| CARVIEW |
Select Language
HTTP/2 200
date: Thu, 24 Jul 2025 21:09:23 GMT
content-type: text/html; charset=utf-8
vary: X-PJAX, X-PJAX-Container, Turbo-Visit, Turbo-Frame, X-Requested-With,Accept-Encoding, Accept, X-Requested-With
etag: W/"33f816def8fb265cd46f820f3eed053c"
cache-control: max-age=0, private, must-revalidate
strict-transport-security: max-age=31536000; includeSubdomains; preload
x-frame-options: deny
x-content-type-options: nosniff
x-xss-protection: 0
referrer-policy: no-referrer-when-downgrade
content-security-policy: default-src 'none'; base-uri 'self'; child-src github.githubassets.com github.com/assets-cdn/worker/ github.com/assets/ gist.github.com/assets-cdn/worker/; connect-src 'self' uploads.github.com www.githubstatus.com collector.github.com raw.githubusercontent.com api.github.com github-cloud.s3.amazonaws.com github-production-repository-file-5c1aeb.s3.amazonaws.com github-production-upload-manifest-file-7fdce7.s3.amazonaws.com github-production-user-asset-6210df.s3.amazonaws.com *.rel.tunnels.api.visualstudio.com wss://*.rel.tunnels.api.visualstudio.com objects-origin.githubusercontent.com copilot-proxy.githubusercontent.com proxy.individual.githubcopilot.com proxy.business.githubcopilot.com proxy.enterprise.githubcopilot.com *.actions.githubusercontent.com wss://*.actions.githubusercontent.com productionresultssa0.blob.core.windows.net/ productionresultssa1.blob.core.windows.net/ productionresultssa2.blob.core.windows.net/ productionresultssa3.blob.core.windows.net/ productionresultssa4.blob.core.windows.net/ productionresultssa5.blob.core.windows.net/ productionresultssa6.blob.core.windows.net/ productionresultssa7.blob.core.windows.net/ productionresultssa8.blob.core.windows.net/ productionresultssa9.blob.core.windows.net/ productionresultssa10.blob.core.windows.net/ productionresultssa11.blob.core.windows.net/ productionresultssa12.blob.core.windows.net/ productionresultssa13.blob.core.windows.net/ productionresultssa14.blob.core.windows.net/ productionresultssa15.blob.core.windows.net/ productionresultssa16.blob.core.windows.net/ productionresultssa17.blob.core.windows.net/ productionresultssa18.blob.core.windows.net/ productionresultssa19.blob.core.windows.net/ github-production-repository-image-32fea6.s3.amazonaws.com github-production-release-asset-2e65be.s3.amazonaws.com insights.github.com wss://alive.github.com api.githubcopilot.com api.individual.githubcopilot.com api.business.githubcopilot.com api.enterprise.githubcopilot.com; font-src github.githubassets.com; form-action 'self' github.com gist.github.com copilot-workspace.githubnext.com objects-origin.githubusercontent.com; frame-ancestors 'none'; frame-src viewscreen.githubusercontent.com notebooks.githubusercontent.com; img-src 'self' data: blob: github.githubassets.com media.githubusercontent.com camo.githubusercontent.com identicons.github.com avatars.githubusercontent.com private-avatars.githubusercontent.com github-cloud.s3.amazonaws.com objects.githubusercontent.com release-assets.githubusercontent.com secured-user-images.githubusercontent.com/ user-images.githubusercontent.com/ private-user-images.githubusercontent.com opengraph.githubassets.com copilotprodattachments.blob.core.windows.net/github-production-copilot-attachments/ github-production-user-asset-6210df.s3.amazonaws.com customer-stories-feed.github.com spotlights-feed.github.com objects-origin.githubusercontent.com *.githubusercontent.com; manifest-src 'self'; media-src github.com user-images.githubusercontent.com/ secured-user-images.githubusercontent.com/ private-user-images.githubusercontent.com github-production-user-asset-6210df.s3.amazonaws.com gist.github.com; script-src github.githubassets.com; style-src 'unsafe-inline' github.githubassets.com; upgrade-insecure-requests; worker-src github.githubassets.com github.com/assets-cdn/worker/ github.com/assets/ gist.github.com/assets-cdn/worker/
server: github.com
content-encoding: gzip
accept-ranges: bytes
set-cookie: _gh_sess=pRmFP5D27wmaMVhgZn%2Ff3KrdyZdAwU0qGPf4%2B2EvWixVORIc%2FUhs5ZGQMmoCxRQkVDSX77Ril4tJ00ufgamzLusvzRaCvMFOfVHwAj5SL98sni%2F4NO6YujyTNG1Y2%2BkFA0yOwShBa5haJAQJDYhFOZwF1uxp8VAw9BIXT6e%2FfhJtqJgRNQRBIiapRZprPZpoqBzF8Luu6cTV4Ws71LbnMoWVEVZPvJsSmFv2N0dinsWfJaKSKLOjIGRa36ntaYc0QqNqGPqt6G1KCaURmsyGXQ%3D%3D--6kwjP50bveATtCSn--L0ZFb63C461rGKxJjO4azA%3D%3D; Path=/; HttpOnly; Secure; SameSite=Lax
set-cookie: _octo=GH1.1.610091129.1753391363; Path=/; Domain=github.com; Expires=Fri, 24 Jul 2026 21:09:23 GMT; Secure; SameSite=Lax
set-cookie: logged_in=no; Path=/; Domain=github.com; Expires=Fri, 24 Jul 2026 21:09:23 GMT; HttpOnly; Secure; SameSite=Lax
x-github-request-id: CA04:3AC893:79FB7:A7BCE:6882A103
Migration Guide · Netflix/Hystrix Wiki · GitHub
Skip to content
Navigation Menu
{{ message }}
-
Notifications
You must be signed in to change notification settings - Fork 4.7k
Migration Guide
Matt Jacobs edited this page Mar 27, 2015
·
5 revisions
- Addition of HystrixObservableCommand. See #321 for full description of design
- Timeouts now apply to semaphore-isolated commands as well as thread-isolated commands. Before 1.4.x, semaphore-isolated commands could not timeout. They now have a timeout registered on another (HystrixTimer) thread, which triggers the timeout flow. If you use semaphore-isolated commands, they will now see timeouts. As all HystrixCommands have a default timeout, this potentially affects all semaphore-isolated commands.
- Timeouts now fire on
HystrixCommand.queue(), even if the caller never callsget()on the resulting Future. Before 1.4.x, only calls toget()triggered the timeout mechanism to take effect. - Execution hooks changed to more closely match the Observable model. The hooks from 1.3 still exist and still get invoked, but are now deprecated. See https://github.com/Netflix/Hystrix/issues/682 for all the details
- Execution Hooks that generate BadRequestExceptions now behave the same as if a command generated it (i.e. fallback/metrics are skipped)
- Addition of metrics
- command metrics for bad request, max concurrent requests, number of emissions, number of fallback emissions
- thread pool metrics for number of thread pool-rejections
- collapser metrics for number of commands collapsed, number of batches, size of batches, size of shards
- Added EMIT and FALLBACK_EMIT event types that will show up in the HystrixRequestLog for HystrixObservableCommands. These show how many items are in the streams of data produced by the commands
-
Upgraded to Java7(1.4.0/1.4.1/1.4.2 were built with Java 7, but 1.4.3+ rolled back to Java 6) - Upgraded to RxJava 1.0.x (1.0.7 currently)
A Netflix Original Production
Tech Blog | Twitter @NetflixOSS | Twitter @HystrixOSS | Jobs
You can’t perform that action at this time.