Yeah, caught me very much by surprise because I ran last year with no
problems. That must have gotten reset somewhere along the way form
last year to this year.
But you're right about frontbase. My site got hammered (actually, my
lack of optimally prefetching caused most of the hammering) but
frontbase never did crash, deadlock or anything like that. It slowed
down considerably at peak times before I optimized my fetches, but it
kept on chugging a long and never dropped a thing.
Jeff
On Mar 23, 2010, at 11:28 AM, Gaastra Dennis - WO Lists wrote:
Hi Jeff,
This was a funny exception back in 2007. Adjusting the connection
dictionary like Chuck mentioned fixed the problem back them; and it
has never re-occured since then. We have been using FrontBase for
the largest professional drivings schools in Canada since then
without any problems. Viva FrontBase!!!
With Kind Regards,
Dennis Gaastra,
Chief Technology Officer,
WEBAPPZ® Systems, Inc.
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On 2010-03-22, at 10:48 PM, Jeff Schmitz wrote:
I was seeing the same thing as below and it was very repeatable on
both my development and deployment machines. I made the suggested
change, and the error went away on my development machine. However
when I install the new build on my deployment machine, I still get
the error (very repeatably). Is there something extra I need to do
to make sure that kind of change gets installed when you build and
deploy your project? As a note, my EOModel resides in a framework
project that I build and install separately from my main project.
And yes, I have installed both parts and still am seeing the error.
Thanks,
Jeff
On Jan 10, 2007, at 4:39 PM, Chuck Hill wrote:
On Jan 10, 2007, at 2:33 PM, Gaastra Dennis - WO Lists wrote:
Dear colleagues,
This exception just appeared at random during deployment. Yes,
there are multiple WO application instances and multiple sessions
per instance, but this never has caused a problem before. We were
just trying to insert an object into the database. Any tips,
pointers? Frontbase? WO?
You. :-) Add /isolation=read_committed/locking=optimistic to
your URL so that it looks like this:
JDBCUrl = "jdbc:FrontBase://localhost/GVCSiteMaker/
isolation=read_committed/locking=optimistic";
Chuck
EXCEPTION:
com.webobjects.eoaccess.EOGeneralAdaptorException:
EvaluateExpression failed:
<com.webobjects.jdbcadaptor.FrontbasePlugIn$FrontbaseExpression:
"INSERT INTO "Client"("address_PostalZip", "phone_Fax",
"modify_user_id", "create_user_id", "date_Registration",
"notes_textblob_id", "birthDate", "date_LastPayment",
"client_id", "isActive", "sourceInformation", "address_Line1",
"address_Line2", "name_Last", "salesPerson_employee_id",
"address_ProvinceState", "branch_id", "name_First",
"date_RTEligible", "modify_date", "currentBalance",
"address_Additional", "address_City3C", "dlClass_id",
"address_Country", "address_City", "division_id", "create_date",
"phone_Home", "dlNumber", "date_LastBooking", "phone_Cell",
"highSchool", "phone_Additional", "office_id", "eMail",
"programCourse") VALUES ('A1Z-5Z1', NULL, NULL, 'rhonda',
TIMESTAMP '2007-01-10 00:00:00.000', 1000633, TIMESTAMP
'1951-07-29 00:00:00.000', NULL, 1000553, 1, NULL, '87-Spear Rd',
NULL, 'Nesty', 1000018, 'BC', 100000
1, 'Mario', NULL, NULL, NULL, NULL, 'Chi', 1000001, 'Canada',
'Chillilove', 1000002, TIMESTAMP '2007-01-10 11:56:10.003',
'604-793-8439', '6892720', NULL, NULL, NULL, NULL, 1000001, NULL,
'CL-3 ABC($900.00)')">:
Next exception:SQL State:00 subclass = " -- error code:
380 -- msg: Exception condition 380. Pessimistic locking:
multiple transaction conflict detected (deadlock).
Next exception:SQL State:40 subclass = 00 -- error code:
363 -- msg: Exception condition 363. Transaction rollback.
With Kind Regards,
Dennis Gaastra, M.B.A.[sfu.ca], B.Sc.[ubc.ca]
Chief Technology Officer,
WEBAPPZ Systems, Inc.
HQ: (+1) 604.921.1333
Fax: (+1) 604.921.4313
Cell: (+1) 604.787.2532
Web: www.webappz.com & www.1tracker.com
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