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Posted to users@tomcat.apache.org by Jonathan Yom-Tov <jo...@sysaid.com> on 2020/02/16 15:06:10 UTC
cloud cluster
hi,
What kind of configuration do people usually use when deploying on a public
cloud (e.g. AWS)? An auto-scaling cluster with session replication? A
auto-scaling cluster with all sessions stored in an external cache?
Jon.
Re: cloud cluster
Posted by Christopher Schultz <ch...@christopherschultz.net>.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
Martin,
On 2/19/20 07:22, Martin Grigorov wrote:
> Hi Jonathan,
>
> On Wed, Feb 19, 2020 at 12:55 PM Jonathan Yom-Tov <
> jonathan.yomtov@sysaid.com> wrote:
>
>> hi Chris,
>>
>> Do you have a link? I wasn't able to find one on Google, unless
>> you
mean
>> https://bitnami.com/stack/tomcat/helm.
>>
>
> I think Chris meant the **MembershipProvider classes at
>
https://github.com/apache/tomcat/tree/master/java/org/apache/catalina/tr
ibes/membership/cloud
Exactly. It's still in early stages, which is why it's not (yet)
documented in the Tomcat user's guide.
Rémy, what's your opinion on whether this would be appropriate to use
in production? At this point, YMMV, of course, but ... does it work
reasonably well?
- -chris
>> On Tue, Feb 18, 2020 at 5:44 PM Christopher Schultz <
>> chris@christopherschultz.net> wrote:
>>
> Jon,
>
> On 2/16/20 10:06, Jonathan Yom-Tov wrote:
>>>>> What kind of configuration do people usually use when
>>>>> deploying on a public cloud (e.g. AWS)? An auto-scaling
>>>>> cluster with session replication? A auto-scaling cluster
>>>>> with all sessions stored in an external cache?
>
> Rémy Mucharat has recently been developing Kubernetes-based
> cluster membership capabilities. So if you are using Kubernetes,
> you might want to look into using that.
>
> -chris
>>>
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>>
>> -- [image: SysAid Technologies] <
>>
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>>>
>> Jonathan Yom-Tov Senior Architect jonathan.yomtov@sysaid.com
>> Phone (IL): +972 (3) 533-3675 Ext. 932 [image: SysAid
>> Technologies] <
>>
https://www.sysaid.com/?utm_source=signature&utm_medium=email&utm_campai
gn=sysaid-logo-icon
>>>
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>> [image: SysAid on YouTube]
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>> [image: Banner] <https://www.sysaid.com/sig-link>
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>
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Re: cloud cluster
Posted by Martin Grigorov <mg...@apache.org>.
Hi Jonathan,
On Wed, Feb 19, 2020 at 12:55 PM Jonathan Yom-Tov <
jonathan.yomtov@sysaid.com> wrote:
> hi Chris,
>
> Do you have a link? I wasn't able to find one on Google, unless you mean
> https://bitnami.com/stack/tomcat/helm.
>
I think Chris meant the **MembershipProvider classes at
https://github.com/apache/tomcat/tree/master/java/org/apache/catalina/tribes/membership/cloud
>
> thanks,
> Jon.
>
>
>
> On Tue, Feb 18, 2020 at 5:44 PM Christopher Schultz <
> chris@christopherschultz.net> wrote:
>
> > -----BEGIN PGP SIGNED MESSAGE-----
> > Hash: SHA256
> >
> > Jon,
> >
> > On 2/16/20 10:06, Jonathan Yom-Tov wrote:
> > > What kind of configuration do people usually use when deploying on
> > > a public cloud (e.g. AWS)? An auto-scaling cluster with session
> > > replication? A auto-scaling cluster with all sessions stored in an
> > > external cache?
> >
> > Rémy Mucharat has recently been developing Kubernetes-based cluster
> > membership capabilities. So if you are using Kubernetes, you might
> > want to look into using that.
> >
> > - -chris
> > -----BEGIN PGP SIGNATURE-----
> > Comment: Using GnuPG with Thunderbird - https://www.enigmail.net/
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> > -----END PGP SIGNATURE-----
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> >
> >
>
> --
> [image: SysAid Technologies]
> <
> http://www.sysaid.com/?utm_source=signature&utm_medium=email&utm_campaign=sysaid-logo
> >
> Jonathan Yom-Tov
> Senior Architect
> jonathan.yomtov@sysaid.com
> Phone (IL): +972 (3) 533-3675 Ext. 932
> [image: SysAid Technologies]
> <
> https://www.sysaid.com/?utm_source=signature&utm_medium=email&utm_campaign=sysaid-logo-icon
> >
> [image: SysAid on Facebook] <https://www.facebook.com/SysAidIT>
> [image:
> SysAid on Twitter] <https://twitter.com/sysaid> [image: SysAid on
> Linked-in] <https://www.linkedin.com/company/sysaid-technologies-ltd>
> [image:
> SysAid on YouTube] <https://www.youtube.com/user/SysAidIT> [image:
> SysAid
> on Instagram] <https://www.instagram.com/sysaid_technologies/>
> [image: Banner] <https://www.sysaid.com/sig-link>
>
Re: cloud cluster
Posted by Jonathan Yom-Tov <jo...@sysaid.com>.
hi Chris,
Do you have a link? I wasn't able to find one on Google, unless you mean
https://bitnami.com/stack/tomcat/helm.
thanks,
Jon.
