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NEWS
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mongo-c-driver 1.4.0-beta1
==========================
It is my pleasure to announce the beta release of mongo-c-driver 1.4.0.
TLS
---
The driver can now use the native TLS and crypto functions included in Mac OS X
and Windows. OpenSSL is no longer required for TLS or authentication on Mac or
Windows. By default, OpenSSL is used if available, the default will switch in
version 2.0 to prefer native TLS.
For native TLS on Mac:
./configure --enable-ssl=darwin
For Windows:
cmake "-DENABLE_SSL=WINDOWS" -G "Visual Studio 10 Win64" "-DCMAKE_INSTALL_PREFIX=C:\mongo-c-driver"
All of the TLS implementations now load the native default certificate store,
with OpenSSL on Windows falling back on the Windows native certificate store if
no other can be found.
The "ca_dir" field on mongoc_ssl_opt_t is only supported by OpenSSL. All other
fields, including "pem_file", are supported by all implementations.
A new field, "allow_invalid_hostname", has been added to mongoc_ssl_opt_t and is
preferred over the existing "allow_invalid_certificate" to disable hostname
verification.
The driver now supports the latest OpenSSL 1.1 in addition to past versions.
Application Performance Monitoring
----------------------------------
The driver implements the MongoDB Command Monitoring Spec. Applications can
record the duration and other details of every operation the driver performs on
the server. See "Introduction to Application Performance Monitoring" in the
docs.
Error API
---------
New functions mongoc_client_set_error_api and mongoc_client_pool_set_error_api
allow applications to distinguish client and server errors. See the "Error
Reporting" doc.
Unacknowledged Write Results
----------------------------
Unacknowledged writes (writes whose mongoc_write_concern_t "w" value is zero)
now reply with an empty document instead of one with nInserted: 0, nUpdated: 0,
and so on.
Command functions now ignore the read preferences set on a client, database,
or collection. Instead, they use the mongoc_read_prefs_t passed in explicitly,
or default to "primary". This change was made to bring them in line with the
Server Selection Spec. These are the affected functions:
* mongoc_client_command
* mongoc_client_command_simple
* mongoc_database_command
* mongoc_database_command_simple
* mongoc_collection_command
* mongoc_collection_command_simple
On the other hand, the following command-specific helper functions now use the
collection's read preference:
* mongoc_collection_count
* mongoc_collection_stats
New functions to send maxTimeMS or any arbitrary options with findAndModify:
* mongoc_find_and_modify_opts_set_max_time_ms
* mongoc_find_and_modify_opts_append
New function to include a write concern with a generic command function
like mongoc_client_command_simple:
* mongoc_write_concern_append
Public API For Higher-Level Drivers
-----------------------------------
New functions support language drivers (specifically the PHP and HHVM drivers)
using only the libmongoc public API:
* mongoc_bulk_operation_get_hint
* mongoc_client_command_simple_with_server_id
* mongoc_client_get_server_description
* mongoc_client_get_server_description_by_id
* mongoc_client_get_server_descriptions
* mongoc_client_select_server
* mongoc_cursor_get_limit
* mongoc_cursor_new_from_command_reply
* mongoc_cursor_set_hint
* mongoc_cursor_set_limit
* mongoc_log_trace_disable
* mongoc_log_trace_enable
* mongoc_server_description_ismaster
* mongoc_server_description_round_trip_time
* mongoc_server_description_type
* mongoc_server_descriptions_destroy_all
* mongoc_uri_get_option_as_bool
* mongoc_uri_get_option_as_int32
* mongoc_uri_get_option_as_utf8
* mongoc_uri_option_is_bool
* mongoc_uri_option_is_int32
* mongoc_uri_option_is_utf8
* mongoc_uri_set_auth_source
* mongoc_uri_set_database
* mongoc_uri_set_option_as_bool
* mongoc_uri_set_option_as_int32
* mongoc_uri_set_option_as_utf8
* mongoc_uri_set_password
* mongoc_uri_set_read_concern
* mongoc_uri_set_read_prefs_t
* mongoc_uri_set_username
* mongoc_uri_set_write_concern
* mongoc_write_concern_is_acknowledged
* mongoc_write_concern_is_valid
* mongoc_write_concern_journal_is_set
Now that these public APIs are available, the PHP drivers no longer define the
MONGOC_I_AM_A_DRIVER preprocessor symbol to access private APIs. The symbol is
removed from C Driver headers, and libmongoc-priv.so is no longer installed.
