Hello,

My current version is Openerp V8 and pgsql server 9.3.

I keep getting this error from the log file and it seems to be the cause of slow operation on my system (confirming delivery orders and checking availability,...)

2014-08-11 10:29:05 ICT ERROR:  deadlock detected
2014-08-11 10:29:05 ICT DETAIL:  Process 38270 waits for ShareLock on transaction 36549; blocked by process 23702.
        Process 23702 waits for ShareLock on transaction 36548; blocked by process 38270.
        Process 38270: update stock_quant set "qty"=1.0,write_uid=1,write_date=(now() at time zone 'UTC') where id IN (33840)
        Process 23702: update stock_quant set "qty"=1.0,write_uid=1,write_date=(now() at time zone 'UTC') where id IN (33703)
2014-08-11 10:29:05 ICT HINT:  See server log for query details.

2014-08-11 10:29:05 ICT STATEMENT:  update stock_quant set "qty"=1.0,write_uid=1,write_date=(now() at time zone 'UTC') where id IN (33840)

2014-08-11 10:29:27 ICT ERROR:  could not obtain lock on row in relation "res_users"
2014-08-11 10:29:27 ICT STATEMENT:  SELECT id FROM res_users WHERE id=1 FOR UPDATE NOWAIT

2014-08-11 10:29:25 ICT ERROR:  could not serialize access due to concurrent update
2014-08-11 10:29:25 ICT STATEMENT:  update stock_quant set "qty"=1.0,write_uid=1,write_date=(now() at time zone 'UTC') where id IN (33799)

Is this a coding issue or hardware / server configuration issue ?

Thank you.