[GitHub] [couchdb-documentation] janl commented on a change in pull request #682: CouchDB 3.2 release notes

[GitBox <gi...@apache.org>]

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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