CPSubsystemConfig (Hazelcast Root 3.12.12 API)

java.lang.Object
- com.hazelcast.config.cp.CPSubsystemConfig

public class CPSubsystemConfig
extends Object

Contains configuration options for the CPSubsystem.

You can check the following code snippet to see how the CPSubsystem can be initialized by configuring only the setCPMemberCount(int) value. In this code, we set 3 to setCPMemberCount(int), and we don't set any value to setGroupSize(int). Therefore, there will be 3 CP members in the CP subsystem and each CP groups will have 3 CP members as well.

     int cpMemberCount = 3;
     int apMemberCount = 2;
     int memberCount = cpMemberCount + apMemberCount;
     Config config = new Config();
     config.getCPSubsystemConfig().setCPMemberCount(cpMemberCount);
     HazelcastInstance[] instances = new HazelcastInstance[memberCount];
     for (int i = 0; i < memberCount; i++) {
         instances[i] = Hazelcast.newHazelcastInstance(config);
     }

     // update an atomic long via a CP member
     IAtomicLong cpLong = instances[0].getCPSubsystem().getAtomicLong("myLong");
     cpLong.set(10);

     // access to its value via an AP member
     cpLong = instances[cpMemberCount].getCPSubsystem().getAtomicLong("myLong");
     System.out.println(cpLong.get());

In the following code snippet, we configure setCPMemberCount(int) to 5 and setGroupSize(int) to 3, therefore there will be 5 CP members and CP groups will be initialized by selecting 3 random CP members among them.

     int cpMemberCount = 5;
     int apMemberCount = 2;
     int groupSize = 3;
     int memberCount = cpMemberCount + apMemberCount;
     Config config = new Config();
     config.getCPSubsystemConfig()
           .setCPMemberCount(cpMemberCount)
           .setGroupSize(groupSize);
     HazelcastInstance[] instances = new HazelcastInstance[memberCount];
     for (int i = 0; i < memberCount; i++) {
         instances[i] = Hazelcast.newHazelcastInstance(config);
     }

     // update an atomic long via a CP member
     IAtomicLong cpLong = instances[0].getCPSubsystem().getAtomicLong("myLong");
     cpLong.set(10);

     // access to its value via an AP member
     cpLong = instances[cpMemberCount].getCPSubsystem().getAtomicLong("myLong");
     System.out.println(cpLong.get());

See Also:: CPSubsystem, CPMember, CPSession

Field Summary

Fields
Modifier and Type	Field and Description
`static int`	`DEFAULT_HEARTBEAT_INTERVAL_SECONDS` Default value of interval for the periodically-committed CP session heartbeats.
`static int`	`DEFAULT_MISSING_CP_MEMBER_AUTO_REMOVAL_SECONDS` Default duration to wait before automatically removing a missing CP member from the CP subsystem.
`static int`	`DEFAULT_SESSION_TTL_SECONDS` Default value for a CP session to be kept alive after the last heartbeat it has received.
`static int`	`MAX_GROUP_SIZE` Maximum number of CP members for CP groups.
`static int`	`MIN_GROUP_SIZE` Minimum number of CP members for CP groups.

Constructor Summary

Constructors
Constructor and Description

CPSubsystemConfig()

CPSubsystemConfig(CPSubsystemConfig config)

