Hexiaoqiao commented on code in PR #5715:
URL: https://github.com/apache/hadoop/pull/5715#discussion_r1222377990
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hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/balancer/BalancingPolicy.java:
##########
@@ -104,21 +104,21 @@ void accumulateSpaces(DatanodeStorageReport r) {
for(StorageReport s : r.getStorageReports()) {
final StorageType t = s.getStorage().getStorageType();
totalCapacities.add(t, s.getCapacity());
- totalUsedSpaces.add(t, s.getDfsUsed());
+ totalUsedSpaces.add(t, (s.getCapacity() - s.getRemaining()));
Review Comment:
It was not necessary to involve extra outer brackets here.
`totalUsedSpaces.add(t, (s.getCapacity() - s.getRemaining()));` ->
`totalUsedSpaces.add(t, s.getCapacity() - s.getRemaining());`
##########
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/balancer/BalancingPolicy.java:
##########
@@ -104,21 +104,21 @@ void accumulateSpaces(DatanodeStorageReport r) {
for(StorageReport s : r.getStorageReports()) {
final StorageType t = s.getStorage().getStorageType();
totalCapacities.add(t, s.getCapacity());
- totalUsedSpaces.add(t, s.getDfsUsed());
+ totalUsedSpaces.add(t, (s.getCapacity() - s.getRemaining()));
}
}
@Override
Double getUtilization(DatanodeStorageReport r, final StorageType t) {
long capacity = 0L;
- long dfsUsed = 0L;
+ long totalUsed = 0L;
for(StorageReport s : r.getStorageReports()) {
if (s.getStorage().getStorageType() == t) {
capacity += s.getCapacity();
- dfsUsed += s.getDfsUsed();
+ totalUsed += (s.getCapacity() - s.getRemaining());
Review Comment:
As mentioned above.
##########
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/balancer/BalancingPolicy.java:
##########
@@ -138,7 +138,7 @@ String getName() {
void accumulateSpaces(DatanodeStorageReport r) {
for(StorageReport s : r.getStorageReports()) {
final StorageType t = s.getStorage().getStorageType();
- totalCapacities.add(t, s.getCapacity());
+ totalCapacities.add(t, s.getRemaining() + s.getBlockPoolUsed());
Review Comment:
IMO, it's difficult to understand the meaning of this improvement, just
suggest add some annotations for Pool policy and describe what and why.
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