mirror of https://github.com/apache/cassandra
Merge branch 'cassandra-4.0' into cassandra-4.1
This commit is contained in:
commit
208a71c008
|
|
@ -152,7 +152,7 @@
|
|||
<property name="chronicle-wire.version" value="2.20.117" />
|
||||
<property name="chronicle-threads.version" value="2.20.111" />
|
||||
|
||||
<property name="dtest-api.version" value="0.0.13" />
|
||||
<property name="dtest-api.version" value="0.0.15" />
|
||||
|
||||
<condition property="maven-ant-tasks.jar.exists">
|
||||
<available file="${build.dir}/maven-ant-tasks-${maven-ant-tasks.version}.jar" />
|
||||
|
|
@ -217,6 +217,7 @@
|
|||
<string>--add-exports java.management.rmi/com.sun.jmx.remote.internal.rmi=ALL-UNNAMED</string>
|
||||
<string>--add-exports java.rmi/sun.rmi.registry=ALL-UNNAMED</string>
|
||||
<string>--add-exports java.rmi/sun.rmi.server=ALL-UNNAMED</string>
|
||||
<string>--add-exports java.rmi/sun.rmi.transport.tcp=ALL-UNNAMED</string>
|
||||
<string>--add-exports java.sql/java.sql=ALL-UNNAMED</string>
|
||||
|
||||
<string>--add-opens java.base/java.lang.module=ALL-UNNAMED</string>
|
||||
|
|
@ -228,6 +229,7 @@
|
|||
<string>--add-opens java.base/jdk.internal.module=ALL-UNNAMED</string>
|
||||
<string>--add-opens java.base/jdk.internal.util.jar=ALL-UNNAMED</string>
|
||||
<string>--add-opens jdk.management/com.sun.management.internal=ALL-UNNAMED</string>
|
||||
|
||||
</resources>
|
||||
<pathconvert property="_jvm_args_concat" refid="_jvm11_arg_items" pathsep=" "/>
|
||||
<condition property="java11-jvmargs" value="${_jvm_args_concat}" else="">
|
||||
|
|
@ -268,7 +270,7 @@
|
|||
</condition>
|
||||
|
||||
<!-- needed to compile org.apache.cassandra.utils.JMXServerUtils -->
|
||||
<condition property="jdk11-javac-exports" value="--add-exports java.rmi/sun.rmi.registry=ALL-UNNAMED" else="">
|
||||
<condition property="jdk11-javac-exports" value="--add-exports java.rmi/sun.rmi.registry=ALL-UNNAMED --add-exports java.rmi/sun.rmi.transport.tcp=ALL-UNNAMED" else="">
|
||||
<not>
|
||||
<equals arg1="${ant.java.version}" arg2="1.8"/>
|
||||
</not>
|
||||
|
|
@ -1441,6 +1443,7 @@
|
|||
<pathelement location="${fqltool.build.classes}"/>
|
||||
</classpath>
|
||||
<compilerarg value="-XDignore.symbol.file"/>
|
||||
<compilerarg line="${jdk11-javac-exports}"/>
|
||||
<src path="${test.anttasks.src}"/>
|
||||
<src path="${test.unit.src}"/>
|
||||
<src path="${test.long.src}"/>
|
||||
|
|
@ -2166,7 +2169,7 @@
|
|||
<echo file=".idea/compiler.xml"><![CDATA[<?xml version="1.0" encoding="UTF-8"?>
|
||||
<project version="4">
|
||||
<component name="JavacSettings">
|
||||
<option name="ADDITIONAL_OPTIONS_STRING" value="--add-exports java.rmi/sun.rmi.registry=ALL-UNNAMED" />
|
||||
<option name="ADDITIONAL_OPTIONS_STRING" value="--add-exports java.rmi/sun.rmi.registry=ALL-UNNAMED --add-exports java.rmi/sun.rmi.transport.tcp=ALL-UNNAMED" />
|
||||
</component>
|
||||
</project>]]></echo>
|
||||
</target>
|
||||
|
|
|
|||
|
|
@ -67,7 +67,7 @@
|
|||
<plugin>
|
||||
<groupId>org.apache.maven.plugins</groupId>
|
||||
<artifactId>maven-shade-plugin</artifactId>
|
||||
<version>3.2.1</version>
|
||||
<version>3.4.1</version>
|
||||
|
||||
<configuration>
|
||||
<createSourcesJar>false</createSourcesJar>
|
||||
|
|
|
|||
|
|
@ -88,6 +88,19 @@ public enum CassandraRelevantProperties
|
|||
*/
|
||||
COM_SUN_MANAGEMENT_JMXREMOTE_AUTHENTICATE ("com.sun.management.jmxremote.authenticate"),
|
||||
|
||||
|
||||
/**
|
||||
* Controls the JMX server threadpool keap-alive time.
|
||||
* Should only be set by in-jvm dtests.
|
||||
*/
|
||||
SUN_RMI_TRANSPORT_TCP_THREADKEEPALIVETIME("sun.rmi.transport.tcp.threadKeepAliveTime"),
|
||||
|
||||
/**
|
||||
* Controls the distributed garbage collector lease time for JMX objects.
|
||||
* Should only be set by in-jvm dtests.
|
||||
*/
|
||||
JAVA_RMI_DGC_LEASE_VALUE_IN_JVM_DTEST("java.rmi.dgc.leaseValue"),
|
||||
|
||||
/**
|
||||
* The port number to which the RMI connector will be bound - com.sun.management.jmxremote.rmi.port.
|
||||
* An Integer object that represents the value of the second argument is returned
|
||||
|
|
@ -226,6 +239,9 @@ public enum CassandraRelevantProperties
|
|||
/** what class to use for mbean registeration */
|
||||
MBEAN_REGISTRATION_CLASS("org.apache.cassandra.mbean_registration_class"),
|
||||
|
||||
/** This property indicates if the code is running under the in-jvm dtest framework */
|
||||
DTEST_IS_IN_JVM_DTEST("org.apache.cassandra.dtest.is_in_jvm_dtest"),
|
||||
|
||||
BATCH_COMMIT_LOG_SYNC_INTERVAL("cassandra.batch_commitlog_sync_interval_millis", "1000"),
|
||||
|
||||
SYSTEM_AUTH_DEFAULT_RF("cassandra.system_auth.default_rf", "1"),
|
||||
|
|
|
|||
|
|
@ -148,18 +148,16 @@ public class GCInspector implements NotificationListener, GCInspectorMXBean
|
|||
|
||||
public GCInspector()
|
||||
{
|
||||
MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();
|
||||
|
||||
try
|
||||
{
|
||||
ObjectName gcName = new ObjectName(ManagementFactory.GARBAGE_COLLECTOR_MXBEAN_DOMAIN_TYPE + ",*");
|
||||
for (ObjectName name : mbs.queryNames(gcName, null))
|
||||
for (ObjectName name : MBeanWrapper.instance.queryNames(gcName, null))
|
||||
{
|
||||
GarbageCollectorMXBean gc = ManagementFactory.newPlatformMXBeanProxy(mbs, name.getCanonicalName(), GarbageCollectorMXBean.class);
|
||||
GarbageCollectorMXBean gc = ManagementFactory.newPlatformMXBeanProxy(MBeanWrapper.instance.getMBeanServer(), name.getCanonicalName(), GarbageCollectorMXBean.class);
|
||||
gcStates.put(gc.getName(), new GCState(gc, assumeGCIsPartiallyConcurrent(gc), assumeGCIsOldGen(gc)));
|
||||
}
|
||||
ObjectName me = new ObjectName(MBEAN_NAME);
|
||||
if (!mbs.isRegistered(me))
|
||||
if (!MBeanWrapper.instance.isRegistered(me))
|
||||
MBeanWrapper.instance.registerMBean(this, new ObjectName(MBEAN_NAME));
|
||||
}
|
||||
catch (MalformedObjectNameException | IOException e)
|
||||
|
|
|
|||
|
|
@ -29,12 +29,14 @@ import java.net.Inet6Address;
|
|||
import java.net.InetAddress;
|
||||
import java.rmi.AccessException;
|
||||
import java.rmi.AlreadyBoundException;
|
||||
import java.rmi.NoSuchObjectException;
|
||||
import java.rmi.NotBoundException;
|
||||
import java.rmi.Remote;
|
||||
import java.rmi.RemoteException;
|
||||
import java.rmi.registry.Registry;
|
||||
import java.rmi.server.RMIClientSocketFactory;
|
||||
import java.rmi.server.RMIServerSocketFactory;
|
||||
import java.rmi.server.UnicastRemoteObject;
|
||||
import java.util.Arrays;
|
||||
import java.util.HashMap;
|
||||
import java.util.Map;
|
||||
|
|
@ -252,7 +254,8 @@ public class JMXServerUtils
|
|||
return env;
|
||||
}
|
||||
|
||||
private static void logJmxServiceUrl(InetAddress serverAddress, int port)
|
||||
@VisibleForTesting
|
||||
public static void logJmxServiceUrl(InetAddress serverAddress, int port)
|
||||
{
|
||||
String urlTemplate = "service:jmx:rmi://%1$s/jndi/rmi://%1$s:%2$d/jmxrmi";
|
||||
String hostName;
|
||||
|
|
@ -325,11 +328,11 @@ public class JMXServerUtils
|
|||
* Better to use the internal API than re-invent the wheel.
