org.apache.ignite.internal.processors.segmentation

Interface GridSegmentationProcessor

All Superinterfaces:

GridComponent, GridProcessor

All Known Implementing Classes:

GridOsSegmentationProcessor

public interface GridSegmentationProcessor
extends GridProcessor

Kernal processor responsible for checking network segmentation issues.

Segment checks are performed by segmentation resolvers Each segmentation resolver checks segment for validity, using its inner logic. Typically, resolver should run light-weight single check (i.e. one IP address or one shared folder). Compound segment checks may be performed using several resolvers.

See Also:

IgniteConfiguration.getSegmentationResolvers(), IgniteConfiguration.getSegmentationPolicy(), IgniteConfiguration.getSegmentCheckFrequency(), IgniteConfiguration.isAllSegmentationResolversPassRequired(), IgniteConfiguration.isWaitForSegmentOnStart()

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.ignite.internal.GridComponent

GridComponent.DiscoveryDataExchangeType

Method Summary

Methods

Modifier and Type	Method and Description
boolean	isValidSegment() Performs network segment check.

Methods inherited from interface org.apache.ignite.internal.GridComponent

collectDiscoveryData, discoveryDataType, onDisconnected, onDiscoveryDataReceived, onKernalStart, onKernalStop, onReconnected, printMemoryStats, start, stop, validateNode

Method Detail

isValidSegment

boolean isValidSegment()

Performs network segment check.

This method is called by discovery manager in the following cases:

1. Before discovery SPI start.
2. When other node leaves topology.
3. When other node in topology fails.
4. Periodically (see IgniteConfiguration.getSegmentCheckFrequency()).

Returns:

True if segment is correct.