| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.hadoop.chukwa.dataloader; |
| |
| import junit.framework.TestCase; |
| import java.util.Calendar; |
| import org.apache.hadoop.chukwa.database.Macro; |
| import org.apache.hadoop.chukwa.util.DatabaseWriter; |
| import org.apache.hadoop.chukwa.conf.ChukwaConfiguration; |
| import org.apache.hadoop.chukwa.util.ExceptionUtil; |
| import org.apache.hadoop.chukwa.database.TableCreator; |
| import org.apache.hadoop.chukwa.dataloader.MetricDataLoader; |
| import org.apache.hadoop.fs.FileStatus; |
| import org.apache.hadoop.fs.FileSystem; |
| import org.apache.hadoop.fs.Path; |
| import java.io.BufferedReader; |
| import java.io.File; |
| import java.io.FileReader; |
| import java.io.IOException; |
| import java.sql.ResultSet; |
| import java.sql.ResultSetMetaData; |
| import java.sql.SQLException; |
| import java.util.ArrayList; |
| |
| public class TestDatabaseMetricDataLoader extends TestCase { |
| |
| long[] timeWindow = {7, 30, 91, 365, 3650}; |
| String[] tables = {"system_metrics","disk","mr_job","mr_task"}; //,"dfs_namenode","dfs_datanode","dfs_fsnamesystem","dfs_throughput","hadoop_jvm","hadoop_mapred","hdfs_usage"}; |
| String cluster = "demo"; |
| long current = Calendar.getInstance().getTimeInMillis(); |
| |
| public void setUp() { |
| System.setProperty("CLUSTER","demo"); |
| DatabaseWriter db = new DatabaseWriter(cluster); |
| String buffer = ""; |
| File aFile = new File(System.getenv("CHUKWA_CONF_DIR") |
| + File.separator + "database_create_tables.sql"); |
| buffer = readFile(aFile); |
| String tables[] = buffer.split(";"); |
| for(String table : tables) { |
| if(table.length()>5) { |
| try { |
| db.execute(table); |
| } catch (Exception e) { |
| fail("Fail to retrieve meta data from database table: "+table); |
| } |
| } |
| } |
| db.close(); |
| for(int i=0;i<timeWindow.length;i++) { |
| TableCreator tc = new TableCreator(); |
| long start = current; |
| long end = current + (timeWindow[i]*1440*60*1000); |
| try { |
| tc.createTables(start, end); |
| } catch (Exception e) { |
| fail("Fail to create database tables."); |
| } |
| } |
| } |
| |
| public void tearDown() { |
| DatabaseWriter db = null; |
| try { |
| db = new DatabaseWriter(cluster); |
| ResultSet rs = db.query("show tables"); |
| ArrayList<String> list = new ArrayList<String>(); |
| while(rs.next()) { |
| String table = rs.getString(1); |
| list.add(table); |
| } |
| for(String table : list) { |
| db.execute("drop table "+table); |
| } |
| } catch(Throwable ex) { |
| } finally { |
| if(db!=null) { |
| db.close(); |
| } |
| } |
| } |
| |
| public String readFile(File aFile) { |
| StringBuffer contents = new StringBuffer(); |
| try { |
| BufferedReader input = new BufferedReader(new FileReader(aFile)); |
| try { |
| String line = null; // not declared within while loop |
| while ((line = input.readLine()) != null) { |
| contents.append(line); |
| contents.append(System.getProperty("line.separator")); |
| } |
| } finally { |
| input.close(); |
| } |
| } catch (IOException ex) { |
| ex.printStackTrace(); |
| } |
| return contents.toString(); |
| } |
| |
| public void testMetricDataLoader() { |
| boolean skip=false; |
| String srcDir = System.getenv("CHUKWA_DATA_DIR") + File.separator + "samples"; |
| try { |
| ChukwaConfiguration conf = new ChukwaConfiguration(); |
| FileSystem fs = FileSystem.get(conf); |
| FileStatus[] sources = fs.listStatus(new Path(srcDir)); |
| for (FileStatus sequenceFile : sources) { |
| MetricDataLoader mdl = new MetricDataLoader(conf, fs, sequenceFile.getPath().toUri().toString()); |
| mdl.call(); |
| } |
| if(sources.length==0) { |
| skip=true; |
| } |
| } catch (Throwable ex) { |
| fail("SQL Exception: "+ExceptionUtil.getStackTrace(ex)); |
| } |
| if(!skip) { |
| DatabaseWriter db = new DatabaseWriter(cluster); |
| for(int i=0;i<tables.length;i++) { |
| String query = "select [avg("+tables[i]+")] from ["+tables[i]+"]"; |
| Macro mp = new Macro(current,query); |
| query = mp.toString(); |
| try { |
| ResultSet rs = db.query(query); |
| ResultSetMetaData rsmd = rs.getMetaData(); |
| int numberOfColumns = rsmd.getColumnCount(); |
| while(rs.next()) { |
| for(int j=1;j<=numberOfColumns;j++) { |
| assertTrue("Table: "+tables[i]+", Column: "+rsmd.getColumnName(j)+", contains no data.",rs.getString(j)!=null); |
| } |
| } |
| } catch(Throwable ex) { |
| fail("MetricDataLoader failed: "+ExceptionUtil.getStackTrace(ex)); |
| } |
| } |
| db.close(); |
| assertTrue("MetricDataLoader executed successfully.",true); |
| } |
| } |
| |
| } |