guihecheng commented on a change in pull request #2246:
URL: https://github.com/apache/ozone/pull/2246#discussion_r633182776
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File path:
hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/SCMCommonPlacementPolicy.java
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@@ -165,9 +166,15 @@ public ConfigurationSource getConf() {
*/
public boolean hasEnoughSpace(DatanodeDetails datanodeDetails,
long sizeRequired) {
- SCMNodeMetric nodeMetric = nodeManager.getNodeStat(datanodeDetails);
- return (nodeMetric != null) && (nodeMetric.get() != null)
- && nodeMetric.get().getRemaining().hasResources(sizeRequired);
+ if (datanodeDetails instanceof DatanodeInfo) {
Review comment:
@JacksonYao287 oh, thanks for reviewing, here the check is just to
suppress downcasting warning actually.
AFAIK, SCMNodeManager get nodes from SCMNodeStateManger and these
datanodesDetails shall always be datanodeInfos, the situation will not be hit.
We could do some refactoring for usage of `DatanodeDetails` and
`DatanodeInfo` if needed, but not here I think.
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