Other Features
--------------
* New connection string option "localThresholdMS".
* zSeries and POWER8 platform support.
* Performance enhancements, reduce allocation and copying in command code.
* All man page names now begin with "mongoc_" to avoid install conflicts.
* New function mongoc_gridfs_file_set_id.
Deprecations
------------
Automatically calling mongoc_init and mongoc_cleanup is a GCC-specific feature
that is now deprecated, and will be removed in version 2. The driver should be
built with:
./configure --disable-automatic-init-and-cleanup
Or:
cmake "-DENABLE_AUTOMATIC_INIT_AND_CLEANUP=OFF" -G "Visual Studio 10 Win64" "-DCMAKE_INSTALL_PREFIX=C:\mongo-c-driver"
In this configuration, applications must explicitly init and cleanup libmongoc.
Deprecated functions:
* mongoc_write_concern_get_fsync
* mongoc_write_concern_set_fsync
Notable Bug Fixes
-----------------
* Logic bugs using tag sets to select replica set members with complex configs
* mongoc_client_get_database_names no longer filters out a replica set
member's "local" database.
* mongoc_client_get_gridfs now ensures the proper indexes on the files and
chunks collections.
* SecondaryPreferred fails if primary matches tags but secondaries don't.
* mongoc_collection_find_and_modify_with_opts can return true on
writeConcernError.
* mongoc_collection_validate doesn't always init "reply".
* The strings referred to by mongoc_ssl_opt_t, like pem_file and ca_file, are
now copied into the client or client pool by mongoc_client_set_ssl_opts or
mongoc_client_pool_set_ssl_opts, and need not be kept valid afterward.
* mongoc_collection_count_with_opts ignored flags and read_prefs.
* minPoolSize of 0 should mean "no minimum".
* mongoc_database_create_collection should always use the primary.
* The GSSAPI properties SERVICE_NAME and CANONICALIZE_HOST_NAME are now
properly parsed from the URI, see the "Authentication" doc for details.
* Comprehensive compatibility with various C standards and compilers.
Acknowledgments
---------------
Thanks to everyone who contributed to the development of this release.
* A. Jesse Jiryu Davis
* Hannes Magnusson
* Ian Boros
* Fiona Rowan
* Jeremy Mikola
* Christoph Schwarz
* Mike Lloyd
* Remi Collet
* Jean-Bernard Jansen
* David Hatch
* Derick Rethans
* Brian Samek
Peace,
A. Jesse Jiryu Davis
mongo-c-driver 1.3.5
====================
It is my pleasure to announce mongo-c-driver 1.3.5. This release fixes a crash
in mongoc_cleanup when an allocator had been set with bson_mem_set_vtable, and
introduces a configure option MONGOC_NO_AUTOMATIC_GLOBALS which prevents code
built with GCC from automatically calling mongoc_init and mongoc_cleanup when
your code does not.
Thanks to everyone who contributed to the development of this release.
* A. Jesse Jiryu Davis
* Hannes Magnusson
Peace,
A. Jesse Jiryu Davis
mongo-c-driver 1.3.4
====================
It is my pleasure to announce the MongoDB C Driver 1.3.4. This release fixes a
security vulnerability: when a mongoc_client_t uses SSL and is disconnected, it
failed to re-verify the server certificate after reconnecting. This flaw affects
single clients, not pooled ones.
Thanks to everyone who contributed to the development of this release.
* A. Jesse Jiryu Davis
* Hannes Magnusson
* Remi Collet
Peace,
A. Jesse Jiryu Davis
mongo-c-driver 1.3.3
====================
It is my pleasure to announce MongoDB C Driver 1.3.3. This fixes a bug where
a slightly-oversized bulk write operation was not split into batches; instead,
it was sent whole to the server, which rejected it.
Peace,
A. Jesse Jiryu Davis
mongo-c-driver 1.3.2
====================
It is my pleasure to announce MongoDB C Driver 1.3.2. This is a bugfix release:
* A socket is properly discarded after a network error from a command.
