EventType (Apache HBase - Server 2.1.3 API)

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

所有已实现的接口:

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.

枚举常量概要

枚举常量
枚举常量和说明
`C_M_ADD_FAMILY` Messages originating from Client to Master.
`C_M_CREATE_TABLE` Messages originating from Client to Master.
`C_M_DELETE_FAMILY` Messages originating from Client to Master.
`C_M_DELETE_TABLE` Messages originating from Client to Master.
`C_M_DISABLE_TABLE` Messages originating from Client to Master.
`C_M_ENABLE_TABLE` Messages originating from Client to Master.
`C_M_MERGE_REGION` Messages originating from Client to Master.
`C_M_MODIFY_FAMILY` Messages originating from Client to Master.
`C_M_MODIFY_TABLE` Messages originating from Client to Master.
`C_M_RESTORE_SNAPSHOT` Messages originating from Client to Master.
`C_M_SNAPSHOT_TABLE` Messages originating from Client to Master.
`M_LOG_REPLAY` Master controlled events to be executed on the master.
`M_MASTER_RECOVERY` Master controlled events to be executed on the master.
`M_META_SERVER_SHUTDOWN` Master controlled events to be executed on the master.
`M_RS_CLOSE_META` Messages originating from Master to RS.
`M_RS_CLOSE_REGION` Messages originating from Master to RS.
`M_RS_CLOSE_ROOT` Messages originating from Master to RS.
`M_RS_OPEN_META` Messages originating from Master to RS.
`M_RS_OPEN_PRIORITY_REGION` Messages originating from Master to RS.
`M_RS_OPEN_REGION` Messages originating from Master to RS.
`M_RS_OPEN_ROOT` Messages originating from Master to RS.
`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_PARALLEL_SEEK` RS controlled events to be executed on the RS.
`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.

方法概要

所有方法静态方法实例方法具体方法
限定符和类型	方法和说明
`static EventType`	`get(int code)`
`int`	`getCode()`
`boolean`	`isOnlineSchemaChangeSupported()`
`static EventType`	`valueOf(String name)` 返回带有指定名称的该类型的枚举常量。
`static EventType[]`	`values()` 按照声明该枚举类型的常量的顺序, 返回包含这些常量的数组。

从类继承的方法 java.lang.Enum
clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

从类继承的方法 java.lang.Object
getClass, notify, notifyAll, wait, wait, wait

- 枚举常量详细资料
  - 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.
  - 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
- 方法详细资料
  - values
```
public static EventType[] values()
```
    按照声明该枚举类型的常量的顺序, 返回包含这些常量的数组。该方法可用于迭代常量, 如下所示:
```
for (EventType c : EventType.values())
    System.out.println(c);
```
    返回:
    
    按照声明该枚举类型的常量的顺序返回的包含这些常量的数组
  - valueOf
```
public static EventType valueOf(String name)
```
    返回带有指定名称的该类型的枚举常量。字符串必须与用于声明该类型的枚举常量的标识符完全匹配。(不允许有多余的空格字符。)
    
    参数:
    
    name - 要返回的枚举常量的名称。
    
    返回:
    
    返回带有指定名称的枚举常量
    
    抛出:
    
    IllegalArgumentException - 如果该枚举类型没有带有指定名称的常量
    
    NullPointerException - 如果参数为空值
  - getCode
```
public int getCode()
```
  - get
```
public static EventType get(int code)
```
  - isOnlineSchemaChangeSupported
```
public boolean isOnlineSchemaChangeSupported()
```

枚举 EventType

枚举常量概要

方法概要

从类继承的方法 java.lang.Enum

从类继承的方法 java.lang.Object

枚举常量详细资料

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

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

方法详细资料

values

valueOf

getCode

get

isOnlineSchemaChangeSupported