voldemort.cluster.failuredetector
Interface StoreVerifier

All Known Implementing Classes:

BasicStoreVerifier, ClientStoreVerifier, ServerStoreVerifier

public interface StoreVerifier

A StoreVerifier is used to test a Store given a Node. The act of testing a store for a given node is not the same depending on your environment (in the server itself, on a client (and even further it depends on what transport is used for connecting to the server), unit tests, etc.). This helps to extract away the differences.

This is used by some FailureDetector implementations to attempt contact with the node before marking said node as available.

Field Summary

static ByteArray

KEY

Method Summary

void	flushCachedStores() Flushes the cached stores if any
void	verifyStore(Node node) Verifies the ability to connect to a Store for this node.

Field Detail

KEY

static final ByteArray KEY

Method Detail

verifyStore

void verifyStore(Node node)
                 throws UnreachableStoreException,
                        VoldemortException

Verifies the ability to connect to a Store for this node.

Parameters:

node - Node to test

Throws:

UnreachableStoreException

VoldemortException

flushCachedStores

void flushCachedStores()

Flushes the cached stores if any