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From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-11837) Scanner from RegionCoprocessorEnvironment.getTable(TableName) returns no local data
Date Thu, 28 Aug 2014 05:45:59 GMT

    [ https://issues.apache.org/jira/browse/HBASE-11837?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14113371#comment-14113371
] 

Andrew Purtell commented on HBASE-11837:
----------------------------------------

This one is bizarre. I can reproduce the problem. If I change CoprocessorEnvironment#getTable
to simply do a 'new HTable(tableName)' that doesn't fix the problem, but as far as I can tell
will do what HTablePool would. If I uncomment James' workaround in the Phoenix code indeed
using HTablePool to create a table does work around the issue.

> Scanner from RegionCoprocessorEnvironment.getTable(TableName) returns no local data
> -----------------------------------------------------------------------------------
>
>                 Key: HBASE-11837
>                 URL: https://issues.apache.org/jira/browse/HBASE-11837
>             Project: HBase
>          Issue Type: Bug
>          Components: Coprocessors
>    Affects Versions: 0.98.4
>            Reporter: James Taylor
>         Attachments: PHOENIX-1208-torepro.patch
>
>
> Might be fixed as a byproduct of the fix for HBASE-11766.
> Here's what I'm seeing:
> - From an endpoint coprocessor on SYSTEM.CATALOG table
> - Rows exist in the table, but are all in a single region
> - Scan is a new, empty scan created like this: new Scan()
> - The following scanner *does* return data:
> {code}
>     RegionScanner scanner = region.getScanner(scan);
> {code}
> - The following scanner *does not* return any data:
> {code}
> HTableInterface hTable = env.getTable(region.getTableDesc().getTableName());
> {code}
> - The following scanner *does* return data:
> {code}
>         HTablePool pool = new HTablePool (env.getConfiguration(),1);
>         HTableInterface hTable = pool.getTable("SYSTEM.CATALOG");
> {code}
> [~jeffreyz], [~apurtell]



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