org.apache.cassandra.utils

Class JVMStabilityInspector

java.lang.Object

org.apache.cassandra.utils.JVMStabilityInspector

public final class JVMStabilityInspector
extends java.lang.Object

Responsible for deciding whether to kill the JVM if it gets in an "unstable" state (think OOM).

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	JVMStabilityInspector.Killer
static interface	JVMStabilityInspector.OnKillHook This class is usually used to avoid JVM exit when running junit tests.

Field Summary

Fields

Modifier and Type	Field and Description
static JVMStabilityInspector.OnKillHook	killerHook

Method Summary

Modifier and Type	Method and Description
static void	inspectCommitLogThrowable(java.lang.Throwable t)
static void	inspectThrowable(java.lang.Throwable t) Certain Throwables and Exceptions represent "Die" conditions for the server.
static void	inspectThrowable(java.lang.Throwable t, java.util.function.Consumer<java.lang.Throwable> fn)
static void	killCurrentJVM(java.lang.Throwable t, boolean quiet)
static JVMStabilityInspector.Killer	replaceKiller(JVMStabilityInspector.Killer newKiller)
static void	userFunctionTimeout(java.lang.Throwable t)

Methods inherited from class java.lang.Object

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

Field Detail

killerHook

public static JVMStabilityInspector.OnKillHook killerHook

Method Detail

inspectThrowable

public static void inspectThrowable(java.lang.Throwable t)
                             throws java.lang.OutOfMemoryError

Certain Throwables and Exceptions represent "Die" conditions for the server. This recursively checks the input Throwable's cause hierarchy until null.

Parameters:

t - The Throwable to check for server-stop conditions

Throws:

java.lang.OutOfMemoryError

inspectCommitLogThrowable

public static void inspectCommitLogThrowable(java.lang.Throwable t)

inspectThrowable

public static void inspectThrowable(java.lang.Throwable t,
                                    java.util.function.Consumer<java.lang.Throwable> fn)
                             throws java.lang.OutOfMemoryError

Throws:

java.lang.OutOfMemoryError

killCurrentJVM

public static void killCurrentJVM(java.lang.Throwable t,
                                  boolean quiet)

userFunctionTimeout

public static void userFunctionTimeout(java.lang.Throwable t)

replaceKiller

public static JVMStabilityInspector.Killer replaceKiller(JVMStabilityInspector.Killer newKiller)