* mongoc_database_get_collection now copies the database's read preferences,
read concern, and write concern, instead of copying the client's.
* mongoc_cursor_t's private struct now allows a negative limit.
Thanks to everyone who contributed to this release.
* A. Jesse Jiryu Davis
* Jeremy Mikola
* Hannes Magnusson
Peace,
A. Jesse Jiryu Davis
mongo-c-driver 1.3.1
====================
It is my pleasure to announce MongoDB C Driver 1.3.1. This is a bugfix release:
* mongoc_client_get_gridfs now copies the client's read preferences, read
concern, and write concern to the newly created mongoc_gridfs_t. Before
this fix, GridFS operations were always executed with the default config:
data was read from the primary, with the read concern level "local", and
written with write concern "acknowledged". Now, if you have configured any
of these options on the mongoc_client_t, they are respected by the
mongoc_gridfs_t.
* CMakeLists.txt now includes and installs the pkg-config files.
Thanks to everyone who contributed to this release.
* A. Jesse Jiryu Davis
* Hannes Magnusson
* Christopher Wang
* Jean-Bernard Jansen
* Jeremy Mikola
* Jeroen Ooms
Peace,
A. Jesse Jiryu Davis
mongo-c-driver 1.3.0
====================
It is my pleasure to announce to you the release of the MongoDB C Driver 1.3.0.
Changes since the the release candidate 1.3.0-rc0:
* Fix a cursor bug introduced on big-endian platforms in 1.3.0-beta0.
* Improve documentation for mongoc_host_list_t.
* Move private mongoc_host_list_t functions from public header.
* Refactor the build system to declare library version in one place.
All new features and changes since the previous stable release, 1.2.1:
* If the driver is compiled without SSL support but a URI with "ssl=true"
is passed to mongoc_client_new, mongoc_client_new_from_uri, or
mongoc_client_pool_new, the function logs an error and returns NULL. Before,
the driver would attempt a non-SSL connection.
* mongoc_collection_find_and_modify will now apply the mongoc_collection_t's
write_concern_t when talking to MongoDB 3.2.
* Support for MongoDB 3.2's "readConcern" feature for queries, counts, and
aggregations. The option "readConcernLevel" is now accepted in the MongoDB
URI. New struct mongoc_read_concern_t, and functions operating on it:
- mongoc_client_get_read_concern
- mongoc_client_set_read_concern
- mongoc_database_get_read_concern
- mongoc_database_set_read_concern
- mongoc_collection_get_read_concern
- mongoc_collection_set_read_concern
- mongoc_read_concern_copy
- mongoc_read_concern_destroy
- mongoc_read_concern_get_level
- mongoc_read_concern_new
- mongoc_read_concern_set_level
- mongoc_uri_get_read_concern
* Support for MongoDB 3.2's "bypassDocumentValidation" option for writes.
* New struct mongoc_bulk_write_flags_t and related functions:
- mongoc_bulk_operation_set_bypass_document_validation
* New struct mongoc_find_and_modify_opts_t and related functions:
- mongoc_find_and_modify_opts_new
- mongoc_find_and_modify_opts_destroy
- mongoc_find_and_modify_opts_set_sort
- mongoc_find_and_modify_opts_set_update
- mongoc_find_and_modify_opts_set_fields
- mongoc_find_and_modify_opts_set_flags
- mongoc_find_and_modify_opts_set_bypass_document_validation
- mongoc_collection_find_and_modify_with_opts
* New functions to copy database and collection handles:
- mongoc_collection_copy
- mongoc_database_copy
* Support for MongoDB 3.2 wire protocol: use commands in place of OP_QUERY,
OP_GETMORE, and OP_KILLCURSORS messages.
* To explain a query plan with MongoDB 3.2, you must now call the "explain"
command, instead of including the "$explain" key in a mongoc_collection_find
query. See the mongoc_collection_find documentation page for details.
* Configurable wait time on tailable cursors with MongoDB 3.2:
- mongoc_cursor_get_max_await_time_ms
- mongoc_cursor_set_max_await_time_ms
* Use electionId to detect a stale replica set primary during a network split.
* Disconnect from replica set members whose "me" field does not match the
connection address.
* The client side matching feature, mongoc_matcher_t and related functions,
are deprecated and scheduled for removal in version 2.0.
