Performance Impact of deprecated graphql-extensions
#4889
Comments
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Are you saying that you actually see a notable performance improvement when you disable the graphql-extensions schema instrumentation with The newer plugin schema instrumentation code is pretty similar to the older extensions schema instrumentation code, so I'd be a little surprised if the impact of having both of them on is significantly worse than just having the newer instrumentation code on. Is the other whenResultIsFinished from apollo-server-core (that's the plugin one) and does it use a similar amount of time? I'm not sure exactly how to interpret the screenshot. Now that all the first-party extensions have been rewritten as plugins and we've added deprecation warnings for the use of extensions, I think we could avoid calling |
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Hey @glasser, thanks for the reply.
Apologies, I should have clarified a bit more. The In my tests, the
They both add some overhead. So doing that work 2x is always going to be more expensive than just once. |
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OK. So the complaint is less "the cost of instrumentation is so terrible that it makes getting value out of instrumentation not worth it for your app", and more "the cost of instrumentation is bad enough that we really should only do it once rather than twice"? That makes sense. Can you send a PR to make the enableGraphQLExtensions call conditional? |
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Hopefully my input came off more as friendly feedback than a complaint 😄 Apologies if it seemed otherwise! But yeah, it's definitely more of a request to do that kind of work once 👍 PR in #4893 |
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Sorry, I meant to say "concern"! This was a helpful issue. |
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Thanks for the quick help @glasser! |
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Released in v2.20.0. |
Bumps apollo-datasource from 0.7.2 to 0.7.3. Changelog Sourced from apollo-datasource's changelog. CHANGELOG The version headers in this history reflect the versions of Apollo Server itself. Versions of other packages (e.g., those which are not actual HTTP integrations; packages not prefixed with "apollo-server", or just supporting packages) may use different versions. 🆕 Please Note!: 🆕 The @apollo/federation and @apollo/gateway packages now live in the apollographql/federation repository. @apollo/gateway @apollo/federation vNEXT The changes noted within this vNEXT section have not been released yet. New PRs and commits which introduce changes should include an entry in this vNEXT section as part of their development. With few exceptions, the format of the entry should follow convention (i.e., prefix with package name, use markdown backtick formatting for package names and code, suffix with a link to the change-set à la [PR #YYY](https://link/pull/YYY), etc.). When a release is being prepared, a new header will be (manually) created below and the appropriate changes within that release will be moved into the new section. apollo-server-core: The SIGINT and SIGTERM signal handlers installed by default (when not disabled by stopOnTerminationSignals: false) now stay active (preventing process termination) while the server shuts down, instead of letting a second signal terminate the process. The handlers still re-signal the process after this.stop() concludes. Also, if this.stop() throws, the signal handlers will now log and exit 1 instead of throwing an uncaught exception. [Issue #4931](apollographql/apollo-server#4931) apollo-server-lambda: (UPDATE THIS MESSAGE BEFORE RELEASE; we are not sure if this actually helps nodejs14 compatibility or if it's just a nice refactor.) Support the nodejs14 runtime by changing the handler to be an async handler. (For backwards compatibility, if the handler receives a callback, it still acts like a non-async handler.) [Issue #1989](apollographql/apollo-server#1989) [PR #5004](apollographql/apollo-server#5004) v2.21.1 apollo-server-lambda: The onHealthCheck option did not previously work. Additionally, health checks (with onHealthCheck or without) didn't work in all Lambda contexts, such as behind Custom Domains; the path check is now more flexible. [Issue #3999](apollographql/apollo-server#3999) [PR #4969](apollographql/apollo-server#4969) [Issue #4891](apollographql/apollo-server#4891) [PR #4892](apollographql/apollo-server#4892) The debug option to new ApolloServer (which adds stack traces to errors) now affects errors that come from requests executed with server.executeOperation (and its wrapper apollo-server-testing), instead of just errors that