no active connections for some period of time, Equalizer
stops adjusting the delay and continues using the last
delay value in load balancing decisions. This is why
sometimes the delay is not equal to 0 when there are no
active connections to the server.