---
title: "Tractor Spool Panel"
canonical: "https://rmanwiki-26.pixar.com/space/RFH26/183566356/Tractor%20Spool%20Panel"
format: markdown
---
![RfS_TractorSpool2.JPG](media://d48c95fd-4a6e-4afd-82c2-f1b1f2714a82)


Tractor distributes tasks to a farm of execution servers. It manages large queues of concurrent jobs from many users, enforcing dependencies and scheduling policies

You can access the Tractor Spool panel in Solaris by clicking on the + icon in any UI pane.


**Spool to**

Whether to spool to LocalQueue or a Tractor farm

**Render Node**

Choose which USD Render ROP node you wish to spool

**Render Threads**

The number of threads to use for rendering.  0 means to use all available threads.

**Engine Host**

The hostname of the machine running the Tractor Engine.

**Engine Port**

The port of where the Tractor Engine is listening.  The default is 80

**User**

The username of who is submitting the jobs.

**Paused**

Jobs will be spooled as paused when this option is selected.

**Delete Temp Files**

Delete all temp files needed for batch rendering

**Priority**

Priority of your job.

**Service**

Service keys for your job.

**Env Keys**

Multiple keys can be specified and should be space-separated.

These environment keys are recognized by LocalQueue and Tractor out of box:  
- prman-* (eg. prman-24.0)  
- rmantree=* (eg. rmantree=$RMANTREE)

**After**

Delay the start of job processing until a given time  
Format: MONTH/DAY HOUR:MINUTES 

For example : 11/24 13:45

**Crews**

List of crews.   
[See 'Crews' in the Tractor documentation.](https://rmanwiki-26.pixar.com/space/TRA/22184294/Crews)  
**Tier**

Dispatching tier that the job belongs to.   
[See Scheduling Modes' in the Tractor documentation.](https://rmanwiki-26.pixar.com/space/TRA/22184302/Scheduling+Modes)

**Projects**

Project that job belongs to.   
[See 'Limits Configuration' in the Tractor documentation](https://rmanwiki-26.pixar.com/space/TRA/22184308/Limits+Configuration).

**Comments**

Additional comment about the job

**Metadata**

Meta data to add to the job.

**When Done Command**

Command to run when job completes without error.

**When Always Command**

Command to run regardless if job completes with or without errors.