[jira] [Created] (HDFS-11927) hdfs oiv_legacy:Normalize the verification of input parameter

["LiXin Ge (JIRA)" <ji...@apache.org>]

LiXin Ge created HDFS-11927:
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             Summary: hdfs oiv_legacy:Normalize the verification of input parameter
                 Key: HDFS-11927
                 URL: https://issues.apache.org/jira/browse/HDFS-11927
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: tools
    Affects Versions: 3.0.0-alpha3
            Reporter: LiXin Ge
            Assignee: LiXin Ge
             Fix For: 3.0.0-alpha4


hdfs oiv_legacy:Normalize the verification of input parameter
At present, hdfs oiv_legacy tool lacks in verification of input parameter.people can type in irrelevant option like:
bq../hdfs oiv_legacy -i fsimage_0000000000000000000 -o out -p XML -step 1024
or type in option with wrong format which he think come into effec but actually not: 
bq../hdfs oiv_legacy -i fsimage_0000000000000000000 -o out -p FileDistribution maxSize 4096 step 512 format
or some meaningless word which can also get through:
bq../hdfs oiv_legacy -i fsimage_0000000000000000000 -o out -p XML Hello World

We'd better not let these cases go unchecked. 



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