[ZODB-Dev] "Transaction blocked waiting for storage"

[Pedro Ferreira]

Hello all,
We occasionally get some messages like this in the logs:

2009-06-22T14:12:42 (30651/137.138.128.213:35787) Transaction blocked
waiting for storage. Clients waiting: 1.

But today we eventually got to:

2009-06-22T16:00:11 (30651/137.138.4.153:53416) Transaction blocked
waiting for storage. Clients waiting: 204.

Which lasted some minutes.  During that time, our system seemed to hang,
even if it was possible to connect to the db through the command line.
It eventually went back to normal by itself.
Any clue on what might have caused this?

Thanks in advance,

Pedro

-- 

José Pedro Ferreira
(Software Developer, Indico Project)

IT-UDS-AVC
CERN
Geneva, Switzerland

Office 513-R-042
Tel. +41 22 76 77159