Mule 直到长时间运行的查询中对象列表的处理成功为止,该查询不起作用
我想开发一个流程,允许我向一个可能需要很长时间才能返回的外部系统进行查询。我可能需要查询列表中的多个值。我正在使用一个直到成功的范围来解决这个问题。不幸的是,即使请求运行了几次,失败的记录也不会被放入死信队列。以下是我解决问题的尝试:Mule 直到长时间运行的查询中对象列表的处理成功为止,该查询不起作用,mule,mule-component,Mule,Mule Component,我想开发一个流程,允许我向一个可能需要很长时间才能返回的外部系统进行查询。我可能需要查询列表中的多个值。我正在使用一个直到成功的范围来解决这个问题。不幸的是,即使请求运行了几次,失败的记录也不会被放入死信队列。以下是我解决问题的尝试: <!-- Dead Letter Queue for exhausted attempts--> <vm:endpoint name="DLQ" path="DLQ_VM" doc:name="VM"/> <
<!-- Dead Letter Queue for exhausted attempts-->
<vm:endpoint name="DLQ" path="DLQ_VM" doc:name="VM"/>
<flow name="StartFlow" processingStrategy="synchronous">
<!--Place a list of String errors to query for on this vm -->
<vm:inbound-endpoint path="request-processing-queue" "
exchange-pattern="one-way" doc:name="VM"/>
<vm:outbound-endpoint path="reprocessing-queue"
exchange-pattern="request-response" doc:name="VM"/>
<logger level="INFO" message="Data returned is #[payload]"/>
<catch-exception-strategy>
<logger level="ERROR" message="Failure During Processing"/>
</catch-exception-strategy>
</flow>
<flow name="RetryingProcess">
<vm:inbound-endpoint name="reprocessing-vm" exchange-
pattern="request-response"
path="reprocessing-queue" doc:name="VM"/>
<foreach collection="#[payload]" doc:name="For Each">
<vm:outbound-endpoint path="by-singles-vm" exchange-
pattern="request-response"/>
</foreach>
</flow>
<flow name="query-retry">
<vm:inbound-endpoint path="by-singles-vm" exchange-
pattern="request-response" doc:name="VM"/>
<until-successful objectStore-ref="objectStore"
failureExpression="#[groovy:(exception &&
exception in com.trion.CustomException)
||!(payload instanceof
com.trion.QueryResult])]"
maxRetries="5"
millisBetweenRetries="300000"
deadLetterQueue-ref="DLQ_VM" doc:name="Until
Successful">
<vm:outbound-endpoint path="try-again-vm" exchange-
pattern="request-response" doc:name="VM"/>
</until-successful>
</flow>
<flow name="GetQueryValue" >
<vm:inbound-endpoint path="try-again-vm" exchange-
pattern="request-response" doc:name="VM"/>
<flow-ref name="QueryRequest" />
</flow>
<!-- This never happens, i.e. the results are not put here... after retying
-->
<flow name="AttemptsExceededProcessing">
<inbound-endpoint ref="DLQ_VM" doc:name="Generic"/>
<logger level="DEBUG" message="Entering Final Destination Queue with
payload is #[payload]"/>
</flow>
<!-- Here I have a query to the external system... >
<flow name="QueryRequest">
...... Makes the long running query Here..
//returns com.trion.QueryResult
</flow>
</mule>
配置没有问题。我有一个毫秒间隔重试值设置得很小,我没有看到日志消息,并假设它不工作