splitBrain

Class CoordSelectionTest

java.lang.Object

splitBrain.SelectionTest

splitBrain.CoordSelectionTest

public class CoordSelectionTest
extends SelectionTest

Test class for serial and concurrent coordinator selection tests

Field Summary

Fields inherited from class splitBrain.SelectionTest

aRegion, changeLimitMS, testInstance, VmIDStr

Constructor Summary

Constructors

Constructor and Description
CoordSelectionTest()

Method Summary

Modifier and Type	Method and Description
protected com.gemstone.gemfire.distributed.DistributedMember	getCurrentMember() Return the current coordinator.
protected int	getNumLocators() Return the number of locators.
protected int	getNumMembersOfInterest() Return the total number of coordinators
protected int	getNumToStop() Return the appropriate number of locators to stop.
static void	HydraTask_busyClient() Keep a client busy with puts.
static void	HydraTask_concCoordSelectionTest() Hydra task for concurrent coordinator selection test.
static void	HydraTask_initializeClient() Creates and initializes the singleton instance of CoordSelectionTest in this VM and initializes a region.
static void	HydraTask_initializeLocator() Creates and initializes the singleton instance of CoordSelectionTest in this VM.
static void	HydraTask_serialCoordSelectionTest() Hydra task for serial coordinator selection test.
protected void	serialVerifyAfterStop(com.gemstone.gemfire.distributed.DistributedMember currentCoord, int totalNumStopped) In a serial test, do verification after stopping a coordinator.
protected Object[]	waitForChange(com.gemstone.gemfire.distributed.DistributedMember member, int msToSleep) Given a member, wait for the coordinator to become different than the given member.

Methods inherited from class splitBrain.SelectionTest

concSelectionTest, HydraTask_logMembers, initializeInstance, initializeRegion, serialSelectionTest, verifyMemberExists, waitForChangeWithTimeout

Methods inherited from class java.lang.Object

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

Constructor Detail

CoordSelectionTest

public CoordSelectionTest()

Method Detail

HydraTask_initializeLocator

public static void HydraTask_initializeLocator()

Creates and initializes the singleton instance of CoordSelectionTest in this VM.

HydraTask_initializeClient

public static void HydraTask_initializeClient()

Creates and initializes the singleton instance of CoordSelectionTest in this VM and initializes a region.

HydraTask_serialCoordSelectionTest

public static void HydraTask_serialCoordSelectionTest()

Hydra task for serial coordinator selection test.

HydraTask_concCoordSelectionTest

public static void HydraTask_concCoordSelectionTest()

Hydra task for concurrent coordinator selection test.

HydraTask_busyClient

public static void HydraTask_busyClient()

Keep a client busy with puts. We should not become disconnected from the DS (the puts should always succeed).

waitForChange

protected Object[] waitForChange(com.gemstone.gemfire.distributed.DistributedMember member,
                                 int msToSleep)

Given a member, wait for the coordinator to become different than the given member.

Specified by:

waitForChange in class SelectionTest

Parameters:

member - A distributed member or null. This method waits until the current coordinator is different than this one.

msToSleep - The number of millis to sleep between checks for the coordinator.

Returns:

[0] (Long) The number of millseconds it took to detect a coordinator change. Note that the value of msToSleep can affect this value. [1] (DistributedMember) The new DistributedMember

getNumToStop

protected int getNumToStop()

Return the appropriate number of locators to stop. Always make sure there is one locator present.

Specified by:

getNumToStop in class SelectionTest

serialVerifyAfterStop

protected void serialVerifyAfterStop(com.gemstone.gemfire.distributed.DistributedMember currentCoord,
                                     int totalNumStopped)

In a serial test, do verification after stopping a coordinator.

Specified by:

serialVerifyAfterStop in class SelectionTest

Parameters:

currentCoord - The current coordinator.

totalNumStopped - The total number of members stopped (and not yet restarted).

getCurrentMember

protected com.gemstone.gemfire.distributed.DistributedMember getCurrentMember()

Return the current coordinator.

Specified by:

getCurrentMember in class SelectionTest

getNumMembersOfInterest

protected int getNumMembersOfInterest()

Return the total number of coordinators

Specified by:

getNumMembersOfInterest in class SelectionTest

getNumLocators

protected int getNumLocators()

Return the number of locators.