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From "Sean Busbey (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-16044) Fix 'hbase shell' output parsing in bash scripts
Date Tue, 28 Jun 2016 15:29:57 GMT

    [ https://issues.apache.org/jira/browse/HBASE-16044?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15353224#comment-15353224
] 

Sean Busbey commented on HBASE-16044:
-------------------------------------

{quote}
Since these changes are only in master and branch-1, i think it keeps our operational compat
promise. stack, you still think we should change the format back? Or does the below plan sounds
good?
{quote}

If the shell output changes are just in master and branch-1, then yeah I agree we're fine
on compatibility. So the fix here would be to just update how we parse the output?

> Fix 'hbase shell' output parsing in bash scripts
> ------------------------------------------------
>
>                 Key: HBASE-16044
>                 URL: https://issues.apache.org/jira/browse/HBASE-16044
>             Project: HBase
>          Issue Type: Bug
>          Components: scripts
>    Affects Versions: 2.0.0
>            Reporter: Samir Ahmic
>            Assignee: Samir Ahmic
>            Priority: Critical
>             Fix For: 2.0.0
>
>
> In some of our bash scripts we are piping command in hbase shell and then parsing response
to define variables.  Since 'hbase shell' output format is changed we are picking wrong values
from output Here is example form gracful_stop.sh:
> {code}
> HBASE_BALANCER_STATE=$(echo 'balance_switch false' | "$bin"/hbase --config "${HBASE_CONF_DIR}"
shell | tail -3 | head -1)
> {code}
> this will return "balance_switch true" instead of previous balancer  state.



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