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From 王国栋 <wangg...@gmail.com>
Subject Re: ASyncProducer loss more messages than SyncProducer when broker crashes.
Date Tue, 05 Feb 2013 06:30:23 GMT
We kill the broker on purpose, since we are doing some fail over tests. If
the broker is hard killed, will the async-producer lose message for 6
seconds?

Thanks.

Guodong


On Tue, Feb 5, 2013 at 2:19 PM, Jun Rao <junrao@gmail.com> wrote:

> Is the broker shut down cleanly? If so, the producer should get a ZK
> notification immediately. If the broker is hard killed, the ZK notification
> won't arrive at the producer until zk session timeout (default is 6 secs).
>
> Thanks,
>
> Jun
>
> On Mon, Feb 4, 2013 at 7:11 PM, 王国栋 <wanggd04@gmail.com> wrote:
>
> > Hi Jun
> >
> > We are using zookeeper. And the async-producer loses  messages in 'X'
> > seconds. Here, X is between 4 and 6. It seems that X is comparable with
> > zookeeper session timeout.
> >
> > I am wondering the behavior of async-producer when socket is broken, but
> > the broker is still visible for zookeeper client.
> >
> >
> > On Tue, Feb 5, 2013 at 12:39 AM, Jun Rao <junrao@gmail.com> wrote:
> >
> > > Currently, there is no callback to report socket failure in the async
> > > producer. However, async producer should be able to detect socket
> failure
> > > and reconnect to another broker. Are you using a vip or Zookeeper in
> the
> > > producer for load balancing?
> > >
> > > Thanks,
> > >
> > > Jun
> > >
> > > On Sun, Feb 3, 2013 at 10:00 PM, 王国栋 <wanggd04@gmail.com> wrote:
> > >
> > > > Hi,
> > > >
> > > > we are doing some fail over test on Kafka0.7.2. We kill one of the
> > > brokers
> > > > on purpose. But we find that the async-producer loss more messages.
> We
> > do
> > > > catch exceptions for send api. But it seems that the async-producer
> > > doesn't
> > > > throw any exceptions when broker is done.
> > > >
> > > > We change the producer to sync-producer, and got the exceptions as
> soon
> > > as
> > > > the broker is down.
> > > >
> > > > So I am wondering if I can get the socket status connected to the
> > broker.
> > > > Does some callbacks can do this?
> > > >
> > > > Thanks.
> > > > --
> > > > Guodong Wang
> > > > 王国栋
> > > >
> > >
> >
> >
> >
> > --
> > Guodong Wang
> > 王国栋
> >
>



-- 
Guodong Wang
王国栋

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