ansoft maxwell(ansoft maxwell EM)是一种工业应用中的电磁软件,是电磁场分析软件,ANSOFT制作发行于2003年。
Maxwell介绍和工作原理一、Maxwell介绍Maxwell是由美国Zendesk开源,使用Java编写的MySQL实时抓取工具,可以实时读取MySQL二进制日志binlog,并生成 JSON 格式的消息...Maxwell官网:http://maxwells-daemon.io/二、Maxwell工作原理Maxwell工作原理与Canal工作原理一样,都是把自己伪装成MySQL...同样使用Maxwell也需要开启MySQL binlog日志。...Canal是阿里公司使用Java开发,Maxwell是zendesk公司使用Java开发。Canal支持高可用HA,支持断点续传。Maxwell不支持HA,但是支持断点续传,要想支持HA需要自己实现。...Canal采用Server+client模式,Maxwell没有采用这种模式,直接将数据发送到Kafka或者Redis等。总体来看,Maxwell相对于Canal更加轻量级。
序 本文主要研究一下maxwell的BinlogConnectorEventListener BinlogConnectorEventListener maxwell-1.25.1/src/main/java.../com/zendesk/maxwell/replication/BinlogConnectorEventListener.java class BinlogConnectorEventListener...BinaryLogClient.EventListener接口,其onEvent方法创建BinlogConnectorEvent,然后将该event放入queue中 BinlogConnectorEvent maxwell...-1.25.1/src/main/java/com/zendesk/maxwell/replication/BinlogConnectorEvent.java public class BinlogConnectorEvent...writeOldData这几个方法来实现;buildRowMap方法返回RowMap类型,writeOldData方法主要判断是否putOldData BinlogConnectorReplicator maxwell
1、Maxwell介绍 maxwell读取MySQL二进制日志并以JSON格式将行更新写入到Kafka,Kinesis或其他流媒体平台。...Maxwell的操作开销很低,只需要mysql和一个可写的地方即可。...`maxwell` set id = 1, daemon = 'Stanislaw Lem'; maxwell: { "database": "test", "table": "maxwell...where id = 1; maxwell: { "database": "test", "table": "maxwell", "type": "update",...maxwell相对canal的优势是使用简单,它直接将数据变更输出为json字符串,不需要再编写客户端。
序 本文主要研究一下maxwell的Scripting Scripting maxwell-1.25.1/src/main/java/com/zendesk/maxwell/scripting/Scripting.java...processHeartbeatFunc.call,针对DDLMap执行processDDLFunc.call,针对RowMap执行processRowFunc.call MaxwellConfig maxwell...-1.25.1/src/main/java/com/zendesk/maxwell/MaxwellConfig.java public class MaxwellConfig extends AbstractConfig
序 本文主要研究一下maxwell的MysqlPositionStore mysql-replication-17-638.jpg MysqlPositionStore maxwell-1.25.1.../src/main/java/com/zendesk/maxwell/schema/MysqlPositionStore.java public class MysqlPositionStore {...positions表中取出指定server_id和client_id的position记录;其中set方法使用了connectionPool.withSQLRetry来执行sql ConnectionPool maxwell...-1.25.1/src/main/java/com/zendesk/maxwell/util/ConnectionPool.java public interface ConnectionPool {...-1.25.1/src/main/java/com/zendesk/maxwell/util/C3P0ConnectionPool.java public class C3P0ConnectionPool
序 本文主要研究一下maxwell的BootstrapController BootstrapController maxwell-1.25.1/src/main/java/com/zendesk/maxwell...的记录;pushSkippedRows方法先执行skippedRows.flushToDisk(),然后遍历移除并执行producer.push(row) SynchronousBootstrapper maxwell...-1.25.1/src/main/java/com/zendesk/maxwell/bootstrap/SynchronousBootstrapper.java public class SynchronousBootstrapper
序 本文主要研究一下maxwell的PositionStoreThread percona-live-2012ppt-introductiontomysqlreplication-20-728.jpg...PositionStoreThread maxwell-1.25.1/src/main/java/com/zendesk/maxwell/schema/PositionStoreThread.java...lastHeartbeatSentFrom.getOffset()差值大于1000时返回true,在secondsSinceHeartbeat大于等于10的时候返回true MaxwellContext maxwell...-1.25.1/src/main/java/com/zendesk/maxwell/MaxwellContext.java public class MaxwellContext { //....-1.25.1/src/main/java/com/zendesk/maxwell/util/TaskManager.java public class TaskManager { private
