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From: Vivek <viveksuvarna@yahoo.co.in>
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Date: Wed, 26 Jul 2017 16:36:44 +0800
Subject: Re: Multiple Livy instances and load balancing
Message-Id: <06D022FF-6511-422C-BCD5-2F5EFA9EF5FD@yahoo.co.in>
References: <89AF9504-4607-4B41-BA03-CF0BD9635653@yahoo.co.in> <CANvfmP_XU0t4y=Q3BS29YEG5AXbQYo-ZAVnd6q8g+8_JB41_Mw@mail.gmail.com>
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To: user@livy.incubator.apache.org
archived-at: Wed, 26 Jul 2017 08:37:05 -0000


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Ok.so if I start multiple instances how will I know which instance to send t=
he request to?
And multiple instances would then be only controlled by the port id?=20


Sent from my iPhone

> On 26 Jul 2017, at 4:04 PM, Saisai Shao <sai.sai.shao@gmail.com> wrote:
>=20
> Current Livy doesn't support the things you mentioned here. You can start m=
ultiple Livy in the cluster, but each LivyServer is a standalone service doe=
sn't aware the existence of others.
>=20
>> On Wed, Jul 26, 2017 at 10:27 AM, Vivek <viveksuvarna@yahoo.co.in> wrote:=

>> Hi,
>>=20
>> We are now considering moving into a uat environment using Livy at my com=
pany.
>>=20
>> Has anyone implemented multiple Livy instances on a single cluster with l=
oad balancing?
>>=20
>> A few questions.
>> 1. Is this feature available in the 0.3 release?
>> 2. How would I name/number the multiple instances I bring up?
>> 3. How does one load balance and send requests across the multiple instan=
ces?
>> 4. Does Livy have a heartbeat mechanism to understand which or how many i=
nstances are up?
>>=20
>> Any answers would be appreciated.
>>=20
>> Regards
>> Vivek
>>=20
>>=20
>> Sent from my iPhone
>=20

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<html><head><meta http-equiv=3D"content-type" content=3D"text/html; charset=3D=
utf-8"></head><body dir=3D"auto"><div>Ok.so if I start multiple instances ho=
w will I know which instance to send the request to?</div><div id=3D"AppleMa=
ilSignature">And multiple instances would then be only controlled by the por=
t id?&nbsp;</div><div id=3D"AppleMailSignature"><br></div><div id=3D"AppleMa=
ilSignature"><br>Sent from my iPhone</div><div><br>On 26 Jul 2017, at 4:04 P=
M, Saisai Shao &lt;<a href=3D"mailto:sai.sai.shao@gmail.com">sai.sai.shao@gm=
ail.com</a>&gt; wrote:<br><br></div><blockquote type=3D"cite"><div><div dir=3D=
"ltr">Current Livy doesn't support the things you mentioned here. You can st=
art multiple Livy in the cluster, but each LivyServer is a standalone servic=
e doesn't aware the existence of others.</div><div class=3D"gmail_extra"><br=
><div class=3D"gmail_quote">On Wed, Jul 26, 2017 at 10:27 AM, Vivek <span di=
r=3D"ltr">&lt;<a href=3D"mailto:viveksuvarna@yahoo.co.in" target=3D"_blank">=
viveksuvarna@yahoo.co.in</a>&gt;</span> wrote:<br><blockquote class=3D"gmail=
_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1=
ex">Hi,<br>
<br>
We are now considering moving into a uat environment using Livy at my compan=
y.<br>
<br>
Has anyone implemented multiple Livy instances on a single cluster with load=
 balancing?<br>
<br>
A few questions.<br>
1. Is this feature available in the 0.3 release?<br>
2. How would I name/number the multiple instances I bring up?<br>
3. How does one load balance and send requests across the multiple instances=
?<br>
4. Does Livy have a heartbeat mechanism to understand which or how many inst=
ances are up?<br>
<br>
Any answers would be appreciated.<br>
<br>
Regards<br>
Vivek<br>
<br>
<br>
Sent from my iPhone<br>
</blockquote></div><br></div>
</div></blockquote></body></html>=

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