Sorry for the late reply.
Can we make our next release a major if we're making incompatible changes?


Donat


On Wed, Mar 30, 2022 at 11:06 PM Ralph Goers <ralph.go...@dslextreme.com> wrote:
>
> I’ve not gotten any replies to this so I am assuming everyone is ok with my 
> going with option 2.
>
> Ralph
>
> > On Mar 29, 2022, at 1:05 AM, Ralph Goers <ralph.go...@dslextreme.com> wrote:
> >
> > I think addressing Elasticsearch may be the last major hurdle before 1.10.0 
> > can be released.
> >
> > Flume currently uses Elasticsearch 0.90.1. 
> > https://www.elastic.co/support/eol#maintenance-tables shows that version 
> > 1.0.x reached end of life in 2015 so obviously the version Flume is using 
> > has been unsupported from even before that.
> >
> > The major goal of the 1.10.0 release has been to upgrade all the 
> > dependencies so that we aren’t using any that have known security 
> > vulnerabilities. From looking at 
> > https://cve.mitre.org/cgi-bin/cvekey.cgi?keyword=elasticsearch I am quite 
> > sure there is at least one CVE that applies to 0.90.1.
> >
> > Furthermore, this release is so old that I find it hard to imagine that 
> > anyone could still be using it.
> >
> > In addition, flume-ng-elasticsearch-sink is including 
> > org.elasticsearch:elasticsearch as an optional dependency. I suspect at the 
> > time that there was no Java client. We really should have a required 
> > dependency on the Java client and the Elasticsearch dependency should be a 
> > test dependency, not optional.
> >
> > I see 4 choices here for the 1.10.0 release:
> >
> > 1. Do nothing. This is not ideal since the component is practically useless 
> > as it exists and has security vulnerabilities.
> > 2. Drop the module in 1.10.0. This is obviously not backward compatible but 
> > any upgrade is going to break compatibility. We can defer re-implementing 
> > it until 2.0.
> > 3. Upgrade to a supported version of the Java client (which I believe has a 
> > license that is compatible with the ASF). Again, this is not backward 
> > compatible. It would need to use ElasticSearch for testing. The latest 
> > versions of ElasticSearch use a license which is Category X so we will need 
> > to include something in the NOTICE file and in the user’s guide warning 
> > about the ElasticSearch license if the component is used.
> > 4. Upgrade to the latest version of 
> > https://opensearch.org/docs/latest/clients/java/. This would use OpenSearch 
> > instead of Elasticsearch and AFAIK would be incompatible with Elasticsearch.
> >
> > Of these options, my recommendation is to go with option 2. Once we 
> > modularize things in 2.0 we can implement support for both Elasticsearch 
> > and OpenSearch. We could also support Solr if desired.
> >
> > Thoughts?
> >
> > Ralph
>

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