|state|string|The allowed states are "Queued", "Locked", "Running", "Cancelled" and "Complete".|See "Container states":#container_states for more details.|
|started_at|datetime|When this container started running.|Null if container has not yet started.|
|finished_at|datetime|When this container finished.|Null if container has not yet finished.|
-|log|string|UUID or portable data hash of a collection containing the log messages produced when executing the container.|PDH after the container is finished, otherwise UUID or null.|
+|log|string|Portable data hash of a collection containing the log messages produced when executing the container.|Null if container has not yet started. The Crunch system will periodically update this field for a running container.|
|environment|hash|Environment variables and values that should be set in the container environment (@docker run --env@). This augments and (when conflicts exist) overrides environment variables given in the image's Dockerfile.|Must be equal to a ContainerRequest's environment in order to satisfy the ContainerRequest.|
|cwd|string|Initial working directory.|Must be equal to a ContainerRequest's cwd in order to satisfy the ContainerRequest|
|command|array of strings|Command to execute.| Must be equal to a ContainerRequest's command in order to satisfy the ContainerRequest.|
|interactive_session_started|boolean|Indicates whether @arvados-client shell@ has been used to run commands in the container, which may have altered the container's behavior and output.||
|output_storage_classes|array of strings|The storage classes that will be used for the log and output collections of this container||
|output_properties|hash|User metadata properties to set on the output collection.|
+|cost|number|Estimated cost of the cloud VM used to run the container.|0 if not available.|
+|subrequests_cost|number|Total estimated cumulative cost of container requests submitted by this container.|0 if not available.|
h2(#container_states). Container states
table(table table-bordered table-condensed).
-|_. State|_. Sgnificance|_. Allowed next|
+|_. State value|_. Description|_. Allowed next|
|Queued|Waiting for a dispatcher to lock it and try to run the container.|Locked, Cancelled|
|Locked|A dispatcher has "taken" the container and is allocating resources for it. The container has not started yet.|Queued, Running, Cancelled|
|Running|Resources have been allocated and the contained process has been started (or is about to start). Crunch-run _must_ set state to Running _before_ there is any possibility that user code will run in the container.|Complete, Cancelled|