一、控制台输出 全库监控 "" 测试 "" bin/maxwell \ --user='maxwell' \ --password='sweet' \ --host='127.0.0.1' \ --...port='3306' \ --producer=stdout 读取指定库 bin/maxwell \ --user='maxwell' \ --password='sweet' \ --host='...host可以跨节点指定ip 二、输出到kafka 测试脚本kafka-1 bin/maxwell \ --user='maxwell' \ --password='sweet' \ --host='..."" --kafka_topic默认是maxwell 在上面测试脚本中设置值为lpc_maxwell,这个是静态传参, 也可以动态传参namespace_%{database}_%{table}...,动态传参脚本如下 "" 测试脚本kafka-2 bin/maxwell \ --user='maxwell' \ --password='sweet' \ --host='127.0.0.1' \ -
序 本文主要研究一下maxwell的MysqlPositionStore MysqlPositionStore maxwell-1.25.1/src/main/java/com/zendesk/maxwell...positions表中取出指定server_id和client_id的position记录;其中set方法使用了connectionPool.withSQLRetry来执行sql ConnectionPool maxwell...-1.25.1/src/main/java/com/zendesk/maxwell/util/ConnectionPool.java public interface ConnectionPool {...DuplicateProcessException; } ConnectionPool定义了RetryableSQLFunction、getConnection、release、withSQLRetry C3P0ConnectionPool maxwell...-1.25.1/src/main/java/com/zendesk/maxwell/util/C3P0ConnectionPool.java public class C3P0ConnectionPool
序 本文主要研究一下maxwell的PositionStoreThread PositionStoreThread maxwell-1.25.1/src/main/java/com/zendesk/maxwell...lastHeartbeatSentFrom.getOffset()差值大于1000时返回true,在secondsSinceHeartbeat大于等于10的时候返回true MaxwellContext maxwell...-1.25.1/src/main/java/com/zendesk/maxwell/MaxwellContext.java public class MaxwellContext { //.....start方法,同时执行addTask方法;addTask将StoppableTask添加到taskManager中;其shutdown方法会执行taskManager.stop TaskManager maxwell...-1.25.1/src/main/java/com/zendesk/maxwell/util/TaskManager.java public class TaskManager { private
Maxwell输出数据格式参数解释Maxwell原理Maxwell的工作原理是实时读取MySQL数据库的二进制日志(Binlog),从中获取变更数据,再将变更数据以JSON格式发送至Kafka等流处理平台...;# 创建Maxwell用户并赋予其必要权限mysql> CREATE USER 'maxwell'@'%' IDENTIFIED BY 'maxwell';mysql> GRANT ALL ON maxwell...-lt 1 ]]; then echo "启动Maxwell" $MAXWELL_HOME/bin/maxwell --config $MAXWELL_HOME/config.properties...--daemon else echo "Maxwell正在运行" fi}stop_maxwell(){ status_maxwell if [[ $?...start_maxwell ;; stop ) stop_maxwell ;; restart ) stop_maxwell start_maxwell
序 本文主要研究一下maxwell的BinlogConnectorEventListener OIP (3).jpeg BinlogConnectorEventListener maxwell-1.25.1.../src/main/java/com/zendesk/maxwell/replication/BinlogConnectorEventListener.java class BinlogConnectorEventListener...BinaryLogClient.EventListener接口,其onEvent方法创建BinlogConnectorEvent,然后将该event放入queue中 BinlogConnectorEvent maxwell...-1.25.1/src/main/java/com/zendesk/maxwell/replication/BinlogConnectorEvent.java public class BinlogConnectorEvent...writeOldData这几个方法来实现;buildRowMap方法返回RowMap类型,writeOldData方法主要判断是否putOldData BinlogConnectorReplicator maxwell
序 本文主要研究一下maxwell的Scripting seminar-quotthe-future-of-mysql-roadmap-to-successquot-session-mysql-technology-update...-19-728.jpg Scripting maxwell-1.25.1/src/main/java/com/zendesk/maxwell/scripting/Scripting.java public...processHeartbeatFunc.call,针对DDLMap执行processDDLFunc.call,针对RowMap执行processRowFunc.call MaxwellConfig maxwell...-1.25.1/src/main/java/com/zendesk/maxwell/MaxwellConfig.java public class MaxwellConfig extends AbstractConfig
