com.hazelcast.internal.diagnostics

Class NetworkingImbalancePlugin

java.lang.Object

com.hazelcast.internal.diagnostics.DiagnosticsPlugin

com.hazelcast.internal.diagnostics.NetworkingImbalancePlugin

public class NetworkingImbalancePlugin
extends DiagnosticsPlugin

The NetworkingImbalancePlugin is an experimental plugin meant for detecting imbalance in the IO system.

This plugin will probably mostly be used for internal purposes to get a better understanding of imbalances. Normally imbalances are taken care of by the IOBalancer; but we need to make sure it makes the right choice.

This plugin can be used on server and client side.

Field Summary

Fields

Modifier and Type	Field and Description
static HazelcastProperty	PERIOD_SECONDS The period in seconds this plugin runs.

Fields inherited from class com.hazelcast.internal.diagnostics.DiagnosticsPlugin

logger

Constructor Summary

Constructors

Constructor and Description
NetworkingImbalancePlugin(HazelcastProperties properties, EventLoopGroup eventLoopGroup, ILogger logger)
NetworkingImbalancePlugin(NodeEngineImpl nodeEngine)

Method Summary

Modifier and Type	Method and Description
long	getPeriodMillis() Returns the period of executing the monitor in millis.
void	onStart()
void	run(DiagnosticsLogWriter writer)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

PERIOD_SECONDS

public static final HazelcastProperty PERIOD_SECONDS

The period in seconds this plugin runs.

If set to 0, the plugin is disabled.

Constructor Detail

NetworkingImbalancePlugin

public NetworkingImbalancePlugin(NodeEngineImpl nodeEngine)

NetworkingImbalancePlugin

public NetworkingImbalancePlugin(HazelcastProperties properties,
                                 EventLoopGroup eventLoopGroup,
                                 ILogger logger)

Method Detail

getPeriodMillis

public long getPeriodMillis()

Description copied from class: DiagnosticsPlugin

Returns the period of executing the monitor in millis.

If a monitor is disabled, 0 is returned.

If a monitor should run only once, a negative value is returned. This is useful for 'static' monitors like the SystemPropertiesPlugin that run at the beginning of a log file but their contents will not change.

Specified by:

getPeriodMillis in class DiagnosticsPlugin

Returns:

the period in millis.

onStart

public void onStart()

Specified by:

onStart in class DiagnosticsPlugin

run

public void run(DiagnosticsLogWriter writer)

Specified by:

run in class DiagnosticsPlugin