xiaoyuyao commented on a change in pull request #291: HDDS-1574 Average out
pipeline allocation on datanodes and add metrcs/test
URL: https://github.com/apache/hadoop-ozone/pull/291#discussion_r356248292
##########
File path:
hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/pipeline/SCMPipelineManager.java
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@@ -163,6 +177,18 @@ public synchronized Pipeline
createPipeline(ReplicationType type,
metrics.incNumPipelineCreated();
metrics.createPerPipelineMetrics(pipeline);
}
+ Pipeline overlapPipeline = RatisPipelineUtils
+ .checkPipelineContainSameDatanodes(stateManager, pipeline);
+ if (overlapPipeline != null) {
+ metrics.incNumPipelineContainSameDatanodes();
+ //TODO remove until pipeline allocation is proved equally distributed.
+ LOG.info("Pipeline: " + pipeline.getId().toString() +
Review comment:
can we put this with if (LOG.isDebugEnabled()) and change the log level to
DEBUG as this is could affect write performance?
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