1.1. 3.3.x Branch

1.1.1. Version 3.3.1

1.1.1.1. Features and Enhancements

  • #4343, #4344, #4345: Fix undef when parsing replication doc body with a user_ctx.

  • #4346: Add make target to find undef errors.

  • #4347: Remove failed couch_plugins experiment, fixes more undef errors.

  • #4348: Fix undef error in weatherreport.

1.1.2. Version 3.3.0

1.1.2.1. Highlights

  • #4308: Replicator was optimized and should be faster. It now uses the _bulk_get endpoint on the source, and can statistically skip calling _revs_diff on the target. Benchmark tests replicating 1M documents, 10KB each, from UK to US East show a 3x speed improvement.

Replicator, Tea! Earl Grey! Hot! (Because Picard said so)

1.1.2.2. Features and Enhancements

  • #3766, #3970, #3972, #4093, #4102, #4104, #4110, #4111, #4114, #4245, #4246:, #4266: Add smoosh queue persistence. This allows resuming smoosh operations after a node restart. This is disabled by default and can be enabled with [smoosh] persist = true. Optimise smoosh operations and increase test coverage to 90%.

  • #3798: Add libicu version and collation algorithm version to /_node/_local/_versions.

  • #3837: The Erlang source tree is now auto-formatted with erlfmt.

  • #3845: Clean up the couch_ejson_compare C-module and squash Microsoft compiler warnings.

  • #3832: Add GET variant to _dbs_info endpoint, used to be POST only.

  • #3864: Improve erlang_ls configuration.

  • #3853: Remove legacy ddoc_cache_opener gen_server and speed up event routing.

  • #3879: Remove use of ERL_OPTS environment variable. All supported Erlang versions now use ERL_COMPILER_OPTIONS for the same purpose.

  • #3883: Add support for SpiderMonkey 91.

  • #3889: Track libicu collator versions in the view header.

  • #3952: Make the timeout for receiving requests from attachment writers configurable.

  • #3927: Include index signature in _search_info.

  • #3963: Optimtize key tree stemming by using maps instead of sets. This greatly reduced memory usage for heavily conflicted docs in some situations.

  • #3974: Create new config options in [couchdb] and [smoosh] sections to enable finer control of compaction logging levels.

  • #3983, #3984, #3985, #3987, #4033: Add various functions to couch_debug module.

  • #4000: Ensure Object.prototype.toSource() is always available.

  • #4018: Update jiffy to 1.1.1 and b64url to 1.0.3.

  • #4021: Reduce smoosh compaction log level to debug.

  • #4041: Allow and evaluate nested json claim roles in JWT token.

  • #4060, #4290: Add support for Erlang 25.

  • #4064: Enable replicating purge requests between nodes. Also avoid applying interactive purges more than once.

  • #4069, #4084: Drop support for Erlang < 23, update vm.args settings to match. Review this if you have customized your vm.args.

  • #4083: Support Elixir 13.

  • #4085: Add an option to let custodian always use [cluster] n value.

  • #4095: Implement winning_revs_only option for the replicator. It replicates only the winning revisions from the source to the target, effectively discarding conflicts.

  • #4135: Separate search IO from file IO.

  • #4140, #4162: Upgrade hash algorithm for cookie auth (sha1 -> sha256). This introduces a new config setting hash_algorithms. New cookie values are hashed with sha256, sha1 hashes are still accepted. Admins can set this to sha256 only. Sha1 will be disallowed in the next major release. Show supported hash algorithms in /_node/_local/_versions endpoint.

  • #4179: Don’t double-encode changes sequence strings in the replicator.

  • #4182: Explicitly maintain a fully connected cluster. Previously, it was possible for the nodes to disconnect, and for that state to persist until the nodes restarted.

  • #4198: Redact passwords in log file.

  • #4243: Update mochiweb to 3.1.1.

  • #4254: The _dbs_info access control is now configured with the [couchdb] admin_only_all_dbs setting. Defaults to true. This was a leftover from the 3.0.0 release.

  • #4264: active database sizes is now limited to leaf nodes. Previously, it included intermediate tree nodes, which had the effect that deleting (large) documents did not decrease active database size. In addition, smoosh now picks up databases where large documents are deleted for compaction more eagerly, reclaiming the deleted space quicker.