|
||||
*/
|
||||
@SuppressWarnings("restriction")
|
||||
private static class JmxRegistry extends sun.rmi.registry.RegistryImpl {
|
||||
public static class JmxRegistry extends sun.rmi.registry.RegistryImpl {
|
||||
private final String lookupName;
|
||||
private Remote remoteServerStub;
|
||||
|
||||
JmxRegistry(final int port,
|
||||
public JmxRegistry(final int port,
|
||||
final RMIClientSocketFactory csf,
|
||||
RMIServerSocketFactory ssf,
|
||||
final String lookupName) throws RemoteException {
|
||||
|
|
@ -362,5 +365,24 @@ public class JMXServerUtils
|
|||
public void setRemoteServerStub(Remote remoteServerStub) {
|
||||
this.remoteServerStub = remoteServerStub;
|
||||
}
|
||||
|
||||
/**
|
||||
* Closes the underlying JMX registry by unexporting this instance.
|
||||
* There is no reason to do this except for in-jvm dtests where we need
|
||||
* to stop the registry, so we can start with a clean slate for future cluster
|
||||
* builds, and the superclass never expects to be shut down and therefore doesn't
|
||||
* handle this edge case at all.
|
||||
*/
|
||||
@VisibleForTesting
|
||||
public void close() {
|
||||
try
|
||||
{
|
||||
UnicastRemoteObject.unexportObject(this, true);
|
||||
}
|
||||
catch (NoSuchObjectException ignored)
|
||||
{
|
||||
// Ignore if it's already unexported
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -19,15 +19,21 @@
|
|||
package org.apache.cassandra.utils;
|
||||
|
||||
import java.lang.management.ManagementFactory;
|
||||
import java.util.Collections;
|
||||
import java.util.Set;
|
||||
import java.util.UUID;
|
||||
import java.util.function.Consumer;
|
||||
import javax.management.MBeanServer;
|
||||
import javax.management.MBeanServerFactory;
|
||||
import javax.management.MalformedObjectNameException;
|
||||
import javax.management.ObjectName;
|
||||
import javax.management.QueryExp;
|
||||
|
||||
import org.slf4j.Logger;
|
||||
import org.slf4j.LoggerFactory;
|
||||
|
||||
import static org.apache.cassandra.config.CassandraRelevantProperties.IS_DISABLED_MBEAN_REGISTRATION;
|
||||
import static org.apache.cassandra.config.CassandraRelevantProperties.ORG_APACHE_CASSANDRA_DISABLE_MBEAN_REGISTRATION;
|
||||
import static org.apache.cassandra.config.CassandraRelevantProperties.DTEST_IS_IN_JVM_DTEST;
|
||||
import static org.apache.cassandra.config.CassandraRelevantProperties.MBEAN_REGISTRATION_CLASS;
|
||||
|
||||
/**
|
||||
|
|
@ -36,23 +42,46 @@ import static org.apache.cassandra.config.CassandraRelevantProperties.MBEAN_REGI
|
|||
*/
|
||||
public interface MBeanWrapper
|
||||
{
|
||||
static final Logger logger = LoggerFactory.getLogger(MBeanWrapper.class);
|
||||
Logger logger = LoggerFactory.getLogger(MBeanWrapper.class);
|
||||
|
||||
static final MBeanWrapper instance = create();
|
||||
MBeanWrapper instance = create();
|
||||
|
||||
static MBeanWrapper create()
|
||||
{
|
||||
if (IS_DISABLED_MBEAN_REGISTRATION.getBoolean())
|
||||
// If we're running in the in-jvm dtest environment, always use the delegating
|
||||
// mbean wrapper even if we start off with no-op, so it can be switched later
|
||||
if (DTEST_IS_IN_JVM_DTEST.getBoolean())
|
||||
{
|
||||
return new DelegatingMbeanWrapper(getMBeanWrapper());
|
||||
}
|
||||
|
||||
return getMBeanWrapper();
|
||||
}
|
||||
|
||||
static MBeanWrapper getMBeanWrapper()
|
||||
{
|
||||
if (ORG_APACHE_CASSANDRA_DISABLE_MBEAN_REGISTRATION.getBoolean())
|
||||
{
|
||||
return new NoOpMBeanWrapper();
|
||||
}
|
||||
|
||||
String klass = MBEAN_REGISTRATION_CLASS.getString();
|
||||
if (klass == null)
|
||||
return new PlatformMBeanWrapper();
|
||||
{
|
||||
if (DTEST_IS_IN_JVM_DTEST.getBoolean())
|
||||
{
|
||||
return new NoOpMBeanWrapper();
|
||||
}
|
||||
else
|
||||
{
|
||||
return new PlatformMBeanWrapper();
|
||||
}
|
||||
}
|
||||
return FBUtilities.construct(klass, "mbean");
|
||||
}
|
||||
|
||||
// Passing true for graceful will log exceptions instead of rethrowing them
|
||||
public void registerMBean(Object obj, ObjectName mbeanName, OnException onException);
|
||||
void registerMBean(Object obj, ObjectName mbeanName, OnException onException);
|
||||
default void registerMBean(Object obj, ObjectName mbeanName)
|
||||
{
|
||||
registerMBean(obj, mbeanName, OnException.THROW);
|
||||
|
|
@ -62,7 +91,9 @@ public interface MBeanWrapper
|
|||
{
|
||||
ObjectName name = create(mbeanName, onException);
|
||||
if (name == null)
|
||||
{
|
||||
return;
|
||||
}
|
||||
registerMBean(obj, name, onException);
|
||||
}
|
||||
default void registerMBean(Object obj, String mbeanName)
|
||||
|
|
@ -70,7 +101,7 @@ public interface MBeanWrapper
|
|||
registerMBean(obj, mbeanName, OnException.THROW);
|
||||
}
|
||||
|
||||
public boolean isRegistered(ObjectName mbeanName, OnException onException);
|
||||
boolean isRegistered(ObjectName mbeanName, OnException onException);
|
||||
default boolean isRegistered(ObjectName mbeanName)
|
||||
{
|
||||
return isRegistered(mbeanName, OnException.THROW);
|
||||
|
|
@ -80,7 +111,9 @@ public interface MBeanWrapper
|
|||
{
|
||||
ObjectName name = create(mbeanName, onException);
|
||||
if (name == null)
|
||||
{
|
||||
return false;
|
||||
}
|
||||
return isRegistered(name, onException);
|
||||
}
|
||||
default boolean isRegistered(String mbeanName)
|
||||
|
|
@ -88,7 +121,7 @@ public interface MBeanWrapper
|
|||
return isRegistered(mbeanName, OnException.THROW);
|
||||
}
|
||||
|
||||
public void unregisterMBean(ObjectName mbeanName, OnException onException);
|
||||
void unregisterMBean(ObjectName mbeanName, OnException onException);
|
||||
default void unregisterMBean(ObjectName mbeanName)
|
||||
{
|
||||
unregisterMBean(mbeanName, OnException.THROW);
|
||||
|
|
@ -98,7 +131,9 @@ public interface MBeanWrapper
|
|||
{
|
||||
ObjectName name = create(mbeanName, onException);
|
||||
if (name == null)
|
||||
{
|
||||
return;
|
||||
}
|
||||
unregisterMBean(name, onException);
|
||||
}
|
||||
default void unregisterMBean(String mbeanName)
|
||||
|
|
@ -119,7 +154,11 @@ public interface MBeanWrapper
|
|||
}
|
||||
}
|
||||
|
||||
static class NoOpMBeanWrapper implements MBeanWrapper
|
||||
Set<ObjectName> queryNames(ObjectName name, QueryExp query);
|
||||
|
||||
MBeanServer getMBeanServer();
|
||||
|
||||
class NoOpMBeanWrapper implements MBeanWrapper
|
||||
{
|
||||
public void registerMBean(Object obj, ObjectName mbeanName, OnException onException) {}
|
||||
public void registerMBean(Object obj, String mbeanName, OnException onException) {}
|
||||
|
|
@ -127,9 +166,11 @@ public interface MBeanWrapper
|
|||
public boolean isRegistered(String mbeanName, OnException onException) { return false; }
|
||||
public void unregisterMBean(ObjectName mbeanName, OnException onException) {}
|
||||
public void unregisterMBean(String mbeanName, OnException onException) {}
|
||||
public Set<ObjectName> queryNames(ObjectName name, QueryExp query) {return Collections.emptySet(); }
|
||||
public MBeanServer getMBeanServer() { return null; }
|
||||
}
|
||||
|
||||
static class PlatformMBeanWrapper implements MBeanWrapper
|
||||
class PlatformMBeanWrapper implements MBeanWrapper
|
||||
{
|
||||
private final MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();
|
||||
public void registerMBean(Object obj, ObjectName mbeanName, OnException onException)
|
||||
|
|
@ -168,9 +209,158 @@ public interface MBeanWrapper
|
|||
onException.handler.accept(e);
|
||||
}
|
||||
}
|
||||
|
||||
public Set<ObjectName> queryNames(ObjectName name, QueryExp query)
|
||||
{
|
||||
return mbs.queryNames(name, query);
|
||||
}
|
||||
|
||||
public MBeanServer getMBeanServer()
|
||||
{
|
||||
return mbs;
|
||||
}
|
||||
}
|
||||
|
||||
public enum OnException
|
||||
class InstanceMBeanWrapper implements MBeanWrapper
|
||||
{
|
||||
private MBeanServer mbs;
|
||||
public final UUID id = UUID.randomUUID();
|
||||
|
||||
public InstanceMBeanWrapper(String hostname)
|
||||
{
|
||||
mbs = MBeanServerFactory.createMBeanServer(hostname + "-" + id);
|
||||
}
|
||||
|
||||
public void registerMBean(Object obj, ObjectName mbeanName, OnException onException)
|
||||
{
|
||||
try
|
||||
{
|
||||
mbs.registerMBean(obj, mbeanName);
|
||||
}
|
||||
catch (Exception e)
|
||||
{
|
||||
onException.handler.accept(e);
|
||||
}
|
||||
}
|
||||
|
||||
public boolean isRegistered(ObjectName mbeanName, OnException onException)
|
||||
{
|
||||
try
|
||||
{
|
||||
return mbs.isRegistered(mbeanName);
|
||||
}
|
||||
catch (Exception e)
|
||||
{
|
||||
onException.handler.accept(e);
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
