Cassandra 4.0 dropping support for older distributions Centos 5, Debian 4, Ubuntu 7.10

[Mick Semb Wever <mc...@apache.org>]

CASSANDRA-16212 is about to be committed to trunk, upgrading JNA from 4.2.2
to 5.6.0.

This will mean that Cassandra 4.0 requires a glibc-2.7 or greater system.

Consequences of this will be the following distributions will no longer be
supported
 - Centos 5 (and earlier), (EOL was 2017-03-31),
 - Debian 4 Etch (and earlier), (EOL was 2010-02-15)
 - Ubuntu 7.10 Gutsy Gibbon (and earlier), (EOL was 2009-04-18)

Given the EOL dates to those distributions I don't see this being a
problem, but am raising it for visibility just in case. Speak up if there's
objections. It will be listed in NEWS.txt

regards,
Mick

Re: Cassandra 4.0 dropping support for older distributions Centos 5, Debian 4, Ubuntu 7.10

[Scott Andreas <sc...@paradoxica.net>]

Thanks for flagging this, Mick!

No concern from me as all EOL dates for these distributions have long passed and agreed that a NEWS entry is a good way to surface to users.

________________________________________
From: Mick Semb Wever <mc...@apache.org>
Sent: Friday, November 13, 2020 12:09 PM
To: dev@cassandra.apache.org
Subject: Re: Cassandra 4.0 dropping support for older distributions Centos 5, Debian 4, Ubuntu 7.10

Sounds ok to be, but one small question; if a user is still running older
> versions, can they downgrade JNA or would this break?  Basically, do our
> defaults/testing no longer support or would our source no longer be
> compatible?
>


The patch for CASSANDRA-16212 does not change the use of JNA, so a
downgrade of the jna jar file would be possible. But once the upgrade is in
place there's no way really for us to enforce that any subsequent ticket
doesn't take advantage of any new jna api.

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Re: Cassandra 4.0 dropping support for older distributions Centos 5, Debian 4, Ubuntu 7.10

[Mick Semb Wever <mc...@apache.org>]

Sounds ok to be, but one small question; if a user is still running older
> versions, can they downgrade JNA or would this break?  Basically, do our
> defaults/testing no longer support or would our source no longer be
> compatible?
>


The patch for CASSANDRA-16212 does not change the use of JNA, so a
downgrade of the jna jar file would be possible. But once the upgrade is in
place there's no way really for us to enforce that any subsequent ticket
doesn't take advantage of any new jna api.

Re: Cassandra 4.0 dropping support for older distributions Centos 5, Debian 4, Ubuntu 7.10

[David Capwell <dc...@gmail.com>]

Sounds ok to be, but one small question; if a user is still running older
versions, can they downgrade JNA or would this break?  Basically, do our
defaults/testing no longer support or would our source no longer be
compatible?

On Fri, Nov 13, 2020 at 12:11 AM Mick Semb Wever <mc...@apache.org> wrote:

> CASSANDRA-16212 is about to be committed to trunk, upgrading JNA from 4.2.2
> to 5.6.0.
>
> This will mean that Cassandra 4.0 requires a glibc-2.7 or greater system.
>
> Consequences of this will be the following distributions will no longer be
> supported
>  - Centos 5 (and earlier), (EOL was 2017-03-31),
>  - Debian 4 Etch (and earlier), (EOL was 2010-02-15)
>  - Ubuntu 7.10 Gutsy Gibbon (and earlier), (EOL was 2009-04-18)
>
> Given the EOL dates to those distributions I don't see this being a
> problem, but am raising it for visibility just in case. Speak up if there's
> objections. It will be listed in NEWS.txt
>
> regards,
> Mick
>