Oom heap or object store

In case of OOM error, I want to know if it’s heap or object store that is insufficient. In another words, if object store is not sufficient, will there be any OOM error? or some other kind of error msgs.

The object store by default uses up to a certain percentage of the node memory. After that, it spills to disk. Object store related operations will raise an error if the disk is filling up past a certain threshold.

https://docs.ray.io/en/latest/ray-core/objects/object-spilling.html#object-spilling

In short, the object store reduces the available heap memory, and the actor or task is the one that is likely to be OOM-killed

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