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Posted to issues@hbase.apache.org by "Akash Giri (Jira)" <ji...@apache.org> on 2025/07/22 12:04:00 UTC
[jira] [Assigned] (HBASE-28660) list_namespace not working after an incorrect user input
[ https://issues.apache.org/jira/browse/HBASE-28660?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Akash Giri reassigned HBASE-28660:
----------------------------------
Assignee: (was: Akash Giri)
> list_namespace not working after an incorrect user input
> --------------------------------------------------------
>
> Key: HBASE-28660
> URL: https://issues.apache.org/jira/browse/HBASE-28660
> Project: HBase
> Issue Type: Bug
> Components: shell
> Affects Versions: 2.6.0, 3.0.0-beta-2
> Reporter: Ke Han
> Priority: Major
> Labels: pull-request-available
>
> When using hbase-3.0.0 or 2.6.0, there's a shell bug related to failure handling.
> If user inputs an incorrect *list_namespace* command, hshell throws an exception. However, it has a side effect on the following *list_namespace* command: the result becomes empty (incorrect).
> h1. Reproduce
> Execute the following 2 commands can reproduce this bug
> * The first command is an incorrect list_namespace command, which causes and exception.
> * The second command is a correct list_namespace command, its return value is incorrect (empty).
> {code:java}
> list_namespace, 'ns.*'
> list_namespace{code}
> Here's the execution result
> The return result of the second command is incorrect.
> {code:java}
> hbase:002:0> list_namespace, 'ns.*'
> Traceback (most recent call last):
> SyntaxError ((hbase):2: syntax error, unexpected end-of-file)
> list_namespace, 'ns.*'
> ^
> hbase:003:0> list_namespace
> hbase:004:0> {code}
> The expected output of list_namespace is
> {code:java}
> hbase:001:0> list_namespace
> NAMESPACE
> default
> hbase
> 2 row(s)
> Took 0.6820 seconds {code}
> h1. Root Cause
> This could be a bug in shell related to list_namespace. Restarting the shell restores normal functionality of the list_namespace command.
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