| /* |
| * 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.phoenix.query; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.hbase.HBaseConfiguration; |
| import org.apache.hadoop.hbase.HBaseTestingUtility; |
| import org.apache.phoenix.end2end.NeedsOwnMiniClusterTest; |
| import org.apache.phoenix.end2end.ServerMetadataCacheTestImpl; |
| import org.apache.phoenix.jdbc.PhoenixConnection; |
| import org.apache.phoenix.jdbc.PhoenixDriver; |
| import org.apache.phoenix.jdbc.PhoenixTestDriver; |
| import org.apache.phoenix.util.DelayedRegionServer; |
| import org.apache.phoenix.util.PhoenixRuntime; |
| import org.junit.AfterClass; |
| import org.junit.BeforeClass; |
| import org.junit.Test; |
| import org.junit.experimental.categories.Category; |
| |
| import java.sql.Connection; |
| import java.sql.DriverManager; |
| import java.sql.SQLException; |
| import java.sql.Statement; |
| import java.util.Properties; |
| |
| import static org.apache.phoenix.exception.SQLExceptionCode.NEW_INTERNAL_CONNECTION_THROTTLED; |
| import static org.apache.phoenix.monitoring.GlobalClientMetrics.GLOBAL_OPEN_INTERNAL_PHOENIX_CONNECTIONS; |
| import static org.apache.phoenix.monitoring.GlobalClientMetrics.GLOBAL_OPEN_PHOENIX_CONNECTIONS; |
| import static org.apache.phoenix.query.QueryServices.CLIENT_CONNECTION_MAX_ALLOWED_CONNECTIONS; |
| import static org.apache.phoenix.query.QueryServices.INTERNAL_CONNECTION_MAX_ALLOWED_CONNECTIONS; |
| import static org.apache.phoenix.query.QueryServices.TASK_HANDLING_INITIAL_DELAY_MS_ATTRIB; |
| import static org.apache.phoenix.query.QueryServices.TASK_HANDLING_INTERVAL_MS_ATTRIB; |
| import static org.apache.phoenix.util.PhoenixRuntime.JDBC_PROTOCOL_SEPARATOR; |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.fail; |
| |
| /** |
| * Note that some tests for concurrentConnections live in PhoenixMetricsIT.java which also test the metric emission |
| */ |
| @Category(NeedsOwnMiniClusterTest.class) |
| public class MaxConcurrentConnectionsIT extends BaseTest { |
| |
| private static HBaseTestingUtility hbaseTestUtil; |
| |
| @BeforeClass |
| public static void setUp() throws Exception { |
| final Configuration conf = HBaseConfiguration.create(); |
| setUpConfigForMiniCluster(conf); |
| hbaseTestUtil = new HBaseTestingUtility(conf); |
| |
| hbaseTestUtil.startMiniCluster(1,1,null,null,DelayedRegionServer.class); |
| // establish url and quorum. Need to use PhoenixDriver and not PhoenixTestDriver |
| String zkQuorum = "localhost:" + hbaseTestUtil.getZkCluster().getClientPort(); |
| url = PhoenixRuntime.JDBC_PROTOCOL + JDBC_PROTOCOL_SEPARATOR + zkQuorum + |
| JDBC_PROTOCOL_SEPARATOR + "uniqueConn=A"; |
| DriverManager.registerDriver(PhoenixDriver.INSTANCE); |
| DriverManager.registerDriver(new PhoenixTestDriver()); |
| } |
| |
| private String getUniqueUrl() { |
| return url + generateUniqueName(); |
| } |
| |
| //Have to shutdown our special delayed region server |
| @AfterClass |
| public static void tearDown() throws Exception { |
| ServerMetadataCacheTestImpl.resetCache(); |
| hbaseTestUtil.shutdownMiniCluster(); |
| } |
| |
| /** |
| * This tests the delete path which creates a internal phoenix connection per region |
| * @throws Exception |
| */ |
| @Test |
| public void testDeleteRuntimeFailureClosesConnections() throws Exception { |
| String tableName = generateUniqueName(); |
| String connectionUrl = getUniqueUrl(); |
