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79 lines
2.7 KiB
79 lines
2.7 KiB
/* |
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* Licensed to the Apache Software Foundation (ASF) under one |
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* or more contributor license agreements. See the NOTICE file |
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* distributed with this work for additional information |
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* regarding copyright ownership. The ASF licenses this file |
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* to you under the Apache License, Version 2.0 (the |
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* "License"); you may not use this file except in compliance |
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* with the License. You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, |
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* software distributed under the License is distributed on an |
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
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* KIND, either express or implied. See the License for the |
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* specific language governing permissions and limitations |
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* under the License. |
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* |
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*/ |
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package org.apache.dolphinscheduler.dao.plugin.postgresql.monitor; |
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import org.apache.dolphinscheduler.dao.plugin.api.monitor.DatabaseMetrics; |
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import org.apache.dolphinscheduler.dao.plugin.api.monitor.DatabaseMonitor; |
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import java.sql.Connection; |
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import java.sql.ResultSet; |
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import java.sql.Statement; |
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import java.util.Date; |
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import javax.sql.DataSource; |
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import lombok.SneakyThrows; |
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import com.baomidou.mybatisplus.annotation.DbType; |
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public class PostgresqlMonitor implements DatabaseMonitor { |
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private final DataSource dataSource; |
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public PostgresqlMonitor(DataSource dataSource) { |
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this.dataSource = dataSource; |
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} |
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@Override |
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@SneakyThrows |
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public DatabaseMetrics getDatabaseMetrics() { |
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DatabaseMetrics monitorRecord = new DatabaseMetrics(); |
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monitorRecord.setDate(new Date()); |
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monitorRecord.setState(DatabaseMetrics.DatabaseHealthStatus.YES); |
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monitorRecord.setDbType(DbType.POSTGRE_SQL); |
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try ( |
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Connection connection = dataSource.getConnection(); |
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Statement pstmt = connection.createStatement()) { |
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try (ResultSet rs1 = pstmt.executeQuery("select count(*) from pg_stat_activity;")) { |
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if (rs1.next()) { |
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monitorRecord.setThreadsConnections(rs1.getInt("count")); |
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} |
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} |
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try (ResultSet rs2 = pstmt.executeQuery("show max_connections")) { |
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if (rs2.next()) { |
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monitorRecord.setMaxConnections(rs2.getInt("max_connections")); |
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} |
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} |
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try ( |
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ResultSet rs3 = |
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pstmt.executeQuery("select count(*) from pg_stat_activity pg where pg.state = 'active';")) { |
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if (rs3.next()) { |
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monitorRecord.setThreadsRunningConnections(rs3.getInt("count")); |
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} |
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} |
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} |
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return monitorRecord; |
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} |
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}
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