xiaoyuyao commented on a change in pull request #1371:
URL: https://github.com/apache/hadoop-ozone/pull/1371#discussion_r492218302
##########
File path:
hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/pipeline/RatisPipelineProvider.java
##########
@@ -98,8 +105,65 @@ private boolean exceedPipelineNumberLimit(ReplicationFactor
factor) {
return false;
}
+ private Map<DatanodeDetails, Integer> getSuggestedLeaderCount(
+ List<DatanodeDetails> dns) {
+ Map<DatanodeDetails, Integer> suggestedLeaderCount = new HashMap<>();
+ for (DatanodeDetails dn : dns) {
+ suggestedLeaderCount.put(dn, 0);
+
+ Set<PipelineID> pipelineIDSet = getNodeManager().getPipelines(dn);
+ for (PipelineID pipelineID : pipelineIDSet) {
+ try {
+ Pipeline pipeline =
getPipelineStateManager().getPipeline(pipelineID);
+ if (!pipeline.isClosed()
+ && dn.getUuid().equals(pipeline.getSuggestedLeaderId())) {
Review comment:
Good point, planed leader distribution should work with RATIS-967. How
do we scale with this. Plan weight for each of node as a leader when the
cluster has thousands of nodes can be difficult.
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