/** * Initialize any state for this DB. Called once per DB instance; there is one DB instance per * client thread. */ @Override public void init() throws DBException { if ("true".equals(getProperties().getProperty("clientbuffering", "false"))) { this.clientSideBuffering = true; } if (getProperties().containsKey("writebuffersize")) { writeBufferSize = Long.parseLong(getProperties().getProperty("writebuffersize")); } if (getProperties().getProperty("durability") != null) { this.durability = Durability.valueOf(getProperties().getProperty("durability")); } try { connection = ConnectionFactory.createConnection(config); } catch (java.io.IOException e) { throw new DBException(e); } if ((getProperties().getProperty("debug") != null) && (getProperties().getProperty("debug").compareTo("true") == 0)) { debug = true; } if ("false".equals(getProperties().getProperty("hbase.usepagefilter", "true"))) { usePageFilter = false; } columnFamily = getProperties().getProperty("columnfamily"); if (columnFamily == null) { System.err.println("Error, must specify a columnfamily for HBase table"); throw new DBException("No columnfamily specified"); } columnFamilyBytes = Bytes.toBytes(columnFamily); // Terminate right now if table does not exist, since the client // will not propagate this error upstream once the workload // starts. String table = com.yahoo.ycsb.workloads.CoreWorkload.table; try { final TableName tName = TableName.valueOf(table); HTableDescriptor dsc = connection.getTable(tName).getTableDescriptor(); } catch (IOException e) { throw new DBException(e); } }