* New CMake options ENABLE_SSL, ENABLE_SASL, ENABLE_TESTS, and ENABLE_EXAMPLES.
* Use constant-time comparison when verifying credentials.
* Combine environment's CFLAGS with configure options when building.
* Improved man page output and "whatis" entries.
There are extensive bugfixes and improvements in GridFS since 1.2.1, including:
* Handle seeking, reading, and writing past the end of a GridFS file.
* If a GridFS chunk is missing, mongoc_gridfs_file_readv sets file->error to
domain MONGOC_ERROR_GRIDFS and a new code MONGOC_ERROR_GRIDFS_CHUNK_MISSING.
* Optimization for long seeks forward with mongoc_gridfs_file_seek.
Other fixes since 1.2.1:
* Memory leaks in mongoc_database_has_collection and mongoc_cursor_next.
* Report writeConcern failures from findAndModify and from legacy writes.
* Memory leak in mongoc_database_find_collections.
* Set OP_QUERY's nToReturn from the provided limit.
* Fix compiler warnings and errors, especially with Visual Studio 2015,
GCC 4.8, and IBM XL C.
* Bugs and typos in tutorial examples.
Thanks to everyone who contributed to this release.
* A. Jesse Jiryu Davis
* Hannes Magnusson
* Kyle Suarez
* Jose Sebastian Battig
* Matt Cotter
* Claudio Canella
* alexeyvo
* Christopher Wang
* Flavio Medeiros
* Iago Rubio
* Jeremy Mikola
* Victor Leschuk
* Jason Carey
Peace,
A. Jesse Jiryu Davis
mongo-c-driver 1.3.0-rc0
========================
It is my pleasure to announce to you the first release candidate of MongoDB C
driver 1.3.0. It includes additive ABI changes and bugfixes, and support for
the upcoming MongoDB 3.2. It is compatible with MongoDB 2.4 and later.
New features and changes since 1.3.0-beta0:
* If the driver is compiled without SSL support but a URI with "ssl=true"
is passed to mongoc_client_new, mongoc_client_new_from_uri, or
mongoc_client_pool_new, the function logs an error and returns NULL. Before,
the driver would attempt a non-SSL connection.
* New functions to copy database and collection handles:
- mongoc_collection_copy
- mongoc_database_copy
* If a GridFS chunk is missing, mongoc_gridfs_file_readv sets file->error to
domain MONGOC_ERROR_GRIDFS and a new code MONGOC_ERROR_GRIDFS_CHUNK_MISSING.
* Use electionId to detect a stale replica set primary during a network split.
* Disconnect from replica set members whose "me" field does not match the
connection address.
* The client side matching feature, mongoc_matcher_t and related functions,
are deprecated and scheduled for removal in version 2.0.
* New CMake options ENABLE_SSL, ENABLE_SASL, ENABLE_TESTS, and ENABLE_EXAMPLES.
* The build system is refactored to declare the current version and latest
release in one place.
Other fixes:
* Memory leaks in mongoc_database_has_collection and mongoc_cursor_next.
* Report writeConcern failures from findAndModify and from legacy writes.
Thanks to everyone who contributed to this release candidate.
* A. Jesse Jiryu Davis
* Hannes Magnusson
* Matt Cotter
* Claudio Canella
* Victor Leschuk
* Flavio Medeiros
* Christopher Wang
Peace,
A. Jesse Jiryu Davis
mongo-c-driver 1.3.0-beta0
==========================
It is my pleasure to announce to you the beta of MongoDB C driver 1.3.0.
This beta includes additive ABI changes and bugfixes, and support for
the upcoming MongoDB 3.2. It is compatible with MongoDB 2.4 and later.
New features and changes:
* mongoc_collection_find_and_modify will now apply the mongoc_collection_t's
write_concern_t when talking to MongoDB 3.2.
* Support for MongoDB 3.2's "readConcern" feature for queries, counts, and
aggregations. The option "readConcernLevel" is now accepted in the MongoDB
URI. New struct mongoc_read_concern_t, and functions operating on it:
- mongoc_client_get_read_concern
- mongoc_client_set_read_concern
- mongoc_database_get_read_concern
- mongoc_database_set_read_concern
- mongoc_collection_get_read_concern
- mongoc_collection_set_read_concern
- mongoc_read_concern_copy
- mongoc_read_concern_destroy
- mongoc_read_concern_get_level
- mongoc_read_concern_new
- mongoc_read_concern_set_level
- mongoc_uri_get_read_concern
* Support for MongoDB 3.2's "bypassDocumentValidation" option for writes.
