Ant Script to start server and deploy application

Following ant script will: a) start the server (wlserver ant task) b) deploy application on the application from the server

Deployment Plan

Overriding value using Deployment Plan

We can override the values of the deployement descriptors at the runtime using plan.xml. Following are the steps which can be followed to override context-root of the application specified in the weblogic.xml:

1) My weblogic.xml looks as follows:






I want to change the context-root from virtual to TestApp at runtime.

2) Create a deployment plan using weblogic.PlanGenerator as follows:

java weblogic.PlanGenerator -all -plan Plan.xml Virtual.war

This will generate Plan.xml outside the archived application.

3) Plan.xml contains the values which can be overridden in the deployment descriptor at runtime. We can override the value of context-root at runtime as follows:










4) Now deploy the application using weblogic.Deployer as follows:

java weblogic.Deployer -adminurl t3://localhost:7001 -user weblogic -password weblogic -redeploy -name Virtual -source Virtual.war -targets AdminServer -plan Plan.xml

5) Test the application using the following URL:

http://localhost:7001/TestApp

Default URL of application:
http://localhost:7001/Virtual

At runtime the value of context-root was overridden to TestApp.

Cluster Unicast messaging mode

UNICAST messaging mode

WLS10.x onwards there are 2 messaging modes of cluster: Unicast and Multicast. According to the following document Unicast is the recommended messaging mode though there have been many issues reported.

http://download-llnw.oracle.com/docs/cd/E11035_01/wls100/cluster/features.html

a) In Unicast messaging mode, cluster members are split into groups and every group has a group leader. Cluster members communicate to the group leader when they need to send a broadcast message which is usually the heartbeat message. When the cluster members detect the failure of a group leader, the next oldest member becomes the group leader. All group leaders are connected to each other.

b) The frequency of communication in unicast mode is similar to the frequency of sending messages on multicast port.

Unicast messaging mode Model:

Unicast Configuration:

Default Network Channel:

While creating a cluster choose Unicast as the messaging mode. If we leave the ‘Unicast broadcast channel’ blank then default listening port of the server is used if no channel is configured.

Config.xml looks like follows when default network channel is in use:

In the standard out of managed servers we will get the following message:

This means that the default channel will listen all the protocols.

Custom Network Channel:

For customer Network channels to be used with Unicast we need to create Network Channel by the same name under each server in cluster from Protocol > Channels

We can create custom network channels for different protocols. Protocol used by unicast is cluster-broadcast for communication. Use this custom channel name in the Unicast broadcast channel.

NOTE: For example, If you are configuring Network channel for different protocols say http, t3,iiop etc then cluster-broadcast will be one of the common protocol which will be default be configured along with other protocols. Hence, custom channel created for http, t3, iiop can be used as unicat broadcast channel.

Config.xml will have the following information where Channel-0 is the custom Network channel.

Here I configured Channel-0 for http protocol which is used as Unicast broadcast channel and I get the following message in the standard out of managed server:

While configuring channels other things that have that have to be taken care:

1) Listen Address, Listen port: If this is left blank then the server’s listen address will be taken as default address and port
2) External Address, External port: This is the address of firewall or loadbalancer if there is any.
3) HTTP enabled for this protocol: If you want that all http requests should be listen by the protocol for which network channel is configured then we need to keep this checked
4) Outbound Enabled: If this channel is going to listen to outbound traffic then this has to be checked

Refer: http://download.oracle.com/docs/cd/E15051_01/wls/docs103/config_wls/network.html#wp1058979

Unicast Debug Flag:
-Dweblogic.debug.DebugUnicastMessaging

Testing Unicast connectivity

In Unicast, we do not have any utility check network issues. We can suggest the customer to change the messaging mode to Multicast and check for network issues if there are any using the multicast utility

Multicast or IP multicast is a simple broadcast technology that enables multiple applications to subscribe to a given IP address and port number and listen for messages. The IP/port combination is setup when the cluster is defined and server instances uses multicast for JNDI updates andcluster heartbeats. So using java utils.MulticastTest -n server1 -a 224.x.x.x –p 9001 We just check whether all the Nodes
available in the Cluster is able to communicate or not. It is actually testing at the N/W level.

Configuration: I-Planet as a proxy with Weblogic server

Steps To Configure WLS Plug-in in IPlanet Web Server

1. Install SunOne Web-Server.
2. Install WLS with the Plugin Option enabled.This option installs WLS with all the plugins files required for supported web-servers.
3. Refer BEA_HOME\weblogic92\server\plugin for plugin files.



















