Help on consistency + Weblogic Cluster configuration

Hello

I am new to consistency. I explore the consistency to fill one of my condition.

My needs: I have an application deployed on a clustered server logical Web environment. I need to cache data specific to the application (java card) and that should be available to all nodes in the cluster WLS. Application that are cached, data can be updated from any of the node in the cluster WLS and updated the application cache data should be available for all the nodes in the cluster WLS. The nodes in the cluster of WLS resides in different machines from different places.

Can I use coherence as a services of caching for my requirement?

If Yes, do I need to start a server cache consistency on each node of the cluster WLS?

If so, do I need to specially configure these servers cache, so that these cache servers would communicate each other in case of updates of data in the cache?

It will be very helpful if you could also provide sample configurations to achieve the above scenarios.

Thanks in advance!

Kind regards
Srinivas M

You can start a cache server in the network by using for example

# home directory
BEA_HOME="/home/oracle/bea"
export BEA_HOME
# java vendor (for example Oracle or Sun)
JAVA_VENDOR="Oracle"
export JAVA_VENDOR
# cache server klasse
CACHE_SERVER_CLASS="com.tangosol.net.DefaultCacheServer"
export CACHE_SERVER_CLASS
# coherence options
COHERENCE_OPTIONS="-Dtangosol.coherence.management=all"
export COHERENCE_OPTIONS
COHERENCE_OPTIONS="${COHERENCE_OPTIONS} -Dtangosol.coherence.management.remote=true"
#COHERENCE_OPTIONS="${COHERENCE_OPTIONS} -Dtangosol.coherence.cacheconfig=WEB-INF/classes/session-cache-config.xml"
#COHERENCE_OPTIONS="${COHERENCE_OPTIONS} -Dtangosol.coherence.session.localstorage=true"

WL_HOME="${BEA_HOME}/wlserver_10.3"
export WL_HOME
BEA_JAVA_HOME="${BEA_HOME}/jrockit_160_05_R27.6.2-20"
export BEA_JAVA_HOME
SUN_JAVA_HOME="${BEA_HOME}/jdk160_11"
export SUN_JAVA_HOME

if [ "${JAVA_VENDOR}" = "Oracle" ]; then
     JAVA_HOME="${BEA_JAVA_HOME}"
     export JAVA_HOME
     MEM_ARGS="-jrockit -Xms512m -Xmx512m -Xss128k -Xgcprio:throughput"
     export MEM_ARGS
fi

if [ "${JAVA_VENDOR}" = "Sun" ]; then
     JAVA_HOME="${SUN_JAVA_HOME}"
     export JAVA_HOME
     MEM_ARGS="-server -Xmx512m -Xms512m -Xmn256m -Xss128k -XX:PermSize=128m -XX:MaxPermSize=128m -XX:+UseParallelGC -XX:ParallelGCThreads=2 -XX:+UseParallelOldGC -XX:+AggressiveOpts -XX:+UseBiasedLocking"
     export MEM_ARGS
fi

# classpath for the cache server
CLASSPATH="${WL_HOME}/coherence/coherence.jar"
export CLASSPATH

# start the cache server
${JAVA_HOME}/bin/java ${MEM_ARGS} ${COHERENCE_OPTIONS} ${CACHE_SERVER_CLASS}

-Dtangosol.coherence.management = all option gives made you some useful information about what the cache by using for example the browser mbean provided by jconsole or jrockit mission control.

You can create an application in which you create a cache, below is an example of a servlet

import com.tangosol.net.CacheFactory;
import com.tangosol.net.NamedCache;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.Random;

public class TestServlet extends HttpServlet {

    private NamedCache movies;

    public void init() throws ServletException {
        movies = CacheFactory.getCache("repl-movies");
        movies.put(10, new Movie(10, "Rear Window", "Alfred Hitchcock"));
        movies.put(20, new Movie(20, "Vertigo", "Alfred Hitchcock"));
        movies.put(30, new Movie(30, "Double Indemnity", "Billy Wilder"));
        movies.put(40, new Movie(40, "Touch of Evil", "Orson Welles"));
    }

    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        Integer[] integers = {10, 20, 30, 40};
        Random random = new Random();
        while (true) {
            movies.get(integers[random.nextInt(4)]);
        }
    }
}

Package the servlet into such a WAR file and deploy it in a WebLogic cluster configured.

By accessing the servlet on the different nodes in the cluster a new cache is created and added to the
already running DefaultServer.

