splitBrain

Class SelectionTest

java.lang.Object

splitBrain.SelectionTest

Direct Known Subclasses:

CoordSelectionTest, LeadSelectionTest

public abstract class SelectionTest
extends Object

Test class for serial and concurrent member selection tests (tests that select new lead members or new coordinators).

Field Summary

Fields

Modifier and Type	Field and Description
protected com.gemstone.gemfire.cache.Region	aRegion
protected long	changeLimitMS
protected static SelectionTest	testInstance
protected static String	VmIDStr

Constructor Summary

Constructors

Constructor and Description
SelectionTest()

Method Summary

Modifier and Type	Method and Description
protected void	concSelectionTest(String matchStr) Concurrent selection test.
protected abstract com.gemstone.gemfire.distributed.DistributedMember	getCurrentMember()
protected abstract int	getNumMembersOfInterest()
protected abstract int	getNumToStop()
static void	HydraTask_logMembers() Log the current lead member and coordinator.
protected void	initializeInstance() Initialize the test instance.
protected void	initializeRegion(String regDescriptName) Create a region with the given region description name.
protected void	serialSelectionTest() Serial selection test.
protected abstract void	serialVerifyAfterStop(com.gemstone.gemfire.distributed.DistributedMember member, int totalNumStopped)
protected void	verifyMemberExists(com.gemstone.gemfire.distributed.DistributedMember member) Verify that the given member exists.
protected abstract Object[]	waitForChange(com.gemstone.gemfire.distributed.DistributedMember member, int msToSleep)
protected com.gemstone.gemfire.distributed.DistributedMember	waitForChangeWithTimeout(com.gemstone.gemfire.distributed.DistributedMember member) Wait for a member change.

Methods inherited from class java.lang.Object

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

Field Detail

testInstance

protected static SelectionTest testInstance

VmIDStr

protected static final String VmIDStr

See Also:

Constant Field Values

aRegion

protected com.gemstone.gemfire.cache.Region aRegion

changeLimitMS

protected long changeLimitMS

Constructor Detail

SelectionTest

public SelectionTest()

Method Detail

waitForChange

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

getNumMembersOfInterest

protected abstract int getNumMembersOfInterest()

getNumToStop

protected abstract int getNumToStop()

serialVerifyAfterStop

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

getCurrentMember

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

HydraTask_logMembers

public static void HydraTask_logMembers()

Log the current lead member and coordinator.

initializeRegion

protected void initializeRegion(String regDescriptName)

Create a region with the given region description name.

Parameters:

regDescriptName - The name of a region description.

initializeInstance

protected void initializeInstance()

Initialize the test instance.

serialSelectionTest

protected void serialSelectionTest()

Serial selection test. Find the appropriate member, stop it, wait for a new member to be chosen. Repeat this until all members have been stopped. Restart all members and wait for a member to be chosen.

concSelectionTest

protected void concSelectionTest(String matchStr)

Concurrent selection test. Concurrently stop and restart any number of client VMs, then verify the current member.

Parameters:

matchStr - The members to stop must contain this String in their name.

waitForChangeWithTimeout

protected com.gemstone.gemfire.distributed.DistributedMember waitForChangeWithTimeout(com.gemstone.gemfire.distributed.DistributedMember member)

Wait for a member change. If it takes more than changeLimitMS for the change to occur, throw a TestException.

Parameters:

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

Returns:

The new member.

verifyMemberExists

protected void verifyMemberExists(com.gemstone.gemfire.distributed.DistributedMember member)

Verify that the given member exists.