Comment 3 for bug 1013223

I don't believe this is a duplicate bug. the res_users lock error, is ignored for the most part, even though it is logged. if you look at res_users.py, there is a workaround for the login portion there.

the problem is that the correct number of partners is not created. for example use the JMeter test and run 10 users (threads) with one look - 10 users creating 1 partner all at the same time. In my test environment only 8 partners are created.

An example error is :

<?xml version='1.0'?>
<methodResponse>
<fault>
<value><struct>
<member>
<name>faultCode</name>
<value><string>could not serialize access due to concurrent update
CONTEXT: SQL statement "SELECT 1 FROM ONLY "public"."res_users" x WHERE "id" OPERATOR(pg_catalog.=) $1 FOR SHARE OF x"
</string></value>
</member>
<member>
<name>faultString</name>
<value><string>Traceback (most recent call last):
  File "/usr/lib/pymodules/python2.7/openerp/wsgi/core.py", line 79, in xmlrpc_return
    result = openerp.netsvc.dispatch_rpc(service, method, params)
  File "/usr/lib/pymodules/python2.7/openerp/netsvc.py", line 360, in dispatch_rpc
    result = ExportService.getService(service_name).dispatch(method, params)
  File "/usr/lib/pymodules/python2.7/openerp/service/web_services.py", line 572, in dispatch
    res = fn(db, uid, *params)
  File "/usr/lib/pymodules/python2.7/openerp/osv/osv.py", line 121, in wrapper
    return f(self, dbname, *args, **kwargs)
  File "/usr/lib/pymodules/python2.7/openerp/osv/osv.py", line 176, in execute
    res = self.execute_cr(cr, uid, obj, method, *args, **kw)
  File "/usr/lib/pymodules/python2.7/openerp/osv/osv.py", line 164, in execute_cr
    return getattr(object, method)(cr, uid, *args, **kw)
  File "/usr/lib/pymodules/python2.7/openerp/osv/orm.py", line 4154, in create
    cr.execute('insert into "'+self._table+'" (id'+upd0+") values ("+str(id_new)+upd1+')', tuple(upd2))
  File "/usr/lib/pymodules/python2.7/openerp/sql_db.py", line 152, in wrapper
    return f(self, *args, **kwargs)
  File "/usr/lib/pymodules/python2.7/openerp/sql_db.py", line 212, in execute
    res = self._obj.execute(query, params)
TransactionRollbackError: could not serialize access due to concurrent update
CONTEXT: SQL statement "SELECT 1 FROM ONLY "public"."res_users" x WHERE "id" OPERATOR(pg_catalog.=) $1 FOR SHARE OF x"

</string></value>
</member>
</struct></value>
</fault>
</methodResponse>