EventType (Apache HBase 2.3.0 API)

java.lang.Object
- java.lang.Enum<EventType>
- - org.apache.hadoop.hbase.executor.EventType

All Implemented Interfaces:

Serializable, Comparable<EventType>
```
@InterfaceAudience.Private
public enum EventType
extends Enum<EventType>
```
List of all HBase event handler types.
Event types are named by a convention: event type names specify the component from which the event originated and then where its destined -- e.g. RS_ZK_ prefix means the event came from a regionserver destined for zookeeper -- and then what the even is; e.g. REGION_OPENING.
We give the enums indices so we can add types later and keep them grouped together rather than have to add them always to the end as we would have to if we used raw enum ordinals.

Enum Constant Summary

Enum Constants
Enum Constant and Description
`C_M_ADD_FAMILY` Messages originating from Client to Master. C_M_ADD_FAMILY Client asking Master to add family to table.
`C_M_CREATE_TABLE` Messages originating from Client to Master. C_M_CREATE_TABLE Client asking Master to create a table.
`C_M_DELETE_FAMILY` Messages originating from Client to Master. C_M_DELETE_FAMILY Client asking Master to delete family of table.
`C_M_DELETE_TABLE` Messages originating from Client to Master. C_M_DELETE_TABLE Client asking Master to delete a table.
`C_M_DISABLE_TABLE` Messages originating from Client to Master. C_M_DISABLE_TABLE Client asking Master to disable a table.
`C_M_ENABLE_TABLE` Messages originating from Client to Master. C_M_ENABLE_TABLE Client asking Master to enable a table.
`C_M_MERGE_REGION` Messages originating from Client to Master. C_M_MERGE_REGION Client asking Master to merge regions.
`C_M_MODIFY_FAMILY` Messages originating from Client to Master. C_M_MODIFY_FAMILY Client asking Master to modify family of table.
`C_M_MODIFY_TABLE` Messages originating from Client to Master. C_M_MODIFY_TABLE Client asking Master to modify a table.
`C_M_RESTORE_SNAPSHOT` Messages originating from Client to Master. C_M_RESTORE_SNAPSHOT Client asking Master to restore a snapshot.
`C_M_SNAPSHOT_TABLE` Messages originating from Client to Master. C_M_SNAPSHOT_TABLE Client asking Master to snapshot an offline table.
`M_LOG_REPLAY` Master controlled events to be executed on the master. M_LOG_REPLAY Master is processing log replay of failed region server
`M_MASTER_RECOVERY` Master controlled events to be executed on the master. M_MASTER_RECOVERY Master is processing recovery of regions found in ZK RIT
`M_META_SERVER_SHUTDOWN` Master controlled events to be executed on the master. M_META_SERVER_SHUTDOWN Master is processing shutdown of RS hosting a meta region (-ROOT- or hbase:meta).
`M_RS_CLOSE_META` Messages originating from Master to RS. M_RS_CLOSE_META Master asking RS to close meta.
`M_RS_CLOSE_REGION` Messages originating from Master to RS. M_RS_CLOSE_REGION Master asking RS to close a region.
`M_RS_CLOSE_ROOT` Messages originating from Master to RS. M_RS_CLOSE_ROOT Master asking RS to close root.
`M_RS_OPEN_META` Messages originating from Master to RS. M_RS_OPEN_META Master asking RS to open meta.
`M_RS_OPEN_PRIORITY_REGION` Messages originating from Master to RS. M_RS_OPEN_PRIORITY_REGION Master asking RS to open a priority region.
`M_RS_OPEN_REGION` Messages originating from Master to RS. M_RS_OPEN_REGION Master asking RS to open a region.
`M_RS_OPEN_ROOT` Messages originating from Master to RS. M_RS_OPEN_ROOT Master asking RS to open root.
`M_RS_SWITCH_RPC_THROTTLE` Messages originating from Master to RS. M_RS_SWITCH_RPC_THROTTLE Master asking RS to switch rpc throttle state.
`M_SERVER_SHUTDOWN` Master controlled events to be executed on the master M_SERVER_SHUTDOWN Master is processing shutdown of a RS
`M_ZK_REGION_CLOSING` M_ZK_REGION_CLOSING Master adds this region as closing in ZK
`M_ZK_REGION_OFFLINE` M_ZK_REGION_OFFLINE Master adds this region as offline in ZK
`RS_COMPACTED_FILES_DISCHARGER` RS compacted files discharger RS_COMPACTED_FILES_DISCHARGER
`RS_LOG_REPLAY` RS wal recovery work items (splitting wals) to be executed on the RS. RS_LOG_REPLAY
`RS_PARALLEL_SEEK` RS controlled events to be executed on the RS. RS_PARALLEL_SEEK
`RS_REFRESH_PEER` RS refresh peer. RS_REFRESH_PEER
`RS_REGION_REPLICA_FLUSH` RS flush triggering from secondary region replicas to primary region replica.
`RS_ZK_REGION_CLOSED` RS_ZK_REGION_CLOSED RS has finished closing a region.
`RS_ZK_REGION_FAILED_OPEN` RS_ZK_REGION_FAILED_OPEN RS failed to open a region.
`RS_ZK_REGION_MERGED` RS_ZK_REGION_MERGE RS region merge has completed and is notifying the master.
`RS_ZK_REGION_MERGING` RS_ZK_REGION_MERGING RS has started merging regions after master says it's ok to move on.
`RS_ZK_REGION_OPENED` RS_ZK_REGION_OPENED RS has finished opening a region.
`RS_ZK_REGION_OPENING` RS_ZK_REGION_OPENING RS is in process of opening a region.
`RS_ZK_REGION_SPLIT` RS_ZK_REGION_SPLIT RS split has completed and is notifying the master.
`RS_ZK_REGION_SPLITTING` RS_ZK_REGION_SPLITTING RS has started a region split after master says it's ok to move on.
`RS_ZK_REQUEST_REGION_MERGE` RS_ZK_REQUEST_REGION_MERGE RS has requested to merge two regions.
`RS_ZK_REQUEST_REGION_SPLIT` RS_ZK_REQUEST_REGION_SPLIT RS has requested to split a region.

