org.apache.ambari.server.controller

Class AmbariServer

java.lang.Object

org.apache.ambari.server.controller.AmbariServer

public class AmbariServer
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
static EnumSet<javax.servlet.DispatcherType>	DISPATCHER_TYPES Dispatcher types for webAppContext.addFilter.
boolean	running
protected static String	VELOCITY_LOG_CATEGORY
static String	VIEWS_URL_PATTERN

Constructor Summary

Constructors

Constructor and Description
AmbariServer()

Method Summary

Modifier and Type	Method and Description
protected void	configureHandlerCompression(org.eclipse.jetty.servlet.ServletContextHandler context) Performs GZIP compression configuration of the context handler with static values and values from configuration file
protected org.eclipse.jetty.server.Server	configureJettyThreadPool(int acceptorThreads, String threadPoolName, int configuredThreadPoolSize) The Jetty thread pool consists of three basic types of threads: Acceptors Selectors Threads which can actually do stuff The SelectChannelConnector uses the Runtime.availableProcessors() as a way to determine how many acceptors and selectors to create.
protected void	configureRootHandler(org.eclipse.jetty.servlet.ServletContextHandler root) Performs basic configuration of root handler with static values and values from configuration file.
static void	enableLog4jMonitor(Map<String,String> configsMap) To change log level without restart.
static AmbariManagementController	getController()
String	getServerOsType()
protected void	initDB() Creates default users if in-memory database is used
void	initViewRegistry() Initialize the view registry singleton instance.
static void	main(String[] args)
void	performStaticInjection() Deprecated.
void	run()
protected void	runDatabaseConsistencyCheck() this method executes database consistency check if skip option was not added
static void	setController(AmbariManagementController controller)
static void	setupProxyAuth() Sets up proxy authentication.
void	stop()

Methods inherited from class java.lang.Object

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

Field Detail

VIEWS_URL_PATTERN

public static final String VIEWS_URL_PATTERN

See Also:

Constant Field Values

VELOCITY_LOG_CATEGORY

protected static final String VELOCITY_LOG_CATEGORY

See Also:

Constant Field Values

DISPATCHER_TYPES

public static final EnumSet<javax.servlet.DispatcherType> DISPATCHER_TYPES

Dispatcher types for webAppContext.addFilter.

running

public volatile boolean running

Constructor Detail

AmbariServer

public AmbariServer()

Method Detail

getServerOsType

public String getServerOsType()

getController

public static AmbariManagementController getController()

setController

public static void setController(AmbariManagementController controller)

run

public void run()
         throws Exception

Throws:

Exception

runDatabaseConsistencyCheck

protected void runDatabaseConsistencyCheck()
                                    throws Exception

this method executes database consistency check if skip option was not added

Throws:

Exception

configureJettyThreadPool

protected org.eclipse.jetty.server.Server configureJettyThreadPool(int acceptorThreads,
                                                                   String threadPoolName,
                                                                   int configuredThreadPoolSize)

The Jetty thread pool consists of three basic types of threads:

• Acceptors
• Selectors
• Threads which can actually do stuff
The SelectChannelConnector uses the Runtime.availableProcessors() as a way to determine how many acceptors and selectors to create. If the number of processors is too great, then there will be no threads left to fullfil connection requests. This method ensures that the pool size is configured correctly, taking into account the number of available processors (sockets x core x threads-per-core).

If the configured pool size is determined to be too small, then this will log a warning and increase the pool size to ensure that there are at least 20 available threads for requests.

Parameters:

acceptorThreads - the number of Acceptor threads configured for the connector.

threadPoolName - the name of the thread pool being configured (not null).

configuredThreadPoolSize - the size of the pool from Configuration.

configureRootHandler

protected void configureRootHandler(org.eclipse.jetty.servlet.ServletContextHandler root)

Performs basic configuration of root handler with static values and values from configuration file.

Parameters:

root - root handler

configureHandlerCompression

protected void configureHandlerCompression(org.eclipse.jetty.servlet.ServletContextHandler context)

Performs GZIP compression configuration of the context handler with static values and values from configuration file

Parameters:

context - handler

initDB

protected void initDB()
               throws org.apache.ambari.server.AmbariException

Creates default users if in-memory database is used

Throws:

org.apache.ambari.server.AmbariException

stop

public void stop()
          throws Exception

Throws:

Exception

performStaticInjection

@Deprecated
public void performStaticInjection()

Deprecated.

Deprecated. Instead, use StaticallyInject.

Static injection replacement to wait Persistence Service start.

See Also:

StaticallyInject

initViewRegistry

public void initViewRegistry()

Initialize the view registry singleton instance.

setupProxyAuth

public static void setupProxyAuth()

Sets up proxy authentication. This must be done before the server is initialized since AmbariMetaInfo requires potential URL lookups that may need the proxy.

enableLog4jMonitor

public static void enableLog4jMonitor(Map<String,String> configsMap)

To change log level without restart.

main

public static void main(String[] args)
                 throws Exception

Throws:

Exception