ChenSammi commented on code in PR #9587:
URL: https://github.com/apache/ozone/pull/9587#discussion_r2664140309
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hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/diskbalancer/policy/DefaultVolumeChoosingPolicy.java:
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@@ -67,25 +67,34 @@ public Pair<HddsVolume, HddsVolume>
chooseVolume(MutableVolumeSet volumeSet,
.sorted(Comparator.comparingDouble(VolumeFixedUsage::getUtilization))
.collect(Collectors.toList());
- // Calculate the actual threshold and check src
- final double actualThreshold = getIdealUsage(volumeUsages) +
thresholdPercentage / 100;
- final VolumeFixedUsage src = volumeUsages.get(volumeUsages.size() - 1);
- if (src.getUtilization() < actualThreshold) {
- return null; // all volumes are under the threshold
- }
+ // Calculate ideal usage and threshold range
+ final double idealUsage = getIdealUsage(volumeUsages);
+ final double actualThreshold = thresholdPercentage / 100.0;
+ final double lowerThreshold = idealUsage - actualThreshold;
+ final double upperThreshold = idealUsage + actualThreshold;
Review Comment:
Could you add a debug log, about all volume's VolumeFixedUsage, threshold,
idealUsage, containerSize etc, for next time the issue reported by Ela
investigation?
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