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Kafka >> mail # user >> 0.8 Durability Question


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Re: 0.8 Durability Question
Thanks!
On Thu, Jun 13, 2013 at 8:33 AM, Neha Narkhede <[EMAIL PROTECTED]>wrote:

> No. It only means that messages are written to all replicas in memory. Data
> is flushed to disk asynchronously.
>
> Thanks,
> Neha
> On Jun 13, 2013 3:29 AM, "Jonathan Hodges" <[EMAIL PROTECTED]> wrote:
>
> > Looking at Jun’s ApacheCon slides (
> > http://www.slideshare.net/junrao/kafka-replication-apachecon2013) slide
> 21
> > titled, ‘Data Flow in Replication’ there are three possible durability
> > configurations which tradeoff latency for greater persistence guarantees.
> >
> > The third row is the ‘no data loss’ configuration option where the
> producer
> > only receives an ack from the broker once the message(s) are committed by
> > the leader and peers.  Does this commit also mean the message(s) are
> > flushed to disk?  I know there is a separate configuration setting,
> > log.flush.interval.messages, but I thought in sync mode the producer
> > doesn’t receive an ack until message(s) are committed and flushed to
> disk.
> >  Please correct me if my understanding is incorrect.
> >
> > Thanks,
> > Jonathan
> >
>