* New struct mongoc_bulk_write_flags_t and related functions:
- mongoc_bulk_operation_set_bypass_document_validation
* New struct mongoc_find_and_modify_opts_t and related functions:
- mongoc_find_and_modify_opts_new
- mongoc_find_and_modify_opts_destroy
- mongoc_find_and_modify_opts_set_sort
- mongoc_find_and_modify_opts_set_update
- mongoc_find_and_modify_opts_set_fields
- mongoc_find_and_modify_opts_set_flags
- mongoc_find_and_modify_opts_set_bypass_document_validation
- mongoc_collection_find_and_modify_with_opts
* Configurable wait time on tailable cursors with MongoDB 3.2:
- mongoc_cursor_get_max_await_time_ms
- mongoc_cursor_set_max_await_time_ms
* Support for MongoDB 3.2 wire protocol: use commands in place of OP_QUERY,
OP_GETMORE, and OP_KILLCURSORS messages.
* To explain a query plan with MongoDB 3.2, you must now call the "explain"
command, instead of including the "$explain" key in a mongoc_collection_find
query. See the mongoc_collection_find documentation page for details.
* Use constant-time comparison when verifying credentials.
* Combine environment's CFLAGS with configure options when building.
* Improved man page output and "whatis" entries.
Extensive bugfixes and improvements in GridFS, including:
* Handle seeking, reading, and writing past the end of a GridFS file.
* Optimization for long seeks forward with mongoc_gridfs_file_seek.
Other fixes:
* Memory leak in mongoc_database_find_collections.
* Set OP_QUERY's nToReturn from the provided limit.
* Fix compiler warnings and errors, especially with Visual Studio 2015,
GCC 4.8, and IBM XL C.
* Bugs and typos in tutorial examples
Thanks to everyone who contributed to this beta release.
* A. Jesse Jiryu Davis
* Hannes Magnusson
* Kyle Suarez
* Jose Sebastian Battig
* Jeremy Mikola
* Iago Rubio
* Matt Cotter
* alexeyvo
Peace,
A. Jesse Jiryu Davis
mongo-c-driver 1.2.2
====================
It is my pleasure to announce to you the MongoDB C driver 1.2.2.
This release fixes a rare bug where the driver can direct reads to hidden
secondaries unintentionally. It also includes fixes and improvements to the
build system.
Peace,
A. Jesse Jiryu Davis
mongo-c-driver 1.2.1
====================
It is my pleasure to announce to you the MongoDB C driver 1.2.1.
This release includes critical bugfixes for SSL connections with
mongoc_client_pool_t, and for Unix domain socket connections.
The documentation is updated for a change introduced in version 1.2.0:
mongoc_client_set_ssl_opts and mongoc_client_pool_set_ssl_opts now configure
the driver to require an SSL connection to the server, even if "ssl=true" is
omitted from the MongoDB URI. Before, SSL options were ignored unless
"ssl=true" was included in the URI.
The build instructions are improved, including the steps to build with OpenSSL
on OS X El Capitan. Build errors and warnings are fixed for clang in gnu99
mode and MinGW.
Thanks to everyone who contributed to this version of libmongoc.
* A. Jesse Jiryu Davis
* Hannes Magnusson
* Tamas Nagy
Peace,
A. Jesse Jiryu Davis
mongo-c-driver 1.2.0
====================
It is my pleasure to announce to you the MongoDB C driver 1.2.0.
This is a stable release with additive ABI changes and bugfixes. It is
compatible with MongoDB version 2.4 and later.
The following notes summarize changes since the previous stable release,
1.1.11, including changes in the 1.2.0 betas and release candidate.
This version rewrites mongoc_client_t's internals to match two important new
specs for MongoDB drivers: the Server Discovery And Monitoring Spec and the
Server Selection Spec. The rewritten client has many advantages:
* All replica set members or mongos servers are discovered and periodically
checked in parallel. The driver's performance is dramatically better and
more predictable with multi-server deployments, or with a flaky network,
or when some servers are slow or down.