Constructors
Constructor and Description
`CPSubsystemConfig()`
`CPSubsystemConfig(CPSubsystemConfig config)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`CPSubsystemConfig`	`addLockConfig(FencedLockConfig lockConfig)` Adds the `FencedLock` configuration.
`CPSubsystemConfig`	`addSemaphoreConfig(CPSemaphoreConfig cpSemaphoreConfig)` Adds the CP `ISemaphore` configuration.
`FencedLockConfig`	`findLockConfig(String name)` Returns the `FencedLock` configuration for the given name.
`CPSemaphoreConfig`	`findSemaphoreConfig(String name)` Returns the CP `ISemaphore` configuration for the given name.
`int`	`getCPMemberCount()` Returns the number of CP members that will initialize the CP subsystem.
`int`	`getGroupSize()` Returns number of CP members that each CP group will consist of Returns 0 if CP member count is 0.
`Map<String,FencedLockConfig>`	`getLockConfigs()` Returns the map of `FencedLock` configurations
`int`	`getMissingCPMemberAutoRemovalSeconds()` Returns duration to wait before automatically removing a missing CP member from the CP subsystem
`RaftAlgorithmConfig`	`getRaftAlgorithmConfig()` Returns configuration options for Hazelcast's Raft consensus algorithm implementation
`Map<String,CPSemaphoreConfig>`	`getSemaphoreConfigs()` Returns the map of CP `ISemaphore` configurations
`int`	`getSessionHeartbeatIntervalSeconds()` Returns interval for the periodically-committed CP session heartbeats
`int`	`getSessionTimeToLiveSeconds()` Returns duration for a CP session to be kept alive after the last heartbeat
`boolean`	`isFailOnIndeterminateOperationState()` Returns the value to determine if CP API calls will fail when result of a replicated operation becomes indeterminate
`CPSubsystemConfig`	`setCPMemberCount(int cpMemberCount)` Sets the CP member count.
`CPSubsystemConfig`	`setFailOnIndeterminateOperationState(boolean failOnIndeterminateOperationState)` Sets the value to determine if CP API calls will fail when result of a replicated operation becomes indeterminate
`CPSubsystemConfig`	`setGroupSize(int groupSize)` Sets group size.
`CPSubsystemConfig`	`setLockConfigs(Map<String,FencedLockConfig> lockConfigs)` Sets the map of `FencedLock` configurations, mapped by config name.
`CPSubsystemConfig`	`setMissingCPMemberAutoRemovalSeconds(int missingCPMemberAutoRemovalSeconds)` Sets duration to wait before automatically removing a missing CP member from the CP subsystem
`CPSubsystemConfig`	`setRaftAlgorithmConfig(RaftAlgorithmConfig raftAlgorithmConfig)` Sets configuration options for Hazelcast's Raft consensus algorithm implementation
`CPSubsystemConfig`	`setSemaphoreConfigs(Map<String,CPSemaphoreConfig> cpSemaphoreConfigs)` Sets the map of CP `ISemaphore` configurations, mapped by config name.
`CPSubsystemConfig`	`setSessionHeartbeatIntervalSeconds(int sessionHeartbeatIntervalSeconds)` Sets interval for the periodically-committed CP session heartbeats
`CPSubsystemConfig`	`setSessionTimeToLiveSeconds(int sessionTimeToLiveSeconds)` Sets duration for a CP session to be kept alive after the last heartbeat
`String`	`toString()`

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

- Field Detail
  - DEFAULT_SESSION_TTL_SECONDS
```
public static final int DEFAULT_SESSION_TTL_SECONDS
```
    Default value for a CP session to be kept alive after the last heartbeat it has received. See sessionTimeToLiveSeconds
  - DEFAULT_HEARTBEAT_INTERVAL_SECONDS
```
public static final int DEFAULT_HEARTBEAT_INTERVAL_SECONDS
```
    Default value of interval for the periodically-committed CP session heartbeats. See sessionHeartbeatIntervalSeconds
    
    See Also:
    
    Constant Field Values
  - MIN_GROUP_SIZE
```
public static final int MIN_GROUP_SIZE
```
    Minimum number of CP members for CP groups. If set, cpMemberCount and groupSize cannot be smaller than this value. See cpMemberCount and groupSize.
    
    See Also:
    
    Constant Field Values
  - MAX_GROUP_SIZE
```
public static final int MAX_GROUP_SIZE
```
    Maximum number of CP members for CP groups. If set, groupSize cannot be larger than this value. See groupSize.
    
