Corrupt database?

[Chris Muller]

Hi Hernán, this could mean two clients had different notions of what
class 378 is.  I would use the FileTraverser to take a count of your
378's; see first if you have consistency.

Do you have any suspicions about the cause of the problem?

some questions:

- What version of Magma?

- Is DateQualifier a kind-of Set?

- Did you extend (subclass) any class included in the MagmaSession protocol?

 - Chris

On Mon, May 11, 2009 at 3:03 PM, Hernán Morales Durand
<hernan.morales at gmail.com> wrote:
> 2009/5/7 Chris Muller <ma.chris.m at gmail.com>:
>>
>> Option 2:  What matters is that STBUser buffers in the repository all
>> point consistently to the correct class version.  Write a script using
>> MagmaFileTraverser to interrogate all of the Fixed buffers ("type =
>> 3") where classId=126, check that their versions all are correct and
>> consistent with their number of instVars of the Buffer
>> (#objectInstSize).
>
> I have a similar problem ( 'DateQualifier cannot have variable sized
> instances' ) but in my case there's only one version of DateQualifier,
> ( i.e. aMagmaClassIdManager definitionForClassId: 378 version: 2 fails
> because non-existent index).  Here objectInstSize = 2 and
> sourceDefinition namedInstSize = 3, resulting in indexedSize = -1 and
> performing the #basicNew:
>
> #namedInstSize is correct, the DateQualifier's superclass has 3
> instance variables, the output of Jerry's first script would be:
>
> Index: 1 Version: 1 ivar count: 3
>
> So I wrote the script you suggested:
>
> ( MagmaFileTraverser for: 'Magma' ) open
>        anchorGraphDo: [ : buffer |
>                ( buffer classId = 378 and: [ buffer class = MaFixedObjectBuffer ] )
>                        ifTrue: [ buffer objectInstSize inspect ]
>                ].
>
> but still fails with the same error. My problem is that I cannot open
> the repository to commit any corrections because of this error.
>
> 11 May 2009 4:47:59 pm
> VM: Win32 - a SmalltalkImage
> Image: Squeak3.10.2 [latest update: #7179]
>
> SecurityManager state:
> Restricted: false
> FileAccess: true
> SocketAccess: true
> Working Dir C:\Squeak 3.9
> Trusted Dir C:\Squeak 3.9\hmorales
> Untrusted Dir C:\My Squeak\hmorales
>
> DateQualifier class(Object)>>error:
>        Receiver: DateQualifier
>        Arguments and temporary variables:
>                aString:        'DateQualifier cannot have variable sized instances'
>        Receiver's instance variables:
>                superclass:     AbstractTitleQualifier
>                methodDict:     a MethodDictionary(#distantGetter->a CompiledMethod
> (720) #initiali...etc...
>                format:         136
>                instanceVariables:      nil
>                organization:   ('printing' printOn: printQualifierOn:)
> ('initialization' distant...etc...
>                subclasses:     nil
>                name:   #DateQualifier
>                classPool:      nil
>                sharedPools:    nil
>                environment:    a SystemDictionary(lots of globals)
>                category:       #'DocModel-Titles'
>
> DateQualifier class(Behavior)>>basicNew:
>        Receiver: DateQualifier
>        Arguments and temporary variables:
>                sizeRequested:  -1
>        Receiver's instance variables:
>                superclass:     AbstractTitleQualifier
>                methodDict:     a MethodDictionary(#distantGetter->a CompiledMethod
> (720) #initiali...etc...
>                format:         136
>                instanceVariables:      nil
>                organization:   ('printing' printOn: printQualifierOn:)
> ('initialization' distant...etc...
>                subclasses:     nil
>                name:   #DateQualifier