* Clients from the same mongoc_client_pool_t share a background thread that
discovers and monitors all servers in parallel.
* Unnecessary round trips for server checks and pings are eliminated.
* Behavior is documented in the specs, and consistent with other drivers,
even in complex or unusual scenarios.
* The URI's "replicaSet" option is enforced: the driver now refuses to connect
to a server unless it is a member of a replica set with the correct setName.
* Many race conditions related to changing deployment conditions are fixed.
To conform to the new specs, the client now accepts these options in the
MongoDB URI; see the mongoc_uri_t documentation for details:
* heartbeatFrequencyMS
* serverSelectionTimeoutMS
* serverSelectionTryOnce
* socketCheckIntervalMS
Other features:
* All timeouts that can be configured in the URI now interpret 0 to mean "use
the default value for this timeout".
* The client's read preference can be configured in the URI with the new
options "readPreference" and "readPreferenceTags"; see the mongoc_uri_t
documentation.
* The new mongoc_uri_get_read_prefs_t function retrieves both the read mode
and tags from a mongoc_uri_t.
* New accessors mongoc_gridfs_file_get_id, mongoc_client_get_default_database,
and mongoc_bulk_operation_get_write_concern.
* Debug tracing can be controlled at runtime with mongoc_log_trace_enable and
mongoc_log_trace_disable.
* Set mongoc_client_pool_t's size with mongoc_client_pool_min_size()
and mongoc_client_pool_max_size().
Other changes:
* Enable runtime asserts in release build.
* The libbson submodule's URL now uses the recommended https://, not git://
* mongoc_client_kill_cursor is now deprecated and will be removed in 2.0.
* The write concern "w=-1" is documented as obsolete.
These notable bugs have been fixed since 1.1.11:
* The driver now uses the server's maxWireVersion to avoid an error and
extra round-trip when executing aggregations on MongoDB 2.4 and older.
* Much improved reporting of network errors, unavailable servers, and
authentication failure
* Off-by-one error in mongoc_gridfs_file_seek with mode SEEK_END
* The writeConcernErrors field of bulk results is properly formatted.
* A cursor with a server "hint" sets slaveOkay and / or $readPreference.
* Destroying an exhaust cursor must close its socket
* "wtimeoutms" was ignored for write concerns besides "majority".
* Bulk write operations might fail in mixed-version sharded clusters with
some pre-2.6 mongos servers.
* A variety of bugs and incorrect results in mongoc_bulk_operation_execute.
* Numerous compiler warnings and build failures on various platforms.
* Copious refinements to the documentation.
Thanks to everyone who contributed to this version of libmongoc.
* Jason Carey
* Samantha Ritter
* A. Jesse Jiryu Davis
* Hannes Magnusson
* Kyle Suarez
* Jeremy Mikola
* Remi Collet
* Jose Sebastian Battig
* Derick Rethans
* Yuchen Xie
* Manuel Schoenlaub
* Sujan Dutta
* Lloyd Zhou
* rubicks
* Pawel Szczurko
* Yuval Hager
Peace,
A. Jesse Jiryu Davis
mongo-c-driver 1.2.0-rc0
========================
It is my pleasure to announce the release candidate of the MongoDB C driver
1.2.0. It includes features and bugfixes developed since 1.2.0-beta1.
Notable bugs fixed:
* Much improved reporting of network errors, unavailable servers, and
authentication failure
* Destroying an exhaust cursor must close its socket
* Various bugs in server reconnection logic
* mongoc_collection_aggregate returned invalid cursor after failure
* Wrong error message after failed network write on Sparc
* Missing JSON test files in release tarball
Other changes:
* Enable runtime asserts in release build.
* mongoc_client_kill_cursor is now deprecated and will be removed in
version 2.0.
This release candidate also includes all bugfixes from 1.1.11.
Version 1.2.0 final will be a stable release with additive ABI changes and
bugfixes. It is compatible with MongoDB version 2.4 and later.
Thanks to everyone who contributed to this version of libmongoc.
