JacksonYao287 commented on a change in pull request #2625:
URL: https://github.com/apache/ozone/pull/2625#discussion_r708374128
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File path:
hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/container/balancer/ContainerBalancer.java
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@@ -627,23 +633,9 @@ private double
calculateAvgUtilization(List<DatanodeUsageInfo> nodes) {
}
clusterCapacity = aggregatedStats.getCapacity().get();
clusterUsed = aggregatedStats.getScmUsed().get();
+ clusterRemaining = aggregatedStats.getRemaining().get();
- return clusterUsed / (double) clusterCapacity;
- }
-
- /**
- * Calculates the utilization, that is used space divided by capacity, for
- * the given datanodeUsageInfo.
- *
- * @param datanodeUsageInfo DatanodeUsageInfo to calculate utilization for
- * @return Utilization value
- */
- public static double calculateUtilization(
- DatanodeUsageInfo datanodeUsageInfo) {
- SCMNodeStat stat = datanodeUsageInfo.getScmNodeStat();
-
- return stat.getScmUsed().get().doubleValue() /
- stat.getCapacity().get().doubleValue();
+ return (clusterCapacity - clusterRemaining) / (double) clusterCapacity;
Review comment:
when calculating the average utilization of the whole cluster, should we
use the average value of the utilizations of every datanode?
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