How to migrate to a new image running Pier-Magma?

I have a site running on Pier with Magma persistence.
I need to upgrade current image with site contents stay unchanged.
What are the ways of doing that?

 Thanks.
 Daniel.

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Даниил Баскаков wrote: If you are using the Magma-PersistencyManager it is quite simple.

The site contents are stored in magma.

In the new image, when you create a new kernel (of the same name) and
switch it to "PRMagmaPersistency" it will see that there is already a
kernel in the database and will ask if you wish to adopt it for that kernel.

Keith


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I do some site changes on Magma-powered image then quit image without
saving. On next entering that image I have no those changes. Is it a
right behavior?
Changes persists only if I save the image. I thought that changes are
not dependent on saving image as your letter seems to confirm.

Daniel

2008/4/11, Keith Hodges <[hidden email]>:

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>  If you are using the Magma-PersistencyManager it is quite simple.
>
>  The site contents are stored in magma.
>
>  In the new image, when you create a new kernel (of the same name) and
>  switch it to "PRMagmaPersistency" it will see that there is already a
>  kernel in the database and will ask if you wish to adopt it for that kernel.

Doesn't work... another kernel named 'Pier' appeared.
I explored MagmaSession's and see that in different sessions roots are
different. I found in one session root a needed kernel but current
session does not see it.
What is the right strategy of managing sessions?

> I do some site changes on Magma-powered image then quit image without
>  saving. On next entering that image I have no those changes. Is it a
>  right behavior?
>  Changes persists only if I save the image. I thought that changes are
>  not dependent on saving image as your letter seems to confirm.
>
>
> Daniel

Does anybody read me?

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>> I do some site changes on Magma-powered image then quit image without
>> saving. On next entering that image I have no those changes. Is it a
>> right behavior?
>> Changes persists only if I save the image. I thought that changes are
>> not dependent on saving image as your letter seems to confirm.
>
> Does anybody read me?

Yes, I am just unable to help you with the Magma storage :-(

Lukas

--
Lukas Renggli
http://www.lukas-renggli.ch


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Thank you.

I wonder if my understanding of Pier persistency is correct.
If I do some changes in Pier with Magma persistency and quit image
without saving. Do I see those changes when I start the image again?

Daniel

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> I wonder if my understanding of Pier persistency is correct.
> If I do some changes in Pier with Magma persistency and quit image
> without saving. Do I see those changes when I start the image again?

If you change the Pier code this is not saved.

If you edit a Pier page, this should be stored in the Magma database  
and therefor be persistent. As far as I know this is what the Magma  
persistency is all about.

Keith, can you confirm this?

Lukas

--
Lukas Renggli
http://www.lukas-renggli.ch


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Hi,

2008/4/16, Даниил Баскаков <[hidden email]>:
Where ?
Did you look at the preference (/seaside/config), then config next to pier.

Maybe there you can change your kernel...
But I've never used Magma too.

What I did was to export a wiki be serializing into a file and then, I
loaded it in the new wiki.
If not too big this can be a solution...
I couldn't make the smartreftreamwork so I used SIXX (available in universe).

see this post if you want to try
(http://www.nabble.com/-Pier--Image-crash-after-a-kernel-import-(through-SIXX)-td15117403.html)

you have to change the persistency first:
kernel persistency: PRNullPersistency new

then also (to get rid of block-contexts or MADynamicObject instances):
PRComponent allInstancesDo: [ :each | each reset ]

and to serialize:
|xmlString |
PRComponent allInstancesDo: [:ea | ea reset].
xmlString := (PRKernel instanceNamed: 'yourKernelName') sixxOn:
(FileStream fileNamed: 'yourFileName.xml')

to load:
PRKernel instances add: (Object readSixxFrom: (FileDirectory default
readOnlyFileNamed: 'yourFileName.xml'))

there should be a magma way though...

hth

Cédrick


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> Where ?

It appears at PRPierControlPanel in Persisted Kernels section.

>  Did you look at the preference (/seaside/config), then config next to pier.

Of course I did.
Thanx for the proposal, I saw this post about SIXX kernel importing.
But I interested in Magma of having persistency in the way as Lucas said.

Daniel

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If PRMagmaPersistency is enabled, then each change to a PRKernel should
be saved in the database, a restart without saving the image) should
pick up the changes.

The application that has Pier and Magma, should have a "Magma" control
panel, and a "Pier"
control panel. You can use the "Magma" control panel to see the open
magma sessions and each
of these should have an "explore" link which opens an explorer.

However, the "Pier" control panel, "Persisted Kernels" section also has
an "(explore)" link which opens an explorer
so you can see exactly what is in the database.

If you find that your kernel is not actually being persisted, then you
may have an older version of Seaside28Jetsam. I would make sure that
that is up to date.

Keith


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After playing with package versions I almost get to success now, but
have no time to check completely.
Here are some clues I found (if I am not mistaken you have relation to them):
(1) This script
(http://smallwiki.unibe.ch/smallwiki/pier/installationofseasidemagmaandpier/)
seems to be not working at least because of current MagmaServerLoader
has old dependencies.
(2) "Magma seasideHelper" from version 33 has "ProcessLocalVariable
subclass: #WACurrentMagmaHelper". I don't know what is
ProcessLocalVariable.

Daniel

2008/4/16, Keith Hodges <[hidden email]>:
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Даниил Баскаков wrote: Magma seasideHelper, depends upon the "Logging" package. In universes it
was not obvious what Logging depends on, however Logging loads the
package "ProcessSpecific".

You can load all of the necessary items by running:

Installer install: 'Logging'.

best regards

Keith


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