Troubleshooting reservation creation

This page shows you how to resolve issues with creating reservations of Compute Engine zonal resources.

In addition to the errors on this page, reservation creation can also fail due to issues that happen when creating Compute Engine resources. If your issue is not listed on this page, you might find the error by trying to create VMs with the resources that you want to reserve and reviewing the Troubleshooting VM creation page.

Reservation creation errors

If you can't create a reservation, it might be due to one of the errors in this section. If you can't create a shared reservation, also review Shared reservation creation errors.

Insufficient quota

A quota error occurs when a resource request exceeds your quota.

Error messages:

RESOURCE_NAME creation failed:
Quota QUOTA_NAME exceeded. Limit: QUOTA_LIMIT in region REGION

RESOURCE_NAME creation failed:
Quota QUOTA_NAME exceeded. Limit: QUOTA_LIMIT in zone ZONE

Resource exhausted (HTTP 429): QUOTA_EXCEEDED

Resolution: Request a higher quota limit. For more information, see Requesting an increase in quota.

Resource availability

To create a reservation, all the resources you specify in the reservation must be available in the specified in order for them to be reserved for you.

The following are examples of common resource errors that you might encounter when you request new Compute Engine resources or create new reservations:

ZONE_RESOURCE_POOL_EXHAUSTED

ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS

The zone 'projects/PROJECT_ID/zones/ZONE' does not have enough resources available to fulfill the request.
Try a different zone, or try again later.

A VM_TYPE_AND_SIZE VM instance with RESOURCE_ATTACHMENT is currently unavailable in the ZONE zone.

Capacity changes frequently, so try your request in a different zone, with a different VM hardware
configuration, or at a later time. For more options, see troubleshooting documentation.

A VM_TYPE_AND_SIZE VM instance with RESOURCE_ATTACHMENT is currently unavailable in the ZONE zone, because of  REASON.

Consider trying your request in the ZONE zone(s), which currently has capacity to accommodate your request.

If you cannot move your VM to ZONE, review the REASON failure resolution instructions available in troubleshooting documentation, then try your request again.
If your workload can't accommodate the suggested resolution, try your request with a different VM hardware configuration or at a later time.

To learn how to resolve resource errors, see Troubleshooting resource availability errors.

Zone availability

If you receive a notFound or does not exist in zone error when requesting new resources, it means that the zone you are requesting the resource in does not offer the resource or machine type that you have requested.

Error messages:

notFound

does not exist in zone

Resolution: See Regions and zones to find out which features are available in each zone.

Resource name

If you receive a resource already exists error when you try to create a resource, your creation request failed because you specified a non-unique name for the resource for the specified location and project.

Error messages:

The resource 'projects/PROJECT_NAME/zones/ZONE/RESOURCE_TYPE/RESOURCE_NAME' already exists"

The resource 'projects/PROJECT_NAME/regions/REGION/RESOURCE_TYPE/RESOURCE_NAME' already exists"

Resolution: Retry your creation request with a unique resource name.

Maximum VM count exceeded

The following error occurs when you try to create a reservation for more than 1000 VMs.

Error message:

Invalid value for field 'resource.specificReservation.count': VM_COUNT. Must be less than or equal to 1000

Where VM_COUNT is the number of VMs in a reservation.

Resolution: Create multiple reservations with the same zone, project, and VM properties as this reservation, but reduce the number of VMs you want to reserve to up to 1000 VMs for each reservation.

Shared reservation creation errors

If you can't create a shared reservation, it might be due to one of the errors in this section or in Reservation creation errors.

Project without an organization

The following error occurs when you try to create a shared reservation in a project that does not belong to an organization.

Error message:

Cannot create Shared Reservations in a project that does not belong to an organization.

Resolution: Do one of the following:

Migrate this project to an organization before using it to create a shared reservation.
Create a shared reservation using a project that belongs to an organization.

Constraint violation

The following error occurs when the Shared Reservations Owner Projects (compute.sharedReservationsOwnerProjects) organization policy constraint does not allow a project to create and modify shared reservations.

Error message:

Constraint constraints/compute.sharedReservationsOwnerProjects violated for project projects/PROJECT_NUMBER
Shared reservation can not be created in this project for your organization.

