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From "stack (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (HBASE-1865) 0.20.0 TableInputFormatBase NPE
Date Thu, 24 Sep 2009 23:08:16 GMT

     [ https://issues.apache.org/jira/browse/HBASE-1865?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

stack resolved HBASE-1865.
--------------------------

       Resolution: Fixed
    Fix Version/s: 0.21.0
                   0.20.1
         Assignee: stack

Applied branch and trunk (Thanks Eric).

> 0.20.0 TableInputFormatBase NPE
> -------------------------------
>
>                 Key: HBASE-1865
>                 URL: https://issues.apache.org/jira/browse/HBASE-1865
>             Project: Hadoop HBase
>          Issue Type: Bug
>    Affects Versions: 0.20.0
>            Reporter: Eric Tschetter
>            Assignee: stack
>             Fix For: 0.20.1, 0.21.0
>
>         Attachments: 1865.patch
>
>
> Spot the bug in this code:
> public List<InputSplit> getSplits(JobContext context) throws IOException {
>     byte [][] startKeys = table.getStartKeys();
>     if (startKeys == null || startKeys.length == 0) {
>       throw new IOException("Expecting at least one region.");
>     }
>     if (table == null) {
>       throw new IOException("No table was provided.");
>     }
> ...
> }
> Should check if the table is null before calling a method on it.
> Admittedly, this isn't the worst bug in the world, it's really just more of a nuisance
in that the "No table was provided" message becomes an NPE
> This bug is in both
> org.apache.hadoop.hbase.mapred.TableInputFormatBase
> org.apache.hadoop.hbase.mapreduce.TableInputFormatBase

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