ZKConfig (Apache HBase 1.1.7 API)

java.lang.Object
- org.apache.hadoop.hbase.zookeeper.ZKConfig

```
@InterfaceAudience.Private
public class ZKConfig
extends Object
```
Utility methods for reading, and building the ZooKeeper configuration. The order and priority for reading the config are as follows: (1). zoo.cfg if ""hbase.config.read.zookeeper.config" is true (2). Property with "hbase.zookeeper.property." prefix from HBase XML (3). other zookeeper related properties in HBASE XML

Constructor Summary

Constructors
Constructor and Description

ZKConfig()

Constructors
Constructor and Description
`ZKConfig()`

Method Summary

Methods
Modifier and Type	Method and Description
`static String`	`buildQuorumServerString(String[] serverHosts, String clientPort)` Build the ZK quorum server string with "server:clientport" list, separated by ','
`static String`	`getZKQuorumServersString(org.apache.hadoop.conf.Configuration conf)` Return the ZK Quorum servers string given the specified configuration.
`static Properties`	`makeZKProps(org.apache.hadoop.conf.Configuration conf)` Make a Properties object holding ZooKeeper config.
`static Properties`	`parseZooCfg(org.apache.hadoop.conf.Configuration conf, InputStream inputStream)` Deprecated. in 0.96 onwards. HBase will no longer rely on zoo.cfg availability.

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

- Constructor Detail
  - ZKConfig
```
public ZKConfig()
```
- Method Detail
  - makeZKProps
```
public static Properties makeZKProps(org.apache.hadoop.conf.Configuration conf)
```
    Make a Properties object holding ZooKeeper config. Parses the corresponding config options from the HBase XML configs and generates the appropriate ZooKeeper properties.
    
    Parameters:
    conf - Configuration to read from.
    
    Returns:
    Properties holding mappings representing ZooKeeper config file.
  - parseZooCfg
```
@Deprecated
public static Properties parseZooCfg(org.apache.hadoop.conf.Configuration conf,
                                InputStream inputStream)
                              throws IOException
```
    Deprecated. in 0.96 onwards. HBase will no longer rely on zoo.cfg availability.
    
    Parse ZooKeeper's zoo.cfg, injecting HBase Configuration variables in. This method is used for testing so we can pass our own InputStream.
    
    Parameters:
    conf - HBaseConfiguration to use for injecting variables.
    inputStream - InputStream to read from.
    
    Returns:
    Properties parsed from config stream with variables substituted.
    
    Throws:
    
    IOException - if anything goes wrong parsing config
  - buildQuorumServerString
```
public static String buildQuorumServerString(String[] serverHosts,
                             String clientPort)
```
    Build the ZK quorum server string with "server:clientport" list, separated by ','
    
    Parameters:
    serverHosts - a list of servers for ZK quorum
    clientPort - the default client port
    
    Returns:
    the string for a list of "server:port" separated by ","
  - getZKQuorumServersString
```
public static String getZKQuorumServersString(org.apache.hadoop.conf.Configuration conf)
```
    Return the ZK Quorum servers string given the specified configuration.
    
    Parameters:
    conf -
    
    Returns:
    Quorum servers

Class ZKConfig

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

ZKConfig

Method Detail

makeZKProps

parseZooCfg

buildQuorumServerString

getZKQuorumServersString