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From: =?UTF-8?Q?Domingo_Su=C3=A1rez_Torres?= <domingo.suarez@gmail.com>
Date: Tue, 21 Jun 2016 15:54:08 +0000
Message-ID: <CAEQc=bApyqzYkxPtp_uvw2hK8yRiFUKNen84vYxqPTtPHRFUWg@mail.gmail.com>
Subject: Re: Groovy hot deploy in production
To: "users@groovy.apache.org" <users@groovy.apache.org>
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archived-at: Tue, 21 Jun 2016 15:54:25 -0000

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I always avoid hot deployments, I prefer to have multiple running JVMs and
a proxy or load balancer in front.


On Tue, Jun 21, 2016 at 9:18 AM Erwin M=C3=BCller <erwin.mueller@deventm.or=
g>
wrote:

> Why not have start and stop hooks for such stuff?
>
> Have an interface with onStart() and onStop() methods, and call them when
> you load and unload a class.
>
> If you really need modularity, use OSGi.
>
> Regards, Erwin.
>
> Sun Jun 19 2016 15:00:56 CEST from "Aplomb Chen" <aplomb.chen@gmail.com> =
Subject:
> Groovy hot deploy in production
>
> Hi Guys,
>
>
>
> Will you use groovy hot deploy in production environment? Is it reliable
> to do so?
>
>
>
> I am worried that it may have issue when you are doing below,
>
> 1, Defined a Array as class attribute, make it has 10000 objects, next
> time code hot deploy that the array is erased in code, then that must be =
an
> memory leak, right?
>
> 2, If you execute a periodic timertask in a groovy, next time code hot
> deployed, if the timetask is no longer needed from your code, but the
> started timertask will still be running, right?
>
>
>
> If we demands developers avoid using class attributes or starting any
> thread thing as a development rule, will hot deploy still be good for
> production?
>
>
>
> Aplomb
>
>
>
> Best regards
>
>
>
> --
> Erwin M=C3=BCller - erwin.mueller@deventm.org
> Software Entwickler - (+49) 01577-9505569
> Pgp - https://pgp.mit.edu/pks/lookup?op=3Dget&search=3D0x02E820911DD910FD
> Meine Seite - http://www.mueller-public.de/
> ANRI - http://www.anr-institute.com/
>

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<div dir=3D"ltr">I always avoid hot deployments, I prefer to have multiple =
running JVMs and a proxy or load balancer in front.<div><br></div><div><br>=
</div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr">On Tue, Jun 21,=
 2016 at 9:18 AM Erwin M=C3=BCller &lt;<a href=3D"mailto:erwin.mueller@deve=
ntm.org">erwin.mueller@deventm.org</a>&gt; wrote:<br></div><blockquote clas=
s=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;pad=
ding-left:1ex"><div>

<p>Why not have start and stop hooks for such stuff?</p>
<p>Have an interface with onStart() and onStop() methods, and call them whe=
n you load and unload a class.</p>
<p>If you really need modularity, use OSGi.</p>
<p>Regards, Erwin.</p>
<blockquote>
<div><span>Sun Jun 19 2016 15:00:56 CEST</span> <span>from &quot;Aplomb Che=
n&quot; &lt;<a href=3D"mailto:aplomb.chen@gmail.com" target=3D"_blank">aplo=
mb.chen@gmail.com</a>&gt; </span> <span>Subject: Groovy hot deploy in produ=
ction</span></div></blockquote></div><div><blockquote>
<div>
<div dir=3D"ltr">
<p><span>Hi Guys,=C2=A0</span></p>
<p>=C2=A0</p>
<p><span>Will you use groovy hot deploy in production environment? Is it re=
liable to do so?</span></p>
<p>=C2=A0</p>
<p><span>I am worried that it may have issue when you are doing below,=C2=
=A0</span></p>
<p><span>1, Defined a Array as class attribute, make it has 10000 objects, =
next time code hot deploy that the array is erased in code, then that must =
be an memory leak, right?</span></p>
<p><span>2, If you execute a periodic timertask in a groovy, next time code=
 hot deployed, if the timetask is no longer needed from your code, but the =
started timertask will still be running, right?</span></p>
<p>=C2=A0</p>
<p><span>If we demands developers avoid using class attributes or starting =
any thread thing as a development rule, will hot deploy still be good for p=
roduction?</span></p>
<p>=C2=A0</p>
<p><span>Aplomb</span></p>
<p>=C2=A0</p>
<p><span>Best regards</span></p>
</div>
<br><br></div>
</blockquote></div><div>
<p><br> </p>
<p>--=C2=A0<br>Erwin M=C3=BCller - <a href=3D"mailto:erwin.mueller@deventm.=
org" target=3D"_blank">erwin.mueller@deventm.org</a><br>Software Entwickler=
 - (+49) 01577-9505569<br>Pgp - <a href=3D"https://pgp.mit.edu/pks/lookup?o=
p=3Dget&amp;search=3D0x02E820911DD910FD" target=3D"_blank">https://pgp.mit.=
edu/pks/lookup?op=3Dget&amp;search=3D0x02E820911DD910FD</a><br>Meine Seite =
- <a href=3D"http://www.mueller-public.de/" target=3D"_blank">http://www.mu=
eller-public.de/</a><br>ANRI - <a href=3D"http://www.anr-institute.com/" ta=
rget=3D"_blank">http://www.anr-institute.com/</a></p>
</div></blockquote></div>

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