timmylicheng commented on a change in pull request #28: HDDS-1569 Support
creating multiple pipelines with same datanode
URL: https://github.com/apache/hadoop-ozone/pull/28#discussion_r338361334
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File path:
hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/pipeline/SCMPipelineManager.java
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@@ -147,10 +152,45 @@ private void initializePipelineState() throws
IOException {
}
}
+ private boolean exceedPipelineNumberLimit(ReplicationFactor factor) {
+ if (factor != ReplicationFactor.THREE) {
+ // Only put limits for Factor THREE pipelines.
+ return false;
+ }
+ // Per datanode limit
+ if (heavyNodeCriteria > 0) {
+ return (stateManager.getPipelines(ReplicationType.RATIS, factor).size() -
Review comment:
Other pipelines like STALE pipelines would possibly turn into OPEN at any
time. So here I just deduct out CLOSED pipelines.
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