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Posted to issues@hbase.apache.org by "Andrew Purtell (JIRA)" <ji...@apache.org> on 2014/08/28 07:51:58 UTC
[jira] [Comment Edited] (HBASE-11837) Scanner from
RegionCoprocessorEnvironment.getTable(TableName) returns no local data
[ https://issues.apache.org/jira/browse/HBASE-11837?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14113371#comment-14113371 ]
Andrew Purtell edited comment on HBASE-11837 at 8/28/14 5:51 AM:
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This one is bizarre. I can reproduce the problem. If I change CoprocessorHost.Environment#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.
was (Author: apurtell):
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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