| //table with lots of regions |
| String ddl = "create table " + tableName + " (i integer not null primary key, j integer) SALT_BUCKETS=256 "; |
| |
| Properties props = new Properties(); |
| props.setProperty(CLIENT_CONNECTION_MAX_ALLOWED_CONNECTIONS,String.valueOf(10)); |
| props.setProperty(INTERNAL_CONNECTION_MAX_ALLOWED_CONNECTIONS,String.valueOf(10)); |
| |
| //delay any task handeling as that causes additional connections |
| props.setProperty(TASK_HANDLING_INTERVAL_MS_ATTRIB,String.valueOf(600000)); |
| props.setProperty(TASK_HANDLING_INITIAL_DELAY_MS_ATTRIB,String.valueOf(600000)); |
| |
| String deleteStmt = "DELETE FROM " + tableName + " WHERE 20 = j"; |
| |
| try(Connection conn = DriverManager.getConnection(connectionUrl, props); Statement statement = conn.createStatement()) { |
| statement.execute(ddl); |
| } |
| |
| assertEquals(0, GLOBAL_OPEN_PHOENIX_CONNECTIONS.getMetric().getValue()); |
| assertEquals(0, GLOBAL_OPEN_INTERNAL_PHOENIX_CONNECTIONS.getMetric().getValue()); |
| Connection conn = null; |
| try { |
| conn = DriverManager.getConnection(connectionUrl, props); |
| //Enable delay for the delete |
| DelayedRegionServer.setDelayEnabled(true); |
| try (Statement statement = conn.createStatement()) { |
| statement.execute(deleteStmt); |
| } |
| fail(); |
| } catch (SQLException e) { |
| assertEquals(NEW_INTERNAL_CONNECTION_THROTTLED.getErrorCode(), e.getErrorCode()); |
| assertEquals(NEW_INTERNAL_CONNECTION_THROTTLED.getSQLState(), e.getSQLState()); |
| } finally { |
| DelayedRegionServer.setDelayEnabled(false); |
| if (conn != null) { |
| conn.close(); |
| } |
| long connections = GLOBAL_OPEN_PHOENIX_CONNECTIONS.getMetric().getValue(); |
| assertEquals(String.format("Found %d connections still open.", connections),0,connections); |
| connections = GLOBAL_OPEN_INTERNAL_PHOENIX_CONNECTIONS.getMetric().getValue(); |
| assertEquals(String.format("Found %d internal connections still open.", connections),0 ,connections); |
| } |
| |
| } |
| |
| @Test public void testClosedChildConnectionsRemovedFromParentQueue() throws SQLException { |
| String tableName = generateUniqueName(); |
| String connectionUrl = getUniqueUrl(); |
| int NUMBER_OF_ROWS = 10; |
| String ddl = "CREATE TABLE " + tableName + " (V BIGINT PRIMARY KEY, K BIGINT)"; |
| Properties props = new Properties(); |
| props.setProperty(CLIENT_CONNECTION_MAX_ALLOWED_CONNECTIONS, String.valueOf(10)); |
| props.setProperty(INTERNAL_CONNECTION_MAX_ALLOWED_CONNECTIONS, String.valueOf(10)); |
| try (Connection conn = DriverManager.getConnection(connectionUrl, props); |
| Statement statement = conn.createStatement()) { |
| statement.execute(ddl); |
| } |
| PhoenixConnection |
| connection = |
| (PhoenixConnection) DriverManager.getConnection(connectionUrl, props); |
| for (int i = 0; i < NUMBER_OF_ROWS; i++) { |
| connection.createStatement() |
| .execute("UPSERT INTO " + tableName + " VALUES (" + i + ", " + i + ")"); |
| connection.commit(); |
| } |
| connection.setAutoCommit(false); |
| try { |
| for (int i = 0; i < NUMBER_OF_ROWS; i++) { |
| connection.createStatement() |
| .execute("DELETE FROM " + tableName + " WHERE K = " + i); |
| } |
| } catch (SQLException e) { |
| fail(); |
| } finally { |
| connection.close(); |
| } |
| // All 10 child connections should be removed successfully from the queue |
| assertEquals(0, connection.getChildConnectionsCount()); |
| } |
| } |