>                classPool:      nil
>                sharedPools:    nil
>                environment:    a SystemDictionary(lots of globals)
>                category:       #'DocModel-Titles'
>
> MaFixedObjectBuffer>>createObjectUsing:
>        Receiver: a MaFixedObjectBuffer
>        oid : 16861039
>        classId : 378
>        objectInstSize : 2
>        commitNumber : ...etc...
>        Arguments and temporary variables:
>                aMaObjectSerializer:    a MaObjectSerializer
>                class:  DateQualifier
>                skeleton:       nil
>                indexedSize:    -1
>                sourceDefinition:       a MaClassDefinition DateQualifier
>        version = 1
>                inImageDefinition:      a MaClassDefinition DateQualifier
>        version = 1
>                eachOid:        nil
>                sourceIndex:    nil
>                targetIndex:    nil
>        Receiver's instance variables:
>                byteArray:      a ByteArray(242 159 4 0 176 14 62 0 0 0 62 0 0 19 115 0
> 99 81 1 0 0 ...etc...
>                startPos:       299
>
> MaObjectSerializer>>newSkeletonFor:fromProxy:
>        Receiver: a MaObjectSerializer
>        Arguments and temporary variables:
>                aMaObjectBuffer:        a MaFixedObjectBuffer
>        oid : 16861039
>        classId : 378
>        objectI...etc...
>                aMaMutatingProxy:       nil
>                skel:   nil
>        Receiver's instance variables:
>                oidManager:     a MagmaOidManager
>                classIdManager:         a MagmaClassIdManager
>                preMadeObjectBuffers:   an Array(a MaByteObjectBuffer
>        oid : 16149077336050
>        cla...etc...
>                graphBuffer:    a MaSerializedGraphBuffer  (6168 objects in 303090 bytes)
>                createProxyBlock:       [] in MagmaSession>>initializeSerializer {[:oid |
> MagmaMutati...etc...
>                traversalStrategy:      a MaObjectGraphTraversalStrategy
>                amBusy:         true
>                truncatedObjects:       a WeakIdentityKeyDictionary()
>                preferences:    a MaObjectSerializerPreferences
>                bpMapIndex:     1
>
>
> --- The full stack ---
> DateQualifier class(Object)>>error:
> DateQualifier class(Behavior)>>basicNew:
> MaFixedObjectBuffer>>createObjectUsing:
> MaObjectSerializer>>newSkeletonFor:fromProxy:
>  - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
> [] in MaObjectSerializer>>materializeGraphDo: {[skeletons   add:
> (Association key: (newObject := self newSkeletonFor: each ...]}
> [] in MaWeakValueDictionary(MaDictionary)>>maAt:ifPresent:ifAbsent:
> {[^ zeroArgBlock value]}
> MaWeakValueDictionary(MaDictionary)>>at:ifAbsent:
> MaWeakValueDictionary(MaDictionary)>>maAt:ifPresent:ifAbsent:
> [] in MagmaOidManager>>objectWithOid:ifFound:ifAbsent:
> {[(MaOidCalculator isOidForNewObject: anInteger)   ifTrue: [newObjects
>    ma...]}
> MaOidCalculator class>>objectWithOid:ifNone:
> MagmaOidManager>>objectWithOid:ifFound:ifAbsent:
> MaObjectSerializer>>objectWithOid:ifFound:ifAbsent:
> [] in MaObjectSerializer>>materializeGraphDo: {[:each |  object :=
> self     objectWithOid: each oid     ifFound: [:foundObj...]}
> [] in MaSerializedGraphBuffer>>buffersDo: {[:eachPosition |  buffer :=
> preMadeBuffers     at: (self bufferTypeAt: eachP...]}
> MaSerializedGraphBuffer>>bufferPositionsDo:
> MaSerializedGraphBuffer>>buffersDo:
> MaObjectSerializer>>materializeGraphDo:
> MaObjectSerializer>>materializeGraph:do:
> [] in MagmaSession>>materializeObject: {[serializer
> materializeGraph: aByteArray   do: [:eachObject :eachBuffer | ...]}
> ...etc...
>
> Any other suggestion?
>
> Hernán
>