Module org.elasticsearch.server

Package org.elasticsearch.monitor.fs

Class FsHealthService

java.lang.Object

org.elasticsearch.common.component.AbstractLifecycleComponent

org.elasticsearch.monitor.fs.FsHealthService

All Implemented Interfaces:

Closeable, AutoCloseable, LifecycleComponent, Releasable, NodeHealthService

public final class FsHealthService
extends AbstractLifecycleComponent
implements NodeHealthService

Runs periodically and attempts to create a temp file to see if the filesystem is writable. If not then it marks the path as unhealthy.

Field Summary

Fields

Modifier and Type	Field	Description
static final Setting<Boolean>	ENABLED_SETTING
static final Setting<TimeValue>	REFRESH_INTERVAL_SETTING
static final Setting<TimeValue>	SLOW_PATH_LOGGING_THRESHOLD_SETTING

Fields inherited from class org.elasticsearch.common.component.AbstractLifecycleComponent

lifecycle

Constructor Summary

Constructors

Constructor	Description
FsHealthService(Settings settings, ClusterSettings clusterSettings, ThreadPool threadPool, NodeEnvironment nodeEnv)

Method Summary

Modifier and Type	Method	Description
protected void	doClose()	Close this component.
protected void	doStart()	Start this component.
protected void	doStop()	Stop this component.
StatusInfo	getHealth()
void	setEnabled(boolean enabled)
void	setSlowPathLoggingThreshold(TimeValue slowPathLoggingThreshold)

Methods inherited from class org.elasticsearch.common.component.AbstractLifecycleComponent

addLifecycleListener, close, lifecycleState, start, stop

Methods inherited from class java.lang.Object

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

Field Details

ENABLED_SETTING

public static final Setting<Boolean> ENABLED_SETTING

REFRESH_INTERVAL_SETTING

public static final Setting<TimeValue> REFRESH_INTERVAL_SETTING

SLOW_PATH_LOGGING_THRESHOLD_SETTING

public static final Setting<TimeValue> SLOW_PATH_LOGGING_THRESHOLD_SETTING

Constructor Details

FsHealthService

public FsHealthService(Settings settings,
 ClusterSettings clusterSettings,
 ThreadPool threadPool,
 NodeEnvironment nodeEnv)

Method Details

doStart

protected void doStart()

Description copied from class: AbstractLifecycleComponent

Start this component. Typically that means doing things like launching background processes and registering listeners on other components. Other components have been initialized by this point, but may not yet be started.

If this method throws an exception then the startup process will fail, but this component will not be stopped before it is closed.

This method is called while synchronized on AbstractLifecycleComponent.lifecycle. It is only called once in the lifetime of a component, although it may not be called at all if the startup process encountered some kind of fatal error, such as the failure of some other component to initialize or start.

Specified by:

doStart in class AbstractLifecycleComponent

doStop

protected void doStop()

Description copied from class: AbstractLifecycleComponent

Stop this component. Typically that means doing the reverse of whatever AbstractLifecycleComponent.doStart() does.

This method is called while synchronized on AbstractLifecycleComponent.lifecycle. It is only called once in the lifetime of a component, after calling AbstractLifecycleComponent.doStart(), although it will not be called at all if this component did not successfully start.

Specified by:

doStop in class AbstractLifecycleComponent

doClose

protected void doClose()

Description copied from class: AbstractLifecycleComponent

Close this component. Typically that means doing the reverse of whatever happened during initialization, such as releasing resources acquired there.

This method is called while synchronized on AbstractLifecycleComponent.lifecycle. It is called once in the lifetime of a component. If the component was started then it will be stopped before it is closed, and once it is closed it will not be started or stopped.

Specified by:

doClose in class AbstractLifecycleComponent

setEnabled

public void setEnabled(boolean enabled)

setSlowPathLoggingThreshold

public void setSlowPathLoggingThreshold(TimeValue slowPathLoggingThreshold)

getHealth

public StatusInfo getHealth()

Specified by:

getHealth in interface NodeHealthService