  • #4270: Shard splitting now uses its own reshard IO priority. It can be configured to be safely run in the background with production loads, or with maximum IO available, if admins prefer quicker progress.

  • #4274: Improve validation of replicator job parameters & move _replicator VDU design doc to internal BDU.

  • #4280: Add CFLAGS and LDFLAGS to ICU build parameters.

  • #4284: Remove all usage of global to avoid potential deadlocks in replication jobs.

  • #4287: Allow = in config key names.

  • #4306: Fauxton was updated to version v1.2.9. Changes since v1.2.8 can be found here

  • #4317: Write “Relax” welcome message to standard out on Windows.

1.1.2.3. Performance

  • #3860: Add sharding to couch_index_server, similar to #3366, avoids processing bottlenecks on servers with a lot of concurrent view indexing going on.

  • #3891: Avoid decoding JWT payloads when not necessary.

  • #4031: Default [rexi] use_kill_all to true. This improves intra-cluster-node messaging. Set to false if you run a cluster with nodes that have a version <3.0.0.

  • #4052: Optimise couch_util:reorder_results/2,3, which speeds up _bulk_docs and _revs_diff.

  • #4055: Avoid using length/1 guard for >0 or ==0 tests in couch_key_tree.

  • #4056: Optimise couch_key_tree:find_missing/2. This speeds up _revs_diff.

  • #4059: Reduce complexity of possible_ancestors from quadratic to linear. This speeds up working with heavily conflicted documents significantly.

  • #4091: Optimise couch_util:to_hex/1, this speeds up all operations that need to encode a revision id into JSON (this is most operations).

  • #4106: Set io_priority in all IO paths. Introduces system io_priority.

  • #4144, #4172: Implement _bulk_get support for the replicator. Backward compatibility is ensured. This speeds up all replications. Add option to disable new behaviour for legacy setups.

  • #4163: Statistically skip _revs_diff in the replicator. This improves performance for replications into empty targets.

  • #4177: Remove the long deprecated bigcouch 0.4 change sequence support.

  • #4238: Optimise _bulk_get endpoint. This speeds up replication of 1M docs by ~2x. Individual _bulk_get requests are up to 8x faster.

  • #3517: Add experimental fix for reduce performance regression due to expensive repeated AST-transformations on newer SpiderMonkey versions. Set COUCHDB_QUERY_SERVER_JAVASCRIPT env var to COUCHDB_QUERY_SERVER_JAVASCRIPT="/opt/couchdb/bin/couchjs /opt/couchdb/share/server/main-ast-bypass.js".

  • #4262: couchjs executable built against Spidermonkey >= 78 will return the detailed major.minor.patch as opposed to just the major version as previously.

1.1.2.4. Bugfixes

  • #3817: Fix undefined function call in weatherreport.

  • #3819: Return 400 instead of 500 response code for known invalid _bulk_docs with new_edits=false request.

  • #3861: Add SameSite setting when clearing session cookies.

  • #3863: Fix custom TLS distribution for Erlang 20.

  • #3870: Always send all cookie attributes.

  • #3886: Avoid changes feed rewind after shard move with no subsequent db updates.

  • #3888: Make _stats endpoint resilient against nodes that go offline.

  • #3901: Use db-creation time instead of 0 for instance_start_time to help replicator recognise whether a peer database was deleted and recreated.

  • #3909: Fix new_edits:false and VDU function_clause.

  • #3934: Fix replicated_changes typo for purge doc updates.

  • #3940: Ensure the multipart parser always monitors the worker and make sure to wait for attachment uploads before responding.

  • #3950: Ignore responses from timed-out or retried ibrowse calls.

  • #3969: Fix skip and limit for _all_dbs and _dbs_info.

  • #3979: Correctly respond with a 500 code when document updates time out under heavy load.

  • #3992: Show that Search is available if it was available before. Avoid Search availability disappearing just because a Search node was temporarily not available.

  • #3993: Return a 400 error when decoding a JWT token fails, rather than crashing and not responding at all.

  • #3990: Prevent creation of ddocs with no name through Mango index creation.

