Thanx for the info - at least I am not feeling alone ;-) ... I will try to trigger the problem and catch all info. Than I will double check our code to see the sequence of closing/reconnecting. After that I will try to upgrade to 10.8.x and see if "it goes away".
Bernd On Tue, Feb 14, 2012 at 8:42 AM, Bartosz, Jan (NSN - PL/Wroclaw) <[email protected]> wrote: > 1) First of all - check if you - or somebody in your team does not close > connection explicitly;) - f.e.: there is some PMD rule about not closing > connection and someone could fix this PMD...;) - was a real case in our > project;) > > 2) In our project there was also problem with loosing connection and > reconnecting in derby 10.7.x - don't know how about the previous > versions, as we didn't use the DB so heavily. > Problem disappeared in latest i.e. 10.8 ver. - where some improvements > have been made regarding interruption handlings : > * Improved interrupt handling - Interrupting connection threads no > longer crashes the Derby engine. > http://old.nabble.com/-ANNOUNCE--Apache-Derby-10.8.1.2-released-to315235 > 46.html#a31523546 > > Hopefully helps!;) > > > .......................... > Regards / Pozdrowienia > Jan Bartosz > My contact info in Phonebook > Click to call me by using Softphone > -----Original Message----- > From: ext bruehlicke [mailto:[email protected]] > Sent: Tuesday, February 14, 2012 3:12 PM > To: Derby Discussion > Subject: Re: Derby Embedded losing connection ? > > Thanx for you interest. Its version 10.5.3.0 - I will collect more > info. No connection pooling by the way. Simple JDBC createConnection. > > Bernd > > On Tue, Feb 14, 2012 at 1:24 AM, Bartosz, Jan (NSN - PL/Wroclaw) > <[email protected]> wrote: >> Which derby version? Can you provide some stacktrace? >> >> .......................... >> Regards / Pozdrowienia >> Jan Bartosz >> My contact info in Phonebook >> Click to call me by using Softphone >> -----Original Message----- >> From: ext Bryan Pendleton [mailto:[email protected]] >> Sent: Tuesday, February 14, 2012 3:19 AM >> To: Derby Discussion >> Subject: Re: Derby Embedded losing connection ? >> >>> get reports (and also felt it our self) that our app simply is losing >>> its connection to the DB. >> >> What are the symptoms, exactly? >> >> That is, what is it that makes you think you are losing your > connection? >> >> One thing that occurs to me is a bit of a long-shot: are you using a >> connection pooling framework of some sort? If so, is it possible that >> the connection pooling framework is making a mistake and closing a >> connection inappropriately? >> >> thanks, >> >> bryan >>
