Magma recovery & Persistent Objects

[Chris Muller]

Hi Keith, normal Smalltalk collections such as Bag or
OrderedCollection are stored in contiguous ByteArray records, read and
written wholly.  If this is a problem, a MagmaCollection should be
used.  For more information:

  http://wiki.squeak.org/squeak/2639

Regards,
  Chris


On Thu, Apr 17, 2008 at 5:43 AM, Dr Keith A. Morneau
<keith.morneau at gmail.com> wrote:
> Chris,
>
>  Thanks, that worked. I have been playing around with saving and
>  retrieving objects.
>
>  First, I can not get the example of the swiki to create indexes to
>  work right. I first committed an OrderedCollection of objects. Then, I
>  needed to commit another set of different objects. I noticed that I
>  had to read the whole collection first, add to it, then recommit the
>  whole collection again. Is this the 'correct' way to do this? Or is
>  there a way to just commit the different objects to the repository?
>  BTW, I am not using MagmaCollection to do this. The amount of objects
>  I have persisting is pretty small.
>
>  Thanks for all your help!
>  Keith
>
>  On Wed, Apr 16, 2008 at 10:18 PM, Chris Muller <asqueaker at gmail.com> wrote:
>  > Ah, ok, it looks like you actually have an open repository (which
>  >  maintains its own "__system" session.  So try this:
>  >
>  >   MagmaRepositoryController initialize
>  >
>  >  To get back to a totally "clean state" you may also wish to do:
>  >
>  >   MagmaSession cleanUp
>  >
>  >  which will clean up any stray MagmaSessions you had lying around.
>  >
>  >
>  >  On Tue, Apr 15, 2008 at 9:32 PM, Dr Keith A. Morneau
>  >
>  >
>  > <keith.morneau at gmail.com> wrote:
>  >  > Hi Chris,
>  >  >
>  >  >  Thanks for the quick response. I tried that and I still have the
>  >  >  problem. This is what I get -
>  >  >
>  >  >  closing Magma repository /Users/kmorneau/Desktop/SqueakVM/myMagma.
>  >  >  Will reopen on next startup.
>  >  >  closing Magma repository /Users/kmorneau/desktop/SqueakVM/myMagma.
>  >  >  Will reopen on next startup.
>  >  >  closing Magma repository /Users/kmorneau/desktop/SqueakVM/myMagma.
>  >  >  Will reopen on next startup.
>  >  >  closing Magma repository /Users/kmorneau/desktop/squeakvm/MyMagma.
>  >  >  Will reopen on next startup.
>  >  >  closing Magma repository /Users/kmorneau/desktop/SqueakVM/myMagma.
>  >  >  Will reopen on next startup.
>  >  >  closing Magma repository /Users/kmorneau/desktop/SqueakVM/myMagma.
>  >  >  Will reopen on next startup.
>  >  >  closing Magma repository /Users/kmorneau/desktop/SqueakVM/myMagma.
>  >  >  Will reopen on next startup.
>  >  >  opening Magma repository /Users/kmorneau/Desktop/SqueakVM/myMagma
>  >  >  connecting to local-link to /Users/kmorneau/Desktop/SqueakVM/myMagma
>  >  >  as __system...
>  >  >  connection established.
>  >  >  opening Magma repository /Users/kmorneau/desktop/SqueakVM/myMagma
>  >  >  connecting to local-link to /Users/kmorneau/desktop/SqueakVM/myMagma
>  >  >  as __system...
>  >  >  connection established.
>  >  >  End of recovery group
>  >  >  opening Magma repository /Users/kmorneau/desktop/SqueakVM/myMagma
>  >  >  connecting to local-link to /Users/kmorneau/desktop/SqueakVM/myMagma
>  >  >  as __system...
>  >  >  connection established.
>  >  >  End of recovery group
>  >  >  opening Magma repository /Users/kmorneau/desktop/squeakvm/MyMagma
>  >  >  connecting to local-link to /Users/kmorneau/desktop/squeakvm/MyMagma
>  >  >  as __system...
>  >  >  connection established.
>  >  >  End of recovery group
>  >  >  opening Magma repository /Users/kmorneau/desktop/SqueakVM/myMagma
>  >  >  connecting to local-link to /Users/kmorneau/desktop/SqueakVM/myMagma
>  >  >  as __system...
>  >  >  connection established.
>  >  >  End of recovery group
>  >  >  opening Magma repository /Users/kmorneau/desktop/SqueakVM/myMagma
>  >  >  connecting to local-link to /Users/kmorneau/desktop/SqueakVM/myMagma
>  >  >  as __system...
>  >  >  connection established.
>  >  >  End of recovery group
>  >  >  opening Magma repository /Users/kmorneau/desktop/SqueakVM/myMagma
>  >  >  connecting to local-link to /Users/kmorneau/desktop/SqueakVM/myMagma
>  >  >  as __system...
>  >  >  connection established.
>  >  >  End of recovery group
>  >  >
>  >  >  Thanks,
>  >  >  Keith
>  >  >
>  >  >
>  >  >
>  >  >  On Tue, Apr 15, 2008 at 9:26 PM, Chris Muller <asqueaker at gmail.com> wrote:
>  >  >  > Hi Keith, try:
>  >  >  >
>  >  >  >   MagmaSession disconnectAndCloseAllConnectedSessions
>  >  >  >
>  >  >  >  - Chris
>  >  >  >
>  >  >  >
>  >  >  >
>  >  >  >  On Tue, Apr 15, 2008 at 9:16 PM, Dr Keith A. Morneau
>  >  >  >  <keith.morneau at gmail.com> wrote:
>  >  >  >  > Hello everyone,
>  >  >  >  >
>  >  >  >  >  I am a newbie to Magma. I have a problem that I need help with. I have
>  >  >  >  >  not closed open connections properly and now I have Squeak every time
>  >  >  >  >  I save and reboot the image Magma restarts the connections again. I
>  >  >  >  >  have the image telling me that is opening the magma connection 4
>  >  >  >  >  times. I have no idea how to clean this up and I need to.
>  >  >  >  >
>  >  >  >  >  I am connecting with the single user mode. I hope this makes sense.
>  >  >  >  >
>  >  >  >  >  Thanks for any help.
>  >  >  >  >
>  >  >  >  >  Keith
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>  >  >  >
>  >  >
>  >  >
>  >  >
>  >  >  --
>  >  >
>  >  >
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