* A. Jesse Jiryu Davis
* Hannes Magnusson
* Kyle Suarez
* rubicks
* Jose Sebastian Battig
* Jason Carey
* Remi Collet
* Yuval Hager
Peace,
A. Jesse Jiryu Davis
mongo-c-driver 1.2.0-beta1
==========================
It is my pleasure to announce the second beta release of the MongoDB C driver
1.2.0. It includes features and bugfixes developed since 1.2.0-beta.
New features:
* Set mongoc_client_pool_t's size with mongoc_client_pool_min_size()
and mongoc_client_pool_max_size().
* The write concern "w=-1" is now documented as obsolete.
* Abundant fixes and additions to the documentation, beyond those in the
previous beta.
Notable bugs fixed:
* Crashes and races in several replica set scenarios.
* The driver now uses the server's maxWireVersion to avoid an error and
extra round-trip when executing aggregations on MongoDB 2.4 and older.
* Fixed network error handling in multiple code paths.
* connectTimeoutMS limits the time the driver can spend reconnecting to
servers in single-threaded (non-pooled) mode with serverSelectionTryOnce.
Version 1.2.0 final will be a stable release with additive ABI changes and
bugfixes. It is compatible with MongoDB version 2.4 and later.
Thanks to everyone who contributed to this version of libmongoc.
* A. Jesse Jiryu Davis
* Hannes Magnusson
* Manuel Schoenlaub
* Kyle Suarez
* Remi Collet
Peace,
A. Jesse Jiryu Davis
mongo-c-driver 1.2.0-beta
=========================
It is my pleasure to announce to you the first beta release of the MongoDB C
driver 1.2.0.
This release is a stable release with additive ABI changes and bugfixes.
It is compatible with MongoDB version 2.4 and later.
Version 1.2.0 rewrites mongoc_client_t's internals to match two important new
specs for MongoDB drivers: the Server Discovery And Monitoring Spec and the
Server Selection Spec. The rewritten client has many advantages:
* All replica set members or mongoses are discovered and periodically
checked in parallel. The driver's performance is dramatically better and
more predictable with multi-server deployments, or with a flaky network,
or when some servers are slow or down.
* Clients from the same mongoc_client_pool_t share a background thread that
discovers and monitors all servers in parallel.
* Unnecessary round trips for server checks and pings are eliminated.
* Behavior is documented in the specs, and consistent with other drivers, even
in complex or unusual scenarios.
* The URI's "replicaSet" option is enforced: the driver now refuses to connect
to a server unless it is a member of a replica set with the right setName.
* Many race conditions related to changing deployment conditions are fixed.
To conform to the new specs, the client now accepts these options in the MongoDB
URI; see the mongoc_uri_t documentation for details:
* heartbeatFrequencyMS
* serverSelectionTimeoutMS
* serverSelectionTryOnce
* socketCheckIntervalMS
Other features:
* All timeouts that can be configured in the URI now interpret 0 to mean "use
the default value for this timeout".
* The client's read preference can be configured in the URI with the new
options "readPreference" and "readPreferenceTags", see the mongoc_uri_t
documentation.
* The new mongoc_uri_get_read_prefs_t function retrieves both the read mode
and tags from a mongoc_uri_t.
* New accessors mongoc_gridfs_file_get_id, mongoc_client_get_default_database,
and mongoc_bulk_operation_get_write_concern.
* Debug tracing can be controlled at runtime with mongoc_log_trace_enable and
mongoc_log_trace_disable.
Notable bugs fixed:
* "wtimeoutms" was ignored for write concerns besides "majority".
* Bulk write operations might fail in mixed-version sharded clusters with
some pre-2.6 mongos servers.
* Normal operations were logged during startup and could not be silenced.
* A variety of bugs and incorrect results in mongoc_bulk_operation_execute.
* Numerous compiler warnings and build failures on various platforms.
* Copious refinements to the documentation.
Thanks to everyone who contributed to this version of libmongoc.
* A. Jesse Jiryu Davis
* Sujan Dutta
* Jason Carey
* Hannes Magnusson
* Jeremy Mikola
* Derick Rethans
* Samantha Ritter
* Yuchen Xie
* Lloyd Zhou
Peace,
A. Jesse Jiryu Davis
It is my pleasure to announce to you the MongoDB C driver 1.1.11.
