Hi Geert Josten,
I have tried all the options for the lock method, the doucment is
locked, but still other user can able to update the document even though
the lock is not yet released.
xdmp:lock-acquire("harmonyUsers.xml",
"exclusive",
"infinity",
"Admin has locked the document",
())
xdmp:lock-acquire("harmonyUsers.xml",
"exclusive",
"infinity",
"Admin has locked the document",
xs:unsignedLong(1200))
xdmp:lock-acquire("harmonyUsers.xml")
What should i do?
When i execute this:
<root>
{
for $locks in xdmp:document-locks()
return <document-URI>{xdmp:node-uri($locks)}</document-URI>
}
</root>
It is returning the document which i have locked, that means the document
is getting locked, but still there is no use of that lock, any how the
other user is able to update/insert the node in the document still.
Thanks and Regards,
Santhosh Rajasekaran
Tata Consultancy Services
Mailto: [email protected]
Website: http://www.tcs.com
____________________________________________
Experience certainty. IT Services
Business Solutions
Outsourcing
____________________________________________
Geert Josten <[email protected]>
Sent by: [email protected]
03/20/2009 03:09 PM
Please respond to
General Mark Logic Developer Discussion <[email protected]>
To
General Mark Logic Developer Discussion <[email protected]>
cc
Subject
RE: [MarkLogic Dev General] problem in locking a document using
xdmp:lock-acquire() function in marklogic - reg.,
Hi Santhosh,
You are passing the value "shared" as second argument to
xdmp:lock-acquire(). You should rather use "exclusive" instead. Moreover,
if you are just trying to synchronize updates to this file, MarkLogic
Server does that automatically. You might want to look at how so-called
'write-locks' work. I believe it is mentioned in the Developers guide.
Kind regards,
Geert
Drs. G.P.H. Josten
Consultant
Daidalos BV
Source of Innovation
Hoekeindsehof 1-4
2665 JZ Bleiswijk
Tel.: +31 (0) 10 850 1200
Fax: +31 (0) 10 850 1199
www.daidalos.nl
KvK 27164984
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From: [email protected] [
mailto:[email protected]] On Behalf Of Santhosh Raj
Sent: vrijdag 20 maart 2009 7:17
To: [email protected]
Subject: [MarkLogic Dev General] problem in locking a document using
xdmp:lock-acquire() function in marklogic - reg.,
Hi all,
I want to lock a particular document present in the marklogic
database, so that other users can't do any update/ modification to that
document untill the lock is released.
To achieve this task marklogic provides inbuilt functions
xdmp:lock-acquire() - Acquire a lock on a document or directory .
xdmp:lock-release() - Unlock a document or directory.
I used xdmp:lock-acquire() to lock a document by an user, but still that
particular document is modifiable(update/insert data to that document) by
other user.
Locking of document: (Current user name is : admin)
<result>
{
try{
<current-user>
{
xdmp:get-current-user( )
}
</current-user>,
xdmp:lock-acquire("harmonyUsers.xml",
"shared",
"infinity",
<href>http://example.com/~user</href>,
())
}catch ($e) {
"Error during acquiring lock on the document", $e
},
"Document locked"
}
</result>
Inserting a record to the same document (locked) by another user :
(Current user name is : santhosh)
xquery version "1.0-ml";
(: __________________________________________________________
:: (Q1.1)
:: Trying to insert a child node to the locked document.
::
:: __________________________________________________________
:)
<role-screen>
{
let $u := doc("harmonyUsers.xml")//use...@locked="false"]
return
if($u) then (
xdmp:node-insert-child($u,<user>
<userName>sonabh123</userName>
<userId>sonabh123</userId>
<password>sonabh123</password>
<role>123456</role>
</user>),
xdmp:get-current-user( )
)
else ()
}
</role-screen>
This insert operation is done successfully even though the document is
locked by other user(admin) .
This is the document which i loaded to marklogic server.
Can any body please suggest some solution or idea to this problem.
Thanks in advance.
Regards,
Santhosh Rajasekaran
Tata Consultancy Services
Mailto: [email protected]
Website: http://www.tcs.com
____________________________________________
Experience certainty. IT Services
Business Solutions
Outsourcing
____________________________________________
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