[jira] [Updated] (HBASE-20279) [tooling] check for incompatible environment for HBase 2.0 upgrade

["Michael Stack (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-20279?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Michael Stack updated HBASE-20279:
----------------------------------
        Parent:     (was: HBASE-13428)
    Issue Type: Bug  (was: Sub-task)

> [tooling] check for incompatible environment for HBase 2.0 upgrade
> ------------------------------------------------------------------
>
>                 Key: HBASE-20279
>                 URL: https://issues.apache.org/jira/browse/HBASE-20279
>             Project: HBase
>          Issue Type: Bug
>          Components: documentation, tooling
>    Affects Versions: 2.0.0
>            Reporter: Sean Busbey
>            Priority: Critical
>
> from [~stack] on HBASE-19158:
> {quote}
> bq. Server failure. HBase can still read HFiles written in the older version 2 format.
> Need a script that user can run pre-upgrade.
> {quote}
> Additional commentary from [~busbey]
> In addition to the config check stack mentions, such a tool could check
> * other problematic configs, like those for master-hosts-regions
> * inconsistent configs due to changed defaults (I think we should have some smell-tests around the change in default for hbase.security.authorization)
> * (optionally) check for unreadable WALs
> * (optionally) check for unreadable hfiles



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