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Posted to dev@hbase.apache.org by "Andrew Purtell (JIRA)" <ji...@apache.org> on 2015/04/11 03:25:13 UTC
[jira] [Resolved] (HBASE-5710) NPE in MiniCluster during metadata
scan for a pre-split table with multiple column families
[ https://issues.apache.org/jira/browse/HBASE-5710?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Andrew Purtell resolved HBASE-5710.
-----------------------------------
Resolution: Not A Problem
> NPE in MiniCluster during metadata scan for a pre-split table with multiple column families
> -------------------------------------------------------------------------------------------
>
> Key: HBASE-5710
> URL: https://issues.apache.org/jira/browse/HBASE-5710
> Project: HBase
> Issue Type: Bug
> Components: test, util
> Affects Versions: 0.94.0
> Environment: MiniCluster
> Reporter: James Taylor
> Priority: Minor
>
> In the MiniCluster test environment, an NPE occurs while scanning regions
> of a pre-split table with multiple column families. Without this working
> in the test environment, you cannot write unit tests for these types of
> scenarios.
> Add the following to TestMetaScanner to repro:
> @Test
> public void testMultiFamilyMultiRegionMetaScanner() throws Exception {
> LOG.info("Starting testMetaScanner");
> final byte[] TABLENAME = Bytes.toBytes("testMetaScanner");
> final byte[] FAMILY1 = Bytes.toBytes("family1");
> final byte[] FAMILY2 = Bytes.toBytes("family2");
> TEST_UTIL.createTable(TABLENAME, new byte[][] {FAMILY1,FAMILY2});
> Configuration conf = TEST_UTIL.getConfiguration();
> HTable table = new HTable(conf, TABLENAME);
> TEST_UTIL.createMultiRegions(conf, table, FAMILY1,
> new byte[][]{
> HConstants.EMPTY_START_ROW,
> Bytes.toBytes("region_a"),
> Bytes.toBytes("region_b")});
> TEST_UTIL.createMultiRegions(conf, table, FAMILY2,
> new byte[][]{
> HConstants.EMPTY_START_ROW,
> Bytes.toBytes("region_a"),
> Bytes.toBytes("region_b")});
> // Make sure all the regions are deployed
> TEST_UTIL.countRows(table);
> // This fails with an NPE currently
> MetaScanner.allTableRegions(conf, TABLENAME, false).keySet();
> table.close();
> }
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