[mdr-users] Re: Loosing last transaction results in case of crash

Note that jdbcstorage implementation actually commits every transaction
for real.  So if you use it together with a DBMS with transaction
support, you don't have to worry about losing any transactions.

JVS

> Subject:
> Re: [mdr-users] Loosing last transaction results in case of crash
> From:
> Martin Matula <[email protected]>
> Date:
> Mon, 24 Oct 2005 15:36:18 +0200
> To:
> [email protected]
> 
> To:
> [email protected]
> 
> Message-ID:
> <[email protected]>
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> 1.0
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> 
> Hi Olivier,
> this is normal - as designed. For the performance reasons the
> transactions are cached in memory and committed to disk only when the
> cache threshold is reached. So, a few transaction performed just before
> the crash of the application may be lost but you are guaranteed that the
> transaction will be lost as a whole (not just partially), so the state
> should at any case be consistent.
> Martin
> 
> Olivier RICHAUD wrote:
> 
>> Hi all,
>>
>> Has anybody already experienced loosing the results of the last
>> transaction in case the JVM crashes. I mean, alltough the last
>> read/write transaction has been committed, if the JVM crashes or is
>> stopped abruptly, changes are lost. For example, although an object has
>> correctly been created and the call to endTrand performed, if the JVM
>> unexpectedly stops, I would loose that creation.
>>
>> Regards.
>>
>> Olivier.
>>
>>  
>>
> 
> 
> ------------------------------------------------------------------------
> 
> Subject:
> RE : [mdr-users] Loosing last transaction results in case of crash
> From:
> "Olivier RICHAUD" <[email protected]>
> Date:
> Tue, 25 Oct 2005 21:38:57 +0200
> To:
> <[email protected]>
> 
> To:
> <[email protected]>
> 
> Message-ID:
> <013601c5d99b$c2bb72f0$0a64a8c0@lauris>
> MIME-Version:
> 1.0
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> text/plain; charset="iso-8859-1"
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> quoted-printable
> 
> 
> Thanks.
> 
> Simple question: How can force the system so that it flushes all non
> written transactions to the disk?
> 
> Is this per chance possible to configure this?
> 
> Olivier.
> 
> -----Message d'origine-----
> De : Martin Matula [mailto:[email protected]] 
> Envoyé : lundi 24 octobre 2005 15:36
> À : [email protected]
> Objet : Re: [mdr-users] Loosing last transaction results in case of
> crash
> 
> 
> Hi Olivier,
> this is normal - as designed. For the performance reasons the 
> transactions are cached in memory and committed to disk only when the 
> cache threshold is reached. So, a few transaction performed just before 
> the crash of the application may be lost but you are guaranteed that the
> 
> transaction will be lost as a whole (not just partially), so the state 
> should at any case be consistent.
> Martin
> 
> Olivier RICHAUD wrote:
> 
> 
>>Hi all,
>>
>>Has anybody already experienced loosing the results of the last 
>>transaction in case the JVM crashes. I mean, alltough the last 
>>read/write transaction has been committed, if the JVM crashes or is 
>>stopped abruptly, changes are lost. For example, although an object has
> 
> 
>>correctly been created and the call to endTrand performed, if the JVM 
>>unexpectedly stops, I would loose that creation.
>>
>>Regards.
>>
>>Olivier.
>>
>> 
>>
> 
> 
>