AddIndiex on multiple nodes

Hi,
We all know addindex command for adding an index,
what I want to learn is how can I use this command to make a unique index on multiple elements.
My CityList.xml file has CityID and CountryID.
I want both as one Index that is unique so that quering is fast rather than two non unique indexes, just the way we can do a composite PK in RDBMs.
Thanks For Helping Me And Others Out On This One
DBXML Newbie
Please help as this is an urgent issue
null

Hi Sarva,
You cannot define an index on multiple elements for a Berkeley DB XML container, as you would do within an RDBMS for a composite primary key.
Nevertheless, you can define two indexes, one on CityID and one on CountryID. Your query probably checks for equality of those two with predefined values, so both of the indexes that you'll define will be used. You can inspect the query plan to verify this.
A better workaround might be to create a metadata node that represents a composite value out of the two id's by taking the values of the elements (city id, and country id) and creating a concatenated string (e.g.: "country_id - city_id") or a decimal (this value will have to be unique for every country_id - city_id pair, e.g.: country_id * 10.000 + city_id). Than, you'll have to add an index on that metadata node, and modify your queries to look for the value of the metadata node that represent the country_id, city_id pair.
Regards,
Andrei

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Hi,
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http://social.msdn.microsoft.com/Forums/en-US/biztalkgeneral/thread/ecdff241-6795-4a95-bad7-48fca4410dfb
http://www.epinaki.com/2011/05/other-options-to-using-biztalk-table-looping-functoid-par-i/
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Please Mark This As Answer If This Helps You.
http://shaileshbiztalk.blogspot.com/

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A
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Edited by: Armin Reichert on Jan 29, 2008 2:33 PM

Hi,
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TreeByNesting
http://help.sap.com/saphelp_nw70/helpdata/en/92/12a74046033913e10000000a155106/content.htm
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/webcontent/uuid/28113de9-0601-0010-71a3-c87806865f26?rid=/library/uuid/49f2ea90-0201-0010-ce8e-de18b94aee2d#31 [original link is broken]
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Can Cluster Apex MS's across multiple nodes for load balancing? If Yes/No, any supportive doc's will be much appreciated.
Here is what I did ..........
I tried multiple MS's on different nodes for Apex Domain (clustered)
Deployed apex.war, i.war with targets pointing to cluster.
Apex listener techstack is shared filesystem $HOME/apex, where apex-config.xml and bdb are available
Anyone of the MS's whichever started up first is locking up bdb and 500 server shows up when internal workspace is being launched with host specific url, where as it works fine for the host which actually locked up bdb (first MS that was started)
2nd MS shows errors as below in log files ..
Caused By: com.sleepycat.je.EnvironmentLockedException: (JE 4.0.103)$HOME/apex/bdb The environment cannot be locked for single writer access. ENV_LOCKED: The je.lck file could not be locked. Environment is invalid and must be closed.
Its expected behavior until here .....
++++ I tried something to get it working ++++
Whilst both MS's are up and running, delete $HOME/apex/bdb but let apex-config,xml be as it is...now the internal workspace urls for both hosts work fine. I logged into host specific urls and navigated, created/edited users.,etc and it is all looking good but it did not create new bdb directory under $HOME/apex ...!!
Having said its working fine, the same issue repeats after the MS's bounce. So I did put a command line to delete bdb dir once the MS comes up to avoid the issue but really not sure if this is the right way at all?
Geek's ...awaiting your advice!!

Hey there,
I managed to fulfill my requirement..
If its a cluster on same machine or across machines, this should work
1. Login to machine, cd $DOMAIN_HOME
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#If you are planning for cluster spawning MS's across machines, make sure you create the dir's on step 2 for each machine respectively. (in my case $DOMAIN_HOME is not shared)
3. Copy apex-config.xml from the /tmp/apex or whatever location you have it currently to Apex_lsn_config/<MS1> Apex_lsn_config/<MS2>
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Hint: Search for "iterativeDev" and append the same line with -Djava.jo.tmpdir
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<context-param>
<param-name>config.dir</param-name>
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8. Brew a Coffee for yourself :)
- You find the instructions on creating a cluster from weblogic documentation, the steps mentioned above are only to overcome the bdb locking issue whilst creating a cluster.
Did it help?
Edited by: Oratime on Mar 25, 2013 2:44 AM

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Hi,
Our Application works when we deploy it on a single node. But the moment we deploy
it with multiple nodes,we are getting a exception:
java.lang.NoClassDefFoundError: javax/xml/bind/UnmarshalException
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:120)
Our deployment looks correct for me.
We have specified each node in the target like:
<EJBComponent Name="ecommerce" Targets="monode3,monode2,monode1,monode4,monode5,monode6"
URI="ecommerce.jar"/>
Any clues from anyone?
Thanks,
Jeeva

You didn't give the full stack trace. No thread starts executing at
Class.forName ;-)
What's happening is that you are dealing with XML, probably in your
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XML pops out onto the other end of the wire, the code loaded from the system
classpath tries to deserialize it, but can't find your application classes.
That's a common problem with object transfer protocols.
Do you know where you are using javax/xml?
Peace,
Cameron Purdy
Tangosol Inc.
Tangosol Coherence: Clustered Coherent Cache for J2EE
Information at http://www.tangosol.com/
"Jeeva" <[email protected]> wrote in message
news:3c3a8401$[email protected]..
>
Hi,
Our Application works when we deploy it on a single node. But the momentwe deploy
it with multiple nodes,we are getting a exception:
java.lang.NoClassDefFoundError: javax/xml/bind/UnmarshalException
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:120)
Our deployment looks correct for me.
We have specified each node in the target like:
<EJBComponent Name="ecommerce"Targets="monode3,monode2,monode1,monode4,monode5,monode6"
URI="ecommerce.jar"/>
Any clues from anyone?
Thanks,
Jeeva

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=========================================
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Oracle Virtual Directory (OVD) 11gR1 and 10.1.4
Sun iPlanet version 4.1.3
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If performance is not an issue, can I use default file-based policy store in this case?
If it's impossible for the customer to buy oid at this time, what's the possible solution?
Thanks a lot!
Regards

You can configure directly with AD.
Basically your WebLogic server needs to be configured to talk to AD. You can configure an Identity provider in Weblogic server which uses AD as LDAP.
This should work in multi-node environment.
Also, i do not see any reason why file based jazn-data should not work.
Best solution from my perspective if Weblogic AD configuration does not work:
Create and manage your users and roles in Weblogic embedded LDAP. All you have to change in your application is the realm to the name of weblogic realm(default is myrealm) and while deploying make sure you uncheck the create users and roles.
Regards,
Venkat

AddIndiex on multiple nodes

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