  • #4003: Improve index building during shard splitting.

  • #4016: Fix function_clause error for replicated changes with a target VDU.

  • #4020: Fix maybe_handle_error clauses.

  • #4037: Fix ES{256,384,512} support for JWTs.

  • #4040: Handle exit(shutdown) error in chttpd.

  • #4043: Fix purge request timeouts (5s -> infinity).

  • #4146: The devcontainer has been updated.

  • #4050: Handle all_dbs_active in fabric_doc_update.

  • #4160: Return a proper 400 error when an invalid object is sent to _bulk_get.

  • #4070: Prevent error:function_clause in check_security/3 if roles claim is malformed.

  • #4075: Fix couch_debug:opened_files* functions.

  • #4108: Trim X-Auth-CouchDB-Roles header after reading.

  • #4153: The require_valid_user setting is now under chttpd.

  • #4161: Fix content-type handling in _session.

  • #4176: Fix eventsource _changes feed.

  • #4197: Support large (and impractical as-of-yet) q values. Fix shard open timeouts for q > 64.

  • #4199: Fix spurious unlock in close_db_if_idle.

  • #4230: Avoid refresh messages piling up in prometheus server.

  • #4240: Implement global password hasher process. This fixes a race-condition when setting new admin passwords in quick succession on a multicore server.

  • #4261, #4271: Clean up stale view checkpoints, improve purge client cleanup logging

  • #4272: Kill all couch_server_N if database_dir changes.

  • #4313: Use chttpd config section when patching local _replicate endpoints.

  • #4321: Downgrade jiffy to allow building on Windows again.

  • #4329, #4323: Ignore build windows binaries in git.

1.1.2.5. Tests

  • #3825: Eliminate Elixir compiler warnings.

  • #3830: Reduce skipped Elixir integration tests.

  • #3890: Handle not_found lookups removing ddoc cache key.

  • #3892: Use Debian Stable for CI, add Erlang 24 to CI.

  • #3898: Remove CI support for Ubuntu 16.04.

  • #3903, #3914: Refactor Jenkins to dynamically generate stages. Drop MINIMUM_ERLANG_VERSION to 20, drop the packaging ERLANG_VERSION to 23, add the weatherreport-test as a build step, and add ARM and POWER back into the matrix.

  • #3921:, #3923: Execute various tests in clean database_dir to avoid subsequent test flakiness.

  • #3968: Ensure key tree rev stemming does’t take too much memory.

  • #3980: Upgrade Mango test dependency nose to nose and fix flaky-on-Windows tests.

  • #4006: Remove CI support for Debian 9.

  • #4061, #4082: Update PPC CI builder.

  • #4096: Fix flaky validate_doc_update Elixir test.

  • #4123: Fix haproxy.cfg.

  • #4126: Return a 400 response for a single new_edits=false doc update without revision.

  • #4129: Fix proxyauth_test and removed it from skip list.

  • #4132: Address race condition in cpse_incref_decref test.

  • #4151: Refactor replication tests to use clustered endpoints.

  • #4178: Add test coverage to prevent junk in eventsource.

  • #4188: Enable eunit coverage for all applications instead of enabling it per-application.

  • #4202: Fix race condition in ddoc cache LRU test.

  • #4203, #4205: Reduce test log noise.

  • #4268: Improve flaky _dbs_info test.

  • #4319: Fix offline configure and make release.

  • #4328: Fix eaddrnotavail in Elixir tests under Windows.

  • #4330: Do not run source checks in main CI build.

1.1.2.6. Docs

  • #4164: The CouchDB documentation has been moved into the main CouchDB repository.

  • #4307, #4174: Update Sphinx to version 5.3.0

  • #4170: Document the /_node/_local/_versions endpoint.

1.1.2.7. Builds

  • #4097: Stop publication of nightly packages. They were not used anywhere.

  • #4322: Reuse installed rebar and rebar3 for mix. Compatible with Elixir =< 13 only. Elixir 14 is not supported yet.

  • #4326: Move Elixir source checks to a separate build step.

1.1.2.8. Other

  • Added pumpkin spice to selected endpoints. — Thank you for reading the 3.3.0 release notes.