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https://issues.apache.org/jira/browse/HBASE-13026?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14317984#comment-14317984
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Matteo Bertozzi commented on HBASE-13026:
-----------------------------------------
+1
> Wrong error message in case incorrect snapshot name OR Incorrect table name
> ---------------------------------------------------------------------------
>
> Key: HBASE-13026
> URL: https://issues.apache.org/jira/browse/HBASE-13026
> Project: HBase
> Issue Type: Bug
> Affects Versions: 2.0.0
> Reporter: Bhupendra Kumar Jain
> Priority: Minor
> Attachments:
> 0001-HBASE-13026-Wrong-error-message-in-case-incorrect-sn.patch
>
>
> hbase(main):009:0> snapshot 't1', '.t1Snapshot'
> ERROR: Illegal first character <46> at 0. {color:red}*Namespaces*{color} can
> only start with alphanumeric characters': i.e. [a-zA-Z_0-9]: t1Snapshot
> hbase(main):008:0> create '-test' , 'cf1'
> ERROR: Illegal first character <45> at 0.{color:red}*Namespaces*{color} can
> only start with alphanumeric characters': i.e. [a-zA-Z_0-9]: -test
> >> As per message "Namespaces" is wrong. But in this scenario, snapshot /
> >> table name start character is wrong.
> Its because in the code the message is as below
> {code}
> if (qualifierName[start] == '.' || qualifierName[start] == '-') {
> throw new IllegalArgumentException("Illegal first character <" +
> qualifierName[0] +
> "> at 0. Namespaces can only start
> with alphanumeric " +
> "characters': i.e. [a-zA-Z_0-9]: " +
> Bytes.toString(qualifierName));
> {code}
> The correct code should be as below
> {code}
> if (qualifierName[start] == '.' || qualifierName[start] == '-') {
> throw new IllegalArgumentException("Illegal first character <" +
> qualifierName[start] +
> "> at 0. " + (isSnapshot ?
> "Snapshot" : "User-space table") +
> " qualifiers can only start with
> 'alphanumeric " +
> "characters': i.e. [a-zA-Z_0-9]: " +
> Bytes.toString(qualifierName, start,
> end));
> {code}
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