The most difficult part is to configure your cache. As you can see in servlet initialization we EU something like CacheFactory.getCache ("repl-movies");
Lack of consistency with some configurations of cache example that are contained in the coherence.jar (coherence-cache-config. (XML).
The following entry is used


      repl-*
      example-replicated


      example-replicated
      ReplicatedCache
      
        
          unlimited-backing-map
        
      
      true

A replicated cache is probably what you need as well. You like all the data available on all nodes. If you want to use
your own cache configuration, you can add the option - Dtangosol.coherence.cacheconfig (see the for the default server startup script)

A good introduction on coherence can be found here:
http://www.packtpub.com/article/installing-coherence-3.5-and-accessing-the-data-grid-1
and
http://www.packtpub.com/article/installing-coherence-3.5-and-accessing-the-data-grid-2?utm_source=rk_coherence_abr1_0310&utm_medium=content&utm_campaign=ramsai

Tags: Fusion Middleware

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Field unique unique host 1 Admin and managed 2 weblogic cluster

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I am getting below error
*********************************************************************************************************************************************************************************
CLASSPATH=/ag3/app/Oracle/Middleware/patch_wls1211/profiles/default/sys_manifest_classpath/weblogic_patch.jar:/ag3/app/Oracle/Middleware/patch_ocp371/profiles/default/sys_manifest_classpath/weblogic_patch.jar:/ag3/app/jdk1.7.0_55/lib/tools.jar:/ag3/app/Oracle/Middleware/wlserver_12.1/server/lib/weblogic_sp.jar:/ag3/app/Oracle/Middleware/wlserver_12.1/server/lib/weblogic.jar:/ag3/app/Oracle/Middleware/modules/features/weblogic.server.modules_12.1.1.0.jar:/ag3/app/Oracle/Middleware/wlserver_12.1/server/lib/webservices.jar:/ag3/app/Oracle/Middleware/modules/org.apache.ant_1.7.1/lib/ant-all.jar:/ag3/ app/Oracle/Middleware/modules/net.sf.antcontrib_1.1.0.0_1-0b2/lib/ant-contrib.jar:/ag3/app/Oracle/Middleware/patch_wls1211/profiles/default/sys_manifest_classpath/weblogic_patch.jar:/ag3/app/Oracle/Middleware/patch_ocp371/profiles/default/sys_manifest_classpath/weblogic_patch.jar:/ag3/app/jdk1.7.0_55/lib/tools.jar:/ag3/app/Oracle/Middleware/wlserver_12.1/server/lib/weblogic_sp.jar:/ag3/app/Oracle/Middleware/wlserver_12.1/server/lib/weblogic.jar:/ag3/app/Oracle/Middleware/modules/features/weblogic.server.modules_12.1.1.0.jar:/ag3/app/Oracle/Middleware/wlserver_12.1/server/lib/webservices.jar:/ag3/app/ Oracle/Middleware/modules/org.apache.ant_1.7.1/lib/ant-all.jar:/ag3/app/Oracle/Middleware/modules/net.sf.antcontrib_1.1.0.0_1-0b2/lib/ant-contrib.jar::/ag3/app/Oracle/Middleware
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Your environment has been defined.
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< 16 October 2015 01:38:12 > < FINEST > < NodeManager > < waiting for the process to die: 22611 >
< 16 October 2015 01:38:12 > < INFO > < NodeManager > < server failed during startup, so won't be restarted >
< 16 October 2015 01:38:12 > < FINEST > < NodeManager > < returned runMonitor, finished setting = true and notification servers >
*********************************************************************************************************************************************************************************

Is it possible that I can start my server managed by Admin? If Yes, what are the steps I have to do to make it viable.
In addition, which is just how to configure the node Manager autostart administrator and Manager on the same host and server with the single domain.

NodeManager cannot start Admin and the managed server automatically when you gracefully stop the managed server.

Recovery setting enabled the crash work in case of a sudden collapse of the host itself. This does not mean that NodeManager servers will automatically start every time. Crash Recovery also works for servers that are started by using Nodemanager only.

For:

Error: Exception thrown by the agent: java.rmi.server.ExportException: Port already used: 9899; nested exception is:

exception java.net.BindException: address already in use

As says error itself port is already in use. Be sure to use the single port and also check if a process taking into this port.

See you soon,.

Naveen

Doubts about Weblogic Cluster and application deployment

Hi all
WebLogic...: 12.1.2
... OS: AIX 7.1
We intend to create a Weblogic cluster at 2 knots in different sites to comply with the requirements of the customer HA. With this in mind im a few doubts began to rise:
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Thanks for the patience and attention.

