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From:Andrés Tello Date:May 11 2012 7:06am
Subject:Deadlock due lockwait. How can I tell mysql to wait longer?
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Ok... I have one of those pesky error, in an application not handling
deadlocks or lockwaits.

The database object can't be modified to support deadlock/lockwatis...
I can only change database parameteres

Database info: Server version: 5.5.22-log Source distribution


from show engine innodb status;
{abstract}
*** (1) TRANSACTION:
TRANSACTION 5F7EA9A, ACTIVE 33 sec starting index read
mysql tables in use 1, locked 1
LOCK WAIT 13 lock struct(s), heap size 3112, 27 row lock(s)
update `account` set `balance`= 0.00 + '-6.07' where accountid='3235296'
*** (1) WAITING FOR THIS LOCK TO BE GRANTED:
RECORD LOCKS space id 5806 page no 69100 n bits 176 index `PRIMARY` of
table `f_database`.`account` trx id 5F7EA9A lock_mode X locks rec but not
gap waiting

*** (2) TRANSACTION:
TRANSACTION 5F7A398, ACTIVE 132 sec starting index read, thread declared
inside InnoDB 500
mysql tables in use 1, locked 1
14 lock struct(s), heap size 3112, 27 row lock(s)
MySQL thread id 92442, OS thread handle 0x7f903b949710, query id 32378480
90.0.0.51 mario Updating
update `account` set `balance`= 0.00 + '-1.37' where accountid='3235296'

*** (2) HOLDS THE LOCK(S):
RECORD LOCKS space id 5806 page no 69100 n bits 176 index `PRIMARY` of
table `f_database`.`account` trx id 5F7A398 lock mode S locks rec but not
gap

*** (2) WAITING FOR THIS LOCK TO BE GRANTED:
RECORD LOCKS space id 5806 page no 69100 n bits 176 index `PRIMARY` of
table `f_database`.`account` trx id 5F7A398 lock_mode X locks rec but not
gap waiting

*** WE ROLL BACK TRANSACTION (1)

The issue is that I had a lock for over 132 seconds and the other was
waiting for 33 seconds, so I get a lockwait.

accountid is locked by a
select balance from account where accountid='3235296' lock in shared mode
How can I tell mysql to wait longer? I know the process which is doing the
deadlock, is a long balance process... I know that it takes time, sometives
over 15 minutes, but they always resolve...

How Can I tell mysql to wait for the lock as needed? like for over 12
minutes?

TIA

Thread
Deadlock due lockwait. How can I tell mysql to wait longer?Andrés Tello11 May
  • Re: Deadlock due lockwait. How can I tell mysql to wait longer?Baron Schwartz11 May
    • Re: Deadlock due lockwait. How can I tell mysql to wait longer?Andrés Tello11 May
      • Re: Deadlock due lockwait. How can I tell mysql to wait longer?Claudio Nanni11 May
        • Re: Deadlock due lockwait. How can I tell mysql to wait longer?Andrés Tello11 May
          • Re: Deadlock due lockwait. How can I tell mysql to wait longer?Claudio Nanni11 May
            • Re: Deadlock due lockwait. How can I tell mysql to wait longer?Andrés Tello11 May
      • Re: Deadlock due lockwait. How can I tell mysql to wait longer?Baron Schwartz11 May
        • Re: Deadlock due lockwait. How can I tell mysql to wait longer?Andrés Tello11 May
        • Re: Deadlock due lockwait. How can I tell mysql to wait longer?Johan De Meersman14 May
          • RE: Deadlock due lockwait. How can I tell mysql to wait longer?David Lerer14 May
Re: Deadlock due lockwait. How can I tell mysql to wait longer?Baron Schwartz14 May
  • Re: Deadlock due lockwait. How can I tell mysql to wait longer?Claudio Nanni14 May
    • Re: Deadlock due lockwait. How can I tell mysql to wait longer?Andrés Tello14 May
      • Re: Deadlock due lockwait. How can I tell mysql to wait longer?Claudio Nanni14 May
        • RE: Deadlock due lockwait. How can I tell mysql to wait longer?Rick James14 May