序 本文主要研究一下maxwell的FileProducer oracle-openworld-2013-hol9737-mysql-replication-best-practices-8-638....jpg FileProducer maxwell-1.25.1/src/main/java/com/zendesk/maxwell/producer/FileProducer.java public...继承了AbstractProducer,其构造器接收filename参数,然后创建FileWriter;其push方法写入json,然后执行context.setPosition(r) RowMap maxwell...-1.25.1/src/main/java/com/zendesk/maxwell/row/RowMap.java public class RowMap implements Serializable...} //...... } RowMap的toJSON方法根据MaxwellOutputConfig来对RowMap进行json化处理 MaxwellOutputConfig maxwell
序 本文主要研究一下maxwell的Recovery mysql-high-availability-solutions-feb-2015-webinar-17-638.jpg Recovery maxwell...-1.25.1/src/main/java/com/zendesk/maxwell/recovery/Recovery.java public class Recovery { static final...maxwell-1.25.1/src/main/java/com/zendesk/maxwell/Maxwell.java public class Maxwell implements Runnable...); public Maxwell(MaxwellConfig config) throws SQLException, URISyntaxException { this(...new MaxwellContext(config)); } protected Maxwell(MaxwellContext context) throws SQLException
序 本文主要研究一下maxwell的Recovery Recovery maxwell-1.25.1/src/main/java/com/zendesk/maxwell/recovery/Recovery.java...heartbeatRow.getPosition().getLastHeartbeatRead()为recoveryInfo.getHeartbeat()的HeartbeatRowMap,如果不为null则直接返回 Maxwell...maxwell-1.25.1/src/main/java/com/zendesk/maxwell/Maxwell.java public class Maxwell implements Runnable...); public Maxwell(MaxwellConfig config) throws SQLException, URISyntaxException { this(new...recoveredHeartbeat.getNextPosition(); } } return null; } //...... } Maxwell
序 本文主要研究一下maxwell的BinlogConnectorDiagnostic MaxwellDiagnostic maxwell-1.25.1/src/main/java/com/zendesk.../maxwell/monitoring/MaxwellDiagnostic.java public interface MaxwellDiagnostic { String getName()...getResource、check方法;check方法返回的是MaxwellDiagnosticResult.Check类型的CompletableFuture MaxwellDiagnosticResult maxwell...-1.25.1/src/main/java/com/zendesk/maxwell/replication/BinlogConnectorDiagnostic.java static class...-1.25.1/src/main/java/com/zendesk/maxwell/replication/HeartbeatNotifier.java public class HeartbeatNotifier
序 本文主要研究一下maxwell的BootstrapController mysql-replication-17-638 (1).jpg BootstrapController maxwell-...1.25.1/src/main/java/com/zendesk/maxwell/bootstrap/BootstrapController.java public class BootstrapController...的记录;pushSkippedRows方法先执行skippedRows.flushToDisk(),然后遍历移除并执行producer.push(row) SynchronousBootstrapper maxwell...-1.25.1/src/main/java/com/zendesk/maxwell/bootstrap/SynchronousBootstrapper.java public class SynchronousBootstrapper
序 本文主要研究一下maxwell的FileProducer FileProducer maxwell-1.25.1/src/main/java/com/zendesk/maxwell/producer...继承了AbstractProducer,其构造器接收filename参数,然后创建FileWriter;其push方法写入json,然后执行context.setPosition(r) RowMap maxwell...-1.25.1/src/main/java/com/zendesk/maxwell/row/RowMap.java public class RowMap implements Serializable...); } //...... } RowMap的toJSON方法根据MaxwellOutputConfig来对RowMap进行json化处理 MaxwellOutputConfig maxwell...-1.25.1/src/main/java/com/zendesk/maxwell/producer/MaxwellOutputConfig.java public class MaxwellOutputConfig
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