Field Summary

Fields
Modifier and Type Field and Description

private int code

private ExecutorType executor

Fields
Modifier and Type	Field and Description
`private int`	`code`
`private ExecutorType`	`executor`

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`static EventType`	`get(int code)`
`int`	`getCode()`
`(package private) ExecutorType`	`getExecutorServiceType()`
`static EventType`	`valueOf(String name)` Returns the enum constant of this type with the specified name.
`static EventType[]`	`values()` Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum
clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object
getClass, notify, notifyAll, wait, wait, wait

- Enum Constant Detail
  - RS_ZK_REGION_CLOSED
```
public static final EventType RS_ZK_REGION_CLOSED
```
    RS_ZK_REGION_CLOSED
    RS has finished closing a region.
  - RS_ZK_REGION_OPENING
```
public static final EventType RS_ZK_REGION_OPENING
```
    RS_ZK_REGION_OPENING
    RS is in process of opening a region.
  - RS_ZK_REGION_OPENED
```
public static final EventType RS_ZK_REGION_OPENED
```
    RS_ZK_REGION_OPENED
    RS has finished opening a region.
  - RS_ZK_REGION_SPLITTING
```
public static final EventType RS_ZK_REGION_SPLITTING
```
    RS_ZK_REGION_SPLITTING
    RS has started a region split after master says it's ok to move on.
  - RS_ZK_REGION_SPLIT
```
public static final EventType RS_ZK_REGION_SPLIT
```
    RS_ZK_REGION_SPLIT
    RS split has completed and is notifying the master.
  - RS_ZK_REGION_FAILED_OPEN
```
public static final EventType RS_ZK_REGION_FAILED_OPEN
```
    RS_ZK_REGION_FAILED_OPEN
    RS failed to open a region.
  - RS_ZK_REGION_MERGING
```
public static final EventType RS_ZK_REGION_MERGING
```
    RS_ZK_REGION_MERGING
    RS has started merging regions after master says it's ok to move on.
  - RS_ZK_REGION_MERGED
```
public static final EventType RS_ZK_REGION_MERGED
```
    RS_ZK_REGION_MERGE
    RS region merge has completed and is notifying the master.
  - RS_ZK_REQUEST_REGION_SPLIT
```
public static final EventType RS_ZK_REQUEST_REGION_SPLIT
```
    RS_ZK_REQUEST_REGION_SPLIT
    RS has requested to split a region. This is to notify master and check with master if the region is in a state good to split.
  - RS_ZK_REQUEST_REGION_MERGE
```
public static final EventType RS_ZK_REQUEST_REGION_MERGE
```
    RS_ZK_REQUEST_REGION_MERGE
    RS has requested to merge two regions. This is to notify master and check with master if two regions is in states good to merge.
  - M_RS_OPEN_REGION
```
public static final EventType M_RS_OPEN_REGION
```
    Messages originating from Master to RS.
    M_RS_OPEN_REGION
    Master asking RS to open a region.
  - M_RS_OPEN_ROOT
```
public static final EventType M_RS_OPEN_ROOT
```
    Messages originating from Master to RS.
    M_RS_OPEN_ROOT
    Master asking RS to open root.
  - M_RS_OPEN_META
```
public static final EventType M_RS_OPEN_META
```
    Messages originating from Master to RS.
    M_RS_OPEN_META
    Master asking RS to open meta.
  - M_RS_CLOSE_REGION
```
public static final EventType M_RS_CLOSE_REGION
```
    Messages originating from Master to RS.
    M_RS_CLOSE_REGION
    Master asking RS to close a region.
  - M_RS_CLOSE_ROOT
```
public static final EventType M_RS_CLOSE_ROOT
```
    Messages originating from Master to RS.
    M_RS_CLOSE_ROOT
    Master asking RS to close root.
  - M_RS_CLOSE_META
```
public static final EventType M_RS_CLOSE_META
```
    Messages originating from Master to RS.
    M_RS_CLOSE_META
    Master asking RS to close meta.
  - M_RS_OPEN_PRIORITY_REGION
```
public static final EventType M_RS_OPEN_PRIORITY_REGION
```
    Messages originating from Master to RS.
    M_RS_OPEN_PRIORITY_REGION
    Master asking RS to open a priority region.
  - M_RS_SWITCH_RPC_THROTTLE
```
public static final EventType M_RS_SWITCH_RPC_THROTTLE
```
    Messages originating from Master to RS.
    M_RS_SWITCH_RPC_THROTTLE
    Master asking RS to switch rpc throttle state.
  - C_M_MERGE_REGION
```
public static final EventType C_M_MERGE_REGION
```
    Messages originating from Client to Master.
    C_M_MERGE_REGION
    Client asking Master to merge regions.
  - C_M_DELETE_TABLE
```