Hello

(1) this solution will have a server in site A Weblogic and an another Weblogic Server on site B, and we will create a Weblogic cluster with these 2 servers. It is equivalent to an Oracle extended RAC, but with Weblogic. Our link between sites is extremely fast, dedicated, with a latency of less than 5 ms. Is it possible and cost-effective to build such a solution?

Yes: is very easy to configure the (much easier than configuring PAP) weblogic server cluster.

Please refer to:

http://docs.Oracle.com/CD/E24329_01/Web.1211/e24425/overview.htm#CLUST114

http://docs.Oracle.com/CD/E24329_01/Web.1211/e24425/Setup.htm#CLUST431

(2) regarding the deployment of the application, I would like to know if it is possible to deploy an application on Weblogic Server just on node A, and this application is automatically replicated on the Weblogic Server in site B? As far as I know, I have to deploy the application on both Weblogic servers manually.

You can deploy your application on weblogic cluster: his will be automatically deployed to all members of the cluster (all managed servers)

HTH.

Borys

Is ASM cluster configuration, possible to detail all cluster hosts
In the case of configuration in cluster of ASM (where its possible to create one ASM DiskGroup is shared between all hosts in the cluster) is it possible to obtain information on all hosts (cluster node) (which are part of this cluster configuration) one machine.

For example. If we have three nodes Node1, Node2, and Node3 configured using ASM cluster (i.e. default ASM instance will be ASM2 ASM1, and + ASM3 on these machine) and then I create multiple starts (some shared between all three nodes and bit limited to single node or two) using a set of SAN disk visible to all.
In such a scenario, can I get the details of Node2 and Node3 comes to log in Node1 (i.e. Since one machine one single node part of ASM cluster configuration, I need information of all other machines/nodes).

Is this possible? If so, some tips on the way which will be a great help.

~ Stéphane.
Hi stephane,

Maybe I'm missing something here, or I'm too detailed, but depending on how General should be your script, there are some steps, you must check to avoid the false assumptions - e.g., as here: "+ to get the CRS_HOME, I can grep for crsd.bin. If I don't get this running process, this means that configurations is a StandAlone OracleDB and turns to the ASM, ASM is too stand-alone instance. + »

If you can't find the crsd.bin running, it could also mean that it will not turn now - for some reason any. If you find a DSO running instance, but not crsd.bin, Yes, you can generally assume that you would have a configuration of ASM nonclustered (autonomous), unless you run into a BUG / failure.

Therefore, it might be a good idea to check the existence / first configuration, then to the current process. For example:

IF you have installed Oracle Clusterware, you will find an init.cssd under /etc/init.d (for Linux, similar directories for other OS). Therefore, check first for the operating system, if you have the OS specific scripts, then just check for the init.cssd init directory.

The advantages of checking the init.cssd are: you will get the Oracle Clusterware House - it is set as a variable:
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Then you can check if Clusterware is running. You will have more than one way to do it now. You can use ps - ef or you can use Clusterware orders as crsctl check CRS or things of that kind.

Of some people could argue that there is a DSMB for ASM in standalone (non-cluster) ASM facilities running and there is therefore an init.cssd. YES, but this init.cssd shouldn't be in init in this case - see the comment in the header of the script init.cssd: "In a local, nonclustered, installation without CARS, it must be placed in a directory rcX.d".

However, just to be safe, you can always check whether or not you will find init.crsd, init.evmd, which are very strong indicators that Clusterware has been installed on the system, unless it was not uninstalled properly...

Once you've found the Clusterware installed, running AND you know the path to the House - it's easy:

As said previously, you can use olsnodes to get the nodes in the cluster. You can still use crs_stat. It will tell you the ASM / RAC, the instance number and this node the instance number is running on:

Name = ora.myrac1.ASM1.asm
TYPE = application
TARGET = ONLINE
STATUS = online on pmrac1

As for CARS DB instances:

Name = ora.myrac.myrac1.inst
TYPE = application
TARGET = ONLINE
STATUS = online on pmrac1

To determine which is the node that you are running your script on: host name must do.

Of course, all this will work only IF you have installed Clusterware. For environments not clustered, you must work with the ps - ef command, sqlplus and oratab file as you mentioned below, which makes it a bit more complicated. We could predict that's SO so OTHERWISE in your script - IF cluster, THEN do foo, otherwise do BLAH. Just an idea.

For this question:
Belongs to ASM cluster - (yes/no)
(If crsd.bin is running, ASM is clustered. Can this method be invoked always?)

IF you have a cluster installed, ASM should be part - is the default and recommendation. However, you can run in a broken configuration. You want to guess in your script and secure?

