ChenSammi 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_r335326566
##########
File path:
hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/pipeline/SCMPipelineManager.java
##########
@@ -147,10 +152,33 @@ private void initializePipelineState() throws
IOException {
}
}
+ private boolean exceedPipelineNumberLimit(ReplicationFactor factor) {
+ if (heavyNodeCriteria > 0 && factor == ReplicationFactor.THREE) {
+ return (stateManager.getPipelines(ReplicationType.RATIS, factor).size() -
+ stateManager.getPipelines(ReplicationType.RATIS, factor,
+ Pipeline.PipelineState.CLOSED).size()) >= heavyNodeCriteria *
+ nodeManager.getNodeCount(HddsProtos.NodeState.HEALTHY);
+ }
+
+ if (pipelineNumberLimit > 0) {
+ return (stateManager.getPipelines(ReplicationType.RATIS).size() -
+ stateManager.getPipelines(ReplicationType.RATIS,
+ Pipeline.PipelineState.CLOSED).size()) >= pipelineNumberLimit;
+ }
+
+ return false;
+ }
+
@Override
public synchronized Pipeline createPipeline(
ReplicationType type, ReplicationFactor factor) throws IOException {
lock.writeLock().lock();
+ if (type == ReplicationType.RATIS && exceedPipelineNumberLimit(factor)) {
+ lock.writeLock().unlock();
+ throw new SCMException("Pipeline number meets the limit: " +
+ pipelineNumberLimit,
+ SCMException.ResultCodes.FAILED_TO_FIND_HEALTHY_NODES);
Review comment:
define a new resultcode for this case or use FAILED_TO_FIND_SUITABLE_NODE
----------------------------------------------------------------
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
