Nick Vatamaniuc comments

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                                            Nick Vatamaniuc

Enable wider control of PBKDF2

We have implemented PBKDF2 with SHA-256 with a cache mitigating the larger iteration counts in https://github.com/apache/couchdb/pull/4814 Closing as completed. This should be in the next 3.4 release.

Revs_diff returns a long list of deleted possible_ancestors

`winning_revs_only` is now part of the 3.3.0+ release. We also just released 3.3.3 that also has a few security and replication correctness fixes so upgrade if you get a chance....

{db}/_changes?filter=_selector lags towards almost the end of the response

Close as there was no response and the reproducer gist is missing.

wanted support of {error,enospc}

We have implemented optional countermeasures when the disks are getting full in https://github.com/apache/couchdb/pull/4681 It may still be worth adding periodic clear warnings to the logs for `{error,enospc}`. We now support...

wanted support of {error,enospc}

That seems interesting, yeah it could work. We'd specifically want to rate limit some messages, info or out of disk space ones but we may want make sure we don't...

Feature Request: manually pause or restart a specific replication job

As indicated above, Fair Share replicator feature could be used for something like this.

Test failures on s390x architecture

With the later OS variants and a new KVM based s390x CI instances all tests now pass the s390x is part of the regular full CI run.

Enhance step 3 of replication protocol "Find Common Ancestry" (GET /source/_local/replication-id) to return Database update_seq too in response header, if a dbseq=true request header is provided in the request.

At some point we might have another API or implement HTTP/2, HTTP/3, websockets, etc, but it probably won't be in the contexts of this issue. There are already issues on...

Consolidate various elixir makefile targets

We settled on `make elixir` by renaming `elixir-suite` -> `elixir`. ExUnit never took off and the target doesn't actually run any tests we should clean that up. But otherwise, we're...

Replication - url_parsing_failed/nx_domain on IPv6

Good find @rnewson That patch hasn't been released yet I think. @catgirlinspace would you be able to build Apache CouchDB `main` from source? If you can, then you can try...