bshashikant commented on a change in pull request #1274:
URL: https://github.com/apache/hadoop-ozone/pull/1274#discussion_r496394076
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File path:
hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/container/SCMContainerManager.java
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@@ -101,12 +103,23 @@ public SCMContainerManager(
this.numContainerPerVolume = conf
.getInt(ScmConfigKeys.OZONE_SCM_PIPELINE_OWNER_CONTAINER_COUNT,
ScmConfigKeys.OZONE_SCM_PIPELINE_OWNER_CONTAINER_COUNT_DEFAULT);
+ this.numPipelinesPerRaftLogDisk = conf
+ .getInt(ScmConfigKeys.OZONE_SCM_PIPELINE_PER_RAFT_LOG_DISK,
+ ScmConfigKeys.OZONE_SCM_PIPELINE_PER_RAFT_LOG_DISK_DEFAULT);
loadExistingContainers();
scmContainerManagerMetrics = SCMContainerManagerMetrics.create();
}
+ private int getOpenContainerCountPerPipeline(Pipeline pipeline) {
+ int totalContainerCountPerDn = numContainerPerVolume *
+ pipelineManager.getNumHealthyVolumes(pipeline);
+ int maxPipelineCountPerDn = pipelineManager.maxPipelineLimit(pipeline);
+ return (int) Math.ceil(
+ ((double) totalContainerCountPerDn / maxPipelineCountPerDn));
+ }
+
Review comment:
I agree with @GlenGeng here. The pipeline placement should choose
homogeneous datanodes. The choice being made here, have many containers open on
a minimal set of pipelines that we can have out of the set of datanodes in the
pipleines.
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