Grant Sohn created YARN-5820:
--------------------------------
Summary: 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
Priority: Trivial
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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