RE: Help: deadlock with concurent access to entity bean
Oracle, MS SQL, Sybase 11 & 12, Hypersonic
database-schemas are key in this...
However, I don't store files in the database but have built a service that
sync's a number of dir's in a cluster/island, so it handles all file
replication
without hitting the DB; I map Objects to clob in Oracle, VARBINARY in Sybase
& MSSQL.
I haven't persisted any object above 30 K
-Original Message-
From: Agus K. Pranantoseno [mailto:[EMAIL PROTECTED]]
Sent: Miércoles, 17 de Enero de 2001 22:52
To: Orion-Interest
Subject: Re: Help: deadlock with concurent access to entity bean
Do u succedded using BLOB to map a picture ?? do u experiance size limit ??
i have tried CMP picture bean myself (mapped to bean) but somehow on image
more than 1k it's failed to store to the db (no exception thrown) so i used
LONG RAW instead (i used oracle as db). what database do u used ??
- Original Message -
From: Juan Lorandi (Chile) <[EMAIL PROTECTED]>
To: Orion-Interest <[EMAIL PROTECTED]>
Sent: Thursday, January 18, 2001 5:36 AM
Subject: RE: Help: deadlock with concurent access to entity bean
check Bug #161 & Bug #170 in bugzilla...
supposedly there's a workaround to Bug #170, but I'm not clear on exactly
how to use it
JP
-Original Message-
From: Elhadi barkat [mailto:[EMAIL PROTECTED]]
Sent: Miércoles, 17 de Enero de 2001 16:57
To: Orion-Interest
Subject: Help: deadlock with concurent access to entity bean
Hi,
During heavy test of my CMP picture bean (mapped to a table with a BLOB),
deadlocks occur when I try to access it concurently from different clients,
a threaded java application, a web client and a proprietary messaging
service within orion
The result is that my db table is no more accessible and I don't get any
exceptions
Could someone give me a push on this issue. I'm stucked on it for the day
Hadi
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Tim Endres
Sent: mercredi, 17. janvier 2001 19:10
To: Orion-Interest
Cc: Claes Theander
Subject: Re: Stand-alone-client
Try using:
prop.setProperty(
"java.naming.factory.initial",
"com.evermind.server.rmi.ApplicationClientInitialContextFactory");
> Hello!
>
> I'm trying to connect to my EJB's from a stand alone client like this:
>
> Properties prop = new Properties();
>
>
prop.setProperty("java.naming.factory.initial","com.evermind.server.rmi.RMII
nitialContextFactory");
>
>
> prop.setProperty("java.naming.provider.url","ormi://localhost/myApp");
> prop.setProperty("java.naming.security.principal","admin");
> prop.setProperty("java.naming.security.credentials","123");
> Context con = new InitialContext(prop);
> boundObject = con.lookup("java:comp/env/ejb/XXXHome");
> xxxHome =
> (XXXHome)PortableRemoteObject.narrow(boundObject,XXXHome.class);
>
> Im getting this error message:
> "javax.naming.NameNotFoundException: java:comp/env/ejb/XXHome not
> found."
> I know that the EJB's are working cause I'm able to access them from a
> jsp-page.
> I have refs to the EJB in application-client.xml.
>
> Any suggestions ?
> /C.
>
>
>
>
>
RE: Help: deadlock with concurent access to entity bean
Storing Images works for me using DB2
it should also works with DBs supporting BLOB
1) first check that your db schema config file defines a mapping between
java.io.Serializable and BLOB
2) implement a Picture class that implements
Serializable
--->
public class Picture implements Serializable {
public Object data;
public Picture(){}
public void setData(byte[] data) {
this.data = data.clone();
}
public byte[] getData() {
return (byte[])data;
}
}
3) in your bean declare your picture as an instance of Picture class and
deploy it as a container
managed field
Hope it'll work for you
As you read it in my previous message, I'm facing deadlocks with a heavy
concurent access to PictureBean
I'm still searching for a solution
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Agus K.
Pranantoseno
Sent: jeudi, 18. janvier 2001 02:52
To: Orion-Interest
Subject: Re: Help: deadlock with concurent access to entity bean
Do u succedded using BLOB to map a picture ?? do u experiance size limit ??
i have tried CMP picture bean myself (mapped to bean) but somehow on image
more than 1k it's failed to store to the db (no exception thrown) so i used
LONG RAW instead (i used oracle as db). what database do u used ??
- Original Message -
From: Juan Lorandi (Chile) <[EMAIL PROTECTED]>
To: Orion-Interest <[EMAIL PROTECTED]>
Sent: Thursday, January 18, 2001 5:36 AM
Subject: RE: Help: deadlock with concurent access to entity bean
check Bug #161 & Bug #170 in bugzilla...
supposedly there's a workaround to Bug #170, but I'm not clear on exactly
how to use it
JP
-Original Message-
From: Elhadi barkat [mailto:[EMAIL PROTECTED]]
Sent: Miércoles, 17 de Enero de 2001 16:57
To: Orion-Interest
Subject: Help: deadlock with concurent access to entity bean
Hi,
During heavy test of my CMP picture bean (mapped to a table with a BLOB),
deadlocks occur when I try to access it concurently from different clients,
a threaded java application, a web client and a proprietary messaging
service within orion
The result is that my db table is no more accessible and I don't get any
exceptions
Could someone give me a push on this issue. I'm stucked on it for the day
Hadi
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Tim Endres
Sent: mercredi, 17. janvier 2001 19:10
To: Orion-Interest
Cc: Claes Theander
Subject: Re: Stand-alone-client
Try using:
prop.setProperty(
"java.naming.factory.initial",
"com.evermind.server.rmi.ApplicationClientInitialContextFactory");
> Hello!
