Re: [Exist-open] Running eXist-db Docker containers on AWS (Winona Salesky)

[Winona S. <wsa...@gm...>]

Hi Duncan,
Thanks for getting back to me, I missed this over the weekend, so sorry for
the delay in responding. I'm looping in Jonathan Woods on this email as he
has handled the AWS installations.
Here is my understanding of our set up:
1. The 7 instances run permanently
2.  There are no cross-dependencies between the containers.
Jonathan, perhaps you can answer the other questions having to do with
memory?

I have not yet tried running them on :latest, as I was hoping to hold out
until the next official release, perhaps I will give it a try and see if it
addresses any issues.

Thanks for your help,
-Winona



On Sat, Feb 27, 2021 at 7:47 AM Duncan Paterson <du...@ex...> wrote:

> Hi Winona,
>
> i m afraid the topology isn’t quite clear to me yet, from your
> description. Are all 7 instances supposed to run permanently, or on-demand?
> Are there cross-dependencies between the containers? Do they all live on
> the same network? What memory arguments are you using to run the
> containers? What are the max and min memory allocations per container?
> Are they running out of memory due to something that happens inside exist,
> or due to ECS memory reallocations?
> The logs you shared on slack actually look more like there is an IO issues
> with disk spaces, what do the logs say that make you think its memory
> related?
>
> Have you tried to switch to :latest as many bug fixes are in
> 5.3.0-SNAPSHOT to see if the problem persists there? Are you provisioning
> your own base images?
>
> Greetings
> Duncan
>
>
>
> We are moving our eXist-db v5.2 based applications to AWS using docker and
> are experiencing some performance issues.
>
> We have an ECS cluster running two t3a.xlarge which have 16gb, each. The
> ECS service/task are running on a spread deployment where it tries to load
> each task/container evenly between the nodes. We are running 7 eXist-db
> based docker images.
>
> The apps all start out running fine, but eventually run out of memory,
> which can cause an unclean shutdown. This seems to happen every few days.
>
> Any help debugging our setup would be greatly appreciated.
> Thank you,
> -Winona
>
> Ceterum censeo exist-db.org esse conriganda
>
>
>
>
>
>
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