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_r337896461
##########
File path:
hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/pipeline/SCMPipelineManager.java
##########
@@ -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() -
+ stateManager.getPipelines(ReplicationType.RATIS, factor,
+ Pipeline.PipelineState.CLOSED).size()) > heavyNodeCriteria *
+ nodeManager.getNodeCount(HddsProtos.NodeState.HEALTHY) /
+ factor.getNumber();
+ }
+
+ // Global limit
+ if (pipelineNumberLimit > 0) {
+ return (stateManager.getPipelines(ReplicationType.RATIS,
+ ReplicationFactor.THREE).size() - stateManager.getPipelines(
+ ReplicationType.RATIS, ReplicationFactor.THREE,
+ Pipeline.PipelineState.CLOSED).size()) >
+ (pipelineNumberLimit - stateManager.getPipelines(
+ ReplicationType.RATIS, ReplicationFactor.ONE).size());
+ }
+
+ return false;
+ }
+
@Override
public synchronized Pipeline createPipeline(
ReplicationType type, ReplicationFactor factor) throws IOException {
lock.writeLock().lock();
+ if (type == ReplicationType.RATIS && exceedPipelineNumberLimit(factor)) {
Review comment:
Good point. Updating.
----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
us...@infra.apache.org
With regards,
Apache Git Services
---------------------------------------------------------------------
To unsubscribe, e-mail: hdfs-dev-unsubscr...@hadoop.apache.org
For additional commands, e-mail: hdfs-dev-h...@hadoop.apache.org
