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73 lines
2.6 KiB
73 lines
2.6 KiB
/* |
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* Licensed to the Apache Software Foundation (ASF) under one or more |
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* contributor license agreements. See the NOTICE file distributed with |
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* this work for additional information regarding copyright ownership. |
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* The ASF licenses this file to You under the Apache License, Version 2.0 |
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* (the "License"); you may not use this file except in compliance with |
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* 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, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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package org.apache.dolphinscheduler.dao.utils; |
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import org.apache.dolphinscheduler.common.enums.Flag; |
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import org.apache.dolphinscheduler.dao.entity.MonitorRecord; |
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import org.apache.dolphinscheduler.spi.enums.DbType; |
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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 lombok.extern.slf4j.Slf4j; |
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@Slf4j |
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public class PostgreSQLPerformance extends BaseDBPerformance { |
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/** |
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* get monitor record |
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* |
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* @param conn connection |
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* @return MonitorRecord |
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*/ |
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@Override |
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public MonitorRecord getMonitorRecord(Connection conn) { |
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MonitorRecord monitorRecord = new MonitorRecord(); |
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monitorRecord.setDate(new Date()); |
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monitorRecord.setState(Flag.YES); |
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monitorRecord.setDbType(DbType.POSTGRESQL); |
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try (Statement pstmt = conn.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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} catch (Exception e) { |
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monitorRecord.setState(Flag.NO); |
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log.error("SQLException ", e); |
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} |
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return monitorRecord; |
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} |
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}
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