Re: Statement.setQueryTimeout() with autoCommit=false - Mailing list pgsql-jdbc

That insert was against PostgreSQL server with synchronous replication and dead slave.

On Thursday, December 6, 2012 9:18:48 PM UTC+1, Dave Cramer wrote:
> Well my point was that that insert statement shouldn't last long enough to time out ?
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> Dave
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> Dave Cramer
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> dave.cramer(at)credativ(dot)ca
> http://www.credativ.ca
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> On Thu, Dec 6, 2012 at 1:36 PM, David Johnston <pol...@yahoo.com> wrote:
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> > -----Original Message-----
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> > From: pgsql-jd...@postgresql.org [mailto:pgsql-jdbc-
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> > ow...@postgresql.org] On Behalf Of dmp

>
> > Sent: Thursday, December 06, 2012 1:15 PM
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> > To: pgsql...@postgresql.org
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> > Cc: pavel....@loutka.cz

>
> > Subject: Re: [JDBC] Statement.setQueryTimeout() with autoCommit=false
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> >
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> > Exactly.
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> >
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> > According to the Java API:
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> >
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> > void setAutoCommit(boolean autoCommit) throws SQLException
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> >
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> >      Sets this connection's auto-commit mode to the given state. If a
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> > connection is in auto-commit mode, then all its SQL statements will be
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> > executed and committed as individual transactions. Otherwise, its SQL
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> > statements are grouped into transactions that are terminated by a call to
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> > either the method commit or the method rollback. By default, new
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> > connections are in auto-commit mode.
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> >
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> > By setting setAutoCommit(false) you are deciding to tell the database your
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> > code will determine when to commit the transaction. Thereby I would say
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> > overiding setQueryTimeout().
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> >
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> > danap.
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> Even within an manually administered transaction the setting of
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> "setQueryTimeout()" will (should?) act on the individual statements that
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> make up the transaction.  If any individual statement within the transaction
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> exceeds the limit that statement will fail and thus put the transaction into
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> a "failed" state where a rollback (possibly to savepoint) is required.  The
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> transaction itself does not constitute a statement and as such it can run
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> indefinitely long regardless of the presence of a statement timeout.
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>
>
> David J.
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> >
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> > Dave Cramer wrote:
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> > > Why would the query timeout at all ?
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> > >
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> > > The query timeout is for long running queries. If the query takes
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> > > longer than n seconds it will timeout.
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> > >
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> > > Dave
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> > >
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> > > Dave Cramer
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> > >
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> > > dave.cramer(at)credativ(dot)ca
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> > > http://www.credativ.ca
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> > >
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> > >
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> > >
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> > > On Thu, Dec 6, 2012 at 12:04 PM, <pavel....@loutka.cz

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> > > <mailto:pavel....@loutka.cz>> wrote:
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> > >
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> > >     Hi,
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> > >
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> > >     does setQueryTimeout work with autoCommit=false? When autoCommit
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> > is
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> > >     true, this code timeouts after 5 seconds (as expected):
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> > >
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> > > ~
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> >  > ~
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> >  > ~
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> > >     --
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> > >
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> > >     But if I set autoCommit to false, this code timeouts after 30
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> > >     seconds on read timeout:
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> > >
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> > >     --
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> > > ~
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> >  > ~
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> >  > ~
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> > >     --
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> > >
>
> > >     I'm confused what's setQueryTimeout() method for, why it doesn't
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> > >     work with manual transactions?
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> >
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> >
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> > --
>

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