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Re: Feature thought: idle in transaction timeout

From: "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com>
To: Russell Smith <mr-russ(at)pws(dot)com(dot)au>
Cc: PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Feature thought: idle in transaction timeout
Date: 2007-03-31 15:46:03
Message-ID: 460E823B.9070303@commandprompt.com (view raw or flat)
Thread:
Lists: pgsql-hackers
Russell Smith wrote:
> Joshua D. Drake wrote:
>> Hello,
>>
>> I ran into an interesting problem with a customer today. They are 
>> running Jabber XCP (not the one we use). Unfortunately, the product 
>> has a bug that causes it to leave connections persistent in a 
>> transaction state. This is what it does:
>>
>> BEGIN; SELECT 1;
>>
>> Basically it is verifying that the connection is live. However, it 
>> never calls commit. So what happens? We can't vacuum ;).
>>
>> Anyway, my thought is, we know when a transaction is idle, why not 
>> have an idle timeout where we will explicitly close the connection or 
>> rollback or something? User configurable of course.
> I agree with this, it reduces the long running transaction problem a 
> little where the user forgot to commit/rollback their session.  I may be 
> worth having a transaction_timeout as well, and setting it to link a few 
> hours by default.  That way you can't have really long running 
> transactions unless you specifically set that.

We would certainly need to be able to disable on the fly too just with 
SET as well.

Joshua D. Drake

>>
>> Sincerely,
>>
>> Joshua D. Drake
>>
>>
>>
> 
> 
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