Package org.apache.cassandra.service

Class CassandraDaemon

java.lang.Object

org.apache.cassandra.service.CassandraDaemon

public class CassandraDaemon
extends java.lang.Object

The CassandraDaemon is an abstraction for a Cassandra daemon service, which defines not only a way to activate and deactivate it, but also hooks into its lifecycle methods (see setup(), start(), stop() and setup()).

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	CassandraDaemon.Server

Field Summary

Fields

Modifier and Type	Field	Description
static java.lang.String	MBEAN_NAME
static java.lang.Runnable	SPECULATION_THRESHOLD_UPDATER
protected StartupChecks	startupChecks

Constructor Summary

Constructors

Constructor	Description
CassandraDaemon()
CassandraDaemon(boolean runManaged)

Method Summary

Modifier and Type	Method	Description
void	activate()	A convenience method to initialize and start the daemon in one shot.
void	applyConfig()
void	clearConnectionHistory()
void	completeSetup()
void	deactivate()	A convenience method to stop and destroy the daemon in one shot.
void	destroy()	Clean up all resources obtained during the lifetime of the daemon.
void	destroyClientTransports()
static CassandraDaemon	getInstanceForTesting()
void	init(java.lang.String[] arguments)	Initialize the Cassandra Daemon based on the given Commons Daemon-specific arguments.
void	initializeClientTransports()
boolean	isNativeTransportRunning()
static void	logSystemInfo(org.slf4j.Logger logger)
static void	main(java.lang.String[] args)
void	migrateSystemDataIfNeeded()	Checks if the data of the local system keyspaces need to be migrated to a different location.
NativeTransportService	nativeTransportService()
static void	registerNativeAccess()
void	runStartupChecks()
void	scrubDataDirectories()
protected void	setup()	This is a hook for concrete daemons to initialize themselves suitably.
boolean	setupCompleted()
void	setupVirtualKeyspaces()
void	start()	Start the Cassandra Daemon, assuming that it has already been initialized via init(String[]) Hook for JSVC
void	startNativeTransport()
void	stop()	Stop the daemon, ideally in an idempotent manner.
static void	stop(java.lang.String[] args)
void	stopNativeTransport()	Deprecated.
void	stopNativeTransport(boolean force)
void	validateTransportsCanStart()

Methods inherited from class java.lang.Object

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

Field Detail

MBEAN_NAME

public static final java.lang.String MBEAN_NAME

See Also:

Constant Field Values

SPECULATION_THRESHOLD_UPDATER

public static java.lang.Runnable SPECULATION_THRESHOLD_UPDATER

startupChecks

protected final StartupChecks startupChecks

Constructor Detail

CassandraDaemon

public CassandraDaemon()

CassandraDaemon

public CassandraDaemon(boolean runManaged)

Method Detail

getInstanceForTesting

public static CassandraDaemon getInstanceForTesting()

nativeTransportService

public NativeTransportService nativeTransportService()

setup

protected void setup()

This is a hook for concrete daemons to initialize themselves suitably. Subclasses should override this to finish the job (listening on ports, etc.)

runStartupChecks

public void runStartupChecks()

migrateSystemDataIfNeeded

public void migrateSystemDataIfNeeded()
                               throws java.io.IOException

Checks if the data of the local system keyspaces need to be migrated to a different location.

Throws:

java.io.IOException

setupVirtualKeyspaces

public void setupVirtualKeyspaces()

scrubDataDirectories

public void scrubDataDirectories()
                          throws StartupException

Throws:

StartupException

initializeClientTransports

public void initializeClientTransports()

completeSetup

public void completeSetup()

setupCompleted

public boolean setupCompleted()

logSystemInfo

public static void logSystemInfo(org.slf4j.Logger logger)

init

public void init(java.lang.String[] arguments)
          throws java.io.IOException

Initialize the Cassandra Daemon based on the given Commons Daemon-specific arguments. To clarify, this is a hook for JSVC.

Parameters:

arguments - the arguments passed in from JSVC

Throws:

java.io.IOException

start

public void start()

Start the Cassandra Daemon, assuming that it has already been initialized via init(String[]) Hook for JSVC

stop

public void stop()

Stop the daemon, ideally in an idempotent manner. Hook for JSVC / Procrun

destroyClientTransports

public void destroyClientTransports()

destroy

public void destroy()

Clean up all resources obtained during the lifetime of the daemon. This is a hook for JSVC.

activate

public void activate()

A convenience method to initialize and start the daemon in one shot.

registerNativeAccess

public static void registerNativeAccess()
                                 throws javax.management.NotCompliantMBeanException

Throws:

javax.management.NotCompliantMBeanException

applyConfig

public void applyConfig()

validateTransportsCanStart

public void validateTransportsCanStart()

startNativeTransport

public void startNativeTransport()

stopNativeTransport

@Deprecated(since="5.0.0")
public void stopNativeTransport()

Deprecated.

stopNativeTransport

public void stopNativeTransport(boolean force)

isNativeTransportRunning

public boolean isNativeTransportRunning()

deactivate

public void deactivate()

A convenience method to stop and destroy the daemon in one shot.

stop

public static void stop(java.lang.String[] args)

main

public static void main(java.lang.String[] args)

clearConnectionHistory

public void clearConnectionHistory()