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LUCENE-6795: Make SystemInfoHandler more dynamic, add support for IBM J9 OperatingSystemMXBean 

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1702656 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Uwe Schindler 2015-09-12 17:55:34 +00:00
parent d8b7f5a62c
commit f213b3bfdc
2 changed files with 48 additions and 55 deletions
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90
solr/core/src/java/org/apache/solr/handler/admin/SystemInfoHandler.java
View File

@ -17,6 +17,10 @@
package org.apache.solr.handler.admin;
import java.beans.BeanInfo;
import java.beans.IntrospectionException;
import java.beans.Introspector;
import java.beans.PropertyDescriptor;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
@ -30,11 +34,13 @@ import java.net.UnknownHostException;
import java.nio.charset.Charset;
import java.text.DecimalFormat;
import java.text.DecimalFormatSymbols;
import java.util.Arrays;
import java.util.Date;
import java.util.Locale;
import org.apache.commons.io.IOUtils;
import org.apache.lucene.LucenePackage;
import org.apache.lucene.util.Constants;
import org.apache.solr.common.util.NamedList;
import org.apache.solr.common.util.SimpleOrderedMap;
import org.apache.solr.core.CoreContainer;
@ -160,75 +166,61 @@ public class SystemInfoHandler extends RequestHandlerBase
SimpleOrderedMap<Object> info = new SimpleOrderedMap<>();
OperatingSystemMXBean os = ManagementFactory.getOperatingSystemMXBean();
info.add(NAME, os.getName());
info.add( "version", os.getVersion() );
info.add( "arch", os.getArch() );
info.add( "systemLoadAverage", os.getSystemLoadAverage());
// This is a public Oracle/OpenJDK extension, but may not be in other JDKs:
// com.sun.management.OperatingSystemMXBean
info.add(NAME, os.getName()); // add at least this one
try {
final Class<? extends PlatformManagedObject> intf = Class.forName("com.sun.management.OperatingSystemMXBean")
// add remaining ones dynamically using Java Beans API
addMXBeanProperties(os, OperatingSystemMXBean.class, info);
} catch (IntrospectionException | ReflectiveOperationException e) {
log.warn("Unable to fetch properties of OperatingSystemMXBean.", e);
}
// There are some additional beans we want to add (not available on all JVMs):
for (String clazz : Arrays.asList(
"com.sun.management.OperatingSystemMXBean",
"com.sun.management.UnixOperatingSystemMXBean",
"com.ibm.lang.management.OperatingSystemMXBean"
)) {
try {
final Class<? extends PlatformManagedObject> intf = Class.forName(clazz)
.asSubclass(PlatformManagedObject.class);
final PlatformManagedObject bean = ManagementFactory.getPlatformMXBean(intf);
if (bean != null) {
addMXBeanProperty( bean, intf, "committedVirtualMemorySize", info);
addMXBeanProperty( bean, intf, "freePhysicalMemorySize", info);
addMXBeanProperty( bean, intf, "freeSwapSpaceSize", info);
addMXBeanProperty( bean, intf, "processCpuTime", info);
addMXBeanProperty( bean, intf, "totalPhysicalMemorySize", info);
addMXBeanProperty( bean, intf, "totalSwapSpaceSize", info);
}
} catch (Exception e) {
addMXBeanProperties(os, intf, info);
} catch (ClassNotFoundException e) {
// ignore
} catch (IntrospectionException | ReflectiveOperationException e) {
log.warn("Unable to fetch properties of JVM-specific OperatingSystemMXBean.", e);
}
}
// This is a public Oracle/OpenJDK extension, but may not be in other JDKs:
// com.sun.management.UnixOperatingSystemMXBean
// Try some command line things:
try {
final Class<? extends PlatformManagedObject> intf = Class.forName("com.sun.management.UnixOperatingSystemMXBean")
.asSubclass(PlatformManagedObject.class);
final PlatformManagedObject bean = ManagementFactory.getPlatformMXBean(intf);
if (bean != null) {
addMXBeanProperty( bean, intf, "openFileDescriptorCount", info );
addMXBeanProperty( bean, intf, "maxFileDescriptorCount", info );
}
} catch (Exception e) {
// ignore
}
try {
if( !os.getName().toLowerCase(Locale.ROOT).startsWith( "windows" ) ) {
// Try some command line things
if (!Constants.WINDOWS) {
info.add( "uname", execute( "uname -a" ) );
info.add( "uptime", execute( "uptime" ) );
}
} catch( Exception ex ) {
log.warn("Unable to execute command line tools.", ex);
log.warn("Unable to execute command line tools to get operating system properties.", ex);
}
return info;
}
/**
* Try to run a getter function on a {@link PlatformManagedObject}.
* Add all bean properties of a {@link PlatformManagedObject} to the given {@link NamedList}.
* <p>
* If you are running a OpenJDK/Oracle JVM, there are nice functions in:
* If you are running a OpenJDK/Oracle JVM, there are nice properties in:
* {@code com.sun.management.UnixOperatingSystemMXBean} and
* {@code com.sun.management.OperatingSystemMXBean}
* <p>
* If the given bean does not have the property, it is handled like {@code null}
* and not added to the given named list.
*/
static void addMXBeanProperty(PlatformManagedObject obj, Class<? extends PlatformManagedObject> intf,
String property, NamedList<Object> info) {
try {
final String method = "get" + Character.toUpperCase( property.charAt(0) ) + property.substring( 1 );
final Object v = intf.getMethod( method ).invoke( intf.cast(obj) );
if( v != null ) {
info.add( property, v );
static <T extends PlatformManagedObject> void addMXBeanProperties(T obj, Class<? extends T> intf, NamedList<Object> info)
throws IntrospectionException, ReflectiveOperationException {
if (intf.isInstance(obj)) {
final BeanInfo beanInfo = Introspector.getBeanInfo(intf, intf.getSuperclass(), Introspector.IGNORE_ALL_BEANINFO);
for (final PropertyDescriptor desc : beanInfo.getPropertyDescriptors()) {
final String name = desc.getName();
final Object v = desc.getReadMethod().invoke(obj);
if(v != null && info.get(name) == null) {
info.add(name, v);
}
}
} catch (Exception e) {
log.warn("Cannot get property '{}' of MXBean interface: {}", property, intf.getName());
}
}

