MembershipTest (GemFire XD Java API Documentation)

java.lang.Object
- membership.MembershipTest

```
public class MembershipTest
extends Object
```
A Hydra test that kills, starts, disconnects, connects members of the distributed system. It uses the MembershipBB to keep track of the members of the distributed system according to the test.

Since:

5.0

See Also:

MemberPrms

Field Summary

Fields
Modifier and Type Field and Description

protected static MembershipTest memberTest

Fields
Modifier and Type	Field and Description
`protected static MembershipTest`	`memberTest`

Constructor Summary

Constructors
Constructor and Description

MembershipTest()

Constructors
Constructor and Description
`MembershipTest()`

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`protected void`	`closeCache()` Closes the cache and optionally re-opens
`protected void`	`disconnect()` Disconnects the current VM from the distributed system.
`void`	`disruptMember()` Disrupts members of the distributed system (kills, kills/restarts, closes cache, disconnects/reconnects) and then checks for system membership update.
`void`	`disruptOther()` Kills another member of the distributed system.
`static void`	`HydraTask_closeCache()` A Hydra task that closes the cache and optionally re-connects
`static void`	`HydraTask_disconnect()` A Hydra task that disconnects the current VM from the distributed system.
`static void`	`HydraTask_disruptMember()` A Hydra task that disrupts members of the distributed system (kills/restarts, disconnects/reconnects)
`static void`	`HydraTask_disruptOther()` A Hydra task that selects and kills another members of the distributed system
`static void`	`HydraTask_initForRestart()` Hydra task for test initialization upon dynamic restart of VM
`static void`	`HydraTask_initialize()` Hydra task for test initialization.
`static void`	`HydraTask_killVm()` A Hydra task that selects and kills another member of the distributed system
`static void`	`HydraTask_stopSelf()` A Hydra task that kills/restarts the current logical VM
`static void`	`HydraTask_verifyMembership()` Hydra task which verifies members of the distributed system (per GemFire) match members per the test/
`static void`	`HydraTask_verifyMembershipAfterChange()` Waits until no membership change in progress and then proceeds to verify membership
`protected void`	`initForRestart()` Calls initialize to add member info to blackboard and then updates blackboard to indicated member change no longer in progress.
`protected void`	`initialize()` Records vmid and pid of client in the blackboard shared map, connects to distributed system.
`void`	`killVm()` Kills a client VM other than the current one.
`void`	`printMemberInfo()` Prints member pids, vm kind for GemFire members, View members
`protected void`	`stopSelf()` Kills logical VM with immediate restart requested.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - memberTest
```
protected static MembershipTest memberTest
```
- Constructor Detail
  - MembershipTest
```
public MembershipTest()
```
- Method Detail
  - HydraTask_initialize
```
public static void HydraTask_initialize()
```
    Hydra task for test initialization.
    
    Since:
    
    5.0
  - initialize
```
protected void initialize()
```
    Records vmid and pid of client in the blackboard shared map, connects to distributed system.
    
    Since:
    
    5.0
  - HydraTask_initForRestart
```
public static void HydraTask_initForRestart()
```
    Hydra task for test initialization upon dynamic restart of VM
    
    Since:
    
    5.0
  - initForRestart
```
protected void initForRestart()
```
    Calls initialize to add member info to blackboard and then updates blackboard to indicated member change no longer in progress.
    
    Since:
    
    5.0
  - HydraTask_disruptMember
```
public static void HydraTask_disruptMember()
```
    A Hydra task that disrupts members of the distributed system (kills/restarts, disconnects/reconnects)
    
    Since:
    
    5.0
  - disruptMember
```
public void disruptMember()
```
    Disrupts members of the distributed system (kills, kills/restarts, closes cache, disconnects/reconnects) and then checks for system membership update.
    
    Since:
    
    5.0
  - HydraTask_disruptOther
```
public static void HydraTask_disruptOther()
```
    A Hydra task that selects and kills another members of the distributed system
    
    Since:
    
    5.0
  - disruptOther
```
public void disruptOther()
```
    Kills another member of the distributed system. Verifies member departed. Starts new member. Verifies new member is part of distributed system.
    
    Since:
    
    5.0
  - HydraTask_killVm
```
public static void HydraTask_killVm()
```
    A Hydra task that selects and kills another member of the distributed system
    
    Since:
    
    5.0
  - killVm
```
public void killVm()
```
    Kills a client VM other than the current one. Starts new member.
    
    Since:
    
    5.0
  - HydraTask_stopSelf
```
public static void HydraTask_stopSelf()
```
    A Hydra task that kills/restarts the current logical VM
    
    Since:
    
    5.0
  - stopSelf
```
protected void stopSelf()
```
    Kills logical VM with immediate restart requested. GemFire should see restarted logical vm as a client as a member joining.
    
    Since:
    
    5.0
  - HydraTask_closeCache
```
public static void HydraTask_closeCache()
```
    A Hydra task that closes the cache and optionally re-connects
    
    Since:
    
    5.0
  - closeCache
```
protected void closeCache()
```
    Closes the cache and optionally re-opens
    
    Since:
    
    5.0
  - HydraTask_disconnect
```
public static void HydraTask_disconnect()
```
    A Hydra task that disconnects the current VM from the distributed system.
    
    Since:
    
    5.0
  - disconnect
```
protected void disconnect()
```
    Disconnects the current VM from the distributed system.
    
    Since:
    
    5.0
  - HydraTask_verifyMembership
```
public static void HydraTask_verifyMembership()
```
    Hydra task which verifies members of the distributed system (per GemFire) match members per the test/
    
    Since:
    
    5.0
  - HydraTask_verifyMembershipAfterChange
```
public static void HydraTask_verifyMembershipAfterChange()
```
    Waits until no membership change in progress and then proceeds to verify membership
    
    Since:
    
    5.0
  - printMemberInfo
```
public void printMemberInfo()
```
    Prints member pids, vm kind for GemFire members, View members
    
    Since:
    
    5.0

Class MembershipTest

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

memberTest

Constructor Detail

MembershipTest

Method Detail

HydraTask_initialize

initialize

HydraTask_initForRestart

initForRestart

HydraTask_disruptMember

disruptMember

HydraTask_disruptOther

disruptOther

HydraTask_killVm

killVm

HydraTask_stopSelf

stopSelf

HydraTask_closeCache

closeCache

HydraTask_disconnect

disconnect

HydraTask_verifyMembership

HydraTask_verifyMembershipAfterChange

printMemberInfo