4. Navigate to appropriate OS and copy the IPlanet plug-in files.

5. Plug-in file for (IPlanet)Sun Server is proxy61.dll

6.Paste the proxy61.dll file in Sun Server’s plugin\lib folder(SUNHOME\WebServer6.1\plugins\lib).

7. The next is to edit the magnus.conf and obj.conf files of Sun Server and make entry for WLS plug-in(SUNHOME \WebServer6.1\https-beatest\config).

8. The entries that should be made in magnus.conf file are:

(1)A LoadModule entry in Loadmodule specification.

Init fn="load-modules" funcs="wl_proxy,wl_init" shlib="C:/Sun/WebServer6.1/plugins/lib/proxy61.dll"
Init fn="wl_init"

(2) Object specification in obj.conf for cluster environment.



127.0.0.1:7003,127.0.0.1:7005 is the cluster addresses to which the sun server redirects the request. The application is deployed on this cluster.

(3) Object specification in module configuration for single server.

9. After completing these specification start the Sun server.

10. Start the WLS admin server and all managed servers participating in the cluster.

11. Open the browser and type the request URL to the application deployed in the cluster.

Some JRMC commands

JRMC commands and their outputs:

Command:
jrcmd 864 print_class_summary

Output:
*****class java/security/cert/CertificateParsingException
****class java/security/SignatureException
****class java/security/DigestException
****class java/security/NoSuchProviderException
****class java/security/NoSuchAlgorithmException
***class javax/naming/NamingException
****class javax/naming/CommunicationException
****class javax/naming/NameAlreadyBoundException
****class javax/naming/NamingSecurityException
*****class javax/naming/NoPermissionException
****class javax/naming/NameNotFoundException
*****class weblogic/jndi/internal/AdminModeAccessException
****class javax/naming/ConfigurationException
****class javax/naming/InvalidNameException
***class java/lang/InterruptedException
*****class java/rmi/server/ExportException
****class javax/management/remote/JMXProviderException
****class java/nio/charset/CharacterCodingException
****class java/io/EOFException
****class java/util/zip/ZipException
****class java/io/FileNotFoundException
*****class weblogic/utils/jars/JarFileUtils$PathLengthException
****class java/net/UnknownHostException
****class java/net/MalformedURLException
****class java/io/UnsupportedEncodingException
***class java/lang/IllegalAccessException
***class java/lang/ClassNotFoundException
***class java/security/PrivilegedActionException
***class java/lang/NoSuchFieldException
***class java/lang/reflect/InvocationTargetException
***class java/lang/RuntimeException
****class org/apache/commons/beanutils/ConversionException
****class org/apache/beehive/netui/util/config/ConfigInitializationException
****class org/apache/commons/logging/LogConfigurationException
****class javax/xml/rpc/soap/SOAPFaultException
****class javax/xml/rpc/JAXRPCException
****class org/apache/commons/beanutils/ConversionException
****class org/apache/beehive/netui/util/config/ConfigInitializationException
****class java/lang/annotation/IncompleteAnnotationException
****class weblogic/xml/schema/binding/util/ClassUtil$ClassUtilException
****class com/sun/org/apache/xerces/internal/impl/xpath/regex/ParseException
****class org/apache/commons/logging/LogConfigurationException
****class javax/ejb/EJBException
****class org/apache/oro/text/MalformedCachePatternException
*****class org/apache/oro/text/perl/MalformedPerl5PatternException
****class weblogic/wsee/deploy/WSEEServletEndpointException
****class weblogic/cluster/migration/MigrationException
****class weblogic/rmi/extensions/NotImplementedException
****class sun/security/util/PendingException
****class com/bea/common/engine/SecurityServiceRuntimeException
*****class com/bea/common/engine/InvalidParameterException
*****class com/sun/org/apache/xerces/internal/xni/parser/XMLParseException
*****class com/sun/org/apache/xerces/internal/xni/parser/XMLConfigurationExcepti
on
****class com/bea/xml/XmlRuntimeException
*****class com/bea/xml/SchemaTypeLoaderException
****class com/bea/xbean/regex/ParseException
****class com/bea/xbean/values/XmlValueDisconnectedException
****class weblogic/utils/NestedRuntimeException
*****class weblogic/security/providers/authentication/LDAPAtnDelegateException
*****class weblogic/security/SecurityInitializationException
*****class weblogic/ldap/EmbeddedLDAPException
*****class weblogic/security/internal/encryption/EncryptionServiceException
***class javax/xml/parsers/FactoryFinder$ConfigurationError
***class weblogic/utils/NestedError
****class weblogic/management/configuration/ConfigurationError
****class weblogic/utils/AssertionError
***class sun/management/AgentConfigurationError
***class bea/jrockit/management/server/Main$AgentError
***class java/lang/AssertionError
***class java/lang/VirtualMachineError
****class java/lang/UnknownError
****class java/lang/InternalError
****class java/lang/OutOfMemoryError
****class java/lang/StackOverflowError
*class java/lang/Thread
**class weblogic/deploy/api/spi/deploy/WebLogicDeploymentManagerImpl$1
**class weblogic/platform/GCMonitorThread
**class com/octetstring/vde/DoSManager
**class com/octetstring/vde/frontend/LDAP
**class com/octetstring/vde/backend/standard/TransactionProcessor
**class com/octetstring/vde/util/TimedActivityThread
**class com/octetstring/vde/LDAPServer
**class weblogic/timers/internal/TimerThread$Thread
**class weblogic/t3/srvr/T3Srvr$2
**class weblogic/kernel/AuditableThread
***class weblogic/server/channels/ServerThread
***class weblogic/kernel/ExecuteThread
****class weblogic/kernel/ServerExecuteThread
***class weblogic/work/ExecuteThread
**class weblogic/t3/srvr/ShutdownOnExitThread
**class java/util/TimerThread
**class java/util/logging/LogManager$Cleaner
**class java/lang/ref/Reference$ReferenceHandler
*class jrockit/vm/RNI
*class jrockit/vm/Reflect
*class jrockit/vm/VM
**class jrockit/vm/Locks
*class jrockit/vm/AccessController
*class java/lang/reflect/AccessibleObject
**class java/lang/reflect/Constructor
**class java/lang/reflect/Field
**class java/lang/reflect/Method
*class java/lang/String
*class [Z
*class [S
*class [D
*class [F
*class [J
*class [I
*class [C
*class [B
*class java/lang/Class
^^^^^^ Class Summary Information ends here ^^^^^^

