ConnectionConfiguration (Apache HBase 1.4.11 API)

java.lang.Object
- org.apache.hadoop.hbase.client.ConnectionConfiguration

```
@InterfaceAudience.Private
public class ConnectionConfiguration
extends Object
```
Configuration parameters for the connection. Configuration is a heavy weight registry that does a lot of string operations and regex matching. Method calls into Configuration account for high CPU usage and have huge performance impact. This class caches connection-related configuration values in the ConnectionConfiguration object so that expensive conf.getXXX() calls are avoided every time HTable, etc is instantiated. see HBASE-12128

Field Summary

Fields
Modifier and Type	Field and Description
`static int`	`MAX_KEYVALUE_SIZE_DEFAULT`
`static String`	`MAX_KEYVALUE_SIZE_KEY`
`static long`	`WRITE_BUFFER_SIZE_DEFAULT`
`static String`	`WRITE_BUFFER_SIZE_KEY`

Constructor Summary

Constructors
Modifier Constructor and Description

protected ConnectionConfiguration()
Constructor This is for internal testing purpose (using the default value).

Constructors
Modifier	Constructor and Description
`protected`	`ConnectionConfiguration()` Constructor This is for internal testing purpose (using the default value).

Method Summary

Methods
Modifier and Type	Method and Description
`int`	`getMaxKeyValueSize()`
`int`	`getMetaOperationTimeout()`
`int`	`getMetaReplicaCallTimeoutMicroSecondScan()`
`int`	`getOperationTimeout()`
`int`	`getPrimaryCallTimeoutMicroSecond()`
`int`	`getReplicaCallTimeoutMicroSecondScan()`
`int`	`getRetriesNumber()`
`int`	`getScannerCaching()`
`long`	`getScannerMaxResultSize()`
`long`	`getWriteBufferSize()`

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

- Field Detail
  - WRITE_BUFFER_SIZE_KEY
```
public static final String WRITE_BUFFER_SIZE_KEY
```
    See Also:
    Constant Field Values
  - WRITE_BUFFER_SIZE_DEFAULT
```
public static final long WRITE_BUFFER_SIZE_DEFAULT
```
    See Also:
    Constant Field Values
  - MAX_KEYVALUE_SIZE_KEY
```
public static final String MAX_KEYVALUE_SIZE_KEY
```
    See Also:
    Constant Field Values
  - MAX_KEYVALUE_SIZE_DEFAULT
```
public static final int MAX_KEYVALUE_SIZE_DEFAULT
```
    See Also:
    Constant Field Values
- Constructor Detail
  - ConnectionConfiguration
```
protected ConnectionConfiguration()
```
    Constructor This is for internal testing purpose (using the default value). In real usage, we should read the configuration from the Configuration object.
- Method Detail
  - getWriteBufferSize
```
public long getWriteBufferSize()
```
  - getMetaOperationTimeout
```
public int getMetaOperationTimeout()
```
  - getOperationTimeout
```
public int getOperationTimeout()
```
  - getScannerCaching
```
public int getScannerCaching()
```
  - getPrimaryCallTimeoutMicroSecond
```
public int getPrimaryCallTimeoutMicroSecond()
```
  - getReplicaCallTimeoutMicroSecondScan
```
public int getReplicaCallTimeoutMicroSecondScan()
```
  - getMetaReplicaCallTimeoutMicroSecondScan
```
public int getMetaReplicaCallTimeoutMicroSecondScan()
```
  - getRetriesNumber
```
public int getRetriesNumber()
```
  - getMaxKeyValueSize
```
public int getMaxKeyValueSize()
```
  - getScannerMaxResultSize
```
public long getScannerMaxResultSize()
```

Class ConnectionConfiguration

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

WRITE_BUFFER_SIZE_KEY

WRITE_BUFFER_SIZE_DEFAULT

MAX_KEYVALUE_SIZE_KEY

MAX_KEYVALUE_SIZE_DEFAULT

Constructor Detail

ConnectionConfiguration

Method Detail

getWriteBufferSize

getMetaOperationTimeout

getOperationTimeout

getScannerCaching

getPrimaryCallTimeoutMicroSecond

getReplicaCallTimeoutMicroSecondScan

getMetaReplicaCallTimeoutMicroSecondScan

getRetriesNumber

getMaxKeyValueSize

getScannerMaxResultSize