Due to some changes in Redis 5 php extension Moodle fails to connect via TCP when
no port is set. It's fixed upstream in phpredis repo (version 5.0.0, 5.0.1 and
5.0.2 affected so far), but with this patch we'll send the right port anyway.
The connection to the MongoDB server is checked on the creation and
deletion of a cache store instance. If the connection fails during
creation, the instance is set as not ready. Before deleting a instance,
a new cachestore_mongodb object is created, and connection checked.
There is no reason to check again the connection in the instance_deleted() method.
The scope of this change is limited to modifying the MongoDB cache
plugin to use the new version of the driver that accepts PHP 7.x
versions. Following the instructions in the official MongoDB
documentation, https://docs.mongodb.com/php-library/current/, the
MongoDB PHP Library was included and used.
The new mongodb extension provides a limited API. The MongoDB PHP adds a
high level abstraction layer that provides methods for CRUD operations
and common commands. This version of MongoDB PHP Library requires
the PHP mongodb extension >= 1.5.
Significant string changes:
* withselectedusers_help, core - removing mention of 'Add a common note'
as the option no longer exists
* considereddigitalminor and digitalminor_desc, core - more
child-friendly wording
* configmessagingallusers, core_admin - clearer explanation
* auth_dbtype, auth_db - fixed broken link
If the store is shared and the getAllKeys function is broken due to an
incompatability between libmemcached and memcached >= 1.4.23, then it is
not possible to purge the cache, and we cannot support the plugin.
This patch adjusts the isready check to additionally check if the
combination of libmemcached and memcached is affected by this issue.
This unit test is not really verifying that internally igbinary
in being used but just igbinary availability and, by double
serializing, that it works for a semi-complex object.
The test will be skipped if igbinary is not available.
purge_all() and purge_by_definition() look in the configuration
for which caches are available and then creates them to purge them.
The configuration stores the values used by initialise(), not
initialise_unit_test_instance() and would therefore fail to purge
all caches if they were not purged by another means.
In the case of filestore, it's purged by unit tests, in the case
of memcache(d), it purges the whole store when a single definition
is requested.
Therefore all configuration was moved into the configuration file
during unit tests and does not have any special override codes in
the unit test infrastructure.
This code was originally taken from; https://github.com/durana/moodle-cachestore_redis
Special thanks to Mark Nielsen and Adam Durana for their work on this.
Since the original import;
- Mode session support has been added.
- Some cleanup of names has been made.
- Data guarantee and references support was added.
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