    See Also:
    
    Constant Field Values
  - DEFAULT_MISSING_CP_MEMBER_AUTO_REMOVAL_SECONDS
```
public static final int DEFAULT_MISSING_CP_MEMBER_AUTO_REMOVAL_SECONDS
```
    Default duration to wait before automatically removing a missing CP member from the CP subsystem. See missingCPMemberAutoRemovalSeconds
- Constructor Detail
  - CPSubsystemConfig
```
public CPSubsystemConfig()
```
  - CPSubsystemConfig
```
public CPSubsystemConfig(CPSubsystemConfig config)
```
- Method Detail
  - getCPMemberCount
```
public int getCPMemberCount()
```
    Returns the number of CP members that will initialize the CP subsystem. The CP subsystem is disabled if 0.
    
    Returns:
    
    the number of CP members that will initialize the CP subsystem
  - setCPMemberCount
```
public CPSubsystemConfig setCPMemberCount(int cpMemberCount)
```
    Sets the CP member count. The CP subsystem is disabled if 0. Cannot be smaller than MIN_GROUP_SIZE and groupSize
    
    Returns:
    
    this config instance
  - getGroupSize
```
public int getGroupSize()
```
    Returns number of CP members that each CP group will consist of Returns 0 if CP member count is 0. If group size is not set: - returns CP member count if it is an odd number - returns CP member count - 1 if it is an even number
    
    Returns:
    
    number of CP members that each CP group will consist of
  - setGroupSize
```
public CPSubsystemConfig setGroupSize(int groupSize)
```
    Sets group size. Must be an odd number between MIN_GROUP_SIZE and MAX_GROUP_SIZE.
    
    Returns:
    
    this config instance
  - getSessionTimeToLiveSeconds
```
public int getSessionTimeToLiveSeconds()
```
    Returns duration for a CP session to be kept alive after the last heartbeat
    
    Returns:
    
    duration for a CP session to be kept alive after the last heartbeat
  - setSessionTimeToLiveSeconds
```
public CPSubsystemConfig setSessionTimeToLiveSeconds(int sessionTimeToLiveSeconds)
```
    Sets duration for a CP session to be kept alive after the last heartbeat
    
    Returns:
    
    this config instance
  - getSessionHeartbeatIntervalSeconds
```
public int getSessionHeartbeatIntervalSeconds()
```
    Returns interval for the periodically-committed CP session heartbeats
    
    Returns:
    
    interval for the periodically-committed CP session heartbeats
  - setSessionHeartbeatIntervalSeconds
```
public CPSubsystemConfig setSessionHeartbeatIntervalSeconds(int sessionHeartbeatIntervalSeconds)
```
    Sets interval for the periodically-committed CP session heartbeats
    
    Returns:
    
    this config instance
  - getMissingCPMemberAutoRemovalSeconds
```
public int getMissingCPMemberAutoRemovalSeconds()
```
    Returns duration to wait before automatically removing a missing CP member from the CP subsystem
    
    Returns:
    
    duration to wait before automatically removing a missing CP member from the CP subsystem
  - setMissingCPMemberAutoRemovalSeconds
```
public CPSubsystemConfig setMissingCPMemberAutoRemovalSeconds(int missingCPMemberAutoRemovalSeconds)
```
    Sets duration to wait before automatically removing a missing CP member from the CP subsystem
    
    Returns:
    
    this config instance
  - isFailOnIndeterminateOperationState
```
public boolean isFailOnIndeterminateOperationState()
```
    Returns the value to determine if CP API calls will fail when result of a replicated operation becomes indeterminate
    
    Returns:
    
    the value to determine if CP API calls will fail when result of a replicated operation becomes indeterminate
  - setFailOnIndeterminateOperationState
```
public CPSubsystemConfig setFailOnIndeterminateOperationState(boolean failOnIndeterminateOperationState)
```
    Sets the value to determine if CP API calls will fail when result of a replicated operation becomes indeterminate
    
    Returns:
    
    this config instance
  - getRaftAlgorithmConfig
```
public RaftAlgorithmConfig getRaftAlgorithmConfig()
```
    Returns configuration options for Hazelcast's Raft consensus algorithm implementation
    
    Returns:
    
    configuration options for Hazelcast's Raft consensus algorithm implementation
  - setRaftAlgorithmConfig
```
public CPSubsystemConfig setRaftAlgorithmConfig(RaftAlgorithmConfig raftAlgorithmConfig)
```
    Sets configuration options for Hazelcast's Raft consensus algorithm implementation
    