Command:

jrcmd 864 print_object_summary increaseonly=true
864:

Output
--------- Detailed Heap Statistics: ---------
36.4% 10151k 125390 +10151k [C
11.2% 3119k 133108 +3119k java/lang/String
4.7% 1304k 11928 +1304k java/lang/Class
4.4% 1215k 2722 +1215k [B
3.4% 946k 10371 +946k [Ljava/util/HashMap$Entry;
3.2% 889k 37944 +889k java/util/HashMap$Entry
2.5% 701k 9127 +701k [Ljava/lang/Object;
1.8% 512k 16401 +512k java/util/TreeMap$Entry
1.6% 439k 23655 +439k [Lcom/bea/staxb/buildtime/internal/bts/JavaTypeName;

1.5% 410k 13138 +410k java/util/LinkedHashMap$Entry
1.5% 409k 7479 +409k com/bea/staxb/buildtime/internal/bts/QNameProperty
1.4% 387k 16512 +387k java/util/Hashtable$Entry
1.4% 382k 8155 +382k java/util/HashMap
1.3% 367k 23536 +367k com/bea/staxb/buildtime/internal/bts/MethodName
1.2% 339k 14505 +339k javax/xml/namespace/QName
1.1% 308k 13173 +308k com/bea/staxb/buildtime/internal/bts/JavaTypeName
1.0% 283k 1197 +283k [I
0.9% 256k 2875 +256k [Ljava/util/Hashtable$Entry;
0.8% 211k 2704 +211k com/bea/staxb/runtime/internal/ByNameRuntimeBindingType$ElementQNameProperty
0.7% 206k 5539 +206k [Ljava/lang/String;
0.7% 194k 2492 +194k java/lang/reflect/Method
0.7% 183k 5860 +183k java/lang/ref/SoftReference
0.5% 144k 6171 +144k java/lang/ref/WeakReference
27856kB total ---

--------- End of Detailed Heap Statistics ---

Command:

jrcmd 864 print_threads

Output:


===== FULL THREAD DUMP ===============
Thu Jan 28 01:41:58 2010
BEA JRockit(R) R27.2.0-131-78843-1.5.0_10-20070320-1457-windows-ia32

