19 Mar
2022
19 Mar
'22
1:26 p.m.
Maybe we should include a “version” field in all DMQ messages, like we have a version for
database tables to avoid compatibility issues. If we get a DMQ with the wrong version
compared with the module running’s idea of current DMQ version for that module, we can
just ignore it.
/O
On 18 Mar 2022, at 16:56, Alex Balashov
<abalashov(a)evaristesys.com> wrote:
It sounds like this is a broad-based principle about DMQ compatibility that is
generalised beyond any specific module. Are you looking for an alternate set of rules that
specially apply to only one module and not to any other module, or are you looking for a
“de facto” exception that cannot be endorsed in principle?
—
Sent from mobile, with due apologies for brevity and errors.
On Mar 18, 2022, at 11:52 AM, Ben Kaufman
<bkaufman(a)bcmone.com> wrote:
Daniel,
In a recent thread you stated the following regarding DMQ compatibility between
versions:
“if you do dmq replication between kamailio systems running different major versions,
then it is likely to get memory leaks due to replication of data and most probably cannot
be fixed. This is because internal structures of modules (also dmq commands) can change,
practically what an instance does is not ensured to happen on the other instance. Just for
example, from my mind, htable got some changes during past releases, dmq also has
significant enhancements by getting support for more transport protocols.”
Is it possible to get a bit more clarification on this, particularly as it relates to
DMQ_USRLOC? I’m hoping to do rolling updates, but don’t want to end up in a situation
where I’ve caused myself more problems than I’ve solved.
Ben Kaufman
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