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Host IDs
Mathew Charles edited this page Sep 30, 2021
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The Functions Host uses a Host ID to uniquely identify a particular Function App. By default, the ID is auto-generated from the Function App name.
If you have multiple Function Apps sharing a single storage account and they're each using the same Host ID, that will result in a collision. The HostID is used by the platform to store per-app correlated control/tracking information in the storage account. When multiple apps are using the same HostID (a collision), this can result incorrect behaviors. For example, some triggers like TimerTrigger/BlobTrigger store tracking info by HostID and can behave incorrectly when multiple apps use the same ID.
- Configuration Settings
- function.json
- host.json
- host.json (v2)
- Http Functions
- Function Runtime Versioning
- Official Functions developers guide
- Host Health Monitor
- Managing Connections
- Renaming a Function
- Retrieving information about the currently running function
- Site Extension Resolution
- Linux Consumption Regions
- Using LinuxFxVersion for Linux Function apps
- Out-of-proc Cancellation Tokens
- Assembly Resolution in Azure Functions
- ILogger
- Precompiled functions
- Official Functions C# developer reference
- Contributor Onboarding
- Development Process
- Deploying the Functions runtime as a private site extension
- Authoring & Testing Language Extensions
- Bindings in out-of-proc
- Language Extensibility
- Worker Capabilities
- Investigating and reporting issues with timer triggered functions not firing
- Sharing Your Function App name privately
- Azure Functions CLI release notes [moved here]
- Function App Zipped Deployment [deprecated]