Resolution: Do one of the following:

Use a project that is allowed to create and modify shared reservations. To see which projects in your organization have this permission, view the shared reservations organization policy constraint.
Grant the project permission to create and modify shared reservations by editing the shared reservations organization policy constraint. If you continue to see this error after editing, you might just need to wait a few minutes for the edit to take effect.

Invalid consumer projects

This section describes errors that occur when you specify invalid consumer projects for a shared reservation.

Project not found in this organization

The following error occurs when the consumer project you specified cannot be found in the same organization as the project you are currently using.

Error message:

Project PROJECT_ID doesn't exist or doesn't belong to the same organization of the current project.

Where PROJECT_ID is a project ID that you specified as a consumer project.

Resolution: Do the following:

View all the projects in the organization to verify that the specified consumer project exists in this organization.
View the project to verify that you specified its project ID, PROJECT_ID, correctly.

Owner project specified as a consumer project

The following error occurs when you try to specify a shared reservation's owner project (the project used to create the shared reservation) as a consumer project.

Error message:

Project PROJECT_ID which is the owner project of this reservation is always included in the share projects, please do not add it.

Resolution: Remove the owner project from the list of consumer projects. A shared reservation can always be consumed by VMs in the owner project, so you cannot include it in the list of consumer projects.

Zero consumer projects

The following error occurs when a shared reservation has zero consumer projects:

Error message:

Have to share with at least 1 project.

Resolution: Do one of the following:

Specify at least one consumer project to share this reservation with. For more information, see Create a shared reservation.
Use a single-project reservation instead of a shared reservation.

Maximum consumer projects exceeded

The following error occurs when a shared reservation has more than 100 consumer projects:

Error message:

Can only share with at most 100 projects.

Resolution: Do the following:

Reduce the number of consumer projects to, at most, 100 consumer projects for the shared reservation.
If you still need to reserve capacity for any omitted projects, create another shared reservation that is shared with those projects.

Maximum shared reservation count exceeded

The following error occurs when your organization already has 100 shared reservations with the same VM properties.

Error message:

Cannot support more than 100 shared reservations of the same shape under an organization.

Resolution: Follow the best practice of minimizing the number of separate shared reservations with the same VM properties in your organization by doing the following:

Resize existing reservations to have larger VM counts. If you have multiple identical shared reservations that do not exceed the maximum VM count, then consider if you can combine them into fewer shared reservations with the same combined VM count.
Modify the consumer projects for a shared reservation to include more projects. For example, if you have multiple shared reservations with the same VM properties and zone but similar owner and consumer projects, consider if you can combine them into one shared reservation that can be consumed by all of these projects.
Delete shared reservations that you no longer need.

Reservations from instance templates creation errors

If you fail to create a reservation by specifying an instance template, it might be due to one of the errors in this section.

Cross project referencing is not allowed

The following error occurs when you try to create a reservation by specifying an instance template from another project.

Error message:

Cross project referencing is not allowed for this resource.

Resolution: Do the following:

Make sure that the project ID and instance template's name you specify in your reservation are correct. To check that an instance template exists, get information about the template or list the template.
An instance template contains project-specific settings, so you can only access and use an instance template within the same project. Instead, do one of the following:
- To create a reservation by specifying an instance template:
  1. Create a new instance template within your project.
  2. Specify the newly created instance template when creating a single-project or shared reservation.
    
    Caution: Create your reservation in the same region and zone as the resources within the instance template. Any regional or zonal resources that are specified in an instance template—such as a machine type or a disk—restrict the use of the template to the locations where those resources exist. For example, if your instance template specifies an existing disk in us-central1-a zone, then you must create your reservation in the same zone. Otherwise, creating the reservation or the VMs that can consume the reservation fails.
    To check if an existing template specifies any resources that bind the template to a specific region or zone, get information about the instance template and look for references to regional or zonal resources inside of it.
- To create a reservation without specifying an instance template, create a single-project or shared reservation by specifying VM properties directly.

Instance template not found

The following error occurs when you try to create a reservation by specifying an instance template that doesn't exist.

Error message:

Source resource reference provided invalid.

