HDDS-5209. Datanode hasEnoughSpace check should apply on volume instead of global DN

[guihecheng]

What changes were proposed in this pull request?

When use placement policy to choose datanodes, we should check whether a datanode has a volume that
has enough space to hold the container, not check the space from all volumes together, because a container
could only be on a single volume not spread across volumes.

What is the link to the Apache JIRA

https://issues.apache.org/jira/browse/HDDS-5209

How was this patch tested?

extended existing ut.

[guihecheng]

Hi @ChenSammi please help review this one, I'll check the CI failures, not related at first glance, thanks~

[ChenSammi]

Hi @guihecheng , we have leverage the DatanodeInfo value. It seems there is no need to add new API in NodeManager. You can refer to these piece of codes,

final DatanodeInfo datanodeInfo = nodeStateManager
.getNode(datanodeDetails);
final List storageReportProtos = datanodeInfo
.getStorageReports();
for (StorageReportProto reportProto : storageReportProtos) {
capacity += reportProto.getCapacity();
used += reportProto.getScmUsed();
remaining += reportProto.getRemaining();
}

[guihecheng]

@ChenSammi ah, then I shall put the logic directly into hasEnoughSpace and avoid adding a new API, thanks~

[guihecheng]

@ChenSammi updated, thanks~
cc @bshashikant , please help review this since it can be related to datanode volume handling issues.

[ChenSammi]

+1. Thanks @guihecheng for the contribution.