This saves a few bytes in the response size and make it easy
for memcached proxies to distinguish key fetches that are part
of check-and-set cycles from those that are not.
MediumSpecificBagOStuff now requires PASS_BY_REF to fetch CAS
tokens. BagOStuff::merge() and WinCacheBagOStuff::doCas() are
the only callers that need this mode.
Bug: T257003
Change-Id: If91963f58adc4cda94f6d634ee0252a479a0fc5e
Clean up the recursive DB dependency mitigation logic by having
ServiceContainer detect recursion and throw an appropriate error.
Catch the error and use EmptyBagOStuff in such cases. This works
better than checking getQoS() since that begs the question by
requiring the cache instance to begin with.
Also add support for using different LoadBalancer instances for
local and global keys in SqlBagOStuff. This makes it easier to
share keys between projects.
Bug: T229062
Change-Id: Ib8ec1845bcf1b86cbb3bededa0ca7621a0ca293a
Follows-up 746d67f5fc which implicitly caused the APCUBagOStuff
object to no longer have a wiki-dependent keyspace. This meant
that all cache keys were shared across wikis, even if they used
makeKey() instead of makeGlobalKey() because the keyspace was
not defined (e.g. it was the string "local" for all wikis, instead
of a string like "enwiki").
Bug: T247562
Change-Id: I469e107a54aae91b8782a4dd9a2f1390ab9df2e5
This was added in ce84590988e, and is no longer needed as
of 10dce13709.
Also remove the comment that announces deprecation/removal,
given newFromParams is used as callback in wgObjectCaches,
that might not be feasible. We can keep supporting it as an
optional parameter for now for uses in tests and for uses
outside configuration (e.g ServiceWiring), so that best
practices can be followed where they make sense, but still
allow bypass for config use case, since that would only ever
inject the One True Config object anyway.
Change-Id: I8cc4bfb1862b81df2c31fdc0886364b092636cc2
This bypasses the indirection of global wgObjectCaches config and
ObjectCache::newFromParams static methods, which don't do anything
in practice.
This solves the ExtensionRegistry use-case where it couldn't use
the service container, which in turn opens the path for
being able to deprecate absence of Config being passed to
ObjectCache::newFromParams(), which isn't possible right now because
ExtensionRegistry depended on being able to call it without that,
and that is a hard requirement because ExtensionRegistry isn't
allowed to use the service container.
Change-Id: Ic88da279662f33d3585cb2232358d6faf590b5b3
* Avoid direct $GLOBALS lookups.
* Avoid MediaWikiServices singleton for Config object.
Also given that newFromParams() constructs its Logger object
unconditionally as of I2aa835c5ec79, stop creating it ahead of
time in ServiceWiring.
This code, including the default loggroup value, was duplicated by
me from ObjectCache.php to ServiceWiring.php in commits 3828558140
and bd16c5eb34 because I needed to obtain the Logger object
in order to send a message to it about how it was created.
Solve this debt by letting ServiceWiring access the actual logger
that was created by newFromParams() through a new getLogger()
object.
Change-Id: Ib2de7b22f6c79db0c700fae06269d04fbe27831d
Apply the same duplication logging and asyncHandler defaults for
factory-based entries as constructor-based entries.
Change-Id: I2aa835c5ec7932432d2c739ffa761a7bd9c21198
Introduced in c387e5c with method `getSeparateMainLB()` and then
the method was removed in 99c80a8 and some uses of the member. But,
the declaration of class member above wasn't cleaned up.
Change-Id: Icfd382de782ec8793be4894c5aa06320a97689d0
This is not used anywhere. Once removed we can remove a bunch
more protected/private methods in this class that are all only
here still due to this one public method.
It was obsolete when the creation of WANObjectCache was
moved to ServiceWiring. In theory multiple instances can be
created but in the future that should be done by either constructing
the WANObjectCache directly where needed, or by implementing
it as a custom service.
Also deprecate ObjectCache::newWANCacheFromParams. This should
have been `@internal`, but oh well. Deprecate as well since
only needed by getWANInstance(). No longer used internally
either as of I118b6f01e4940.
Change-Id: Icc500e76c860c35ff40fdee47142c63091829dfe
This should be called in the non-LB cause (e.g. custom DBs).
Follow-up mishandled merge conflict in 3298a9db90.
Bug: T233117
Change-Id: I71a5c28db05a3c294e5c244037be2ee0209d61ad
And also update approximated counts, which for the most part are lower
than reported (hooray!)
Bug: T231636
Depends-On: Ica50297ec7c71a81ba2204f9763499da925067bd
Change-Id: I78354bf5f0c831108c8f606e50c87cf6bc00d8bd
Add HashBagOStuff fallback for APC in MWLBFactory::injectObjectCaches.
Also fix APC-cache variable typo in MWLBFactory.
Bug: T227838
Change-Id: I71cb2ca58972ea09ab2f64f7e47bda7a5096c19b
Make createTables() work for Postgres. Also add and use new
initSqliteDatabase() method for SQLite.
Also use ConvertibleTimestamp instead of wfTimestamp
Change-Id: I8e4505775e57fc6cd7380afa015fc0901a1bfc1b
Make the default $init value for incrWithInit() be $value.
This is far less suprising and also makes the operation
easier to replicate without conflicts.
Make decr() definitions more explicit since various cache
drivers do not handle negative incr() values (e.g. memcached).
Change-Id: I2b8d642656cc91c841abbd7a55d97eba101b027a
Add MediumSpecificBagOStuff::getValueOrSegmentList() helper method.
Also:
* Use $keysMissing variable correctly in CachedBagOStuff::getMulti()
to avoid extra overhead.
* Optimize mergeViaCas() when the current value matches the new one.
Change-Id: I5c4bd74379bc459216ac0278150ce3aecff3b851
Partly a follow-up to 88640fd902.
Use real time in changeTTL() tests to fix all remaining
failures for BagOStuff sub-classes.
Change-Id: I537d665d6c8770a68a5a79233a913f1714881dfb
Use real time for testing absolute expirations with changeTTL().
Otherwise, backends like memcached or redis will fail since
they do not use the mock time.
Also:
* Make SqlBagOStuff actually override changeTTLMulti() by
using the right method name
* Check TTL_INDEFINITE more explicitly for clarity
* Rename TTL conversion methods for clarity
* Use isRelativeExpiration() in MemcachedBagOStuff
Change-Id: I9365ceb31d4e7bef65906363d42b8c3020a66346
Add WANObjectCache::multiRemap() as an array_combine() wrapper for
easily working with IDs after getMultiWith(Union)SetCallback() calls.
Make the enforcement of uniqueness in makeMultiKeys() stricter and
discourage poor key design in comments. Add WANObjectCache::hash256()
method for getting good key component hashes.
Also avoid pointless use of ArrayIterator::getArrayCopy().
Change-Id: I61ffdbf4af4374864bac180df590b4dddc8da56b