public static final EventType C_M_DELETE_TABLE
```
    Messages originating from Client to Master.
    C_M_DELETE_TABLE
    Client asking Master to delete a table.
  - C_M_DISABLE_TABLE
```
public static final EventType C_M_DISABLE_TABLE
```
    Messages originating from Client to Master.
    C_M_DISABLE_TABLE
    Client asking Master to disable a table.
  - C_M_ENABLE_TABLE
```
public static final EventType C_M_ENABLE_TABLE
```
    Messages originating from Client to Master.
    C_M_ENABLE_TABLE
    Client asking Master to enable a table.
  - C_M_MODIFY_TABLE
```
public static final EventType C_M_MODIFY_TABLE
```
    Messages originating from Client to Master.
    C_M_MODIFY_TABLE
    Client asking Master to modify a table.
  - C_M_ADD_FAMILY
```
public static final EventType C_M_ADD_FAMILY
```
    Messages originating from Client to Master.
    C_M_ADD_FAMILY
    Client asking Master to add family to table.
  - C_M_DELETE_FAMILY
```
public static final EventType C_M_DELETE_FAMILY
```
    Messages originating from Client to Master.
    C_M_DELETE_FAMILY
    Client asking Master to delete family of table.
  - C_M_MODIFY_FAMILY
```
public static final EventType C_M_MODIFY_FAMILY
```
    Messages originating from Client to Master.
    C_M_MODIFY_FAMILY
    Client asking Master to modify family of table.
  - C_M_CREATE_TABLE
```
public static final EventType C_M_CREATE_TABLE
```
    Messages originating from Client to Master.
    C_M_CREATE_TABLE
    Client asking Master to create a table.
  - C_M_SNAPSHOT_TABLE
```
public static final EventType C_M_SNAPSHOT_TABLE
```
    Messages originating from Client to Master.
    C_M_SNAPSHOT_TABLE
    Client asking Master to snapshot an offline table.
  - C_M_RESTORE_SNAPSHOT
```
public static final EventType C_M_RESTORE_SNAPSHOT
```
    Messages originating from Client to Master.
    C_M_RESTORE_SNAPSHOT
    Client asking Master to restore a snapshot.
  - M_ZK_REGION_OFFLINE
```
public static final EventType M_ZK_REGION_OFFLINE
```
    M_ZK_REGION_OFFLINE Master adds this region as offline in ZK
  - M_ZK_REGION_CLOSING
```
public static final EventType M_ZK_REGION_CLOSING
```
    M_ZK_REGION_CLOSING Master adds this region as closing in ZK
  - M_SERVER_SHUTDOWN
```
public static final EventType M_SERVER_SHUTDOWN
```
    Master controlled events to be executed on the master M_SERVER_SHUTDOWN Master is processing shutdown of a RS
  - M_META_SERVER_SHUTDOWN
```
public static final EventType M_META_SERVER_SHUTDOWN
```
    Master controlled events to be executed on the master.
    M_META_SERVER_SHUTDOWN
    Master is processing shutdown of RS hosting a meta region (-ROOT- or hbase:meta).
  - M_MASTER_RECOVERY
```
public static final EventType M_MASTER_RECOVERY
```
    Master controlled events to be executed on the master.
    M_MASTER_RECOVERY
    Master is processing recovery of regions found in ZK RIT
  - M_LOG_REPLAY
```
public static final EventType M_LOG_REPLAY
```
    Master controlled events to be executed on the master.
    M_LOG_REPLAY
    Master is processing log replay of failed region server
  - RS_PARALLEL_SEEK
```
public static final EventType RS_PARALLEL_SEEK
```
    RS controlled events to be executed on the RS.
    RS_PARALLEL_SEEK
  - RS_LOG_REPLAY
```
public static final EventType RS_LOG_REPLAY
```
    RS wal recovery work items (splitting wals) to be executed on the RS.
    RS_LOG_REPLAY
  - RS_REGION_REPLICA_FLUSH
```
public static final EventType RS_REGION_REPLICA_FLUSH
```
    RS flush triggering from secondary region replicas to primary region replica.
    RS_REGION_REPLICA_FLUSH
  - RS_COMPACTED_FILES_DISCHARGER
```
public static final EventType RS_COMPACTED_FILES_DISCHARGER
```
    RS compacted files discharger
    RS_COMPACTED_FILES_DISCHARGER
  - RS_REFRESH_PEER
```
public static final EventType RS_REFRESH_PEER
```
    RS refresh peer.
    RS_REFRESH_PEER
- Field Detail
  - code
```
private final int code
```
  - executor
```
private final ExecutorType executor
```
- Method Detail
  - values
```
public static EventType[] values()
```
    Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:
```
for (EventType c : EventType.values())
    System.out.println(c);
```
    Returns:
    