public void unregisterMBean(ObjectName mbeanName, OnException onException)
|
||||
{
|
||||
try
|
||||
{
|
||||
mbs.unregisterMBean(mbeanName);
|
||||
}
|
||||
catch (Exception e)
|
||||
{
|
||||
onException.handler.accept(e);
|
||||
}
|
||||
}
|
||||
|
||||
public Set<ObjectName> queryNames(ObjectName name, QueryExp query)
|
||||
{
|
||||
return mbs.queryNames(name, query);
|
||||
}
|
||||
|
||||
public MBeanServer getMBeanServer()
|
||||
{
|
||||
return mbs;
|
||||
}
|
||||
|
||||
public void close() {
|
||||
mbs.queryNames(null, null).forEach(name -> {
|
||||
try {
|
||||
if (!name.getCanonicalName().contains("MBeanServerDelegate"))
|
||||
{
|
||||
mbs.unregisterMBean(name);
|
||||
}
|
||||
} catch (Throwable e) {
|
||||
logger.debug("Could not unregister mbean {}", name.getCanonicalName());
|
||||
}
|
||||
});
|
||||
MBeanServerFactory.releaseMBeanServer(mbs);
|
||||
mbs = null;
|
||||
}
|
||||
}
|
||||
|
||||
class DelegatingMbeanWrapper implements MBeanWrapper
|
||||
{
|
||||
MBeanWrapper delegate;
|
||||
|
||||
public DelegatingMbeanWrapper(MBeanWrapper mBeanWrapper)
|
||||
{
|
||||
delegate = mBeanWrapper;
|
||||
}
|
||||
|
||||
public void setDelegate(MBeanWrapper wrapper) {
|
||||
delegate = wrapper;
|
||||
}
|
||||
|
||||
public MBeanWrapper getDelegate()
|
||||
{
|
||||
return delegate;
|
||||
}
|
||||
|
||||
public void registerMBean(Object obj, ObjectName mbeanName, OnException onException)
|
||||
{
|
||||
try
|
||||
{
|
||||
delegate.registerMBean(obj, mbeanName);
|
||||
}
|
||||
catch (Exception e)
|
||||
{
|
||||
onException.handler.accept(e);
|
||||
}
|
||||
}
|
||||
|
||||
public boolean isRegistered(ObjectName mbeanName, OnException onException)
|
||||
{
|
||||
try
|
||||
{
|
||||
return delegate.isRegistered(mbeanName);
|
||||
}
|
||||
catch (Exception e)
|
||||
{
|
||||
onException.handler.accept(e);
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
public void unregisterMBean(ObjectName mbeanName, OnException onException)
|
||||
{
|
||||
try
|
||||
{
|
||||
delegate.unregisterMBean(mbeanName);
|
||||
}
|
||||
catch (Exception e)
|
||||
{
|
||||
onException.handler.accept(e);
|
||||
}
|
||||
}
|
||||
|
||||
public Set<ObjectName> queryNames(ObjectName name, QueryExp query)
|
||||
{
|
||||
return delegate.queryNames(name, query);
|
||||
}
|
||||
|
||||
public MBeanServer getMBeanServer()
|
||||
{
|
||||
return delegate.getMBeanServer();
|
||||
}
|
||||
}
|
||||
|
||||
enum OnException
|
||||
{
|
||||
THROW(e -> { throw new RuntimeException(e); }),
|
||||
LOG(e -> { logger.error("Error in MBean wrapper: ", e); }),
|
||||
|
|
|
|||
|
|
@ -0,0 +1,62 @@
|
|||
/*
|
||||
* Licensed to the Apache Software Foundation (ASF) under one
|
||||
* or more contributor license agreements. See the NOTICE file
|
||||
* distributed with this work for additional information
|
||||
* regarding copyright ownership. The ASF licenses this file
|
||||
* to you under the Apache License, Version 2.0 (the
|
||||
* "License"); you may not use this file except in compliance
|
||||
* with the License. You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
||||
package org.apache.cassandra.utils;
|
||||
|
||||
import java.io.IOException;
|
||||
import java.io.Serializable;
|
||||
import java.net.InetAddress;
|
||||
import java.net.Socket;
|
||||
import java.rmi.server.RMIClientSocketFactory;
|
||||
import java.util.Objects;
|
||||
|
||||
/**
|
||||
* This class is used to override the local address the JMX client calculates when trying to connect,
|
||||
* which can otherwise be influenced by the system property "java.rmi.server.hostname" in strange and
|
||||
* unpredictable ways.
|
||||
*/
|
||||
public class RMIClientSocketFactoryImpl implements RMIClientSocketFactory, Serializable
|
||||
{
|
||||
private final InetAddress localAddress;
|
||||
|
||||
public RMIClientSocketFactoryImpl(InetAddress localAddress)
|
||||
{
|
||||
this.localAddress = localAddress;
|
||||
}
|
||||
|
||||
@Override
|
||||
public Socket createSocket(String host, int port) throws IOException
|
||||
{
|
||||
return new Socket(localAddress, port);
|
||||
}
|
||||
|
||||
@Override
|
||||
public boolean equals(Object o)
|
||||
{
|
||||
if (this == o) return true;
|
||||
if (o == null || getClass() != o.getClass()) return false;
|
||||
RMIClientSocketFactoryImpl that = (RMIClientSocketFactoryImpl) o;
|
||||
return Objects.equals(localAddress, that.localAddress);
|
||||
}
|
||||
|
||||
@Override
|
||||
public int hashCode()
|
||||
{
|
||||
return Objects.hash(localAddress);
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,55 @@
|
|||
/*
|
||||
* Licensed to the Apache Software Foundation (ASF) under one
|
||||
* or more contributor license agreements. See the NOTICE file
|
||||
* distributed with this work for additional information
|
||||
* regarding copyright ownership. The ASF licenses this file
|
||||
* to you under the Apache License, Version 2.0 (the
|
||||
* "License"); you may not use this file except in compliance
|
||||
* with the License. You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
||||
package org.apache.cassandra.utils;
|
||||
|
||||
import java.lang.reflect.Field;
|
||||
import java.lang.reflect.Method;
|
||||
|
||||
public class ReflectionUtils {
|
||||
public static Field getField(Class<?> clazz, String fieldName) throws NoSuchFieldException
|
||||
{
|
||||
// below code works before Java 12
|
||||
try
|
||||
{
|
||||
return clazz.getDeclaredField(fieldName);
|
||||
}
|
||||
catch (NoSuchFieldException e)
|
||||
{
|
||||
// this is mitigation for JDK 17 (https://bugs.openjdk.org/browse/JDK-8210522)
|
||||
try
|
||||
{
|
||||
Method getDeclaredFields0 = Class.class.getDeclaredMethod("getDeclaredFields0", boolean.class);
|
||||
getDeclaredFields0.setAccessible(true);
|
||||
Field[] fields = (Field[]) getDeclaredFields0.invoke(clazz, false);
|
||||
for (Field field : fields)
|
||||
{
|
||||
if (fieldName.equals(field.getName()))
|
||||
{
|
||||
return field;
|
||||
}
|
||||
}
|
||||
}
|
||||
catch (ReflectiveOperationException ex)
|
||||
{
|
||||
e.addSuppressed(ex);
|
||||
}
|
||||
throw e;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -186,6 +186,8 @@ public abstract class AbstractCluster<I extends IInstance> implements ICluster<I
|
|||
private ShutdownExecutor shutdownExecutor = DEFAULT_SHUTDOWN_EXECUTOR;
|
||||
|
||||
{
|
||||
// Indicate that we are running in the in-jvm dtest environment
|
||||
CassandraRelevantProperties.DTEST_IS_IN_JVM_DTEST.setBoolean(true);
|
||||
// those properties may be set for unit-test optimizations; those should not be used when running dtests
|
||||
CassandraRelevantProperties.FLUSH_LOCAL_SCHEMA_CHANGES.reset();
|
||||
CassandraRelevantProperties.NON_GRACEFUL_SHUTDOWN.reset();
|
||||
|
|
@ -663,6 +665,16 @@ public abstract class AbstractCluster<I extends IInstance> implements ICluster<I
|
|||
return instanceMap.get(addr);
|
||||
}
|
||||
|
||||
public List<I> get(int... nodes)
|
||||
{
|
||||
if (nodes == null || nodes.length == 0)
|
||||
throw new IllegalArgumentException("No nodes provided");
|
||||
List<I> list = new ArrayList<>(nodes.length);
|
||||
for (int i : nodes)
|
||||
list.add(get(i));
|
||||
return list;
|
||||
}
|
||||
|
||||
public I getFirstRunningInstance()
|
||||
{
|
||||
return stream().filter(i -> !i.isShutdown()).findFirst().orElseThrow(
|
||||
|
|
|
|||
|
|
@ -0,0 +1,87 @@
|
|||
/*
|
||||
* Licensed to the Apache Software Foundation (ASF) under one
|
||||
* or more contributor license agreements. See the NOTICE file
|
||||
* distributed with this work for additional information
|
||||
* regarding copyright ownership. The ASF licenses this file
|
||||
* to you under the Apache License, Version 2.0 (the
|
||||
* "License"); you may not use this file except in compliance
|
||||
* with the License. You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
||||
package org.apache.cassandra.distributed.impl;
|
||||
|
||||
import java.io.IOException;
|
||||
import java.net.InetAddress;
|
||||
import java.net.ServerSocket;
|
||||
import java.net.SocketException;
|
||||
import java.rmi.server.RMIServerSocketFactory;
|
||||
import java.util.ArrayList;
|
||||
import java.util.List;
|
||||
import java.util.Objects;
|
||||
import javax.net.ServerSocketFactory;
|
||||
|
||||
|
||||
/**
|
||||
* This class is used to keep track of RMI servers created during a cluster creation so we can
|
||||
* later close the sockets, which would otherwise be left with a thread running waiting for
|
||||
* connections that would never show up as the server was otherwise closed.