This is a patch release with bug fixes:
* Undetected network errors when sending messages to the server
* Off-by-one error in mongoc_gridfs_file_seek with mode SEEK_END
* Memory leak parsing a URI that contains an invalid option
* The libbson submodule's URL now uses the recommended https://, not git://
Thanks to everyone who contributed to the development of this point release for
libmongoc.
* A. Jesse Jiryu Davis
* Hannes Magnusson
* Jason Carey
* Jose Sebastian Battig
* rubicks
Peace,
A. Jesse Jiryu Davis
mongo-c-driver 1.1.11
=====================
It is my pleasure to announce to you the MongoDB C driver 1.1.11.
This is a patch release with bug fixes:
* Undetected network errors when sending messages to the server
* Off-by-one error in mongoc_gridfs_file_seek with mode SEEK_END
* Memory leak parsing a URI that contains an invalid option
* The libbson submodule's URL now uses the recommended https://, not git://
Thanks to everyone who contributed to the development of this point release for
libmongoc.
* A. Jesse Jiryu Davis
* Hannes Magnusson
* Jason Carey
* Jose Sebastian Battig
* rubicks
Peace,
A. Jesse Jiryu Davis
mongo-c-driver 1.1.10
=====================
It is my pleasure to announce to you the MongoDB C driver 1.1.10.
This is a patch release with bug fixes:
* Occasional crash reconnecting to replica set.
* Queries sent to recovering replica set members.
* Memory leak when calling ismaster on replica set members.
Thanks to everyone who contributed to the development of this point release for
libmongoc.
* A. Jesse Jiryu Davis
* Daniil Zaitsev
* Jason Carey
* Jeremy Mikola
Peace,
A. Jesse Jiryu Davis
mongo-c-driver 1.1.9
====================
It is my pleasure to announce to you the MongoDB C driver 1.1.9.
This release fixes a common crash in 1.1.8, which itself was introduced while
fixing a rare crash in 1.1.7. For further details:
https://jira.mongodb.org/browse/CDRIVER-721
https://jira.mongodb.org/browse/CDRIVER-695
Thanks to everyone who contributed to the development of this point release for
libmongoc.
Peace,
A. Jesse Jiryu Davis
mongo-c-driver 1.1.8
====================
UPDATE: 1.1.8 suffered a severe new bug so I removed the release from GitHub:
https://jira.mongodb.org/browse/CDRIVER-721
This is a patch release with bug fixes:
* Crash freeing client after a replica set auth error.
* Compile error strict C89 mode.
mongo-c-driver 1.1.7
====================
It is my pleasure to announce to you the 1.1.7 release of the MongoDB C driver.
This is a patch release with bug fixes:
* Thread-safe use of Cyrus SASL library.
* Experimental support for building with CMake and SASL.
* Faster reconnection to replica set with some hosts down.
* Crash iterating a cursor after reconnecting to a replica set.
* Unchecked errors decoding invalid UTF-8 in MongoDB URIs.
* Fix error reporting from mongoc_client_get_database_names.
Thanks to everyone who contributed to the development of this point release for
libmongoc.
* A. Jesse Jiryu Davis
* Jason Carey
* Hannes Magnusson
Peace,
A. Jesse Jiryu Davis
mongo-c-driver 1.1.6
====================
It is my pleasure to announce to you the 1.1.6 release of the MongoDB C driver.
This is a patch release with performance enhancements and bug fixes:
* mongoc_bulk_operation_execute now coalesces consecutive update operations
into a single message to a MongoDB 2.6+ server, yielding huge performance
gains. Same for remove operations. (Inserts were always coalesced.)
* Large numbers of insert operations are now properly batched according to
number of documents and total data size.
* GSSAPI / Kerberos auth now works.
* The driver no longer tries three times in vain to reconnect to a primary,
so socketTimeoutMS and connectTimeoutMS now behave *closer* to what you
expect for replica sets with down members. A full fix awaits 1.2.0.
I snuck in a feature:
* mongoc_matcher_t now supports basic subdocument and array matching
Thanks to everyone who contributed to the development of this point release for
libmongoc.
* A. Jesse Jiryu Davis
* Jason Carey
* Kai Mast
* Matt Cotter
Peace,
A. Jesse Jiryu Davis
mongo-c-driver 1.1.5