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server: fine tune cron triggers behaviour in replace metadata API call
https://github.com/hasura/graphql-engine-mono/pull/1991 GitOrigin-RevId: 7eb7d7b20d0a03eda7829d3a17a35dffe0f7bf1a
This commit is contained in:
Karthikeyan Chinnakonda
hasura-bot
parent
121afe39fe
commit
2f71e2e7c9
@ -3,6 +3,7 @@
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## Next release
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(Add entries below in the order of server, console, cli, docs, others)
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- server: preserve unchanged cron triggers in `replace_metadata` API
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- server: fix inherited roles bug where mutations were not accessible when inherited roles was enabled
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- server: reintroduce the unique name constraint in allowed lists
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- server: fix http-log bug where batches with only one request emitted the parameterised query hash as a string instead of in a singleton array
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@ -2,15 +2,16 @@ module Data.HashMap.Strict.InsOrd.Extended
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( module OMap
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, groupTuples
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, groupListWith
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, partition
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) where
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import Data.HashMap.Strict.InsOrd as OMap
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import qualified Data.Sequence.NonEmpty as NE
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import qualified Data.List as L
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import qualified Data.Sequence.NonEmpty as NE
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import Data.Hashable (Hashable)
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import Prelude (Eq, Foldable, Functor, flip, fmap, ($), (<>))
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import Prelude
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groupTuples
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:: (Eq k, Hashable k, Foldable t)
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@ -26,3 +27,12 @@ groupListWith
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=> (v -> k) -> t v -> OMap.InsOrdHashMap k (NE.NESeq v)
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groupListWith f l =
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groupTuples $ fmap (\v -> (f v, v)) l
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partition :: (Eq k, Hashable k) => (v -> Bool) -> OMap.InsOrdHashMap k v -> (OMap.InsOrdHashMap k v, OMap.InsOrdHashMap k v)
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partition predicate =
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OMap.foldlWithKey'
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(\(left, right) key val ->
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if (predicate val)
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then (OMap.insert key val left, right)
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else (left, OMap.insert key val right))
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(mempty, mempty)
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@ -19,18 +19,19 @@ module Hasura.RQL.DDL.Metadata
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import Hasura.Prelude
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import qualified Data.Aeson.Ordered as AO
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import qualified Data.HashMap.Strict.InsOrd as OMap
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import qualified Data.HashSet as HS
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import qualified Data.List as L
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import qualified Data.Aeson.Ordered as AO
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import qualified Data.HashMap.Strict as Map
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import qualified Data.HashMap.Strict.InsOrd.Extended as OMap
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import qualified Data.HashSet as HS
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import qualified Data.List as L
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import Control.Lens ((.~), (^?))
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import Control.Lens ((.~), (^?))
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import Data.Aeson
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import Data.Text.Extended ((<<>))
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import Data.Text.Extended ((<<>))
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import qualified Hasura.SQL.AnyBackend as AB
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import qualified Hasura.SQL.AnyBackend as AB
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import Hasura.Backends.Postgres.DDL.Table (delTriggerQ)
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import Hasura.Backends.Postgres.DDL.Table (delTriggerQ)
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import Hasura.Metadata.Class
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import Hasura.RQL.DDL.Action
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import Hasura.RQL.DDL.ComputedField
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@ -49,7 +50,7 @@ import Hasura.Base.Error
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import Hasura.EncJSON
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import Hasura.RQL.DDL.Metadata.Types
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import Hasura.RQL.Types
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import Hasura.Server.Types (ExperimentalFeature (..))
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import Hasura.Server.Types (ExperimentalFeature (..))
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runClearMetadata
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@ -149,28 +150,11 @@ runReplaceMetadataV2 ReplaceMetadataV2{..} = do
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RMWithoutSources _ -> emptyQueryTagsConfig
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oldMetadata <- getMetadata
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let (oldCronTriggersIncludedInMetadata, oldCronTriggersNotIncludedInMetadata) =
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(OMap.filter ctIncludeInMetadata (_metaCronTriggers oldMetadata)
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,OMap.filter (not . ctIncludeInMetadata) (_metaCronTriggers oldMetadata))
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newCronTriggers =
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case _rmv2Metadata of
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RMWithoutSources m -> _mnsCronTriggers m
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RMWithSources m -> _metaCronTriggers m
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dropFutureCronEvents $ MetadataCronTriggers $ OMap.keys oldCronTriggersIncludedInMetadata
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cronTriggers <- do
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-- traverse over the new cron triggers and check if any of them
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-- already exists as a cron trigger with "included_in_metadata: false"
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for_ newCronTriggers $ \ct ->
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when (ctName ct `OMap.member` oldCronTriggersNotIncludedInMetadata) $
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throw400 AlreadyExists $
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"cron trigger with name "
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<> ctName ct
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<<> " already exists as a cron trigger with \"included_in_metadata\" as false"
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-- we add the old cron triggers with included_in_metadata set to false with the
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-- newly added cron triggers
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pure $ newCronTriggers <> oldCronTriggersNotIncludedInMetadata
