janl commented on a change in pull request #682:
URL:
https://github.com/apache/couchdb-documentation/pull/682#discussion_r708054569
##########
File path: src/whatsnew/3.2.rst
##########
@@ -57,4 +113,140 @@ Features and Enhancements
which can include various characters previously not allowed to be included
in the url info part of endpoint urls.
+* :ghissue:`3506`, :ghissue:`3416`, :ghissue:`3377`: CouchDB now provides a
Prometheus
+ compatible endpoint at ``GET /_node/{node-name}/_prometheus``. A
configuration option
+ allows for scraping via a different port (17986) that does not require
authentication,
+ if desired. More information is available at the :ref:`Prometheus API
endpoint
+ <api/server/prometheus>` summary.
+
+* :ghissue:`3697`, :issue:`883` (JIRA): As an opt-in policy, CouchDB can now
stop
+ encoding the plus sign ``+`` in non-query parts of URLs, in compliance with
the
+ original CouchDB standards. The opt-in is via the ``[chttpd]
decode_plus_to_space =
+ true`` setting. *In CouchDB 4.x, this is an opt-out policy.*
Review comment:
```suggestion
true`` setting. *In CouchDB 4.x, this is going to be an opt-out policy.*
```
##########
File path: src/whatsnew/3.2.rst
##########
@@ -57,4 +113,140 @@ Features and Enhancements
which can include various characters previously not allowed to be included
in the url info part of endpoint urls.
+* :ghissue:`3506`, :ghissue:`3416`, :ghissue:`3377`: CouchDB now provides a
Prometheus
+ compatible endpoint at ``GET /_node/{node-name}/_prometheus``. A
configuration option
+ allows for scraping via a different port (17986) that does not require
authentication,
+ if desired. More information is available at the :ref:`Prometheus API
endpoint
+ <api/server/prometheus>` summary.
+
+* :ghissue:`3697`, :issue:`883` (JIRA): As an opt-in policy, CouchDB can now
stop
+ encoding the plus sign ``+`` in non-query parts of URLs, in compliance with
the
+ original CouchDB standards. The opt-in is via the ``[chttpd]
decode_plus_to_space =
+ true`` setting. *In CouchDB 4.x, this is an opt-out policy.*
+
+* :ghissue:`3724`: CouchDB now has new CSP settings for attachments and
show/list
+ functions. This deprecates the old ``[csp] enable`` and ``[csp]
header_value``
+ settings, replacing them with the new ``[csp] utils_enable`` and ``[csp]
+ utils_header_value`` settings respectively. In addition, new settings for
+ ``attachments_enable``, ``attachments_header_value``, ``showlist_enable`` and
+ ``showlist_header_value`` now are avialable. Documentation is in the
``default.ini``
+ file.
+
+* :ghissue:`3734`, :ghissue:`3733`: Users with databases that have low ``q``
and ``n``
+ values would often receive the ``No DB shards could be opened`` error when
the cluster
+ is overloaded, due to a hard-coded 100ms timeout. CouchDB now calculates a
more
+ reasonable timeout, based on the number of shards and the overall maximum
fabric
+ request timeout limit, using a geometric series.
+
+Performance
+-----------
+
+* :ghissue:`3337`: Developer nodes now start faster when using the ``dev/run``
script.
+
+* :ghissue:`3366`: The monolithinc ``couch_server`` process has been sharded
for
+ performance considerations. Previously, as a single ``gen_server``, the
process would
+ have a finite throughput that, in busy clusters, is easily breached --
causing a
+ sizeable backlog in the message queue, ultimately leading to failure and
errors. No
+ more! The aggregate message queue info is still available in the ``_system``
output.
+ ( :ghissue:`3370` )
+
+* :ghissue:`3208`: CouchDB now uses the latest ibrowse 4.4.2 client for the
replicator.
+
+* :ghissue:`3600`, :ghissue:`3047`, :ghissue:`3019`: The default ``slack``
channel for
+ smoosh auto-compaction has been increased to a more reasonable value,
reducing load
+ on systems that would have normally been idle in CouchDB 2.x (where no
auto-compaction
+ daemon exists).
+
+* :ghissue:`3711`: Changes feeds may no longer rewind after shard moves,
assumimg the
+ node and range specified by the changes feed nonce can still match an
existing node's
+ shard.
+
+Bugfixes
+--------
+
+* Complete retirement of the JavaScript test suite - replaced by Elixir.
Hooray!
+* :ghissue:`3165`: Allow configurability of JWT claims that require a value.
Also fixes
+ :ghissue:`3232`. Further, :ghissue:`3392` no longer validates claims
provided that
+ CouchDB does not require.
+* :ghissue:`3160`, :ghissue:`3161`: The ``run_queue`` statistic now returns
valid
+ information even when using Erlang BEAM dirty CPU and IO queues.
+* :ghissue:`3162`: Makefiles updated to include local configs & clean configs
when
+ running ``make devclean``.
+* :ghissue:`3195`: The ``max_document_size`` parameter now has a clearer
explanation in
+ ``default.ini``.