13
solr/core/src/test/org/apache/solr/handler/admin/SystemInfoHandlerTest.java
View File

@ -19,6 +19,7 @@ package org.apache.solr.handler.admin;
import java.lang.management.ManagementFactory;
import java.lang.management.OperatingSystemMXBean;
import java.util.Arrays;
import org.apache.lucene.util.LuceneTestCase;
import org.apache.solr.common.util.SimpleOrderedMap;
@ -26,7 +27,7 @@ import org.apache.solr.common.util.SimpleOrderedMap;
public class SystemInfoHandlerTest extends LuceneTestCase {
public void testMagickGetter() {
public void testMagickGetter() throws Exception {
OperatingSystemMXBean os = ManagementFactory.getOperatingSystemMXBean();
@ -36,14 +37,14 @@ public class SystemInfoHandlerTest extends LuceneTestCase {
info.add( "version", os.getVersion() );
info.add( "arch", os.getArch() );
// make another using addMXBeanProperty()
// make another using addMXBeanProperties()
SimpleOrderedMap<Object> info2 = new SimpleOrderedMap<>();
SystemInfoHandler.addMXBeanProperty( os, OperatingSystemMXBean.class, "name", info2 );
SystemInfoHandler.addMXBeanProperty( os, OperatingSystemMXBean.class, "version", info2 );
SystemInfoHandler.addMXBeanProperty( os, OperatingSystemMXBean.class, "arch", info2 );
SystemInfoHandler.addMXBeanProperties( os, OperatingSystemMXBean.class, info2 );
// make sure they got the same thing
assertEquals( info.toString(), info2.toString() );
for (String p : Arrays.asList("name", "version", "arch")) {
assertEquals(info.get(p), info2.get(p));
}
}
}