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https://issues.apache.org/jira/browse/YARN-5820?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15633743#comment-15633743
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Grant Sohn commented on YARN-5820:
----------------------------------
There is extra whitespace, otherwise it's ok.
{noformat}
node [-list [-states <States>| -showDetails | -all] | -status <NodeId>]
{noformat}
should be:
{noformat}
node [-list [-states <States>|-showDetails|-all] |-status <NodeId>]
{noformat}
> yarn node CLI help should be clearer
> ------------------------------------
>
> Key: YARN-5820
> URL: https://issues.apache.org/jira/browse/YARN-5820
> Project: Hadoop YARN
> Issue Type: Bug
> Components: client
> Affects Versions: 2.6.0
> Reporter: Grant Sohn
> Assignee: Ajith S
> Priority: Trivial
> Attachments: YARN-5820.01.patch
>
>
> Current message is:
> {noformat}
> usage: node
> -all Works with -list to list all nodes.
> -list List all running nodes. Supports optional use of
> -states to filter nodes based on node state, all -all
> to list all nodes.
> -states <States> Works with -list to filter nodes based on input
> comma-separated list of node states.
> -status <NodeId> Prints the status report of the node.
> {noformat}
> It should be either this:
> {noformat}
> usage: yarn node [-list [-states <States>|-all] | -status <NodeId>]
> -all Works with -list to list all nodes.
> -list List all running nodes. Supports optional use of
> -states to filter nodes based on node state, all -all
> to list all nodes.
> -states <States> Works with -list to filter nodes based on input
> comma-separated list of node states.
> -status <NodeId> Prints the status report of the node.
> {noformat}
> or that.
> {noformat}
> usage: yarn node -list [-states <States>|-all]
> yarn node -status <NodeId>
> -all Works with -list to list all nodes.
> -list List all running nodes. Supports optional use of
> -states to filter nodes based on node state, all -all
> to list all nodes.
> -states <States> Works with -list to filter nodes based on input
> comma-separated list of node states.
> -status <NodeId> Prints the status report of the node.
> {noformat}
> The latter is the least ambiguous.
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