Examples of org.apache.hadoop.hbase.client.Admin.mergeRegions()

Class org.apache.hadoop.hbase.client.Admin

Examples of org.apache.hadoop.hbase.client.Admin.mergeRegions()

org.apache.hadoop.hbase.client.Admin.mergeRegions()
Merge two regions. Asynchronous operation. @param encodedNameOfRegionA encoded name of region a @param encodedNameOfRegionB encoded name of region b @param forcible true if do a compulsory merge, otherwise we will only merge two adjacentregions @throws IOException

      }
    });


    int numRegions = admin.getTableRegions(TABLE_NAME).size();
    int numRegionsAfterMerge = numRegions - 2;
    admin.mergeRegions(regions.get(1).getEncodedNameAsBytes(),
        regions.get(2).getEncodedNameAsBytes(), true);
    admin.mergeRegions(regions.get(5).getEncodedNameAsBytes(),
        regions.get(6).getEncodedNameAsBytes(), true);


    // Verify that there's one region less

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    int numRegions = admin.getTableRegions(TABLE_NAME).size();
    int numRegionsAfterMerge = numRegions - 2;
    admin.mergeRegions(regions.get(1).getEncodedNameAsBytes(),
        regions.get(2).getEncodedNameAsBytes(), true);
    admin.mergeRegions(regions.get(5).getEncodedNameAsBytes(),
        regions.get(6).getEncodedNameAsBytes(), true);


    // Verify that there's one region less
    waitRegionsAfterMerge(numRegionsAfterMerge);
    assertEquals(numRegionsAfterMerge, admin.getTableRegions(TABLE_NAME).size());

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      }
    });


    int numRegions = admin.getTableRegions(TABLE_NAME).size();
    int numRegionsAfterMerge = numRegions - 2;
    admin.mergeRegions(regions.get(1).getEncodedNameAsBytes(),
        regions.get(2).getEncodedNameAsBytes(), true);
    admin.mergeRegions(regions.get(5).getEncodedNameAsBytes(),
        regions.get(6).getEncodedNameAsBytes(), true);


    waitRegionsAfterMerge(numRegionsAfterMerge);

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    int numRegions = admin.getTableRegions(TABLE_NAME).size();
    int numRegionsAfterMerge = numRegions - 2;
    admin.mergeRegions(regions.get(1).getEncodedNameAsBytes(),
        regions.get(2).getEncodedNameAsBytes(), true);
    admin.mergeRegions(regions.get(5).getEncodedNameAsBytes(),
        regions.get(6).getEncodedNameAsBytes(), true);


    waitRegionsAfterMerge(numRegionsAfterMerge);
    assertEquals(numRegionsAfterMerge, admin.getTableRegions(TABLE_NAME).size());

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      // Merge the two regions
      LOG.info("Merge Regions");
      listener.reset();
      List<HRegionInfo> regions = admin.getTableRegions(TABLE_NAME);
      assertEquals(2, regions.size());
      admin.mergeRegions(regions.get(0).getEncodedNameAsBytes(),
        regions.get(1).getEncodedNameAsBytes(), true);
      listener.awaitModifications(3);
      assertEquals(1, admin.getTableRegions(TABLE_NAME).size());
      assertEquals(1, listener.getLoadCount());     // new merged region added
      assertEquals(2, listener.getCloseCount());    // daughters removed

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