come from requests executed over HTTP. [Issue #4107](apollographql/apollo-server#4107) [PR #4948](apollographql/apollo-server#4948) Bump version of @apollographql/graphql-playground-html to v1.6.27 and @apollographql/graphql-playground-react to v1.7.39 to resolve incorrectly rendered CDN URL when Playground version was false-y. [PR #4932](apollographql/apollo-server#4932) [PR #4955](apollographql/apollo-server#4955) [Issue #4937](apollographql/apollo-server#4937) v2.21.0 Apollo Server can now be installed with graphql@15 without causing peer dependency errors or warnings. (Apollo Server has a file upload feature which was implemented as a wrapper around the graphql-upload package. We have been unable to upgrade our dependency on that package due to backwards-incompatible changes in later versions, and the version we were stuck on did not allow graphql@15 as a peer dependency. We have now switched to a fork of that old version called @apollographql/graphql-upload-8-fork that allows graphql@15.) Also bump the graphql-tools dependency from 4.0.0 to 4.0.8 for graphql@15 support. [Issue #4865](apollographql/apollo-server#4865) v2.20.0 apollo-server: Previously, ApolloServer.stop() functioned like net.Server.close() in that it did not close idle connections or close active connections after a grace period. This meant that trying to await ApolloServer.stop() could hang indefinitely if there are open connections. Now, this method closes idle connections, and closes active connections after 10 seconds. The grace period can be adjusted by passing the new stopGracePeriodMillis option to new ApolloServer, or disabled by passing Infinity (though it will still close idle connections). Note that this only applies to the "batteries-included" ApolloServer in the apollo-server package with its own built-in Express and HTTP servers. [PR #4908](apollographql/apollo-server#4908) [Issue #4097](apollographql/apollo-server#4097) apollo-server-core: When used with ApolloGateway, ApolloServer.stop now invokes ApolloGateway.stop. (This makes sense because ApolloServer already invokes ApolloGateway.load which is what starts the behavior stopped by ApolloGateway.stop.) Note that @apollo/gateway 0.23 will expect to be stopped in order for natural program shutdown to occur. [PR #4907](apollographql/apollo-server#4907) [Issue #4428](apollographql/apollo-server#4428) apollo-server-core: Avoid instrumenting schemas for the old graphql-extensions library unless extensions are provided. [PR #4893](apollographql/apollo-server#4893) [Issue #4889](apollographql/apollo-server#4889) apollo-server-plugin-response-cache@0.6.0: The shouldReadFromCache and shouldWriteToCache hooks were always documented as returning ValueOrPromise<boolean> (ie, that they could be either sync or async), but they actually only worked if they returned a bool. Now they can be either sync or async as intended. [PR #4890](apollographql/apollo-server#4890) [Issue #4886](apollographql/apollo-server#4886) apollo-datasource-rest@0.10.0: The RESTDataSource.trace method is now protected instead of private to allow more control over logging and metrics. [PR #3940](apollographql/apollo-server#3940) v2.19.2 apollo-server-express: types: Export ExpressContext from main module. 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[PR #4599](apollograpqh/apollo-server#4599) apollo-server-lambda: Fix file uploads - ignore base64 decoding for multipart queries. [PR #4506](apollographql/apollo-server#4506) apollo-server-core: Do not send operation documents that cannot be executed to Apollo Studio. Instead, information about these operations will be combined into one "operation" for parse failures, one for validation failures, and one for unknown operation names. ... (truncated) Commits c212627 Release See full diff in compare view Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase. 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Profiling our Apollo Server setup, it looks like the deprecated
graphql-extensionspackage is eating up a significant amount of time. Specifically, thewhenResultIsFinishedhook seems to be dominating.I'm not seeing any warnings about deprecated extension usage during startup, so I was surprised to see the runtime cost of (
graphql-extensions) is substantial.Running tests locally, it seems like I can eliminate this cost entirely by adding a
_extensionsEnabledproperty to my schema before being passed to theApolloServerconstructor, and that seems to bypass all the extension hooks.If we're using Apollo Studio to capture and view metrics, are there any metrics we'll be missing by disabling extension support? As far as I can tell, all this functionality was migrated to the newer Plugin API a few months ago.
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