Xiaoyu Yao created HDFS-8552:
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Summary: Fix hdfs namenode CLI usage message and its document
Key: HDFS-8552
URL: https://issues.apache.org/jira/browse/HDFS-8552
Project: Hadoop HDFS
Issue Type: Bug
Affects Versions: 2.6.0
Reporter: Xiaoyu Yao
Assignee: Xiaoyu Yao
The usage message from code does not match with the one documented.
1. "java NameNode" should be "hdfs namenode"
2. Many of options are not documented.
Usage message from code:
{code}
private static final String USAGE = "Usage: java NameNode ["
+ StartupOption.BACKUP.getName() + "] | \n\t["
+ StartupOption.CHECKPOINT.getName() + "] | \n\t["
+ StartupOption.FORMAT.getName() + " ["
+ StartupOption.CLUSTERID.getName() + " cid ] ["
+ StartupOption.FORCE.getName() + "] ["
+ StartupOption.NONINTERACTIVE.getName() + "] ] | \n\t["
+ StartupOption.UPGRADE.getName() +
" [" + StartupOption.CLUSTERID.getName() + " cid]" +
" [" + StartupOption.RENAMERESERVED.getName() + "<k-v pairs>] ] | \n\t["
+ StartupOption.UPGRADEONLY.getName() +
" [" + StartupOption.CLUSTERID.getName() + " cid]" +
" [" + StartupOption.RENAMERESERVED.getName() + "<k-v pairs>] ] | \n\t["
+ StartupOption.ROLLBACK.getName() + "] | \n\t["
+ StartupOption.ROLLINGUPGRADE.getName() + " "
+ RollingUpgradeStartupOption.getAllOptionString() + " ] | \n\t["
+ StartupOption.IMPORT.getName() + "] | \n\t["
+ StartupOption.INITIALIZESHAREDEDITS.getName() + "] | \n\t["
+ StartupOption.BOOTSTRAPSTANDBY.getName() + "] | \n\t["
+ StartupOption.RECOVER.getName() + " [ "
+ StartupOption.FORCE.getName() + "] ] | \n\t["
+ StartupOption.METADATAVERSION.getName() + " ] "
+ " ]";
{code}
Usage from document:
hdfs namenode [-backup] |
[-checkpoint] |
[-format [-clusterid cid ] [-force] [-nonInteractive] ] |
[-upgrade [-clusterid cid] [-renameReserved<k-v pairs>] ] |
[-upgradeOnly [-clusterid cid] [-renameReserved<k-v pairs>] ] |
[-rollback] |
[-rollingUpgrade <downgrade |rollback> ] |
[-finalize] |
[-importCheckpoint] |
[-initializeSharedEdits] |
[-bootstrapStandby] |
[-recover [-force] ] |
[-metadataVersion ]
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