Spring 集成 - 生产者队列容量限制

Question

我们正在使用带有 MessageChannelPartitionHandler 的远程分区将分区消息发送到队列 (ActiveMQ) 以供工作人员挑选和处理。该作业有大量数据要处理，许多分区消息正在发布到队列，并且 replyChannnel 的响应聚合器因消息超时而失败，因为在给定时间内无法处理所有消息。我们还尝试通过使用队列容量来限制发布到队列的消息，这导致服务器崩溃并由于保存所有这些分区消息的内存问题而生成堆转储在内存中。

我们想控制 StepExecution split 本身的创建，这样就不会出现内存问题。示例情况是大约 4k 分区消息被发布到队列，整个工作大约需要 3 小时。

我们可以控制消息发布到 QueueChannel 吗？

<bean id="senExtractMemberMasterPartitionHandler"   class="org.springframework.batch.integration.partition.MessageChannelPartitionHandler">
        <property name="messagingOperations" ref="senExtractMemberMasterPartitionMsgTemplate" />
        <property name="replyChannel" ref="senExtractProcessingMasterAggregatedChannel" />
        <property name="stepName" value="senExtractGeneratePrintRequestWorkerStep" />
        <property name="gridSize" value="500" />
</bean>
<bean id="senExtractMemberMasterPartitionMsgTemplate" class="org.springframework.integration.core.MessagingTemplate">
    <property name="defaultChannel" ref="senExtractProcessingMasterRequestChannel" />
    <property name="receiveTimeout" value="18000000" />
</bean>

<integration:channel id="senExtractProcessingMasterAggregatedChannel" >
    <integration:queue />
    <integration:interceptors>
        <integration:wire-tap channel="masterLoggingChannel" />
    </integration:interceptors>
</integration:channel>


<int-jms:outbound-gateway
    id="senExtractMasterOutGateway" 
    connection-factory="masterJMSConnectionFactory"
    correlation-key="JMSCorrelationID"
    request-channel="senExtractProcessingMasterRequestChannel"
    request-destination-name="senExtractRequestQueue" 
    reply-channel="senExtractProcessingMasterReplyChannel"
    reply-destination-name="senExtractReplyQueue" 
    async="true"
    auto-startup="true"
    reply-timeout="18000000" 
    receive-timeout="6000">
    <integration:poller ref="masterPoller"/>
    <int-jms:reply-listener />  
</int-jms:outbound-gateway>

Answer 1

The job has huge data to process , many partition messages are publishing to queue and the aggregator of response from replyChannnel is failing with timeout of messages as all messages cant be processed in a given time.

您需要增加超时时间或添加更多工作器。 MessageChannelPartitionHandler 的 Javadoc 对此很清楚：

The receive timeout needs to be set realistically in the MessagingTemplate
and the aggregator, so that there is a good chance of all work being done.

We wanted to control the creation of StepExecution split itself

Spring Batch 为此提供了 StepExecutionSplitter 接口。如果默认的 (SimpleStepExecutionSplitter) 不适合您的需要，您可以为您的分区步骤提供自定义实现。

Spring 集成 - 生产者队列容量限制

Spring Integration - Producer Queue capacity limitations

spring-integration

spring-batch

spring-messaging