This page lists known issues, limitations, and unsupported features in Cloud Run.
You can also check for existing issues or open new issues in the public issue trackers.
Select your problem category:
Or filter the known issues:
Category | Issue and workaround |
---|---|
Deployment |
Cloud Run job tasks might be spuriously marked as retried
In some situations, a task can be marked as retried, even when the task
succeeded on its first try. Until this issue is resolved, Google
recommends keeping the |
Deployment |
Volume Mounts are incompatible with Config ConnectorIf you deploy your Cloud Run service or job with Config Connector, your volume mounts won't be persisted next time you deploy. You may also experience issues using Config Connector with services or jobs that have volume mounts already applied. |
Serving |
|
Serving |
You can't mount secrets on
|
Serving |
High request latency with custom domains when invoking from some regions
Requests to Cloud Run services using custom domains might
have a very high latency from some locations.
This issue is more pronounced for Cloud Run services
in |
Serving |
Sometimes a request might be sent to instances before startup probe results are known
Cloud Run might use the request sent to the service endpoint to
start an instance. Before the startup probe results are known, Cloud Run might also assign the request to the instance. If the probe passes, then
the instance will process the request at the |
Connectivity and security |
Serverless VPC Access doesn't support IPv6
You can't use IPv6 when sending traffic through Serverless VPC Access connectors. IPv6 is supported when Direct VPC egress uses dual-stack subnets or when accessing non-VPC endpoints while |
Connectivity and security |
IP addresses not clearly identified when in use by serverless
When you use Direct VPC egress, you can identify IP addresses reserved
by Cloud Run that are currently in use, displayed as |
URL |
Reserved URL pathsYou can't use the following URL paths:
|
URL |
Some encoded URL characters are decoded
Cloud Run decodes some encoded characters in the Cloud Run services URL before reaching the container instance. For example, |
Unsupported services and features |
Unsupported servicesWeb Security Scanner |
Unsupported services and features |
HTTP/2 PushCloud Run supports HTTP/2, but not HTTP/2 Server Push. |
Unsupported services and features |
HTTP methods
Cloud Run doesn't support requests with HTTP methods like
|