    Returns:
    
    this config instance
  - getSemaphoreConfigs
```
public Map<String,CPSemaphoreConfig> getSemaphoreConfigs()
```
    Returns the map of CP ISemaphore configurations
    
    Returns:
    
    the map of CP ISemaphore configurations
  - findSemaphoreConfig
```
public CPSemaphoreConfig findSemaphoreConfig(String name)
```
    Returns the CP ISemaphore configuration for the given name.
    The name is matched by stripping the CPGroup name from the given name if present. Returns null if there is no config found by the given name
    
    Parameters:
    
    name - name of the CP ISemaphore
    
    Returns:
    
    the CP ISemaphore configuration
  - addSemaphoreConfig
```
public CPSubsystemConfig addSemaphoreConfig(CPSemaphoreConfig cpSemaphoreConfig)
```
    Adds the CP ISemaphore configuration. Name of the CP ISemaphore could optionally contain a CPGroup name, like "mySemaphore@group1".
    
    Parameters:
    
    cpSemaphoreConfig - the CP ISemaphore configuration
    
    Returns:
    
    this config instance
  - setSemaphoreConfigs
```
public CPSubsystemConfig setSemaphoreConfigs(Map<String,CPSemaphoreConfig> cpSemaphoreConfigs)
```
    Sets the map of CP ISemaphore configurations, mapped by config name. Names could optionally contain a CPGroup name, such as "mySemaphore@group1".
    
    Parameters:
    
    cpSemaphoreConfigs - the CP ISemaphore config map to set
    
    Returns:
    
    this config instance
  - getLockConfigs
```
public Map<String,FencedLockConfig> getLockConfigs()
```
    Returns the map of FencedLock configurations
    
    Returns:
    
    the map of FencedLock configurations
  - findLockConfig
```
public FencedLockConfig findLockConfig(String name)
```
    Returns the FencedLock configuration for the given name.
    The name is matched by stripping the CPGroup name from the given name if present. Returns null if there is no config found by the given name
    
    Parameters:
    
    name - name of the FencedLock
    
    Returns:
    
    the FencedLock configuration
  - addLockConfig
```
public CPSubsystemConfig addLockConfig(FencedLockConfig lockConfig)
```
    Adds the FencedLock configuration. Name of the FencedLock could optionally contain a CPGroup name, like "myLock@group1".
    
    Parameters:
    
    lockConfig - the FencedLock configuration
    
    Returns:
    
    this config instance
  - setLockConfigs
```
public CPSubsystemConfig setLockConfigs(Map<String,FencedLockConfig> lockConfigs)
```
    Sets the map of FencedLock configurations, mapped by config name. Names could optionally contain a CPGroup name, such as "myLock@group1".
    
    Parameters:
    
    lockConfigs - the FencedLock config map to set
    
    Returns:
    
    this config instance
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object

Class CPSubsystemConfig

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

DEFAULT_SESSION_TTL_SECONDS

DEFAULT_HEARTBEAT_INTERVAL_SECONDS

MIN_GROUP_SIZE

MAX_GROUP_SIZE

DEFAULT_MISSING_CP_MEMBER_AUTO_REMOVAL_SECONDS

Constructor Detail

CPSubsystemConfig

CPSubsystemConfig

Method Detail

getCPMemberCount

setCPMemberCount

getGroupSize

setGroupSize

getSessionTimeToLiveSeconds

setSessionTimeToLiveSeconds

getSessionHeartbeatIntervalSeconds

setSessionHeartbeatIntervalSeconds

getMissingCPMemberAutoRemovalSeconds

setMissingCPMemberAutoRemovalSeconds

isFailOnIndeterminateOperationState

setFailOnIndeterminateOperationState

getRaftAlgorithmConfig

setRaftAlgorithmConfig

getSemaphoreConfigs

findSemaphoreConfig

addSemaphoreConfig

setSemaphoreConfigs

getLockConfigs

findLockConfig

addLockConfig

setLockConfigs

toString