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From: Nikolai Tikhonov <ntikhonov@apache.org>
Date: Wed, 6 Dec 2017 17:19:27 +0300
Message-ID: <CAP3QaUE0FrCW8r5XEJ3ZTHD+zHeM0dsJMFG+usKKDvSM8o0GKA@mail.gmail.com>
Subject: Re: DataStreamer vs CacheStoreAdapter
To: user@ignite.apache.org, Lybrial@googlemail.com
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archived-at: Wed, 06 Dec 2017 14:19:31 -0000

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Hi,

If you plan to stream into data from single JVM then the better way use
only one instance of DataStreamer. Sure, if you're going to start different
10 JVMs than you'll use 10 instance of DataStreamer.
By default DataStreamer won't overwrite existing entries in a cache. You
can change this behaviour IgniteDataStreamer#allowOverwrite(true) via
method [1].

1. https://apacheignite.readme.io/docs#section-allow-overwrite

On Tue, Dec 5, 2017 at 8:32 PM, Lybrial <Lybrial@googlemail.com> wrote:

> Hi,
>
> I guess I did not understand what you mean for the DataStreamer. When I
> have
> a distributed
> database (or distributed files maybe) I want to be able to load all of
> these
> resources simultaneously
> into the same cache since there arent duplicates. the resources are
> distinct
> from each other. So
> in my example I would not have one DataStreamer per cache, I would have 10
> DataStreamers
> for one cache.
>
>
>
> --
> Sent from: http://apache-ignite-users.70518.x6.nabble.com/
>

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<div dir=3D"ltr"><div>Hi,</div><div><br></div>If you plan to stream into da=
ta from single JVM then the better way use only one instance of DataStreame=
r. Sure, if you&#39;re going to start different 10 JVMs than you&#39;ll use=
 10 instance of DataStreamer. <div>By default DataStreamer won&#39;t overwr=
ite existing entries in a cache. You can change this behaviour IgniteDataSt=
reamer#allowOverwrite(true) via method [1].=C2=A0<br></div><div><br></div><=
div>1. <a href=3D"https://apacheignite.readme.io/docs#section-allow-overwri=
te">https://apacheignite.readme.io/docs#section-allow-overwrite</a><br></di=
v></div><div class=3D"gmail_extra"><br><div class=3D"gmail_quote">On Tue, D=
ec 5, 2017 at 8:32 PM, Lybrial <span dir=3D"ltr">&lt;<a href=3D"mailto:Lybr=
ial@googlemail.com" target=3D"_blank">Lybrial@googlemail.com</a>&gt;</span>=
 wrote:<br><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;bor=
der-left:1px #ccc solid;padding-left:1ex">Hi,<br>
<br>
I guess I did not understand what you mean for the DataStreamer. When I hav=
e<br>
a distributed<br>
database (or distributed files maybe) I want to be able to load all of thes=
e<br>
resources simultaneously<br>
into the same cache since there arent duplicates. the resources are distinc=
t<br>
from each other. So<br>
in my example I would not have one DataStreamer per cache, I would have 10<=
br>
DataStreamers<br>
for one cache.<br>
<div class=3D"HOEnZb"><div class=3D"h5"><br>
<br>
<br>
--<br>
Sent from: <a href=3D"http://apache-ignite-users.70518.x6.nabble.com/" rel=
=3D"noreferrer" target=3D"_blank">http://apache-ignite-users.<wbr>70518.x6.=
nabble.com/</a><br>
</div></div></blockquote></div><br></div>

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