Re: [xmlblaster-devel] Getting Cluster Information ...

["Arghad Arnaout" <arghad at gmail.com>]

OK Marcel:
nodeInfo.getConnectQosData();
the visibility of this method is not public, it is with default visibility, so I could not use it from outside of the package org.xmlBlaster.engine.cluster 
so can we put it as public, or it should stay with the default visibility  ... 
Thanx again
ARGHAD

On 4/22/06, Marcel Ruff <mr at marcelruff.info> wrote:

Arghad Arnaout wrote:
> Hallo Marcel:
>
> Would you please to tell me how I can use NodeInfo Class to get the IP
> and the Port of the node ??
nodeInfo.getConnectQosData().getAddress().getRawAddress();

should return something like

  socket://192.168.1.1:7607

regards
Marcel
>
> Regards
> ARGHAD
>
>
> On 4/20/06, * Marcel Ruff* < mr at marcelruff.info
> <mailto:mr at marcelruff.info>> wrote:
>
>     Hmm,
>
>     if you look at the cluster configuration:
>
>     ==============
>     cluster.node.id=heron.mycomp.com
>     ==============
>     This defines the unique name of a cluster node.
>
>     (see
>     http://www.xmlblaster.org/xmlBlaster/doc/requirements/cluster.html)
>
>     The following configuration could be easily a message content.
>     The few classes in org/xmlBlaster/engine/cluster do all cluster
>     specific
>     processing.
>
>     <clusternode id='heron.mycomp.com <http://heron.mycomp.com>'>
>        <connect><qos>
>           <address type='IOR'>
>              IOR:09456087000
>           </address>
>           <address type='XMLRPC'>
>               http://www.mycomp.com/XMLRPC/
>           </address>
>           <callback type='SOCKET'>
>              socket://mycomp.com:7604
>           </callback>
>        </qos><connect>
>
>        <master type='DomainToMaster' version='0.9'>
>           <![CDATA[
>              <key domain='RUGBY'/>
>              <key type='XPATH'>//STOCK</key>
>           ]]>
>        </master>
>        <master stratum='1' refId='frodo' type='MyOwnMapperPlugin'
>     version='2.0'>
>           <![CDATA[My own rule]]>
>        </master>
>
>        <state>
>           <cpu id='0' idle='40'/>
>           <cpu id='1' idle='44'/>
>           <ram free='12000'/>
>        </state>
>     </clusternode>
>
>
>     The NodeParser.java class parses this xml:
>     - NodeInfo.java parses the above <connect> address informations,
>     - NodeDomainInfo.java parses the <master> part
>     - NodeStateInfo.java parses the <state> part (is currently not used)
>
>     ClusterManager.java:221 starts parsing the above XML given from
>     xmlBlaster.properties .
>     We could now as well send the XML with a message, say to topic
>
>        <key oid='__sys__cluster.node[heron.mycomp.com
>     <http://heron.mycomp.com>]'>
>
>     and the ClusterManager could subscribe on topics starting
>     with '__sys__cluster.node' (or easier just intercept it in
>     RequestBroker.java)
>     and reconfigure itself.
>     This needs to be looked at in more detail and there are certainly some
>     subtle issues popping up during coding but generally it should work.
>
>     If you gonna code it you are welcome to contribute
>     it to xmlBlaster,
>
>     regards
>     Marcel
>
>
>
>     Arghad Arnaout wrote:
>     > Hallo Marcel:
>     > you wrote
>     > " In fact it was/is planned that each cluster node information is a
>     > message so we
>     > can dynamically reconfigure cluster nodes, but this approach
>     needs some
>     > lines of code to be added, "
>     >
>     > So would you please to explain that ??!!
>     > How we can implement that to configure the cluster node dynamically
>     > ... ????
>     >
>     > Thank you ..
>     >
>     > ARGHAD
>     >
>     > On 4/17/06, *Marcel Ruff* < mr at marcelruff.info
>     <mailto:mr at marcelruff.info>
>     > <mailto: mr at marcelruff.info <mailto:mr at marcelruff.info>>> wrote:
>     >
>     >     Arghad Arnaout wrote:
>     >     > Hallo everybody:
>     >     >
>     >     > OK .. regarding to the business requirements, we need to know
>     >     and see
>     >     > the information of all xmlBlaster nodes in xmlBlaster Cluster,
>     >     > so my design to solve this issue in xmlBlaster Environment is
>     >     like the
>     >     > following:
>     >     >
>     >     > I designed such a plugin that runs at each node of the
>     cluster and
>     >     > this plugin publishes the information about the current
>     node under a
>     >     > specific topic, so what I need to do from the client side
>     just
>     >     to get
>     >     > the messages under this topic (using get() or subscribe()).
>     >     >
>     >     > So .. is that the right way to implement such things ???
>     >     Yes, this way is OK.
>     >
>     >     In fact it was/is planned that each cluster node information
>     is a
>     >     message so we
>     >     can dynamically reconfigure cluster nodes, but this approach
>     needs
>     >     some
>     >     lines of code to be added,
>     >
>     >     regards
>     >     Marcel
>     >     > All the comments are welcomed...
>     >     >
>     >     > Thank you
>     >     > ARGHAD
>     >     >
>     >
>     >
>
>