+* :ghissue:`3207`, :ghissue:`2536`: Improve the ``INSTALL.Unix.md`` file.
+* :ghissue:`3212`: Base and extra headers are properly combined when making
replicator
+ requests that contain duplicate headers.
+* :ghissue:`3201`: When using a POST with request body to pass parameters to a
view-like
+ request, the boolean parameters are accepting only JSON strings, but not
booleans.
+ Now, CouchDB accepts ``true`` and ``false`` for the ``stable`` parameter, in
addition
+ to ``"true"`` and ``"false"``.
+ comment in
+* :ghissue:`1988`: Attachment operations ``PUT /db/doc`` and ``POST /db`` now
perform
+ consistent attachment name validation.
+* :ghissue:`3249`: Documents with lots of conflicts no longer blow up couchjs
if the
+ user calls ``_changes`` with a JS filter and with ``style=all_docs``.
+* :ghissue:`3144`: Respawning compaction jobs to catch up with intervening
changes are
+ now handled correctly by the smoosh monitor.
+* :ghissue:`3252`: CouchDB now exports the ``couch_util:json_decode/2``
function to
+ support maps instead of the default data structure.
+* :ghissue:`3255`, :ghissue:`2558`: View files that have incorrect
``db_headers``
+ now reset the index forcing a rebuild.
+* :ghissue:`3271`: Attachments that are stored uncompressed but later
replicated to
+ nodes that compress the attachment no longer fail an internal md5 check that
would
+ break eventual consistency between nodes.
+* :ghissue:`3277`: ``req_body`` requests that have ``req_body`` set already now
+ properly return the field without parsing.
+* :ghissue:`3279`: Some default headers were missing from some responses in
replication,
+ including ``X-CouchDB-Body-Time`` and ``X-Couch-Request-ID``.
+* :ghissue:`3329`, :ghissue:`2962`: CouchDB no longer returns broken couchjs
processes
+ to the internal viewserver process pool.
+* :ghissue:`3340`, :ghissue:`1943`: ``PUTs`` of ``multipart/related``
attachments now
+ support a ``Transfer-Encoding`` value of ``chunked``. Hooray!
+* :ghissue:`2858`, :ghissue:`3359`: The cluster setup wizard no longer fails
when a
+ request to ``/`` is not made before a request to ``finish_cluster``.
+* :ghissue:`3368`: Changing the ``max_dbs_open`` configuration setting
correctly
+ ensures that each new ``couch_server_X`` property receives
``1/num_servers()`` of it.
+* :ghissue:`3373`: Requests to ``{db}/_changes`` with a custom filter no
longer result
+ in a fabric request timeout if the request body is not available to
additional cluster
+ nodes, resulting in a more descriptive exit message and proper JSON object
validation
+ in the payload.
+* :ghissue:`3409`: The internal ``chttpd_external:json_req_obj/2`` function
now reads
+ the cached ``peer`` before falling back to a socket read operation.
+* :ghissue:`3335`, :ghissue:`3617`, :ghissue:`3708`: The
``COUCHDB_FAUXTON_DOCROOT``
+ environment variable is now introduced to allow its explicit overriding at
startup.
+* :ghissue:`3471`: http clients should no longer receive stacktraces
unexpectedly.
+* :ghissue:`3491`: libicu tests no longer fail on older OS releases such as
CentOS 6
+ and 7.
+* :ghissue:`3541`: Usernames and passwords can now contain `@` and not break
the
+ CouchDB replicator.
+* :ghissue:`3545`: The ``dreyfus_index_manager`` process now supports offheap
message
+ queues.
+* :ghissue:`3551`: The replication worker pool now properly cleans up worker
processes
+ as they are done via the ``worker_trap_exits = false`` setting.
+* :ghissue:`3633`, :ghissue:`3631`: All code paths for creating databases now
fully
+ respect db creation options, including partitioning options.
+* :ghissue:`3424`, :ghissue:`3362`: When using ``latest=true`` and an old
revision with
+ conflicting children as rev is specified, CouchDB no longer returns an
``"error":
+ "case_clause"`` response.
+* :ghissue:`3673`: Non-existent attachments now return a ``404`` when the
attachment
+ is missing.
+* :ghissue:`3698`: The ``dev/run`` development script now allows clusters
where ``n >
+ 5``.
+* :ghissue:`3700`: The ``maybe_close`` message is now sent to the correct
internal
+ process.
+* :ghissue:`3183`: The smoosh operator guide now recommends to use the
``rpc:multicall``
+ function.
+* :ghissue:`3712`: Including a payload within a ``DELETE`` operation no longer
hangs
+ the next request made to the same mochiweb acceptor.
+* :ghissue:`3715`: For clusters with databases where ``n > [cluster] n``,
attachments
+ chunks are longer dropped on quorum writes.
+* :ghissue:`3507`: If a file is truncated underneath CouchDB, CouchDB will now
log
+ if it finds this situation with a ``file_truncate_error``.
Review comment:
```suggestion
the filename if it finds this situation with a ``file_truncate_error``.
```
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