Package org.apache.hadoop.hbase.client

Examples of org.apache.hadoop.hbase.client.HBaseAdmin.tableExists()

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    final byte[] family2 = Bytes.toBytes("f2");
    final byte[] qualifier = Bytes.toBytes("q");

    // create table
    HBaseAdmin admin = TEST_UTIL.getHBaseAdmin();
    if (admin.tableExists(tableName)) {
      admin.disableTable(tableName);
      admin.deleteTable(tableName);
    }
    HTableDescriptor htd = new HTableDescriptor(tableName);
    htd.addFamily(new HColumnDescriptor(family1));
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    final byte[] family2 = Bytes.toBytes("f2");
    final byte[] qualifier = Bytes.toBytes("q");

    // create table
    HBaseAdmin admin = TEST_UTIL.getHBaseAdmin();
    if (admin.tableExists(tableName)) {
      admin.disableTable(tableName);
      admin.deleteTable(tableName);
    }
    HTableDescriptor htd = new HTableDescriptor(tableName);
    htd.addFamily(new HColumnDescriptor(family1));
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    final byte[] qualifier = Bytes.toBytes("q");
    final byte[] user = Bytes.toBytes("user");

    // create table
    HBaseAdmin admin = TEST_UTIL.getHBaseAdmin();
    if (admin.tableExists(tableName)) {
      admin.disableTable(tableName);
      admin.deleteTable(tableName);
    }
    HTableDescriptor htd = new HTableDescriptor(tableName);
    htd.addFamily(new HColumnDescriptor(family1));
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      cp.preModifyColumnCalledOnly());

    // delete table
    admin.deleteTable(TEST_TABLE);
    assertFalse("Test table should have been deleted",
        admin.tableExists(TEST_TABLE));
    // preDeleteTable can't bypass default action.
    assertTrue("Coprocessor should have been called on table delete",
      cp.wasDeleteTableCalled());

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    // delete table
    assertFalse("No table deleted yet", cp.wasDeleteTableCalled());
    admin.deleteTable(TEST_TABLE);
    assertFalse("Test table should have been deleted",
        admin.tableExists(TEST_TABLE));
    assertTrue("Coprocessor should have been called on table delete",
        cp.wasDeleteTableCalled());
  }

  private void modifyTableSync(HBaseAdmin admin, byte[] tableName, HTableDescriptor htd)
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    HTableDescriptor htd = new HTableDescriptor(TEST_TABLE);
    htd.addFamily(new HColumnDescriptor(TEST_FAMILY));
    HBaseAdmin admin = UTIL.getHBaseAdmin();

    // delete table if exists
    if (admin.tableExists(TEST_TABLE)) {
      UTIL.deleteTable(TEST_TABLE);
    }

    admin.createTable(htd);
    admin.disableTable(TEST_TABLE);
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    job.setMapperClass(mapperClass);

    String hfileOutPath = conf.get(BULK_OUTPUT_CONF_KEY);
    String columns[] = conf.getStrings(COLUMNS_CONF_KEY);
    if (hfileOutPath != null) {
      if (!admin.tableExists(tableName)) {
        LOG.warn(format("Table '%s' does not exist.", tableName));
        // TODO: this is backwards. Instead of depending on the existence of a table,
        // create a sane splits file for HFileOutputFormat based on data sampling.
        createTable(admin, tableName, columns);
      }
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  @Override
  public boolean createResource(JobConf jobConf) throws IOException {
    HBaseAdmin hBaseAdmin = getHBaseAdmin(jobConf);

    if (hBaseAdmin.tableExists(tableName)) {
      return true;
    }

    LOG.info("creating hbase table: {}", tableName);
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      HBaseAdmin admin = new HBaseAdmin(config);
      String tablenameshard = this.getDataTableNme(tablename);
     
     
      if (!admin.tableExists(tablenameshard)) {
        HTableDescriptor tableDescripter = new HTableDescriptor(tablenameshard.getBytes());
        tableDescripter.setValue("group",String.valueOf(params.get("realtime.hbase.group")));

        HColumnDescriptor columnDescripter2 = new HColumnDescriptor(DATA_FAMILY);
        columnDescripter2.setBlockCacheEnabled(false);
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        admin.createTable(tableDescripter);
      }
     
     
      String tablenamequeue = this.getQueueTableNme(tablename);
      if (!admin.tableExists(tablenamequeue)) {
        HTableDescriptor tableDescripter = new HTableDescriptor(tablenamequeue.getBytes());
        tableDescripter.setValue("group",String.valueOf(params.get("realtime.hbase.group")));

        HColumnDescriptor columnDescripter2 = new HColumnDescriptor(MdrillQueue.FAMILY);
        columnDescripter2.setBlockCacheEnabled(false);
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