|
||||
*/
|
||||
class CollectingRMIServerSocketFactoryImpl implements RMIServerSocketFactory
|
||||
{
|
||||
private final InetAddress bindAddress;
|
||||
List<ServerSocket> sockets = new ArrayList<>();
|
||||
|
||||
public CollectingRMIServerSocketFactoryImpl(InetAddress bindAddress)
|
||||
{
|
||||
this.bindAddress = bindAddress;
|
||||
}
|
||||
|
||||
@Override
|
||||
public ServerSocket createServerSocket(int pPort) throws IOException
|
||||
{
|
||||
ServerSocket result = ServerSocketFactory.getDefault().createServerSocket(pPort, 0, bindAddress);
|
||||
try
|
||||
{
|
||||
result.setReuseAddress(true);
|
||||
}
|
||||
catch (SocketException e)
|
||||
{
|
||||
result.close();
|
||||
throw e;
|
||||
}
|
||||
sockets.add(result);
|
||||
return result;
|
||||
}
|
||||
|
||||
|
||||
public void close() throws IOException
|
||||
{
|
||||
for (ServerSocket socket : sockets)
|
||||
{
|
||||
socket.close();
|
||||
}
|
||||
}
|
||||
|
||||
@Override
|
||||
public boolean equals(Object o)
|
||||
{
|
||||
if (this == o) return true;
|
||||
if (o == null || getClass() != o.getClass()) return false;
|
||||
CollectingRMIServerSocketFactoryImpl that = (CollectingRMIServerSocketFactoryImpl) o;
|
||||
return Objects.equals(bindAddress, that.bindAddress);
|
||||
}
|
||||
|
||||
@Override
|
||||
public int hashCode()
|
||||
{
|
||||
return Objects.hash(bindAddress);
|
||||
}
|
||||
}
|
||||
|
|
@ -56,6 +56,11 @@ public interface INodeProvisionStrategy
|
|||
{
|
||||
return 9041 + nodeNum;
|
||||
}
|
||||
|
||||
public int jmxPort(int nodeNum)
|
||||
{
|
||||
return 7199 + nodeNum;
|
||||
}
|
||||
};
|
||||
}
|
||||
},
|
||||
|
|
@ -89,6 +94,11 @@ public interface INodeProvisionStrategy
|
|||
{
|
||||
return 9042;
|
||||
}
|
||||
|
||||
public int jmxPort(int nodeNum)
|
||||
{
|
||||
return 7199;
|
||||
}
|
||||
};
|
||||
}
|
||||
};
|
||||
|
|
@ -100,4 +110,5 @@ public interface INodeProvisionStrategy
|
|||
abstract String ipAddress(int nodeNum);
|
||||
abstract int storagePort(int nodeNum);
|
||||
abstract int nativeTransportPort(int nodeNum);
|
||||
abstract int jmxPort(int nodeNum);
|
||||
}
|
||||
|
|
|
|||
|
|
@ -42,6 +42,8 @@ import java.util.stream.Stream;
|
|||
import javax.management.ListenerNotFoundException;
|
||||
import javax.management.Notification;
|
||||
import javax.management.NotificationListener;
|
||||
import javax.management.remote.JMXConnectorServer;
|
||||
import javax.management.remote.rmi.RMIJRMPServerImpl;
|
||||
|
||||
import com.google.common.annotations.VisibleForTesting;
|
||||
import com.google.common.util.concurrent.Uninterruptibles;
|
||||
|
|
@ -143,7 +145,10 @@ import org.apache.cassandra.utils.Closeable;
|
|||
import org.apache.cassandra.utils.DiagnosticSnapshotService;
|
||||
import org.apache.cassandra.utils.ExecutorUtils;
|
||||
import org.apache.cassandra.utils.FBUtilities;
|
||||
import org.apache.cassandra.utils.JMXServerUtils;
|
||||
import org.apache.cassandra.utils.JVMStabilityInspector;
|
||||
import org.apache.cassandra.utils.MBeanWrapper;
|
||||
import org.apache.cassandra.utils.RMIClientSocketFactoryImpl;
|
||||
import org.apache.cassandra.utils.Throwables;
|
||||
import org.apache.cassandra.utils.concurrent.Ref;
|
||||
import org.apache.cassandra.utils.memory.BufferPools;
|
||||
|
|
@ -153,6 +158,7 @@ import static java.util.concurrent.TimeUnit.MINUTES;
|
|||
import static org.apache.cassandra.concurrent.ExecutorFactory.Global.executorFactory;
|
||||
import static org.apache.cassandra.distributed.api.Feature.BLANK_GOSSIP;
|
||||
import static org.apache.cassandra.distributed.api.Feature.GOSSIP;
|
||||
import static org.apache.cassandra.distributed.api.Feature.JMX;
|
||||
import static org.apache.cassandra.distributed.api.Feature.NATIVE_PROTOCOL;
|
||||
import static org.apache.cassandra.distributed.api.Feature.NETWORK;
|
||||
import static org.apache.cassandra.distributed.impl.DistributedTestSnitch.fromCassandraInetAddressAndPort;
|
||||
|
|
@ -165,11 +171,19 @@ import static org.apache.cassandra.utils.Clock.Global.nanoTime;
|
|||
*/
|
||||
public class Instance extends IsolatedExecutor implements IInvokableInstance
|
||||
{
|
||||
private static final int RMI_KEEPALIVE_TIME = 1000;
|
||||
private Logger inInstancelogger; // Defer creation until running in the instance context
|
||||
public final IInstanceConfig config;
|
||||
private volatile boolean initialized = false;
|
||||
private volatile boolean internodeMessagingStarted = false;
|
||||
private final AtomicLong startedAt = new AtomicLong();
|
||||
private JMXConnectorServer jmxConnectorServer;
|
||||
private JMXServerUtils.JmxRegistry registry;
|
||||
private RMIJRMPServerImpl jmxRmiServer;
|
||||
private MBeanWrapper.InstanceMBeanWrapper wrapper;
|
||||
private RMIClientSocketFactoryImpl clientSocketFactory;
|
||||
private CollectingRMIServerSocketFactoryImpl serverSocketFactory;
|
||||
private IsolatedJmx isolatedJmx;
|
||||
|
||||
@Deprecated
|
||||
Instance(IInstanceConfig config, ClassLoader classLoader)
|
||||
|
|
@ -589,6 +603,9 @@ public class Instance extends IsolatedExecutor implements IInvokableInstance
|
|||
config.networkTopology(), config.broadcastAddress());
|
||||
DistributedTestSnitch.assign(config.networkTopology());
|
||||
|
||||
if (config.has(JMX))
|
||||
startJmx();
|
||||
|
||||
DatabaseDescriptor.daemonInitialization();
|
||||
FileUtils.setFSErrorHandler(new DefaultFSErrorHandler());
|
||||
DatabaseDescriptor.createAllDirectories();
|
||||
|
|
@ -738,6 +755,20 @@ public class Instance extends IsolatedExecutor implements IInvokableInstance
|
|||
initialized = true;
|
||||
}
|
||||
|
||||
private void startJmx()
|
||||
{
|
||||
this.isolatedJmx = new IsolatedJmx(this, inInstancelogger);
|
||||
isolatedJmx.startJmx();
|
||||
}
|
||||
|
||||
private void stopJmx() throws IllegalAccessException, NoSuchFieldException, InterruptedException
|
||||
{
|
||||
if (config.has(JMX))
|
||||
{
|
||||
isolatedJmx.stopJmx();
|
||||
}
|
||||
}
|
||||
|
||||
// Update the messaging versions for all instances
|
||||
// that have initialized their configurations.