On Tue, Feb 18, 2020 at 5:44 PM Christopher Schultz <
chris@christopherschultz.net> wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA256
>
> Jon,
>
> On 2/16/20 10:06, Jonathan Yom-Tov wrote:
> > What kind of configuration do people usually use when deploying on
> > a public cloud (e.g. AWS)? An auto-scaling cluster with session
> > replication? A auto-scaling cluster with all sessions stored in an
> > external cache?
>
> Rémy Mucharat has recently been developing Kubernetes-based cluster
> membership capabilities. So if you are using Kubernetes, you might
> want to look into using that.
>
> - -chris
> -----BEGIN PGP SIGNATURE-----
> Comment: Using GnuPG with Thunderbird - https://www.enigmail.net/
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> -----END PGP SIGNATURE-----
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>
>
--
[image: SysAid Technologies]
<http://www.sysaid.com/?utm_source=signature&utm_medium=email&utm_campaign=sysaid-logo>
Jonathan Yom-Tov
Senior Architect
jonathan.yomtov@sysaid.com
Phone (IL): +972 (3) 533-3675 Ext. 932
[image: SysAid Technologies]
<https://www.sysaid.com/?utm_source=signature&utm_medium=email&utm_campaign=sysaid-logo-icon>
[image: SysAid on Facebook] <https://www.facebook.com/SysAidIT> [image:
SysAid on Twitter] <https://twitter.com/sysaid> [image: SysAid on
Linked-in] <https://www.linkedin.com/company/sysaid-technologies-ltd> [image:
SysAid on YouTube] <https://www.youtube.com/user/SysAidIT> [image: SysAid
on Instagram] <https://www.instagram.com/sysaid_technologies/>
[image: Banner] <https://www.sysaid.com/sig-link>
Re: cloud cluster
Posted by Christopher Schultz <ch...@christopherschultz.net>.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
Jon,
On 2/16/20 10:06, Jonathan Yom-Tov wrote:
> What kind of configuration do people usually use when deploying on
> a public cloud (e.g. AWS)? An auto-scaling cluster with session
> replication? A auto-scaling cluster with all sessions stored in an
> external cache?
Rémy Mucharat has recently been developing Kubernetes-based cluster
membership capabilities. So if you are using Kubernetes, you might
want to look into using that.
- -chris
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Re: cloud cluster
Posted by "M. Manna" <ma...@gmail.com>.
We are also using redis based option.
On Sun, 16 Feb 2020 at 17:32, Jonathan S. Fisher <ex...@gmail.com> wrote:
> We're doing the second: sessions stored in a Redis cluster with
> sticky sessions. This topology is simple and it scales pretty easily until
> it doesn't anymore [couple thousand simultaneous users]. You'll need to
> judiciously use your debugger and unix tools to find bottlenecks, as
> they're often hidden deep within the stack and present themselves in
> non-obvious ways. Important caveat: See the discussion from earlier this
> week on the mailing list about session replication and user authentication
> with the redisson session manager.
>
> On Sun, Feb 16, 2020 at 9:06 AM Jonathan Yom-Tov <
> jonathan.yomtov@sysaid.com>
> wrote:
>
> > hi,
> >
> > What kind of configuration do people usually use when deploying on a
> public
> > cloud (e.g. AWS)? An auto-scaling cluster with session replication? A
> > auto-scaling cluster with all sessions stored in an external cache?
> >
> > Jon.
> >
>
>
> --
> Jonathan | exabrial@gmail.com
> Pessimists, see a jar as half empty. Optimists, in contrast, see it as half
> full.
> Engineers, of course, understand the glass is twice as big as it needs to
> be.
>
Re: cloud cluster
Posted by "Jonathan S. Fisher" <ex...@gmail.com>.
We're doing the second: sessions stored in a Redis cluster with
sticky sessions. This topology is simple and it scales pretty easily until
it doesn't anymore [couple thousand simultaneous users]. You'll need to
judiciously use your debugger and unix tools to find bottlenecks, as
they're often hidden deep within the stack and present themselves in
non-obvious ways. Important caveat: See the discussion from earlier this
week on the mailing list about session replication and user authentication
with the redisson session manager.
On Sun, Feb 16, 2020 at 9:06 AM Jonathan Yom-Tov <jo...@sysaid.com>
wrote:
> hi,
>
> What kind of configuration do people usually use when deploying on a public
> cloud (e.g. AWS)? An auto-scaling cluster with session replication? A
> auto-scaling cluster with all sessions stored in an external cache?
>
> Jon.
>
--
Jonathan | exabrial@gmail.com
Pessimists, see a jar as half empty. Optimists, in contrast, see it as half
full.
Engineers, of course, understand the glass is twice as big as it needs to
be.