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(cronTriggersMetadata, cronTriggersToBeAdded) <- processCronTriggers oldMetadata
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metadata <- case _rmv2Metadata of
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RMWithSources m -> pure $ m { _metaCronTriggers = cronTriggers }
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RMWithSources m -> pure $ m { _metaCronTriggers = cronTriggersMetadata }
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RMWithoutSources MetadataNoSources{..} -> do
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let maybeDefaultSourceMetadata = oldMetadata ^? metaSources.ix defaultSource.toSourceMetadata
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defaultSourceMetadata <- onNothing maybeDefaultSourceMetadata $
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@ -181,7 +165,7 @@ runReplaceMetadataV2 ReplaceMetadataV2{..} = do
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}
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pure $ Metadata (OMap.singleton defaultSource newDefaultSourceMetadata)
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_mnsRemoteSchemas _mnsQueryCollections _mnsAllowlist
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_mnsCustomTypes _mnsActions cronTriggers (_metaRestEndpoints oldMetadata)
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_mnsCustomTypes _mnsActions cronTriggersMetadata (_metaRestEndpoints oldMetadata)
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emptyApiLimit emptyMetricsConfig mempty introspectionDisabledRoles queryTagsConfig
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putMetadata metadata
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@ -192,7 +176,7 @@ runReplaceMetadataV2 ReplaceMetadataV2{..} = do
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buildSchemaCacheStrict
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-- populate future cron events for all the new cron triggers that are imported
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for_ newCronTriggers $ \CronTriggerMetadata {..} ->
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for_ cronTriggersToBeAdded $ \CronTriggerMetadata {..} ->
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populateInitialCronTriggerEvents ctSchedule ctName
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-- See Note [Clear postgres schema for dropped triggers]
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@ -203,6 +187,62 @@ runReplaceMetadataV2 ReplaceMetadataV2{..} = do
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getOnlyPGSources :: Metadata -> InsOrdHashMap SourceName (SourceMetadata ('Postgres 'Vanilla))
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getOnlyPGSources = OMap.mapMaybe AB.unpackAnyBackend . _metaSources
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{- Note [Cron triggers behaviour with replace metadata]
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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When the metadata is replaced, we delete only the cron triggers
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that were deleted, instead of deleting all the old cron triggers (which
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existed in the metadata before it was replaced) and inserting all the
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new cron triggers. This is done this way, because when a cron trigger is
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dropped, the cron events associated with it will also be dropped from the DB
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and when a new cron trigger is added, new cron events are generated by the
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graphql-engine. So, this way we only delete and insert the data which has been changed.
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The cron triggers that were deleted is calculated by getting a diff
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of the old cron triggers and the new cron triggers. Note that we don't just
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check the name of the trigger to calculate the diff, the whole cron trigger
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definition is considered in the calculation.
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Note: Only cron triggers with `include_in_metadata` set to `true` can be updated/deleted
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via the replace metadata API. Cron triggers with `include_in_metadata` can only be modified
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via the `create_cron_trigger` and `delete_cron_trigger` APIs.
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-}
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processCronTriggers oldMetadata = do
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let (oldCronTriggersIncludedInMetadata, oldCronTriggersNotIncludedInMetadata) =
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OMap.partition ctIncludeInMetadata (_metaCronTriggers oldMetadata)
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allNewCronTriggers =
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case _rmv2Metadata of
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RMWithoutSources m -> _mnsCronTriggers m
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RMWithSources m -> _metaCronTriggers m
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-- this function is intended to use with `Map.differenceWith`, it's used when two
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-- equal keys are encountered, then the values are compared to calculate the diff.
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-- see https://hackage.haskell.org/package/unordered-containers-0.2.14.0/docs/Data-HashMap-Internal.html#v:differenceWith
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leftIfDifferent l r
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| l == r = Nothing
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| otherwise = Just l
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cronTriggersToBeAdded = Map.differenceWith leftIfDifferent
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(OMap.toHashMap allNewCronTriggers)
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(OMap.toHashMap oldCronTriggersIncludedInMetadata)
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cronTriggersToBeDropped = Map.differenceWith leftIfDifferent
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(OMap.toHashMap oldCronTriggersIncludedInMetadata)
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(OMap.toHashMap allNewCronTriggers)
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dropFutureCronEvents $ MetadataCronTriggers $ Map.keys cronTriggersToBeDropped
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cronTriggers <- do
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-- traverse over the new cron triggers and check if any of them
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-- already exists as a cron trigger with "included_in_metadata: false"
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for_ allNewCronTriggers $ \ct ->
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when (ctName ct `OMap.member` oldCronTriggersNotIncludedInMetadata) $
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throw400 AlreadyExists $
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"cron trigger with name "
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<> ctName ct
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<<> " already exists as a cron trigger with \"included_in_metadata\" as false"
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-- we add the old cron triggers with included_in_metadata set to false with the
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-- newly added cron triggers
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pure $ allNewCronTriggers <> oldCronTriggersNotIncludedInMetadata
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pure $ (cronTriggers, cronTriggersToBeAdded)
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dropPostgresTriggers
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:: InsOrdHashMap SourceName (SourceMetadata ('Postgres 'Vanilla)) -- ^ old pg sources
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-> InsOrdHashMap SourceName (SourceMetadata ('Postgres 'Vanilla)) -- ^ new pg sources
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