|
||||
private static void propagateMessagingVersions(ICluster cluster)
|
||||
|
|
@ -879,6 +910,8 @@ public class Instance extends IsolatedExecutor implements IInvokableInstance
|
|||
|
||||
// ScheduledExecutors shuts down after MessagingService, as MessagingService may issue tasks to it.
|
||||
error = parallelRun(error, executor, () -> ScheduledExecutors.shutdownNowAndWait(1L, MINUTES));
|
||||
|
||||
error = parallelRun(error, executor, this::stopJmx);
|
||||
|
||||
// Make sure any shutdown hooks registered for DeleteOnExit are released to prevent
|
||||
// references to the instance class loaders from being held
|
||||
|
|
|
|||
|
|
@ -41,6 +41,8 @@ import org.apache.cassandra.locator.SimpleSeedProvider;
|
|||
public class InstanceConfig implements IInstanceConfig
|
||||
{
|
||||
public final int num;
|
||||
private final int jmxPort;
|
||||
|
||||
public int num() { return num; }
|
||||
|
||||
private final NetworkTopology networkTopology;
|
||||
|
|
@ -71,7 +73,8 @@ public class InstanceConfig implements IInstanceConfig
|
|||
String cdc_raw_directory,
|
||||
Collection<String> initial_token,
|
||||
int storage_port,
|
||||
int native_transport_port)
|
||||
int native_transport_port,
|
||||
int jmx_port)
|
||||
{
|
||||
this.num = num;
|
||||
this.networkTopology = networkTopology;
|
||||
|
|
@ -113,6 +116,7 @@ public class InstanceConfig implements IInstanceConfig
|
|||
// legacy parameters
|
||||
.forceSet("commitlog_sync_batch_window_in_ms", "1");
|
||||
this.featureFlags = EnumSet.noneOf(Feature.class);
|
||||
this.jmxPort = jmx_port;
|
||||
}
|
||||
|
||||
private InstanceConfig(InstanceConfig copy)
|
||||
|
|
@ -124,6 +128,7 @@ public class InstanceConfig implements IInstanceConfig
|
|||
this.hostId = copy.hostId;
|
||||
this.featureFlags = copy.featureFlags;
|
||||
this.broadcastAddressAndPort = copy.broadcastAddressAndPort;
|
||||
this.jmxPort = copy.jmxPort;
|
||||
}
|
||||
|
||||
@Override
|
||||
|
|
@ -168,6 +173,12 @@ public class InstanceConfig implements IInstanceConfig
|
|||
return networkTopology().localDC(broadcastAddress());
|
||||
}
|
||||
|
||||
@Override
|
||||
public int jmxPort()
|
||||
{
|
||||
return this.jmxPort;
|
||||
}
|
||||
|
||||
public InstanceConfig with(Feature featureFlag)
|
||||
{
|
||||
featureFlags.add(featureFlag);
|
||||
|
|
@ -267,7 +278,8 @@ public class InstanceConfig implements IInstanceConfig
|
|||
String.format("%s/node%d/cdc", root, nodeNum),
|
||||
tokens,
|
||||
provisionStrategy.storagePort(nodeNum),
|
||||
provisionStrategy.nativeTransportPort(nodeNum));
|
||||
provisionStrategy.nativeTransportPort(nodeNum),
|
||||
provisionStrategy.jmxPort(nodeNum));
|
||||
}
|
||||
|
||||
private static String[] datadirs(int datadirCount, Path root, int nodeNum)
|
||||
|
|
|
|||
|
|
@ -0,0 +1,230 @@
|
|||
/*
|
||||
* Licensed to the Apache Software Foundation (ASF) under one
|
||||
* or more contributor license agreements. See the NOTICE file
|
||||
* distributed with this work for additional information
|
||||
* regarding copyright ownership. The ASF licenses this file
|
||||
* to you under the Apache License, Version 2.0 (the
|
||||
* "License"); you may not use this file except in compliance
|
||||
* with the License. You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
||||
package org.apache.cassandra.distributed.impl;
|
||||
|
||||
import java.lang.reflect.Field;
|
||||
import java.net.InetAddress;
|
||||
import java.net.MalformedURLException;
|
||||
import java.util.HashMap;
|
||||
import java.util.Iterator;
|
||||
import java.util.Map;
|
||||
|
||||
import javax.management.remote.JMXConnector;
|
||||
import javax.management.remote.JMXConnectorFactory;
|
||||
import javax.management.remote.JMXConnectorServer;
|
||||
import javax.management.remote.JMXServiceURL;
|
||||
import javax.management.remote.rmi.RMIConnectorServer;
|
||||
import javax.management.remote.rmi.RMIJRMPServerImpl;
|
||||
|
||||
import org.slf4j.Logger;
|
||||
|
||||
import org.apache.cassandra.distributed.api.IInstance;
|
||||
import org.apache.cassandra.distributed.api.IInstanceConfig;
|
||||
import org.apache.cassandra.utils.JMXServerUtils;
|
||||
import org.apache.cassandra.utils.MBeanWrapper;
|
||||
import org.apache.cassandra.utils.RMIClientSocketFactoryImpl;
|
||||
import org.apache.cassandra.utils.ReflectionUtils;
|
||||
import sun.rmi.transport.tcp.TCPEndpoint;
|
||||
|
||||
import static org.apache.cassandra.config.CassandraRelevantProperties.JAVA_RMI_DGC_LEASE_VALUE_IN_JVM_DTEST;
|
||||
import static org.apache.cassandra.config.CassandraRelevantProperties.ORG_APACHE_CASSANDRA_DISABLE_MBEAN_REGISTRATION;
|
||||
import static org.apache.cassandra.config.CassandraRelevantProperties.SUN_RMI_TRANSPORT_TCP_THREADKEEPALIVETIME;
|
||||
import static org.apache.cassandra.distributed.api.Feature.JMX;
|
||||
|
||||
public class IsolatedJmx
|
||||
{
|
||||
private static final int RMI_KEEPALIVE_TIME = 1000;
|
||||
|
||||
private JMXConnectorServer jmxConnectorServer;
|
||||
private JMXServerUtils.JmxRegistry registry;
|
||||
private RMIJRMPServerImpl jmxRmiServer;
|
||||
private MBeanWrapper.InstanceMBeanWrapper wrapper;
|
||||
private RMIClientSocketFactoryImpl clientSocketFactory;
|
||||
private CollectingRMIServerSocketFactoryImpl serverSocketFactory;
|
||||
private Logger inInstancelogger;
|
||||
private IInstanceConfig config;
|
||||
|
||||
public IsolatedJmx(IInstance instance, Logger inInstanceLogger) {
|
||||
this.config = instance.config();
|
||||
this.inInstancelogger = inInstanceLogger;
|
||||
}
|
||||
|
||||
public void startJmx() {
|
||||
try
|
||||
{
|
||||
// Several RMI threads hold references to in-jvm dtest objects, and are, by default, kept
|
||||
// alive for long enough (minutes) to keep classloaders from being collected.
|
||||
// Set these two system properties to a low value to allow cleanup to occur fast enough
|
||||
// for GC to collect our classloaders.