>
> I'm trying to connect to my EJB's from a stand alone client like this:
>
> Properties prop = new Properties();
>
>
prop.setProperty("java.naming.factory.initial","com.evermind.server.rmi.RMII
nitialContextFactory");
>
>
> prop.setProperty("java.naming.provider.url","ormi://localhost/myApp");
> prop.setProperty("java.naming.security.principal","admin");
> prop.setProperty("java.naming.security.credentials","123");
> Context con = new InitialContext(prop);
> boundObject = con.lookup("java:comp/env/ejb/XXXHome");
> xxxHome =
> (XXXHome)PortableRemoteObject.narrow(boundObject,XXXHome.class);
>
> Im getting this error message:
> "javax.naming.NameNotFoundException: java:comp/env/ejb/XXHome not
> found."
> I know that the EJB's are working cause I'm able to access them from a
> jsp-page.
> I have refs to the EJB in application-client.xml.
>
> Any suggestions ?
> /C.
>
>
>
>
>
Re: Help: deadlock with concurent access to entity bean
Do u succedded using BLOB to map a picture ?? do u experiance size limit ??
i have tried CMP picture bean myself (mapped to bean) but somehow on image
more than 1k it's failed to store to the db (no exception thrown) so i used
LONG RAW instead (i used oracle as db). what database do u used ??
- Original Message -
From: Juan Lorandi (Chile) <[EMAIL PROTECTED]>
To: Orion-Interest <[EMAIL PROTECTED]>
Sent: Thursday, January 18, 2001 5:36 AM
Subject: RE: Help: deadlock with concurent access to entity bean
check Bug #161 & Bug #170 in bugzilla...
supposedly there's a workaround to Bug #170, but I'm not clear on exactly
how to use it
JP
-Original Message-
From: Elhadi barkat [mailto:[EMAIL PROTECTED]]
Sent: Miércoles, 17 de Enero de 2001 16:57
To: Orion-Interest
Subject: Help: deadlock with concurent access to entity bean
Hi,
During heavy test of my CMP picture bean (mapped to a table with a BLOB),
deadlocks occur when I try to access it concurently from different clients,
a threaded java application, a web client and a proprietary messaging
service within orion
The result is that my db table is no more accessible and I don't get any
exceptions
Could someone give me a push on this issue. I'm stucked on it for the day
Hadi
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Tim Endres
Sent: mercredi, 17. janvier 2001 19:10
To: Orion-Interest
Cc: Claes Theander
Subject: Re: Stand-alone-client
Try using:
prop.setProperty(
"java.naming.factory.initial",
"com.evermind.server.rmi.ApplicationClientInitialContextFactory");
> Hello!
>
> I'm trying to connect to my EJB's from a stand alone client like this:
>
> Properties prop = new Properties();
>
>
prop.setProperty("java.naming.factory.initial","com.evermind.server.rmi.RMII
nitialContextFactory");
>
>
> prop.setProperty("java.naming.provider.url","ormi://localhost/myApp");
> prop.setProperty("java.naming.security.principal","admin");
> prop.setProperty("java.naming.security.credentials","123");
> Context con = new InitialContext(prop);
> boundObject = con.lookup("java:comp/env/ejb/XXXHome");
> xxxHome =
> (XXXHome)PortableRemoteObject.narrow(boundObject,XXXHome.class);
>
> Im getting this error message:
> "javax.naming.NameNotFoundException: java:comp/env/ejb/XXHome not
> found."
> I know that the EJB's are working cause I'm able to access them from a
> jsp-page.
> I have refs to the EJB in application-client.xml.
>
> Any suggestions ?
> /C.
>
>
>
>
>
RE: Help: deadlock with concurent access to entity bean
check Bug #161 & Bug #170 in bugzilla...
supposedly there's a workaround to Bug #170, but I'm not clear on exactly
how to use it
JP
-Original Message-
From: Elhadi barkat [mailto:[EMAIL PROTECTED]]
Sent: Miércoles, 17 de Enero de 2001 16:57
To: Orion-Interest
Subject: Help: deadlock with concurent access to entity bean
Hi,
During heavy test of my CMP picture bean (mapped to a table with a BLOB),
deadlocks occur when I try to access it concurently from different clients,
a threaded java application, a web client and a proprietary messaging
service within orion
The result is that my db table is no more accessible and I don't get any
exceptions
Could someone give me a push on this issue. I'm stucked on it for the day
Hadi
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Tim Endres
Sent: mercredi, 17. janvier 2001 19:10
To: Orion-Interest
Cc: Claes Theander
Subject: Re: Stand-alone-client
Try using:
prop.setProperty(
"java.naming.factory.initial",
"com.evermind.server.rmi.ApplicationClientInitialContextFactory");
> Hello!
>
> I'm trying to connect to my EJB's from a stand alone client like this:
>
> Properties prop = new Properties();
>
>
prop.setProperty("java.naming.factory.initial","com.evermind.server.rmi.RMII
nitialContextFactory");
>
>
> prop.setProperty("java.naming.provider.url","ormi://localhost/myApp");
> prop.setProperty("java.naming.security.principal","admin");
> prop.setProperty("java.naming.security.credentials","123");
> Context con = new InitialContext(prop);
> boundObject = con.lookup("java:comp/env/ejb/XXXHome");
> xxxHome =
> (XXXHome)PortableRemoteObject.narrow(boundObject,XXXHome.class);
>
> Im getting this error message:
> "javax.naming.NameNotFoundException: java:comp/env/ejb/XXHome not
> found."
> I know that the EJB's are working cause I'm able to access them from a
> jsp-page.
> I have refs to the EJB in application-client.xml.
>
> Any suggestions ?
> /C.
>
>
>
>
>
