Coyote Point Systems Equalizer Spezifikationen PDF herunterladen (Seite 378)

Server Health Check Probes

Simple Health Check Probes

Simple health checks allow you to configure Equalizer to probe a specified target and retrieve a "load" value from

the target which describes its current level of load.

A user-supplied "server agent" must be running at the target, which supplies a load value in response to a simple

health check query from the Equalizer with a load value. This information is obtained by the server agent by any

means available at the target server. The only requirement from Equalizer's perspective is that the server agent's

response must be in the form of a single integer or floating point value. The server agent may either return the load

value immediately upon accepting a connection on the configured port, or it may require a stimulus string before

returning the value. After returning the value, the server agent closes the connection and waits for another

connection.

Configuring Simple Health Check Probe Parameters

Simple Health check probe parameters are configured on server pools and then must be applied to the server

instances (and thus the servers) within a server pool.

The following is a table of Simple Health Check Parameters.

GUI Parameter (CLI Parameter) Description

Health Check Relative Weight (weight)

Set the relative weight (default: 100) of the health checkload value

returned by the application compared to other health checkvalues

returned by other health checks. The weight must be between 1

and 100.

Lightest Load Value (healthy)

A floating point value that isthe ‘healthiest’ (or least busy) load value

that can be returned by the health checkserver application. For

example: if the application returns a value of -1 to indicate that it is

very lightly loaded, then set healthy to -1. The default healthy value

is 0.000000.

Heaviest Load Value (loaded)

A floating point value that isthe busiest (or most highlyloaded) load

value that can be returned by the health checkserver application for

the health check. For example: if the application returns a value of

10 to indicate that it is very lightlyloaded, then set healthy to 10. The

default loaded value is 100.000000.

Health Check Port (probe_port)

The port number for probing the health checkserver application.

The default port is 1510.

Probe Interval (probe_interval)

The number of seconds (default: 15) Equalizer will wait for a health

check attempt to succeed before marking a server down.

Max Tries Per Interval (probe_maxtries)

The maximum number of health checkconnection attempts per

probe interval before marking a server down.

Probe Global Timeout (probe_gto)

The health checkglobal timeout. The number of seconds (default:

5) Equalizer waits for a connection to the health checkserver

application to complete before marking the server down.

Simple Health Check Parameters

378

1 2 ... 373 374 375 376 377 378 379 380 381 382 383 ... 593 594

Kommentare zu diesen Handbüchern

Keine Kommentare

Coyote Point Systems Equalizer Spezifikationen Seite 378

Kommentare zu diesen Handbüchern

Verwandte Produkte und Handbücher für Audio-Equalizer Coyote Point Systems Equalizer