"Main Thread" id=1 idx=0x4 tid=236 prio=5 alive, in native, waiting
-- Waiting for notification on: weblogic/t3/srvr/T3Srvr@0x0ABAF240[fat lock]
at jrockit/vm/Threads.waitForSignal(J)Z(Native Method)
at java/lang/Object.wait(J)V(Native Method)
at java/lang/Object.wait(Object.java:474)
at weblogic/t3/srvr/T3Srvr.waitForDeath(T3Srvr.java:730)
^-- Lock released while waiting: weblogic/t3/srvr/T3Srvr@0x0ABAF240[fat lock]
at weblogic/t3/srvr/T3Srvr.run(T3Srvr.java:380)
at weblogic/Server.main(Server.java:67)
at jrockit/vm/RNI.c2java(IIII)V(Native Method)
-- end of trace

"(Signal Handler)" id=2 idx=0x8 tid=1872 prio=5 alive, in native, daemon

"(Code Generation Thread 1)" id=3 idx=0xc tid=2956 prio=5 alive, in native, native
_waiting, daemon

"(Code Optimization Thread 1)" id=4 idx=0x10 tid=2880 prio=5 alive, in native, nat
ive_waiting, daemon

"(GC Main Thread)" id=5 idx=0x14 tid=2064 prio=5 alive, in native, daemon

"(GC Worker Thread 1)" id=? idx=0x18 tid=1136 prio=5 alive, in native, native_wait
ing, daemon

"(GC Worker Thread 2)" id=? idx=0x1c tid=2056 prio=5 alive, in native, native_wait
ing, daemon

"(VM Periodic Task)" id=6 idx=0x20 tid=3284 prio=10 alive, in native, daemon

"(Attach Listener)" id=7 idx=0x24 tid=2392 prio=5 alive, in native, daemon

"Finalizer" id=8 idx=0x28 tid=2368 prio=8 alive, in native, native_waiting, daemon

at jrockit/memory/Finalizer.getPendingFinalizee(Z)Ljava/lang/Object;(Native Me
thod)
at jrockit/memory/Finalizer.access$100(Z)Ljava/lang/Object;(Unknown Source)
at jrockit/memory/Finalizer$4.run()V(Unknown Source)
at java/lang/Thread.run(Thread.java:595)
at jrockit/vm/RNI.c2java(IIII)V(Native Method)
-- end of trace

"Reference Handler" id=9 idx=0x2c tid=2312 prio=10 alive, in native, native_waitin
g, daemon
at java/lang/ref/Reference.getPending()Ljava/lang/ref/Reference;(Native Method
)
at java/lang/ref/Reference.access$000()Ljava/lang/ref/Reference;(Unknown Sourc
e)
at java/lang/ref/Reference$ReferenceHandler.run()V(Unknown Source)
at jrockit/vm/RNI.c2java(IIII)V(Native Method)
-- end of trace

"(Sensor Event Thread)" id=10 idx=0x30 tid=2952 prio=5 alive, in native, daemon
----------

===== END OF THREAD DUMP ===============

Command:
>jrcmd 864 verbosity set=memory,memdbg,codegen,opt,sampling filename="output.log"
864:

