[erlang-questions] Trouble starting mnesia on R14B02/3 node with a R14B01 node connected

Ferenc Holzhauser <>
Mon May 30 11:59:07 CEST 2011


Hi,

After updating Erlang from R14B01 to R14B02 (or B03, tried both) on one node
of a 2 node setup I had trouble starting mnesia.

Eshell V5.8.3  (abort with
^G)

(node2)1> mnesia:start().


=ERROR REPORT==== 26-May-2011::13:54:06
===
Mnesia('node2'): ** ERROR ** (core dumped to file:
"/home/me/backend/MnesiaCore.node2_1306_410846_451973")
 ** FATAL ** Failed to merge schema:
{aborted,

{function_clause,

[{mnesia_schema,cs2list,

[{cstruct,schema,set,[],
                                           ['node2',
                                            'node1'],

[],0,read_write,[],[],false,schema,

[table,cstruct],

[],[],

{{1300,896724,827143},
                                            'node1'},

{{4,0},
                                            {'node2',

{1302,780884,609311}}}}]},

{mnesia_schema,do_merge_schema,1},

{mnesia_tm,apply_fun,3},

{mnesia_tm,execute_transaction,5},

{mnesia_schema,schema_coordinator,

3}]}}



At the end I stopped both nodes, updated Erlang then I could start both of
them.

Is it a bug or did I do something wrong when trying to update them one by
one?

Thanks in advance,
Ferenc
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