sodonnel commented on a change in pull request #1291:
URL: https://github.com/apache/hadoop-ozone/pull/1291#discussion_r470003462
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File path:
hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/pipeline/PipelinePlacementPolicy.java
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@@ -163,9 +163,42 @@ int currentPipelineCount(DatanodeDetails datanodeDetails,
int nodesRequired) {
throw new SCMException(msg,
SCMException.ResultCodes.FAILED_TO_FIND_SUITABLE_NODE);
}
+
+ if (!checkAllNodesAreEqual(nodeManager.getClusterNetworkTopologyMap())) {
+ boolean multipleRacks = multipleRacksAvailable(healthyNodes);
Review comment:
In the first call to `multipleRacksAvailable(...)` we just use all
healthy nodes and don't worry about excluded nodes. As Pifta said, excluded
nodes are handled later and this first call is just to check if the cluster has
multiple alive racks.
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