hbase-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Jeffrey Zhong (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-11837) Scanner from RegionCoprocessorEnvironment.getTable(TableName) returns no local data
Date Fri, 29 Aug 2014 00:27:10 GMT

     [ https://issues.apache.org/jira/browse/HBASE-11837?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jeffrey Zhong updated HBASE-11837:
----------------------------------

    Attachment: HBASE-11837.patch

After tracing the steps in scan code path, I found that region server does return result back
through CellScanner while CoprocessorHConnection#callBlockingMethod just drops CellScanner
quietly. 

This is "data loss" issue because client drops data on the fly. I tested with the test and
it passed:

{noformat}
Running org.apache.phoenix.end2end.TenantSpecificTablesDDLIT
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 100.844 sec - in org.apache.phoenix.end2end.TenantSpecificTablesDDLIT
{noformat}  

> 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
>            Assignee: Jeffrey Zhong
>         Attachments: HBASE-11837.patch, 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]



--
This message was sent by Atlassian JIRA
(v6.2#6252)

Mime
View raw message