How to set the capacity of the memory channel ?

[zuo ruochen <zu...@qingting.fm>]

Hello all,
    When i use the memory channel,i am confused with the capacity. In the other word, i don’t know the “capacity = 1000” is really represent for. In the user guider doc, it says that mean 1000 events, but in fact we always  take throughput into account, I really want to know is how many events can be processed if i set a capacity.
    Thank you.

Re: How to set the capacity of the memory channel ?

[zuo ruochen <zu...@qingting.fm>]

Thank you for your answer.
> On Nov 4, 2015, at 4:46 PM, Gonzalo Herreros <gh...@gmail.com> wrote:
> 
> The capacity is just the buffer size which is how long is the queue of events we can accept which are waiting to the processed by a sink.
> How many event can be processed (throughput) really depends on how fast the sink can handle them.
> In other words, if the sink is not able to keep up, eventually no matter how big the capacity, the client will have to slow down.
> 
> Now imagine in the previous case the sink was faster than the source, even with a tiny capacity it will have a higher throughput than the previous example.
> 
> Regards,
> Gonzalo
> 
> On 4 November 2015 at 08:29, zuo ruochen <zuoruochen@qingting.fm <ma...@qingting.fm>> wrote:
> Hello all,
>     When i use the memory channel,i am confused with the capacity. In the other word, i don’t know the “capacity = 1000” is really represent for. In the user guider doc, it says that mean 1000 events, but in fact we always  take throughput into account, I really want to know is how many events can be processed if i set a capacity.
>     Thank you.
> 

Re: How to set the capacity of the memory channel ?

[Gonzalo Herreros <gh...@gmail.com>]

The capacity is just the buffer size which is how long is the queue of
events we can accept which are waiting to the processed by a sink.
How many event can be processed (throughput) really depends on how fast the
sink can handle them.
In other words, if the sink is not able to keep up, eventually no matter
how big the capacity, the client will have to slow down.

Now imagine in the previous case the sink was faster than the source, even
with a tiny capacity it will have a higher throughput than the previous
example.

Regards,
Gonzalo

On 4 November 2015 at 08:29, zuo ruochen <zu...@qingting.fm> wrote:

> Hello all,
>     When i use the memory channel,i am confused with the capacity. In the
> other word, i don’t know the “capacity = 1000” is really represent for. In
> the user guider doc, it says that mean 1000 events, but in fact we always
>  take throughput into account, I really want to know is how many events
> can be processed if i set a capacity.
>     Thank you.
>