Hi Dinesh,
I am glad you asked.
1) A node just fails to start. It will print something like this while
booting and the whole Cassandra process exits.
Exception
(org.apache.cassandra.cql3.constraints.InvalidConstraintDefinitionException)
encountered during startup: Unrecognized constraint functio
Stefan - I understand the motivation behind this feature. I totally am for
introducing it. I just have a couple questions -
1. What is Cassandra's behavior when custom constraints are used but are
missing on disk? I'm imagining a situation where someone failed to include
the jar in their deploymen
I do not see any more activity on this thread so I will proceed. This does
not seem to be controversial as there is already precedent in place and
nobody vehemently objects.
Regards
On Mon, Aug 11, 2025 at 7:57 PM Mick wrote:
>
>
> >
> > I have 0 issues with ServiceLoader, but I think the bigge
>
> I have 0 issues with ServiceLoader, but I think the bigger question is “what
> is a public api”.
Let's also please be clear in separating what are our public SPIs and our
public APIs, as compatibility concerns are different for each. We typically
refer to both when mentioning API
We could also make it so that if we detect that a constraint is not
resolvable, we would just skip it. However I am not sure how safe that is
and what is worse - to fail to start a node when constraints are not
present, or to continue to act as if nothing happened while somebody could
put there inv
I do not think it is there just for testing. The original patch includes
this commit message:
Fix sstable formats configuration
- refactored sstable format configuration
- sstable formats are discovered via ServiceLoader
...
So the fact it is explicitly stated like this does not seem to be relat
I have 0 issues with ServiceLoader, but I think the bigger question is “what is
a public api”. In #1 I see the first comment is
> The `CustomConstraintsProvider` class will create custom constraints.
This implies to mean that this is a new public API that must be maintained, and
the current p
I want to ask what people think about ServiceLoader's (Java SPI) in the
context of Cassandra.
There is already a precedent with
ServiceLoader loader =
ServiceLoader.load(SSTableFormat.Factory.class,
DatabaseDescriptor.class.getClassLoader());
in DatabaseDescriptor.applySSTableFormats
I am askin