Resolution: Check if the name of the instance template you specified is correct. Then—after you list instance templates to check that your template doesn't exist and only if your project doesn't have another template that you want to use—you can create a new instance template.

Invalid zone for an instance template

The following error occurs when you try to create a reservation by specifying an instance template, and you specify an invalid location for your instance template.

Error message:

Reservation cannot be created outside the zone/region of source resource.

Resolution: Do one of the following:

Make sure to create your reservation in the same region and zone as the resources within the instance template. Any regional or zonal resources that are specified in an instance template—such as a machine type or a disk—restrict the use of the template to the locations where those resources exist. For example, if your instance template specifies an existing disk in the us-central1-a zone, then you must create your reservation in the same zone. Otherwise, creating the reservation or the VMs that can consume the reservation fails.

To check if an existing template specifies any resources that bind the template to a specific region or zone, get information about the template and look for references to regional or zonal resources inside of it.
Use an instance template that doesn't restrict to a specific region or zone. Because you can't update instance templates, do the following:
1. Create a new instance template based on an existing template with the updated properties.
2. Create a single-project or shared reservation by specifying the newly created instance template.
3. Optional: Delete the older instance template.

Override instance template properties

The following error occurs when you try to create a reservation by specifying an instance template, and you specify both an instance template and VM properties when creating the reservation.

Error message:

Reservation cannot override properties populated by source resource.

Resolution: Do one of the following:

To create a reservation by specifying an instance template, make sure to remove any field that specifies VM properties.
To create a reservation by specifying an instance template with different VM properties, do the following:
1. You can't update an existing instance template. Instead, create a new instance template based on an existing template.
2. Specify the newly created instance template when creating a single-project or shared reservation.
  
  Caution: Create your reservation in the same region and zone as the resources within the instance template. Any regional or zonal resources that are specified in an instance template—such as a machine type or a disk—restrict the use of the template to the locations where those resources exist. For example, if your instance template specifies an existing disk in the us-central1-a zone, then you must create your reservation in the same zone. Otherwise, creating the reservation or the VMs that can consume the reservation fails.
  To check if an existing template specifies any resources that bind the template to a specific region or zone, describe the instance template and look for references to regional or zonal resources inside of it.
3. Optional: Delete the older instance template.
To create a reservation without specifying an instance template, create instead a single-project or shared reservation by specifying VM properties directly.

Reservations with compact placement policies creation errors

If you fail to create a reservation by specifying a compact placement policy, it might be due to one of the errors in this section.

A compact placement policy is already specified in another reservation

The following error occurs when you try to create a reservation by specifying a compact placement policy, and the compact placement policy is already specified in another reservation.

Error message:

Placement policy has been used by another reservation.

Resolution: You can use one compact placement policy only per reservation. You can't share compact placement policies across reservations. If you want to use a similar compact placement policy for another reservation, select one of the following methods:

To create a reservation by specifying an instance template that includes a compact placement policy, follow these steps:
1. Create a new compact placement policy.
2. Create a new instance template by specifying the newly created compact placement policy.
  
  Important: Placement policies are regional resources. If you specify a placement policy when creating an instance template, the policy restricts the use of the template to the region where the policy exists. For example, if you create a compact placement policy in us-central1, you can only use the template to create VMs or reservations within the same region. Otherwise, you encounter issues.
3. Create a reservation by specifying the newly created instance template.
4. Optional: Delete the older instance template.
To create a reservation by specifying VM properties and a compact placement policy directly, follow these steps:
1. Create a new compact placement policy.
2. Create a reservation by specifying the new compact placement policy directly.

Attempt to create an automatically consumed reservation

The following error occurs when you try to create an automatically consumed reservation and specify a compact placement policy.

Placement policy only supports specific reservations.

Resolution: You can only specify a compact placement policy when creating a specifically targeted reservation.

Attempt to create a shared reservation

The following error occurs when you try to create a shared reservation by specifying a compact placement policy.

Error message:

Creating shared reservations with placement policy is not supported.

Resolution: You can specify a compact placement policy only for single-project reservations. Thus, create a new reservation and a new compact placement policy for each project you wanted to initially share your shared reservation with.

Attempt to specify a spread placement policy

The following error occurs when you try to specify a spread placement policy in a reservation.

Error message:

Only compact placement policy is allowed with reservation.