Just a few random ideas. Thank you
Markus

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But nowhere does how to get a cluster to appear as a "single Weblogic Server instance. Where this happens in the console files or config admin? Maybe it's a function of node Manager? Help, please. Thank you.
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I have a scenario where I need to set up a cluster of consistency so that it can be used in a cluster SOA or OSB. A BPEL application will be using coherence of cache to store temporary data, and retrieve that data later in the different process. Could you please explain to me what all the steps I have to follow in order to configure the cluster of coherence.

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Consistency Cluster configuration
Given the configuration,

If there are two packages of ejb - jar A and B, and each has a configuration file from the cache checked in these packages of jar and they have both the same name of the cluster and cluster-port specified.

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All hell

I am trying to troubleshoot a weblogic clustering issue and am hoping that I get help here.

Basically, I have properly configured a cluster between 2 managed server nodes. After you have configured node 1, I used the pack/unpack to build node 2. The combination seems to work and I'm able to start two managed servers. However the deployments fail on node 2 and succeed on node 1

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After further investigation, I noticed that there is a difference between how node 1 and node 2 are started i.e. different class paths. The node Manager allows us to launch the two servers.

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Shiva
I was able to understand the question. StartScriptEnabled = true on node 2, fixed the problem. Nodemanager using scripts separated on both nodes that was causing the server to be different properties
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[Extension name: consistency-web-spi, exact match: false].

you have that jar deployed as a shared library

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Hello

Setup is a cluster of VCS VCS a set up a Master and others as a slave.

Your points of termination/Codec must register to the VCS cluster (you need to update your DNS with VCS cluster name i.e. clustervcs.domain.com with the ip addresses of two VCS. You can use SRV records to do a primary and the other back). If your CODEC does not support the SRV record then you can put the IP of master VCS and the registration, the VCS Master will provide the idec with its ip address and ip address of the slave VCS.

A good link:

http://www.netcraftsmen.NET/blogs/entry/Cisco-VCs-clustering-configuration.html

I hope this helps.

Kind regards

Ahmed

Move cluster configured with replication SRM and Vsphere

All,
We go 2 groups in the near future to achieve a geographical distance between the 2 sites.
A cluster is equipped with VMware 5.0 replication SRM and vSphere and the other cluster running VMware 5.5 and SRM in combination with replication of vSphere.
What is the best way to move these clusters, I must stop the replication or interrupt the replication process and are these action to perform on SRM or we need to perform any action on the virtual machine itself?
I read that a stop is setting the State to not configured including destroy all files in the target directory.
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JConsole is a rudimentary indicator as to load the JAVA virtual machine and looking at newspaper planning could help if you know what to look for, but I would really like to know the details of a person who has perhaps done this before or who can guide me on the relevant documentation.
The Oracle documentation, I found so far seems to take you far and then you drops.
We are a site of Unix and are currently using a web server HTTP Oracle
Thank you

You can use Enterprise manager to monitor sessions between managed servers or the monitoring tool for apache (which is essentially what SST is running).

See you soon

John

http://John-Goodwin.blogspot.com/

WebLogic cluster steps

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I would like to explain a bit more on the infrastructure that I want to have.
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(2) I'll have apache in a single server.
(3) each weblogic will have its own adminserver.
(4) the weblgic servers will be connected to the same DB
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(6) server Apache is to balance requests from customers between the two servers, weblogic.
(7) I have weblogic12c installed on the servers.
Please let me know if all the info you need of clarification.
Thanks in advance.
Karthik S

Hello

Please follow the link for clustering on two boxes below

http://middlewaremagic.com/WebLogic/?p=971

and follow the link for apache communicate with the weblogic below grouped boxes,.

http://middlewaremagic.com/WebLogic/?p=1311

Kind regards

Fabian

HFM Application Cluster Configuration - failed
Hello

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Error Msg in the log file:
The server name duplicated SERVERNAME line: 1062 file:.\CHFMConfig.cpp error code: 0 x 0 error: the operation completed successfully.
The user has been properly set up DCOM limitations
Try to configure the cluster server.
Cannot set the application servers and Clusters. Line: 515 file:.\CHFMConfigUtil.cpp Error code: 0x8004082a error: #1578 IDispatch error
General error. Line: 827 file:.\CHFMConfigUtil.cpp Error code: 0 x 80040815 error: error IDispatch #1557

Thank you
Michel K
I removed the name of server in doubles in the HFM_Config.xml file and solved the problem.

Thank you

Help on consistency + Weblogic Cluster configuration

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