org.apache.accumulo.minicluster

Class MiniAccumuloConfig

java.lang.Object

org.apache.accumulo.minicluster.MiniAccumuloConfig

public class MiniAccumuloConfig
extends Object

Holds configuration for MiniAccumuloCluster. Required configurations must be passed to constructor(s) and all other configurations are optional.

Since:

1.5.0

Constructor Summary

Constructors

Constructor and Description
MiniAccumuloConfig(File dir, String rootPassword)

Method Summary

Methods

Modifier and Type	Method and Description
long	getDefaultMemory()
File	getDir()
String	getInstanceName()
long	getMemory(ServerType serverType)
String[]	getNativeLibPaths()
int	getNumTservers()
String	getRootPassword()
Map<String,String>	getSiteConfig()
int	getZooKeeperPort()
boolean	isJDWPEnabled()
MiniAccumuloConfig	setDefaultMemory(long memory, MemoryUnit memoryUnit) Sets the default memory size to use.
MiniAccumuloConfig	setInstanceName(String instanceName) Calling this method is optional.
MiniAccumuloConfig	setJDWPEnabled(boolean jdwpEnabled)
MiniAccumuloConfig	setMemory(ServerType serverType, long memory, MemoryUnit memoryUnit) Sets the amount of memory to use in the master process.
MiniAccumuloConfig	setNativeLibPaths(String... nativePathItems) Sets the path for processes to use for loading native libraries
MiniAccumuloConfig	setNumTservers(int numTservers) Calling this method is optional.
MiniAccumuloConfig	setSiteConfig(Map<String,String> siteConfig) Calling this method is optional.
MiniAccumuloConfig	setZooKeeperPort(int zooKeeperPort) Calling this method is optional.
MiniAccumuloConfig	setZooKeeperStartupTime(long zooKeeperStartupTime) Configure the time to wait for ZooKeeper to startup.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

MiniAccumuloConfig

public MiniAccumuloConfig(File dir,
                  String rootPassword)

Parameters:

dir - An empty or nonexistant directory that Accumulo and Zookeeper can store data in. Creating the directory is left to the user. Java 7, Guava, and Junit provide methods for creating temporary directories.

rootPassword - The initial password for the Accumulo root user

Method Detail

setNumTservers

public MiniAccumuloConfig setNumTservers(int numTservers)

Calling this method is optional. If not set, it defaults to two.

Parameters:

numTservers - the number of tablet servers that mini accumulo cluster should start

setInstanceName

public MiniAccumuloConfig setInstanceName(String instanceName)

Calling this method is optional. If not set, defaults to 'miniInstance'

Since:

1.6.0

setSiteConfig

public MiniAccumuloConfig setSiteConfig(Map<String,String> siteConfig)

Calling this method is optional. If not set, it defaults to an empty map.

Parameters:

siteConfig - key/values that you normally put in accumulo-site.xml can be put here.

setZooKeeperPort

public MiniAccumuloConfig setZooKeeperPort(int zooKeeperPort)

Calling this method is optional. A random port is generated by default

Parameters:

zooKeeperPort - A valid (and unused) port to use for the zookeeper

Since:

1.6.0

setZooKeeperStartupTime

public MiniAccumuloConfig setZooKeeperStartupTime(long zooKeeperStartupTime)

Configure the time to wait for ZooKeeper to startup. Calling this method is optional. The default is 20000 milliseconds

Parameters:

zooKeeperStartupTime - Time to wait for ZooKeeper to startup, in milliseconds

Since:

1.6.1

setMemory

public MiniAccumuloConfig setMemory(ServerType serverType,
                           long memory,
                           MemoryUnit memoryUnit)

Sets the amount of memory to use in the master process. Calling this method is optional. Default memory is 128M

Parameters:

serverType - the type of server to apply the memory settings

memory - amount of memory to set

memoryUnit - the units for which to apply with the memory size

Since:

1.6.0

setDefaultMemory

public MiniAccumuloConfig setDefaultMemory(long memory,
                                  MemoryUnit memoryUnit)

Sets the default memory size to use. This value is also used when a ServerType has not been configured explicitly. Calling this method is optional. Default memory is 128M

Parameters:

memory - amount of memory to set

memoryUnit - the units for which to apply with the memory size

Since:

1.6.0

getSiteConfig

public Map<String,String> getSiteConfig()

Returns:

a copy of the site config

getInstanceName

public String getInstanceName()

Returns:

name of configured instance

Since:

1.6.0

getZooKeeperPort

public int getZooKeeperPort()

Returns:

The configured zookeeper port

Since:

1.6.0

getMemory

public long getMemory(ServerType serverType)

Parameters:

serverType - get configuration for this server type

Returns:

memory configured in bytes, returns default if this server type is not configured

Since:

1.6.0

getDefaultMemory

public long getDefaultMemory()

Returns:

memory configured in bytes

Since:

1.6.0

getDir

public File getDir()

Returns:

the base directory of the cluster configuration

getRootPassword

public String getRootPassword()

Returns:

the root password of this cluster configuration

getNumTservers

public int getNumTservers()

Returns:

the number of tservers configured for this cluster

isJDWPEnabled

public boolean isJDWPEnabled()

Returns:

is the current configuration in jdwpEnabled mode?

Since:

1.6.0

setJDWPEnabled

public MiniAccumuloConfig setJDWPEnabled(boolean jdwpEnabled)

Parameters:

jdwpEnabled - should the processes run remote jdwpEnabled servers?

Returns:

the current instance

Since:

1.6.0

getNativeLibPaths

public String[] getNativeLibPaths()

Returns:

the paths to use for loading native libraries

Since:

1.6.0

setNativeLibPaths

public MiniAccumuloConfig setNativeLibPaths(String... nativePathItems)

Sets the path for processes to use for loading native libraries

Parameters:

nativePathItems - the nativePathItems to set

Since:

1.6.0