Output
Current logstatus:
jrockit : level=WARN, decorations=101, sanity=NONE
memory (gc) : level=INFO, decorations=101, sanity=NONE
nursery (yc) : level=WARN, decorations=101, sanity=NONE
model : level=WARN, decorations=101, sanity=NONE
devirtual : level=WARN, decorations=101, sanity=NONE
codegen (code) : level=INFO, decorations=101, sanity=NONE
native (jni) : level=WARN, decorations=101, sanity=NONE
thread : level=WARN, decorations=101, sanity=NONE
opt : level=INFO, decorations=101, sanity=NONE
load (lib) : level=WARN, decorations=101, sanity=NONE
ssa : level=WARN, decorations=101, sanity=NONE
constprop : level=WARN, decorations=101, sanity=NONE
inline : level=WARN, decorations=101, sanity=NONE
preprocess : level=WARN, decorations=101, sanity=NONE
jvmpi : level=WARN, decorations=101, sanity=NONE
memdbg : level=INFO, decorations=101, sanity=NONE
jvmtidbg : level=WARN, decorations=101, sanity=NONE
sampling (hotspot) : level=INFO, decorations=101, sanity=NONE
cpuinfo : level=WARN, decorations=101, sanity=NONE
cpuid : level=WARN, decorations=101, sanity=NONE
sym : level=WARN, decorations=101, sanity=NONE
codegc : level=WARN, decorations=101, sanity=NONE
classgc : level=WARN, decorations=101, sanity=NONE
errorsim (esim) : level=WARN, decorations=101, sanity=NONE
memprof (mp) : level=WARN, decorations=101, sanity=NONE
jvmti : level=WARN, decorations=101, sanity=NONE
gcpause : level=WARN, decorations=101, sanity=NONE
gcreport : level=WARN, decorations=101, sanity=NONE
finalizer : level=WARN, decorations=101, sanity=NONE
jripc : level=WARN, decorations=101, sanity=NONE
memleak : level=WARN, decorations=101, sanity=NONE
compaction : level=WARN, decorations=101, sanity=NONE
dpgo : level=WARN, decorations=101, sanity=NONE
license : level=WARN, decorations=101, sanity=NONE
tasks : level=WARN, decorations=101, sanity=NONE
exceptions : level=WARN, decorations=141, sanity=NONE
stackoverflow : level=WARN, decorations=141, sanity=NONE
sysgc (systemgc) : level=WARN, decorations=101, sanity=NONE
locks : level=WARN, decorations=101, sanity=NONE
strcmp : level=WARN, decorations=101, sanity=NONE
bca : level=WARN, decorations=101, sanity=NONE
ir : level=WARN, decorations=101, sanity=NONE
starttime : level=WARN, decorations=101, sanity=NONE
largepages : level=WARN, decorations=101, sanity=NONE
mgmnt (management) : level=WARN, decorations=101, sanity=NONE
jmm : level=WARN, decorations=101, sanity=NONE
perf : level=WARN, decorations=101, sanity=NONE
attach : level=WARN, decorations=101, sanity=NONE
referents (verboserefs) : level=WARN, decorations=101, sanity=NONE
class : level=WARN, decorations=101, sanity=NONE
intrinsics (intrinsic) : level=WARN, decorations=101, sanity=NONE
verify (verifier) : level=WARN, decorations=101, sanity=NONE
jra : level=WARN, decorations=101, sanity=NONE
timing : level=WARN, decorations=101, sanity=NONE

Command:

>jrcmd 864 timestamp
864:

Output:
==== Timestamp ==== uptime: 0 days, 00:17:34 time: Thu Jan 28 01:46:22 2010

Command:

>jrcmd 864 print_memusage
864:
[JRockit] memtrace is collecting data...
[JRockit] *** 0th memory utilization report
(all numbers are in kbytes)
Total mapped ;;;;;;; 733268
; Total in-use ;;;;;; 415560
;; executable ;;;;; 11572
;;; java code ;;;; 5952; 51.4%
;;;; used ;;; 5626; 94.5%
;; shared modules (exec+ro+rw) ;;;;; 14168
;; guards ;;;;; 544
;; readonly ;;;;; 2536
;; rw-memory ;;;;; 398312
;;; Java-heap ;;;; 262144; 65.8%
;;; Stacks ;;;; 4008; 1.0%
;;; Native-memory ;;;; 132159; 33.2%
;;;; java-heap-overhead ;;; 10155
;;;; codegen memory ;;; 1088
;;;; classes ;;; 56320; 42.6%
;;;;; method bytecode ;; 6374
;;;;; method structs ;; 6889 (#146974)
;;;;; constantpool ;; 23334
;;;;; classblock ;; 2185
;;;;; class ;; 3703 (#11938)
;;;;; other classdata ;; 8443
;;;;; overhead ;; 442
;;;; threads ;;; 20; 0.0%
;;;; malloc:ed memory ;;; 29814; 22.6%
;;;;; codeinfo ;; 1306
;;;;; codeinfotrees ;; 492
;;;;; exceptiontables ;; 170
;;;;; metainfo/livemaptable ;; 5894
;;;;; codeblock structs ;; 2
;;;;; constants ;; 10
;;;;; livemap global tables ;; 1027
;;;;; callprof cache ;; 0
;;;;; paraminfo ;; 116 (#1622)
;;;;; strings ;; 10863 (#185955)
;;;;; strings(jstring) ;; 0
;;;;; typegraph ;; 2871
;;;;; interface implementor list ;; 283
;;;;; thread contexts ;; 25
;;;;; jar/zip memory ;; 9862
;;;;; native handle memory ;; 21
;;;; unaccounted for memory ;;; 34781; 26.3%;1.17
---------------------!!!