Resolution: When creating a reservation, you can only specify a compact placement policy. Spread placement policies aren't supported.

Invalid type of resource policy

The following error occurs when you try to create a reservation by specifying another type of resource policy.

Error message:

Reservation can only be supported by placement policy.

Resolution: When creating a reservation, you can only specify a compact placement policy. Other types of resource policies, such as instance schedules or snapshots schedules, aren't supported.

Invalid zone for the compact placement policy

The following error occurs when you try to specify a compact placement policy in a reservation, and you specify a zone which isn't within the region of the specified compact placement policy.

Error message:

ZONE does not match placement policy region.

Where ZONE is the zone where you tried to reserve VMs.

Resolution: Try one of the following:

Make sure that your zone is within the same region of the compact placement policy you specify in a reservation or a reservation's instance template.
You can't update compact placement policies. Instead, do the following:
1. Create a new compact placement policy with the updated properties.
2. Select one of the following methods:
  - Create a new reservation by specifying properties directly, and specify the newly created compact placement policy.
  - Do the following:
    1. You can't update instance templates. Instead, create a new instance template by specifying the newly created compact placement policy.
      
      Important: Placement policies are regional resources. If you specify a placement policy when creating an instance template, the policy restricts the use of the template to the region where it exists. For example, if you create a compact placement policy in us-central1, you can only use the template to create VMs or reservations within the same region. Otherwise, you encounter issues.
    2. Create a new reservation by specifying the newly created instance template.
    3. Optional: Delete the older instance template.
3. Optional: Delete the older compact placement policy.

Maximum VM count exceeded for compact placement policies

The following error occurs when you try to create a reservation by specifying a compact placement policy, and you want to reserve more than 150 VMs.

Error message:

No more than 150 of instances can be created with this policy.

Resolution: Try one of the following:

When creating a reservation by specifying a compact placement policy, make sure to reserve no more than 150 VMs.
To reserve more VMs, create multiple reservations with the same zone, project, and properties as this reservation, but reduce the number of VMs you want to reserve up to 150 VMs for each reservation. Because a compact placement policy can't be shared across reservations, you must create a new compact placement policy for every new reservation you want to create.

Override a reservation's compact placement policy

The following error occurs when you try to create a reservation by specifying an instance template that includes a compact placement policy, and you specify both the template and the compact placement policy when creating the reservation.

Error message:

Setting resource policy in both reservation and instance template is not allowed.

Resolution: Do one of the following:

When creating a reservation by specifying an instance template, make sure to remove the field to specify resource policies.
To create a reservation by specifying an instance template with a different compact placement policy, do the following:
1. You can't update compact placement policies. Instead, create a new compact placement policy.
2. You can't update instance templates. Instead, create a new instance template by specifying the newly created compact placement policy.
  
  Important: Placement policies are regional resources. If you specify a placement policy when creating an instance template, the policy restricts the use of the template to the region where the policy exists. For example, if you create a compact placement policy in us-central1, you can only use the template to create VMs or reservations within the same region. Otherwise, you encounter issues.
3. Create a reservation by specifying the newly created instance template.
4. Optional: Delete the older instance template.
5. Optional: Delete the older compact placement policy.
Create a reservation by specifying properties and a compact placement policy directly.

Specified a compact placement policy with a fixed number VMs

The following error occurs when you try to create a reservation by specifying a compact placement policy with a fixed number of VMs.

Error message:

Only incremental placement policy is allowed with reservation.

Resolution: When creating a compact placement policy, make sure to remove the field to specify a fixed number of VMs.

Unspecified placement policy

The following error occurs when you try to create a reservation by specifying an unspecified placement policy.

Error message:

Only incremental placement policy is allowed with reservation.

Resolution: When creating a reservation, you can only specify a compact placement policy.

Unsupported machine type for compact placement policies

The following error occurs when you try to create a reservation by specifying an invalid machine type for compact placement policies.

Error message:

Placement policy with reservation is not applicable to machine type MACHINE_TYPE.

Where MACHINE_TYPE is the machine type you tried to specify when creating a reservation.

Resolution: When creating a reservation that specifies a compact placement policy, make sure to specify a supported machine type for compact placement policies.