|
||||
JAVA_RMI_DGC_LEASE_VALUE_IN_JVM_DTEST.setInt(RMI_KEEPALIVE_TIME);
|
||||
SUN_RMI_TRANSPORT_TCP_THREADKEEPALIVETIME.setInt(RMI_KEEPALIVE_TIME);
|
||||
ORG_APACHE_CASSANDRA_DISABLE_MBEAN_REGISTRATION.setBoolean(false);
|
||||
InetAddress addr = config.broadcastAddress().getAddress();
|
||||
|
||||
int jmxPort = config.jmxPort();
|
||||
|
||||
String hostname = addr.getHostAddress();
|
||||
wrapper = new MBeanWrapper.InstanceMBeanWrapper(hostname + ":" + jmxPort);
|
||||
((MBeanWrapper.DelegatingMbeanWrapper) MBeanWrapper.instance).setDelegate(wrapper);
|
||||
Map<String, Object> env = new HashMap<>();
|
||||
|
||||
serverSocketFactory = new CollectingRMIServerSocketFactoryImpl(addr);
|
||||
env.put(RMIConnectorServer.RMI_SERVER_SOCKET_FACTORY_ATTRIBUTE,
|
||||
serverSocketFactory);
|
||||
clientSocketFactory = new RMIClientSocketFactoryImpl(addr);
|
||||
env.put(RMIConnectorServer.RMI_CLIENT_SOCKET_FACTORY_ATTRIBUTE,
|
||||
clientSocketFactory);
|
||||
|
||||
// configure the RMI registry
|
||||
registry = new JMXServerUtils.JmxRegistry(jmxPort,
|
||||
clientSocketFactory,
|
||||
serverSocketFactory,
|
||||
"jmxrmi");
|
||||
|
||||
// Mark the JMX server as a permanently exported object. This allows the JVM to exit with the
|
||||
// server running and also exempts it from the distributed GC scheduler which otherwise would
|
||||
// potentially attempt a full GC every `sun.rmi.dgc.server.gcInterval` millis (default is 3600000ms)
|
||||
// For more background see:
|
||||
// - CASSANDRA-2967
|
||||
// - https://www.jclarity.com/2015/01/27/rmi-system-gc-unplugged/
|
||||
// - https://bugs.openjdk.java.net/browse/JDK-6760712
|
||||
env.put("jmx.remote.x.daemon", "true");
|
||||
|
||||
// Set the port used to create subsequent connections to exported objects over RMI. This simplifies
|
||||
// configuration in firewalled environments, but it can't be used in conjuction with SSL sockets.
|
||||
// See: CASSANDRA-7087
|
||||
int rmiPort = config.jmxPort();
|
||||
|
||||
// We create the underlying RMIJRMPServerImpl so that we can manually bind it to the registry,
|
||||
// rather then specifying a binding address in the JMXServiceURL and letting it be done automatically
|
||||
// when the server is started. The reason for this is that if the registry is configured with SSL
|
||||
// sockets, the JMXConnectorServer acts as its client during the binding which means it needs to
|
||||
// have a truststore configured which contains the registry's certificate. Manually binding removes
|
||||
// this problem.
|
||||
// See CASSANDRA-12109.
|
||||
jmxRmiServer = new RMIJRMPServerImpl(rmiPort, clientSocketFactory, serverSocketFactory,
|
||||
env);
|
||||
JMXServiceURL serviceURL = new JMXServiceURL("rmi", hostname, rmiPort);
|
||||
jmxConnectorServer = new RMIConnectorServer(serviceURL, env, jmxRmiServer, wrapper.getMBeanServer());
|
||||
|
||||
jmxConnectorServer.start();
|
||||
|
||||
registry.setRemoteServerStub(jmxRmiServer.toStub());
|
||||
JMXServerUtils.logJmxServiceUrl(addr, jmxPort);
|
||||
waitForJmxAvailability(hostname, jmxPort, env);
|
||||
}
|
||||
catch (Throwable t)
|
||||
{
|
||||
throw new RuntimeException("Feature.JMX was enabled but could not be started.", t);
|
||||
}
|
||||
}
|
||||
|
||||
private void waitForJmxAvailability(String hostname, int rmiPort, Map<String, Object> env) throws InterruptedException, MalformedURLException
|
||||
{
|
||||
String url = String.format("service:jmx:rmi:///jndi/rmi://%s:%d/jmxrmi", hostname, rmiPort);
|
||||
JMXServiceURL serviceURL = new JMXServiceURL(url);
|
||||
int attempts = 0;
|
||||
Throwable lastThrown = null;
|
||||
while (attempts < 20)
|
||||
{
|
||||
attempts++;
|
||||
try (JMXConnector ignored = JMXConnectorFactory.connect(serviceURL, env))
|
||||
{
|
||||
inInstancelogger.info("Connected to JMX server at {} after {} attempt(s)",
|
||||
url, attempts);
|
||||
return;
|
||||
}
|
||||
catch (MalformedURLException e)
|
||||
{
|
||||
throw new RuntimeException(e);
|
||||
}
|
||||
catch (Throwable thrown)
|
||||
{
|
||||
lastThrown = thrown;
|
||||
}
|
||||
inInstancelogger.info("Could not connect to JMX on {} after {} attempts. Will retry.", url, attempts);
|
||||
Thread.sleep(1000);
|
||||
}
|
||||
throw new RuntimeException("Could not start JMX - unreachable after 20 attempts", lastThrown);
|
||||
}
|
||||
|
||||
public void stopJmx() throws IllegalAccessException, NoSuchFieldException, InterruptedException
|
||||
{
|
||||
if (!config.has(JMX))
|
||||
return;
|
||||
// First, swap the mbean wrapper back to a NoOp wrapper
|
||||
// This prevents later attempts to unregister mbeans from failing in Cassandra code, as we're going to
|
||||
// unregister all of them here
|
||||
((MBeanWrapper.DelegatingMbeanWrapper) MBeanWrapper.instance).setDelegate(new MBeanWrapper.NoOpMBeanWrapper());
|
||||
try
|
||||
{
|
||||
wrapper.close();
|
||||
}
|
||||
catch (Throwable e)
|
||||
{
|
||||
inInstancelogger.warn("failed to close wrapper.", e);
|
||||
}
|
||||
try
|
||||
{
|
||||
jmxConnectorServer.stop();
|
||||
}
|
||||
catch (Throwable e)
|
||||
{
|
||||
inInstancelogger.warn("failed to close jmxConnectorServer.", e);
|
||||
}
|
||||
try
|
||||
{
|
||||
registry.close();
|
||||
}
|
||||
catch (Throwable e)
|
||||
{
|
||||
inInstancelogger.warn("failed to close registry.", e);
|
||||
}
|
||||
try
|
||||
{
|
||||
serverSocketFactory.close();
|
||||
}
|
||||
catch (Throwable e)
|
||||
{
|
||||
inInstancelogger.warn("failed to close serverSocketFactory.", e);
|
||||
}
|
||||
// The TCPEndpoint class holds references to a class in the in-jvm dtest framework
|
||||
// which transitively has a reference to the InstanceClassLoader, so we need to
|
||||
// make sure to remove the reference to them when the instance is shutting down
|
||||
clearMapField(TCPEndpoint.class, null, "localEndpoints");
|
||||
Thread.sleep(2 * RMI_KEEPALIVE_TIME); // Double the keep-alive time to give Distributed GC some time to clean up
|
||||
}
|
||||
|
||||
private <K, V> void clearMapField(Class<?> clazz, Object instance, String mapName)
|
||||
throws IllegalAccessException, NoSuchFieldException {
|
||||
Field mapField = ReflectionUtils.getField(clazz, mapName);
|
||||
mapField.setAccessible(true);
|
||||
Map<K, V> map = (Map<K, V>) mapField.get(instance);
|
||||
// Because multiple instances can be shutting down at once,
|
||||
// synchronize on the map to avoid ConcurrentModificationException
|
||||
synchronized (map)
|
||||
{
|
||||
for (Iterator<Map.Entry<K, V>> it = map.entrySet().iterator(); it.hasNext(); )
|
||||
{
|
||||
it.next();
|
||||
it.remove();
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -26,21 +26,29 @@ import java.sql.Date;
|
|||
import java.text.SimpleDateFormat;
|
||||
import java.util.function.Consumer;
|
||||
import javax.management.MBeanServer;
|
||||
import javax.management.MBeanServerConnection;
|
||||
import javax.management.remote.JMXConnector;
|
||||
|
||||
import org.apache.cassandra.io.util.File;
|
||||
import org.junit.Assert;
|
||||
import org.junit.Ignore;
|
||||
import org.junit.Test;
|
||||
|
||||
import com.sun.management.HotSpotDiagnosticMXBean;
|
||||
import org.apache.cassandra.distributed.Cluster;
|
||||
import org.apache.cassandra.distributed.api.ConsistencyLevel;
|
||||
import org.apache.cassandra.distributed.api.Feature;
|
||||
import org.apache.cassandra.distributed.api.IInstanceConfig;
|
||||
import org.apache.cassandra.distributed.api.IInvokableInstance;
|
||||
import org.apache.cassandra.distributed.shared.JMXUtil;
|
||||
import org.apache.cassandra.io.util.File;
|
||||
import org.apache.cassandra.utils.SigarLibrary;
|
||||
|
||||
import static org.apache.cassandra.distributed.api.Feature.GOSSIP;
|
||||
import static org.apache.cassandra.distributed.api.Feature.JMX;
|
||||
import static org.apache.cassandra.distributed.api.Feature.NATIVE_PROTOCOL;
|
||||
import static org.apache.cassandra.distributed.api.Feature.NETWORK;
|
||||
import static org.apache.cassandra.utils.FBUtilities.now;
|
||||
import static org.hamcrest.Matchers.startsWith;
|
||||
|
||||
/* Resource Leak Test - useful when tracking down issues with in-JVM framework cleanup.
