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https://issues.apache.org/jira/browse/MAPREDUCE-5752?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Haibo Chen resolved MAPREDUCE-5752.
-----------------------------------
Resolution: Invalid
> Potential invalid iterator in NMClientImpl#cleanupRunningContainers()
> ---------------------------------------------------------------------
>
> Key: MAPREDUCE-5752
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5752
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Reporter: Ted Yu
> Priority: Minor
>
> In cleanupRunningContainers() :
> {code}
> for (StartedContainer startedContainer : startedContainers.values()) {
> try {
> stopContainer(startedContainer.getContainerId(),
> startedContainer.getNodeId());
> {code}
> Removal of container is done in removeStartedContainer():
> {code}
> startedContainers.remove(container.containerId);
> {code}
> This may result in invalid iterator for the loop on startedContainers.values()
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