[Upgrade] OpenSearch 2.0 to Lucene 9.0.0 release

[nknize]

• Replace SimpleFS with NioFS filesystem format
• Update analysis classpath
• Fix failing tests ([Meta] Lucene 9 Upgrade Punch List #2063)

[rootcfg]

Hi! Is this mean that OpenSearch will not be use elasticsearch-oss distribution in project?

[dblock]

Hi! Is this mean that OpenSearch will not be use elasticsearch-oss distribution in project?

Correct. OpenSearch uses OpenSearch-min, a fork, which is this repo, since 1.0.

[rootcfg]

Sorry for my English, but is it true that OpenSearch does not contain any elasticsearch-oss.rpm packages? In will contain it own package with its own name?

[dblock]

Sorry for my English, but is it true that OpenSearch does not contain any elasticsearch-oss.rpm packages? In will contain it own package with its own name?

Yes, this is correct.

[rootcfg]

Thank you!!!!

[saratvemulapalli]

@nknize I'm compiling a list of breaking changes for 2.0 and action items for plugins, clients to gear up for the work.
Do you happen to have a clear list of changes and what artifacts could be impacted ?

Ref: #2480

[nknize]

Do you happen to have a clear list of changes and what artifacts could be impacted ?

We are incrementally marking PRs as >breaking. You should be able to use that.

Closing this issue as complete