|
||||
* All objects referencing the InstanceClassLoader need to be garbage collected or
|
||||
|
|
@ -138,6 +146,11 @@ public class ResourceLeakTest extends TestBaseImpl
|
|||
}
|
||||
|
||||
void doTest(int numClusterNodes, Consumer<IInstanceConfig> updater) throws Throwable
|
||||
{
|
||||
doTest(numClusterNodes, updater, ignored -> {});
|
||||
}
|
||||
|
||||
void doTest(int numClusterNodes, Consumer<IInstanceConfig> updater, Consumer<Cluster> actionToPerform) throws Throwable
|
||||
{
|
||||
for (int loop = 0; loop < numTestLoops; loop++)
|
||||
{
|
||||
|
|
@ -149,6 +162,7 @@ public class ResourceLeakTest extends TestBaseImpl
|
|||
cluster.schemaChange("CREATE TABLE " + KEYSPACE + "." + tableName + " (pk int, ck int, v int, PRIMARY KEY (pk, ck))");
|
||||
cluster.coordinator(1).execute("INSERT INTO " + KEYSPACE + "." + tableName + "(pk,ck,v) VALUES (0,0,0)", ConsistencyLevel.ALL);
|
||||
cluster.get(1).flush(KEYSPACE);
|
||||
actionToPerform.accept(cluster);
|
||||
if (dumpEveryLoop)
|
||||
{
|
||||
dumpResources(String.format("loop%03d", loop));
|
||||
|
|
@ -207,4 +221,50 @@ public class ResourceLeakTest extends TestBaseImpl
|
|||
}
|
||||
dumpResources("final-native");
|
||||
}
|
||||
|
||||
@Test
|
||||
public void looperJmxTest() throws Throwable
|
||||
{
|
||||
doTest(1, config -> config.with(JMX), cluster -> {
|
||||
// NOTE: At some point, the hostname of the broadcastAddress can be resolved
|
||||
// and then the `getHostString`, which would otherwise return the IP address,
|
||||
// starts returning `localhost` - use `.getAddress().getHostAddress()` to work around this.
|
||||
for (IInvokableInstance instance:cluster.get(1, cluster.size()))
|
||||
{
|
||||
IInstanceConfig config = instance.config();
|
||||
try (JMXConnector jmxc = JMXUtil.getJmxConnector(config))
|
||||
{
|
||||
MBeanServerConnection mbsc = jmxc.getMBeanServerConnection();
|
||||
// instances get their default domain set to their IP address, so us it
|
||||
// to check that we are actually connecting to the correct instance
|
||||
String defaultDomain = mbsc.getDefaultDomain();
|
||||
Assert.assertThat(defaultDomain, startsWith(JMXUtil.getJmxHost(config) + ":" + config.jmxPort()));
|
||||
}
|
||||
catch (IOException e)
|
||||
{
|
||||
throw new RuntimeException(e);
|
||||
}
|
||||
}
|
||||
});
|
||||
if (forceCollection)
|
||||
{
|
||||
System.runFinalization();
|
||||
System.gc();
|
||||
Thread.sleep(finalWaitMillis);
|
||||
}
|
||||
dumpResources("final-jmx");
|
||||
}
|
||||
|
||||
@Test
|
||||
public void looperEverythingTest() throws Throwable
|
||||
{
|
||||
doTest(1, config -> config.with(Feature.values()));
|
||||
if (forceCollection)
|
||||
{
|
||||
System.runFinalization();
|
||||
System.gc();
|
||||
Thread.sleep(finalWaitMillis);
|
||||
}
|
||||
dumpResources("final-everything");
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -0,0 +1,113 @@
|
|||
/*
|
||||
* Licensed to the Apache Software Foundation (ASF) under one
|
||||
* or more contributor license agreements. See the NOTICE file
|
||||
* distributed with this work for additional information
|
||||
* regarding copyright ownership. The ASF licenses this file
|
||||
* to you under the Apache License, Version 2.0 (the
|
||||
* "License"); you may not use this file except in compliance
|
||||
* with the License. You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
||||
package org.apache.cassandra.distributed.test.jmx;
|
||||
|
||||
import java.io.IOException;
|
||||
import java.util.HashSet;
|
||||
import java.util.Set;
|
||||
import javax.management.MBeanServerConnection;
|
||||
import javax.management.remote.JMXConnector;
|
||||
|
||||
import org.junit.Assert;
|
||||
import org.junit.Test;
|
||||
|
||||
import org.apache.cassandra.distributed.Cluster;
|
||||
import org.apache.cassandra.distributed.api.Feature;
|
||||
import org.apache.cassandra.distributed.api.IInstanceConfig;
|
||||
import org.apache.cassandra.distributed.api.IInvokableInstance;
|
||||
import org.apache.cassandra.distributed.impl.INodeProvisionStrategy;
|
||||
import org.apache.cassandra.distributed.shared.JMXUtil;
|
||||
import org.apache.cassandra.distributed.test.TestBaseImpl;
|
||||
|
||||
import static org.hamcrest.Matchers.startsWith;
|
||||
|
||||
public class JMXFeatureTest extends TestBaseImpl
|
||||
{
|
||||
|
||||
/**
|
||||
* Test the in-jvm dtest JMX feature.
|
||||
* - Create a cluster with multiple JMX servers, one per instance
|
||||
* - Test that when connecting, we get the correct MBeanServer by checking the default domain, which is set to the IP of the instance
|
||||
* - Run the test multiple times to ensure cleanup of the JMX servers is complete so the next test can run successfully using the same host/port.
|
||||
*
|
||||
* @throws Exception
|
||||
*/
|
||||
@Test
|
||||
public void testMultipleNetworkInterfacesProvisioning() throws Exception
|
||||
{
|
||||
int iterations = 2; // Make sure the JMX infrastructure all cleans up properly by running this multiple times.
|
||||
Set<String> allInstances = new HashSet<>();
|
||||
for (int i = 0; i < iterations; i++)
|
||||
{
|
||||
try (Cluster cluster = Cluster.build(2)
|
||||
.withNodeProvisionStrategy(INodeProvisionStrategy.Strategy.MultipleNetworkInterfaces)
|
||||
.withConfig(c -> c.with(Feature.values())).start())
|
||||
{
|
||||
Set<String> instancesContacted = new HashSet<>();
|
||||
for (IInvokableInstance instance : cluster.get(1, 2))
|
||||
{
|
||||
testInstance(instancesContacted, instance);
|
||||
}
|
||||
Assert.assertEquals("Should have connected with both JMX instances.", 2, instancesContacted.size());
|
||||
allInstances.addAll(instancesContacted);
|
||||
}
|
||||
}
|
||||
Assert.assertEquals("Each instance from each cluster should have been unique", iterations * 2, allInstances.size());
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testOneNetworkInterfaceProvisioning() throws Exception
|
||||
{
|
||||
int iterations = 2; // Make sure the JMX infrastructure all cleans up properly by running this multiple times.
|
||||
Set<String> allInstances = new HashSet<>();
|
||||
for (int i = 0; i < iterations; i++)
|
||||
{
|
||||
try (Cluster cluster = Cluster.build(2)
|
||||
.withNodeProvisionStrategy(INodeProvisionStrategy.Strategy.OneNetworkInterface)
|
||||
.withConfig(c -> c.with(Feature.values())).start())
|
||||
{
|
||||
Set<String> instancesContacted = new HashSet<>();
|
||||
for (IInvokableInstance instance : cluster.get(1, 2))
|
||||
{
|
||||
testInstance(instancesContacted, instance);
|
||||
}
|
||||
Assert.assertEquals("Should have connected with both JMX instances.", 2, instancesContacted.size());
|
||||
allInstances.addAll(instancesContacted);
|
||||
}
|
||||
}
|
||||
Assert.assertEquals("Each instance from each cluster should have been unique", iterations * 2, allInstances.size());
|
||||
}
|
||||
|
||||
private void testInstance(Set<String> instancesContacted, IInvokableInstance instance) throws IOException
|
||||
{
|
||||
// NOTE: At some point, the hostname of the broadcastAddress can be resolved
|
||||
// and then the `getHostString`, which would otherwise return the IP address,
|
||||
// starts returning `localhost` - use `.getAddress().getHostAddress()` to work around this.