    an array containing the constants of this enum type, in the order they are declared
  - valueOf
```
public static EventType valueOf(String name)
```
    Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)
    
    Parameters:
    
    name - the name of the enum constant to be returned.
    
    Returns:
    
    the enum constant with the specified name
    
    Throws:
    
    IllegalArgumentException - if this enum type has no constant with the specified name
    
    NullPointerException - if the argument is null
  - getCode
```
public int getCode()
```
  - get
```
public static EventType get(int code)
```
  - getExecutorServiceType
```
ExecutorType getExecutorServiceType()
```

Enum EventType

Enum Constant Summary

Field Summary

Method Summary

Methods inherited from class java.lang.Enum

Methods inherited from class java.lang.Object

Enum Constant Detail

RS_ZK_REGION_CLOSED

RS_ZK_REGION_OPENING

RS_ZK_REGION_OPENED

RS_ZK_REGION_SPLITTING

RS_ZK_REGION_SPLIT

RS_ZK_REGION_FAILED_OPEN

RS_ZK_REGION_MERGING

RS_ZK_REGION_MERGED

RS_ZK_REQUEST_REGION_SPLIT

RS_ZK_REQUEST_REGION_MERGE

M_RS_OPEN_REGION

M_RS_OPEN_ROOT

M_RS_OPEN_META

M_RS_CLOSE_REGION

M_RS_CLOSE_ROOT

M_RS_CLOSE_META

M_RS_OPEN_PRIORITY_REGION

M_RS_SWITCH_RPC_THROTTLE

C_M_MERGE_REGION

C_M_DELETE_TABLE

C_M_DISABLE_TABLE

C_M_ENABLE_TABLE

C_M_MODIFY_TABLE

C_M_ADD_FAMILY

C_M_DELETE_FAMILY

C_M_MODIFY_FAMILY

C_M_CREATE_TABLE

C_M_SNAPSHOT_TABLE

C_M_RESTORE_SNAPSHOT

M_ZK_REGION_OFFLINE

M_ZK_REGION_CLOSING

M_SERVER_SHUTDOWN

M_META_SERVER_SHUTDOWN

M_MASTER_RECOVERY

M_LOG_REPLAY

RS_PARALLEL_SEEK

RS_LOG_REPLAY

RS_REGION_REPLICA_FLUSH

RS_COMPACTED_FILES_DISCHARGER

RS_REFRESH_PEER

Field Detail

code

executor

Method Detail

values

valueOf

getCode

get

getExecutorServiceType