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[Serpent Consulting Services <1085428@xxxxxxxxxxxxxxxxxx>]

Kettor,

We've also faced such issues, but most of the times it was due to calls
of write() colliding with the scheduler calls.

Is your scheduler running on the same model (project.task)?

We still feel server can manage this.

Thanks.

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https://bugs.launchpad.net/bugs/1085428

Title:
  Could not serialize access due to concurrent update

Status in OpenERP Server:
  New

Bug description:
  Hello,

  Since its 6.0 started.

  Please fabien(fp@xxxxxxxxxxx) improve this.

  Even just moving single canban card to other stage. it show below
  traceback.

  Please fix it soon.

  2012-12-01 15:31:03,048 2576 ERROR ? openerp.sql_db: bad query: update project_task set "sequence"=2,write_uid=1,write_date=(now() at time zone 'UTC') where id IN (3)
  Traceback (most recent call last):
    File "/home/bonjour/stable/server/openerp/sql_db.py", line 212, in execute
      res = self._obj.execute(query, params)
  TransactionRollbackError: could not serialize access due to concurrent update

  2012-12-01 15:31:03,053 2576 INFO ? werkzeug: 127.0.0.1 - - [01/Dec/2012 15:31:03] "POST /web/dataset/save HTTP/1.1" 200 -
  2012-12-01 15:31:03,080 2576 ERROR ? openerp.osv.osv: Uncaught exception
  Traceback (most recent call last):
    File "/home/bonjour/stable/server/openerp/osv/osv.py", line 121, in wrapper
      return f(self, dbname, *args, **kwargs)
    File "/home/bonjour/stable/server/openerp/osv/osv.py", line 176, in execute
      res = self.execute_cr(cr, uid, obj, method, *args, **kw)
    File "/home/bonjour/stable/server/openerp/osv/osv.py", line 164, in execute_cr
      return getattr(object, method)(cr, uid, *args, **kw)
    File "/home/bonjour/stable/addons/project/project.py", line 1051, in write
      result = super(task,self).write(cr, uid, ids, vals, context=context)
    File "/home/bonjour/stable/server/openerp/osv/orm.py", line 3927, in write
      'where id IN %s', upd1 + [sub_ids])
    File "/home/bonjour/stable/server/openerp/sql_db.py", line 152, in wrapper
      return f(self, *args, **kwargs)
    File "/home/bonjour/stable/server/openerp/sql_db.py", line 212, in execute
      res = self._obj.execute(query, params)
  TransactionRollbackError: could not serialize access due to concurrent update

  2012-12-01 15:31:03,112 2576 ERROR ? openerp.netsvc: could not
  serialize access due to concurrent update

  
  Thanks,
  Kettor

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