|
||||
IInstanceConfig config = instance.config();
|
||||
try (JMXConnector jmxc = JMXUtil.getJmxConnector(config))
|
||||
{
|
||||
MBeanServerConnection mbsc = jmxc.getMBeanServerConnection();
|
||||
// instances get their default domain set to their IP address, so us it
|
||||
// to check that we are actually connecting to the correct instance
|
||||
String defaultDomain = mbsc.getDefaultDomain();
|
||||
instancesContacted.add(defaultDomain);
|
||||
Assert.assertThat(defaultDomain, startsWith(JMXUtil.getJmxHost(config) + ":" + config.jmxPort()));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -17,7 +17,6 @@
|
|||
*/
|
||||
package org.apache.cassandra.distributed.test.jmx;
|
||||
|
||||
import java.net.InetAddress;
|
||||
import java.util.ArrayList;
|
||||
import java.util.Collections;
|
||||
import java.util.List;
|
||||
|
|
@ -31,7 +30,6 @@ import javax.management.MBeanServerConnection;
|
|||
import javax.management.ObjectName;
|
||||
import javax.management.remote.JMXConnector;
|
||||
import javax.management.remote.JMXConnectorFactory;
|
||||
import javax.management.remote.JMXConnectorServer;
|
||||
import javax.management.remote.JMXServiceURL;
|
||||
|
||||
import com.google.common.collect.ImmutableSet;
|
||||
|
|
@ -39,11 +37,8 @@ import org.junit.Test;
|
|||
|
||||
import org.apache.cassandra.distributed.Cluster;
|
||||
import org.apache.cassandra.distributed.api.Feature;
|
||||
import org.apache.cassandra.distributed.api.IInvokableInstance;
|
||||
import org.apache.cassandra.distributed.test.TestBaseImpl;
|
||||
import org.apache.cassandra.utils.JMXServerUtils;
|
||||
|
||||
import static org.apache.cassandra.config.CassandraRelevantProperties.IS_DISABLED_MBEAN_REGISTRATION;
|
||||
import static org.apache.cassandra.cql3.CQLTester.getAutomaticallyAllocatedPort;
|
||||
|
||||
public class JMXGetterCheckTest extends TestBaseImpl
|
||||
{
|
||||
|
|
@ -57,20 +52,17 @@ public class JMXGetterCheckTest extends TestBaseImpl
|
|||
"org.apache.cassandra.db:type=StorageService:resetLocalSchema" // this will fail when there are no other nodes which can serve schema
|
||||
);
|
||||
|
||||
@Test
|
||||
public void test() throws Exception
|
||||
{
|
||||
// start JMX server, which the instance will register with
|
||||
InetAddress loopback = InetAddress.getLoopbackAddress();
|
||||
String jmxHost = loopback.getHostAddress();
|
||||
int jmxPort = getAutomaticallyAllocatedPort(loopback);
|
||||
JMXConnectorServer jmxServer = JMXServerUtils.createJMXServer(jmxPort, true);
|
||||
jmxServer.start();
|
||||
String url = "service:jmx:rmi:///jndi/rmi://" + jmxHost + ":" + jmxPort + "/jmxrmi";
|
||||
public static final String JMX_SERVICE_URL_FMT = "service:jmx:rmi:///jndi/rmi://%s:%d/jmxrmi";
|
||||
|
||||
IS_DISABLED_MBEAN_REGISTRATION.setBoolean(false);
|
||||
@Test
|
||||
public void testGetters() throws Exception
|
||||
{
|
||||
try (Cluster cluster = Cluster.build(1).withConfig(c -> c.with(Feature.values())).start())
|
||||
{
|
||||
IInvokableInstance instance = cluster.get(1);
|
||||
|
||||
String jmxHost = instance.config().broadcastAddress().getAddress().getHostAddress();
|
||||
String url = String.format(JMX_SERVICE_URL_FMT, jmxHost, instance.config().jmxPort());
|
||||
List<Named> errors = new ArrayList<>();
|
||||
try (JMXConnector jmxc = JMXConnectorFactory.connect(new JMXServiceURL(url), null))
|
||||
{
|
||||
|
|
@ -122,7 +114,7 @@ public class JMXGetterCheckTest extends TestBaseImpl
|
|||
}
|
||||
|
||||
/**
|
||||
* This class is meant to make new errors easier to read, by adding the JMX endpoint, and cleaning up the unneded JMX/Reflection logic cluttering the stacktrace
|
||||
* This class is meant to make new errors easier to read, by adding the JMX endpoint, and cleaning up the unneeded JMX/Reflection logic cluttering the stacktrace
|
||||
*/
|
||||
private static class Named extends RuntimeException
|
||||
{
|
||||
|
|
|
|||
|
|
@ -29,7 +29,9 @@ import java.util.concurrent.ConcurrentMap;
|
|||
import java.util.stream.Collectors;
|
||||
import javax.management.InstanceAlreadyExistsException;
|
||||
import javax.management.InstanceNotFoundException;
|
||||
import javax.management.MBeanServer;
|
||||
import javax.management.ObjectName;
|
||||
import javax.management.QueryExp;
|
||||
|
||||
import com.google.common.collect.ImmutableSet;
|
||||
import org.junit.Assert;
|
||||
|
|
@ -57,7 +59,6 @@ public class TableMetricTest extends TestBaseImpl
|
|||
MBEAN_REGISTRATION_CLASS.setString(MapMBeanWrapper.class.getName());
|
||||
IS_DISABLED_MBEAN_REGISTRATION.setBoolean(false);
|
||||
}
|
||||
|
||||
private static volatile Map<String, Collection<String>> SYSTEM_TABLES = null;
|
||||
private static Set<String> TABLE_METRIC_NAMES = ImmutableSet.of("WriteLatency");
|
||||
|
||||
|
|
@ -165,7 +166,7 @@ public class TableMetricTest extends TestBaseImpl
|
|||
{
|
||||
inst.runOnInstance(() -> {
|
||||
// cast only to make sure it linked properly
|
||||
MapMBeanWrapper mbeans = (MapMBeanWrapper) MBeanWrapper.instance;
|
||||
MapMBeanWrapper mbeans = getMapMBeanWrapper();
|
||||
Assert.assertTrue("Unable to find table mbean for " + keyspace + "." + table,
|
||||
mbeans.isRegistered(ColumnFamilyStore.getTableMBeanName(keyspace, table, false)));
|
||||
Assert.assertTrue("Unable to find column family mbean for " + keyspace + "." + table,
|
||||
|
|
@ -177,7 +178,7 @@ public class TableMetricTest extends TestBaseImpl
|
|||
{
|
||||
inst.runOnInstance(() -> {
|
||||
// cast only to make sure it linked properly
|
||||
MapMBeanWrapper mbeans = (MapMBeanWrapper) MBeanWrapper.instance;
|
||||
MapMBeanWrapper mbeans = getMapMBeanWrapper();
|
||||
Assert.assertFalse("Found table mbean for " + keyspace + "." + table,
|
||||
mbeans.isRegistered(ColumnFamilyStore.getTableMBeanName(keyspace, table, false)));
|
||||
Assert.assertFalse("Found column family mbean for " + keyspace + "." + table,
|
||||
|
|
@ -189,7 +190,7 @@ public class TableMetricTest extends TestBaseImpl
|
|||
{
|
||||
inst.runOnInstance(() -> {
|
||||
// cast only to make sure it linked properly
|
||||
MapMBeanWrapper mbeans = (MapMBeanWrapper) MBeanWrapper.instance;
|
||||
MapMBeanWrapper mbeans = getMapMBeanWrapper();
|
||||
String mbean = getTableMetricName(keyspace, table, name);
|
||||
Assert.assertTrue("Unable to find metric " + name + " for " + keyspace + "." + table, mbeans.isRegistered(mbean));
|
||||
|
||||
|
|
@ -203,7 +204,7 @@ public class TableMetricTest extends TestBaseImpl
|
|||
{
|
||||
inst.runOnInstance(() -> {
|
||||
// cast only to make sure it linked properly
|
||||
MapMBeanWrapper mbeans = (MapMBeanWrapper) MBeanWrapper.instance;
|
||||
MapMBeanWrapper mbeans = getMapMBeanWrapper();
|
||||
String mbean = getTableMetricName(keyspace, table, name);
|
||||
Assert.assertFalse("Found metric " + name + " for " + keyspace + "." + table, mbeans.isRegistered(mbean));
|
||||
|
||||
|
|
@ -226,7 +227,7 @@ public class TableMetricTest extends TestBaseImpl
|
|||
{
|
||||
inst.runOnInstance(() -> {
|
||||
// cast only to make sure it linked properly
|
||||
MapMBeanWrapper mbeans = (MapMBeanWrapper) MBeanWrapper.instance;
|
||||
MapMBeanWrapper mbeans = getMapMBeanWrapper();
|
||||
|
||||
String keyspaceMBean = getKeyspaceMetricName(keyspace, name);
|
||||
Assert.assertFalse("Found keyspace metric " + keyspaceMBean + " for " + keyspace, mbeans.isRegistered(keyspaceMBean));
|
||||
|
|
@ -243,6 +244,10 @@ public class TableMetricTest extends TestBaseImpl
|
|||
return String.format("org.apache.cassandra.metrics:type=Table,keyspace=%s,scope=%s,name=%s", keyspace, table, name);
|
||||
}
|
||||
|
||||
private static MapMBeanWrapper getMapMBeanWrapper()
|
||||
{
|
||||
return (MapMBeanWrapper) ((MBeanWrapper.DelegatingMbeanWrapper)MBeanWrapper.instance).getDelegate();
|
||||
}
|
||||
public static final class MapMBeanWrapper implements MBeanWrapper
|
||||
{
|
||||
private final ConcurrentMap<ObjectName, Object> map = new ConcurrentHashMap<>();
|
||||
|
|
@ -268,5 +273,17 @@ public class TableMetricTest extends TestBaseImpl
|
|||
if (previous == null)
|
||||
onException.handler.accept(new InstanceNotFoundException("MBean " + mbeanName + " was not found"));
|
||||
}
|
||||
|
||||
@Override
|
||||
public Set<ObjectName> queryNames(ObjectName name, QueryExp query)
|
||||
{
|
||||
return null;
|
||||
}
|
||||
|
||||
@Override
|
||||
public MBeanServer getMBeanServer()
|
||||
{
|
||||
return null;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue