subject:"\[Dspace\-tech\] Tomcat cluster configuration"

[Dspace-tech] Tomcat cluster configuration

2007-06-27 Thread Jesus Martin

Hi, I have been configuring Tomcat and DSpace to accomplish tomcat 
clustering and the persistence of sessions in two machines that are 
running Tomcat at the same time. First, I added the line of server.xml 
under the Engine line:
Engine defaultHost=localhost name=Catalina
Cluster 
className=org.apache.catalina.cluster.tcp.SimpleTcpCluster/
...

Moreover, we need to modify the objects that sessions of DSpace uses, 
consequently changing this objects for implementing the 
java.io.Serializable. In fact, DSpace's sessions only use one object, 
RequestInfo.java:

public class RequestInfo implements java.io.Serializable{.}

I made this changes with DSpace 1.4 , Tomcat 5.5.17 and Tomcat 6 and are 
working very well. I hope this explanations can help anyone.

Best regards,

Jesús Martín

-- 

..
 __
/ /  Jesús Martín García
  C E / S / C A  Tècnic en Sistemes
  /_/Centre de Supercomputació de Catalunya

  Gran Capità 2-4 (Edifici Nexus)  08034 Barcelona
  T. 93 205 6464  F.  93 205 6979  [EMAIL PROTECTED]
.. 


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Re: [Dspace-tech] Tomcat cluster configuration

2007-06-27 Thread James Rutherford

Hi,

It would be great if you could add some notes to the (embarrassingly
incomplete) wiki page that I started a few months ago:

http://wiki.dspace.org/HOWTO_Clustering

The page is mostly focussed on clustering of the database layer, so it
would be good to get more detailed information about setting up Tomcat.

cheers,

Jim

On Wed, Jun 27, 2007 at 09:57:47AM +0200, Jesus Martin wrote:
 Hi, I have been configuring Tomcat and DSpace to accomplish tomcat 
 clustering and the persistence of sessions in two machines that are 
 running Tomcat at the same time. First, I added the line of server.xml 
 under the Engine line:
 Engine defaultHost=localhost name=Catalina
 Cluster 
 className=org.apache.catalina.cluster.tcp.SimpleTcpCluster/
 ...
 
 Moreover, we need to modify the objects that sessions of DSpace uses, 
 consequently changing this objects for implementing the 
 java.io.Serializable. In fact, DSpace's sessions only use one object, 
 RequestInfo.java:
 
 public class RequestInfo implements java.io.Serializable{.}
 
 I made this changes with DSpace 1.4 , Tomcat 5.5.17 and Tomcat 6 and are 
 working very well. I hope this explanations can help anyone.
 
 Best regards,
 
 JesÃºs MartÃn
 
 -- 
 
 ..
  __
 / /  JesÃºs MartÃn GarcÃa
   C E / S / C A  TÃ¨cnic en Sistemes
   /_/Centre de SupercomputaciÃ³ de Catalunya
 
   Gran CapitÃ  2-4 (Edifici Nexus)  08034 Barcelona
   T. 93 205 6464  F.  93 205 6979  [EMAIL PROTECTED]
 .. 
 
 
 -
 This SF.net email is sponsored by DB2 Express
 Download DB2 Express C - the FREE version of DB2 express and take
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-- 
James Rutherford  |  Hewlett-Packard Limited registered Office:
Research Engineer |  Cain Road,
HP Labs   |  Bracknell,
Bristol, UK   |  Berks
+44 117 312 7066  |  RG12 1HN.
[EMAIL PROTECTED]   |  Registered No: 690597 England

The contents of this message and any attachments to it are confidential and
may be legally privileged. If you have received this message in error, you
should delete it from your system immediately and advise the sender. To any
recipient of this message within HP, unless otherwise stated you should
consider this message and attachments as HP CONFIDENTIAL.

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Re: [Dspace-tech] Tomcat cluster configuration

2007-06-27 Thread Jesus Martin

Hi, I added some notes to HOWTO_Clustering in DSpace's wiki fo 
clustering with Tomcat.

http://wiki.dspace.org/index.php//HOWTO_Clustering

cheers,

Jesús

James Rutherford wrote:
 Hi,

 It would be great if you could add some notes to the (embarrassingly
 incomplete) wiki page that I started a few months ago:

 http://wiki.dspace.org/HOWTO_Clustering

 The page is mostly focussed on clustering of the database layer, so it
 would be good to get more detailed information about setting up Tomcat.

 cheers,

 Jim

 On Wed, Jun 27, 2007 at 09:57:47AM +0200, Jesus Martin wrote:
   
 Hi, I have been configuring Tomcat and DSpace to accomplish tomcat 
 clustering and the persistence of sessions in two machines that are 
 running Tomcat at the same time. First, I added the line of server.xml 
 under the Engine line:
 Engine defaultHost=localhost name=Catalina
 Cluster 
 className=org.apache.catalina.cluster.tcp.SimpleTcpCluster/
 ...

 Moreover, we need to modify the objects that sessions of DSpace uses, 
 consequently changing this objects for implementing the 
 java.io.Serializable. In fact, DSpace's sessions only use one object, 
 RequestInfo.java:

 public class RequestInfo implements java.io.Serializable{.}

 I made this changes with DSpace 1.4 , Tomcat 5.5.17 and Tomcat 6 and are 
 working very well. I hope this explanations can help anyone.

 Best regards,

 JesÃºs MartÃn

 -- 

 ..
  __
 / /  JesÃºs MartÃn GarcÃa
   C E / S / C A  TÃ¨cnic en Sistemes
   /_/Centre de SupercomputaciÃ³ de Catalunya

   Gran CapitÃ  2-4 (Edifici Nexus)  08034 Barcelona
   T. 93 205 6464  F.  93 205 6979  [EMAIL PROTECTED]
 .. 


 -
 This SF.net email is sponsored by DB2 Express
 Download DB2 Express C - the FREE version of DB2 express and take
 control of your XML. No limits. Just data. Click to get it now.
 http://sourceforge.net/powerbar/db2/
 ___
 DSpace-tech mailing list
 DSpace-tech@lists.sourceforge.net
 https://lists.sourceforge.net/lists/listinfo/dspace-tech
 

   


-- 

..
 __
/ /  Jesús Martín García
  C E / S / C A  Tècnic en Sistemes
  /_/Centre de Supercomputació de Catalunya

  Gran Capità 2-4 (Edifici Nexus)  08034 Barcelona
  T. 93 205 6464  F.  93 205 6979  [EMAIL PROTECTED]
.. 


-
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Re: [Dspace-tech] Tomcat cluster configuration

2007-06-27 Thread Jodi Schneider


Thanks, Jesus. Since you and James are discussing it, I'll make some
comments about what's unclear to me from reading this page, as a novice:

-What is the path of server.xml?
-How do we modify the objects that sessions of DSpace uses?

The structure of this page
http://wiki.dspace.org/index.php//HOWTO_Clustering
is also unclear to me--it seems like a list of options that were tried. It
would be preferable to me (as a novice), to have a recommendation at the
top, clearly marked as such, followed by categorized alternatives. (For
instance, how does Terracotta relate to Tomcat)?

Scalability is definitely important, so and I hope that those who understand
it will continue improving these instructions, and provide some scalability
metrics as well at the stub
http://wiki.dspace.org/index.php/ScalabilityMetrics

Thanks again for your improvements!

-Jodi

On 6/27/07, Jesus Martin [EMAIL PROTECTED] wrote:


Hi, I added some notes to HOWTO_Clustering in DSpace's wiki fo
clustering with Tomcat.

http://wiki.dspace.org/index.php//HOWTO_Clustering

cheers,

Jesús

James Rutherford wrote:
 Hi,

 It would be great if you could add some notes to the (embarrassingly
 incomplete) wiki page that I started a few months ago:

 http://wiki.dspace.org/HOWTO_Clustering

 The page is mostly focussed on clustering of the database layer, so it
 would be good to get more detailed information about setting up Tomcat.

 cheers,

 Jim

 On Wed, Jun 27, 2007 at 09:57:47AM +0200, Jesus Martin wrote:

 Hi, I have been configuring Tomcat and DSpace to accomplish tomcat
 clustering and the persistence of sessions in two machines that are
 running Tomcat at the same time. First, I added the line of server.xml
 under the Engine line:
 Engine defaultHost=localhost name=Catalina
 Cluster
 className=org.apache.catalina.cluster.tcp.SimpleTcpCluster/
 ...

 Moreover, we need to modify the objects that sessions of DSpace uses,
 consequently changing this objects for implementing the
 java.io.Serializable. In fact, DSpace's sessions only use one object,
 RequestInfo.java:

 public class RequestInfo implements java.io.Serializable{.}

 I made this changes with DSpace 1.4 , Tomcat 5.5.17 and Tomcat 6 and
are
 working very well. I hope this explanations can help anyone.

 Best regards,

 JesÃºs MartÃn

 --

 ..
  __
 / /  JesÃºs MartÃn GarcÃa
   C E / S / C A  TÃ¨cnic en Sistemes
   /_/Centre de SupercomputaciÃ³ de Catalunya

   Gran CapitÃ  2-4 (Edifici Nexus)  08034 Barcelona
   T. 93 205 6464  F.  93 205 6979  [EMAIL PROTECTED]
 ..



-
 This SF.net email is sponsored by DB2 Express
 Download DB2 Express C - the FREE version of DB2 express and take
 control of your XML. No limits. Just data. Click to get it now.
 http://sourceforge.net/powerbar/db2/
 ___
 DSpace-tech mailing list
 DSpace-tech@lists.sourceforge.net
 https://lists.sourceforge.net/lists/listinfo/dspace-tech





--

..
 __
/ /  Jesús Martín García
  C E / S / C A  Tècnic en Sistemes
  /_/Centre de Supercomputació de Catalunya

  Gran Capità 2-4 (Edifici Nexus)  08034 Barcelona
  T. 93 205 6464  F.  93 205 6979  [EMAIL PROTECTED]
..


-
This SF.net email is sponsored by DB2 Express
Download DB2 Express C - the FREE version of DB2 express and take
control of your XML. No limits. Just data. Click to get it now.
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Re: [Dspace-tech] Tomcat cluster configuration

2007-06-27 Thread James Rutherford

On Wed, Jun 27, 2007 at 09:10:53AM -0400, Jodi Schneider wrote:
 -What is the path of server.xml?
 -How do we modify the objects that sessions of DSpace uses?

This depends on where you installed Tomcat. For me, it's here:

/etc/tomcat-5.5/server.xml

 The structure of this page
 http://wiki.dspace.org/index.php//HOWTO_Clustering
 is also unclear to me--it seems like a list of options that were tried.

That's pretty much exactly what it is :)

 It would be preferable to me (as a novice), to have a recommendation
 at the top, clearly marked as such, followed by categorized
 alternatives. (For instance, how does Terracotta relate to Tomcat)?

Well until Jesus filled in some blanks, the page was mostly a collection
of failed experiments, and so there wasn't much to recommend.

 Scalability is definitely important, so and I hope that those who understand
 it will continue improving these instructions, and provide some scalability
 metrics as well at the stub
 http://wiki.dspace.org/index.php/ScalabilityMetrics

Yes, indeed. I was going to start fleshing this page out with content
once I had some kind of clustered setup running, but that never happened
(I was only experimenting with the database aspect), so the whole effort
lost momentum.

cheers,

Jim

-- 
James Rutherford  |  Hewlett-Packard Limited registered Office:
Research Engineer |  Cain Road,
HP Labs   |  Bracknell,
Bristol, UK   |  Berks
+44 117 312 7066  |  RG12 1HN.
[EMAIL PROTECTED]   |  Registered No: 690597 England

The contents of this message and any attachments to it are confidential and
may be legally privileged. If you have received this message in error, you
should delete it from your system immediately and advise the sender. To any
recipient of this message within HP, unless otherwise stated you should
consider this message and attachments as HP CONFIDENTIAL.

-
This SF.net email is sponsored by DB2 Express
Download DB2 Express C - the FREE version of DB2 express and take
control of your XML. No limits. Just data. Click to get it now.
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Re: [Dspace-tech] Tomcat cluster configuration

2007-06-27 Thread Jesus Martin

Jodi, the server.xml is in the /tomcat-directory/conf/. And you have to 
modify one class, in concrete RequestInfo.java making this class 
serializable adding the following code in RequestInfo.java:

java class RequestInfo implements java.io.Serializable{

After this you have to recompile the DSpace code, stop Tomcat, copy the 
war in /tomcat-directory/webapps/ and start Tomcat.

cheers,

Jesús

Jodi Schneider wrote:
 Thanks, Jesus. Since you and James are discussing it, I'll make some 
 comments about what's unclear to me from reading this page, as a novice:

 -What is the path of server.xml?
 -How do we modify the objects that sessions of DSpace uses?

 The structure of this page
 http://wiki.dspace.org/index.php//HOWTO_Clustering
 is also unclear to me--it seems like a list of options that were 
 tried. It would be preferable to me (as a novice), to have a 
 recommendation at the top, clearly marked as such, followed by 
 categorized alternatives. (For instance, how does Terracotta relate to 
 Tomcat)?

 Scalability is definitely important, so and I hope that those who 
 understand it will continue improving these instructions, and provide 
 some scalability metrics as well at the stub 
 http://wiki.dspace.org/index.php/ScalabilityMetrics

 Thanks again for your improvements!

 -Jodi

 On 6/27/07, *Jesus Martin*  [EMAIL PROTECTED] 
 mailto:[EMAIL PROTECTED] wrote:

 Hi, I added some notes to HOWTO_Clustering in DSpace's wiki fo
 clustering with Tomcat.

 http://wiki.dspace.org/index.php//HOWTO_Clustering

 cheers,

 Jesús

 James Rutherford wrote:
  Hi,
 
  It would be great if you could add some notes to the (embarrassingly
  incomplete) wiki page that I started a few months ago:
 
  http://wiki.dspace.org/HOWTO_Clustering
 http://wiki.dspace.org/HOWTO_Clustering
 
  The page is mostly focussed on clustering of the database layer,
 so it
  would be good to get more detailed information about setting up
 Tomcat.
 
  cheers,
 
  Jim
 
  On Wed, Jun 27, 2007 at 09:57:47AM +0200, Jesus Martin wrote:
 
  Hi, I have been configuring Tomcat and DSpace to accomplish tomcat
  clustering and the persistence of sessions in two machines that
 are
  running Tomcat at the same time. First, I added the line of
 server.xml
  under the Engine line:
  Engine defaultHost=localhost name=Catalina
  Cluster
  className=org.apache.catalina.cluster.tcp.SimpleTcpCluster/
  ...
 
  Moreover, we need to modify the objects that sessions of DSpace
 uses,
  consequently changing this objects for implementing the
  java.io.Serializable. In fact, DSpace's sessions only use one
 object,
  RequestInfo.java:
 
  public class RequestInfo implements java.io.Serializable{.}
 
  I made this changes with DSpace 1.4 , Tomcat 5.5.17 and Tomcat
 6 and are
  working very well. I hope this explanations can help anyone.
 
  Best regards,
 
  JesÃºs MartÃn
 
  --
 
 
 ..
   __
  / /  JesÃºs MartÃn GarcÃa
C E / S / C A  TÃ¨cnic en Sistemes
/_/Centre de SupercomputaciÃ³ de Catalunya
 
Gran CapitÃ  2-4 (Edifici Nexus)  08034 Barcelona
T. 93 205 6464  F.  93 205 6979   [EMAIL PROTECTED]
 mailto:[EMAIL PROTECTED]
 
 ..
 
 
 
 -
  This SF.net email is sponsored by DB2 Express
  Download DB2 Express C - the FREE version of DB2 express and take
  control of your XML. No limits. Just data. Click to get it now.
  http://sourceforge.net/powerbar/db2/
  ___
  DSpace-tech mailing list
  DSpace-tech@lists.sourceforge.net
 mailto:DSpace-tech@lists.sourceforge.net
  https://lists.sourceforge.net/lists/listinfo/dspace-tech
 
 
 


 --

 ..

  __
 / /  Jesús Martín García
   C E / S / C A  Tècnic en Sistemes
   /_/Centre de Supercomputació de Catalunya

   Gran Capità 2-4 (Edifici Nexus)  08034 Barcelona
   T. 93 205 6464  F.  93 205 6979  [EMAIL PROTECTED]
 mailto:[EMAIL PROTECTED]
 ..


 -

 This SF.net email is sponsored by DB2 Express
 Download DB2 Express C - the FREE version of DB2 express and take
 control of your XML. No limits. Just data. Click to get it now.
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[Dspace-tech] Tomcat cluster configuration

Re: [Dspace-tech] Tomcat cluster configuration

Re: [Dspace-tech] Tomcat cluster configuration

Re: [Dspace-tech] Tomcat cluster configuration

Re: [Dspace-tech] Tomcat cluster configuration

Re: [Dspace-tech] Tomcat cluster configuration

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