Command:
>jrcmd 864 heap_diagnostics

Output:

======== BEGIN OF HEAPDIAGNOSTIC =========================

Invoked from diagnosticcommand

Total memory in system: 8377249792 bytes
Available physical memory in system: 1293717504 bytes
-Xmx (maximal heap size) is 4294967296 bytes
Heapsize: 4294967296 bytes
Free heap-memory: 3712605608 bytes

mmStartCompaction = 0x2b1e042b0000, mmEndCompaction = 0x2b1e082b0018


Memory layout:
00010000-003d0000 rwxp 00010000 00:00 0
00400000-00412000 r-xp 00000000 fd:04 1287492                            /opt/jrmc-3.1.0-1.5.0/bin/java
00420000-004e0000 rwxp 00420000 00:00 0
00511000-00513000 rwxp 00011000 fd:04 1287492                            /opt/jrmc-3.1.0-1.5.0/bin/java
00520000-07d60000 rwxp 00520000 00:00 0
07d7a000-0f9a5000 rwxp 07d7a000 00:00 0
0f9b0000-15ff0000 rwxp 0f9b0000 00:00 0
4005b000-4005d000 rwxp 4005b000 00:00 0
4005d000-40060000 ---p 4005d000 00:00 0
40060000-4009f000 rwxp 40060000 00:00 0
4009f000-400a2000 ---p 4009f000 00:00 0

--------- Detailed Heap Statistics: ---------
21.5% 72399k   637351     +0k [C
8.6% 29000k   281013     +0k [Ljava/lang/Object;
6.5% 21797k   697514     +0k java/lang/String
5.1% 17145k    31500    -59k [B
4.1% 13697k    87524     +0k [Ljava/util/HashMap$Entry;
2.7% 9274k    65950     +0k java/lang/reflect/Method
2.4% 8101k   207404     +0k java/util/HashMap$Entry
2.0% 6778k   173542     +0k com/bea/common/security/xacml/attr/StringAttribute
2.0% 6629k    33943     +0k java/lang/Class


    337244kB total ---

--------- End of Detailed Heap Statistics ---
----- Reference Objects statistics separated per class -----
   Total Reach Act PrevAct Null
   ----- ----- --- ------- ----
Finalizers:
       5     2   3       0    0 Total for all Finalizers
       2     1   1       0    0 => java/net/SocksSocketImpl
       1     0   1       0    0 => weblogic/socket/WeblogicSocket
       1     1   0       0    0 => java/net/SocketInputStream
       1     0   1       0    0 => java/net/SocketOutputStream
----- End of Reference Objects statistics -----
------------------- Printing heap ---------------------
"o"/"p" = 1k normal/pinned objects
"O"/"P" = 50k normal/pinned objects
"."/"/" = <1k normal/pinned objects (fragmentation)
" "/"_" = 1k/50k free space
-------------------------------------------------------
//////o///o/p/oo/OOOoooooooooooooooooooooo/OOooooo      0x2b1dfe2f7c70
ooooooooo/OOOOOOooooooooooo/Oooooooooooooooooooooo      0x2b1dfe357b98
ooooooooooooo..        OOOOOOOoooooooooooooo./oooo      0x2b1dfe3b7ac0
oooooooooooooooooooooooo/OOooooooooooooooooooooooo      0x2b1dfe3dbce0
oooooooooooooooooooo/oooooooooooooooo/OOOOOooooooo      0x2b1dfe423d38
oooooooooooooooooooooooooooo.   OOOooooooooooooooo      0x2b1dfe453ec0
ooooooooooooooooooooooooooo//.....................      0x2b1dfe460210
..............................Ooooooooooo/OOOOoooo      0x2b1dfe4a8268





the available commands are:

kill_rmp_server
start_rmp_server
kill_management_server
start_management_server
checkjrarecording
stopjrarecording
startjrarecording
print_object_summary
memleakserver
print_class_summary
print_codegenlist
run_optfile
dump_codelayout
dump_codelist
dump_codemap
print_utf8pool
print_properties
print_threads
datadump_request
runsystemgc
runfinalization
heap_diagnostics
oom_diagnostics
print_exceptions
version
timestamp
command_line
sanity
verbosity
set_filename
help
print_memusage

Reference Links:
http://www.oracle.com/technology/products/jrockit/pdf/missioncontrol_whitepaper_june08.pdf
http://download.oracle.com/docs/cd/E13150_01/jrockit_jvm/jrockit/geninfo/diagnos/ctrlbreakhndlr.html