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https://issues.apache.org/jira/browse/YARN-6673?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16056420#comment-16056420
]
ASF GitHub Bot commented on YARN-6673:
--------------------------------------
Github user szegedim commented on a diff in the pull request:
https://github.com/apache/hadoop/pull/232#discussion_r123089455
--- Diff:
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/CGroupsCpuResourceHandlerImpl.java
---
@@ -181,16 +184,23 @@ public static boolean cpuLimitsExist(String path)
@Override
public List<PrivilegedOperation> preStart(Container container)
throws ResourceHandlerException {
-
String cgroupId = container.getContainerId().toString();
Resource containerResource = container.getResource();
cGroupsHandler.createCGroup(CPU, cgroupId);
try {
int containerVCores = containerResource.getVirtualCores();
- int cpuShares = CPU_DEFAULT_WEIGHT * containerVCores;
- cGroupsHandler
- .updateCGroupParam(CPU, cgroupId,
CGroupsHandler.CGROUP_CPU_SHARES,
- String.valueOf(cpuShares));
+ ContainerTokenIdentifier id =
container.getContainerTokenIdentifier();
+ if (id != null && id.getExecutionType() ==
+ ExecutionType.OPPORTUNISTIC) {
+ cGroupsHandler
+ .updateCGroupParam(CPU, cgroupId,
CGroupsHandler.CGROUP_CPU_SHARES,
+ String.valueOf(CPU_DEFAULT_WEIGHT_OPPORTUNISTIC));
+ } else {
+ int cpuShares = CPU_DEFAULT_WEIGHT * containerVCores;
+ cGroupsHandler
+ .updateCGroupParam(CPU, cgroupId,
CGroupsHandler.CGROUP_CPU_SHARES,
+ String.valueOf(cpuShares));
+ }
if (strictResourceUsageMode) {
--- End diff --
They still have a CPU setting, right? Or is it 0?
> Add cpu cgroup configurations for opportunistic containers
> ----------------------------------------------------------
>
> Key: YARN-6673
> URL: https://issues.apache.org/jira/browse/YARN-6673
> Project: Hadoop YARN
> Issue Type: Sub-task
> Reporter: Haibo Chen
> Assignee: Miklos Szegedi
>
> In addition to setting cpu.cfs_period_us on a per-container basis, we could
> also set cpu.shares to 2 for opportunistic containers so they are run on a
> best-effort basis
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