Neil Conway created MESOS-3961:
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Summary: Consider equality behavior for DiskInfo resource
Key: MESOS-3961
URL: https://issues.apache.org/jira/browse/MESOS-3961
Project: Mesos
Issue Type: Bug
Reporter: Neil Conway
Priority: Minor
Relevant code:
{code}
bool operator==(const Resource::DiskInfo& left, const Resource::DiskInfo& right)
{
// NOTE: We ignore 'volume' inside DiskInfo when doing comparison
// because it describes how this resource will be used which has
// nothing to do with the Resource object itself. A framework can
// use this resource and specify different 'volume' every time it
// uses it.
if (left.has_persistence() != right.has_persistence()) {
return false;
}
if (left.has_persistence()) {
return left.persistence().id() == right.persistence().id();
}
return true;
}
{code}
A consequence of this behavior is that if you pass the wrong path to a
`destroy-volume` request (but there is a persistent volume that otherwise
matches the request), the path will be ignored and the volume will be
destroyed. Not clear if that is undesirable, but it does seem surprising.
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