[英]Spring Integration: Application leaking SimpleAsyncTaskExecutor threads?
[英]Spring integration - Task executor with SimpleAsyncTaskExecutor
在我的应用程序中,我试图对服务进行异步调用,这样我就不必等待那个昂贵的调用。 我正在使用SimpleAsyncTaskExecutor但没有运气。 请参阅下面的代码段。 知道我想念的是什么。
我的要求:请求进入主通道,即issuTicket,它将检查标头值,并可以转到flow1_channel或flow2_channel。 flow2是一个昂贵的调用,因此我想从一个新线程开始。
我尝试过使用SimpleAsyncTaskExecutor,以为它将进行Asynch调用,但是从日志看来,主线程仍在等待flow2_channel完成。 有任何想法吗? 在此先感谢您对此大胆的评论
Config file :
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:int="http://www.springframework.org/schema/integration" xmlns:oxm="http://www.springframework.org/schema/oxm"
xmlns:int-xml="http://www.springframework.org/schema/integration/xml" xmlns:int-ws="http://www.springframework.org/schema/integration/ws"
xmlns:c="http://www.springframework.org/schema/c" xmlns:util="http://www.springframework.org/schema/util"
xmlns:int-http="http://www.springframework.org/schema/integration/http" xmlns:task="http://www.springframework.org/schema/task"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/integration http://www.springframework.org/schema/integration/spring-integration-3.0.xsd
http://www.springframework.org/schema/integration/http http://www.springframework.org/schema/integration/http/spring-integration-http-3.0.xsd
http://www.springframework.org/schema/integration/xml http://www.springframework.org/schema/integration/xml/spring-integration-xml-3.0.xsd
http://www.springframework.org/schema/integration/ws http://www.springframework.org/schema/integration/ws/spring-integration-ws-3.0.xsd
http://www.springframework.org/schema/oxm http://www.springframework.org/schema/oxm/spring-oxm.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd
http://www.springframework.org/schema/integration/http http://www.springframework.org/schema/integration/http/spring-integration-http-3.0.xsd
http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-3.0.xsd">
<!-- Channel definition -->
<int:channel id="flow2_channel">
<int:dispatcher task-executor="asynchThread" />
</int:channel>
<int:channel id="flow1_channel" />
<bean id="asynchThread" class="org.springframework.core.task.SimpleAsyncTaskExecutor">
<property name="concurrencyLimit" value="20" />
</bean>
<!-- Main entry -->
<int:chain input-channel="issueTicket">
<int:filter expression="headers['status'] == 'TRUE'" discard-channel="flow1_channel" />
<int:gateway request-channel="flow2_channel" />
</int:chain>
<int:chain input-channel="flow2_channel">
<!-- time consuming call -->
<int-http:outbound-gateway url="http://localhost:8080" http-method="POST" />
</int:chain>
</beans>
Unit test :
package com.swacorp.ais.createBooking.springorchestration;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.integration.MessageChannel;
import org.springframework.integration.support.MessageBuilder;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
@ContextConfiguration(locations = {"classpath:createBooking/TestContext.xml"})
@RunWith(SpringJUnit4ClassRunner.class)
public class SampleTest {
@Autowired
private MessageChannel issueTicket;
@Before
public void setUp() throws Exception {
}
@Test
public void test() {
issueTicket.send(MessageBuilder.withPayload("test").setHeader("status", "TRUE").build());
}
}
---------------
From logs:
2015-09-04 13:29:51,029 DEBUG [main] {} [org.springframework.integration.handler.MessageHandlerChain]- org.springframework.integration.handler.MessageHandlerChain#0 received message: [Payload=test][Headers={timestamp=1441391391029, id=5f7c6af9-5efa-4cca-a274-2fa35097e10d, status=TRUE}]
2015-09-04 13:29:51,029 DEBUG [main] {} [org.springframework.integration.filter.MessageFilter]- org.springframework.integration.filter.MessageFilter@4c71eba0 received message: [Payload=test][Headers={timestamp=1441391391029, id=5f7c6af9-5efa-4cca-a274-2fa35097e10d, status=TRUE}]
2015-09-04 13:29:51,029 DEBUG [main] {} [org.springframework.beans.factory.support.DefaultListableBeanFactory]- Returning cached instance of singleton bean 'integrationEvaluationContext'
2015-09-04 13:29:51,029 DEBUG [main] {} [org.springframework.integration.filter.MessageFilter]- handler 'org.springframework.integration.filter.MessageFilter@4c71eba0' sending reply Message: [Payload=test][Headers={timestamp=1441391391029, id=5f7c6af9-5efa-4cca-a274-2fa35097e10d, status=TRUE}]
2015-09-04 13:29:51,029 DEBUG [main] {} [org.springframework.integration.gateway.RequestReplyMessageHandlerAdapter]- (inner bean)#1 received message: [Payload=test][Headers={timestamp=1441391391029, id=5f7c6af9-5efa-4cca-a274-2fa35097e10d, status=TRUE}]
2015-09-04 13:29:51,029 DEBUG [main] {} [org.springframework.beans.factory.support.DefaultListableBeanFactory]- Returning cached instance of singleton bean 'integrationEvaluationContext'
2015-09-04 13:29:51,029 DEBUG [main] {} [org.springframework.integration.channel.ExecutorChannel]- preSend on channel 'flow2_channel', message: [Payload=test][Headers={timestamp=1441391391029, id=b8ec3256-13f0-b86f-f57c-e021e0541dd4, errorChannel=org.springframework.integration.core.MessagingTemplate$TemporaryReplyChannel@2aed913b, replyChannel=org.springframework.integration.core.MessagingTemplate$TemporaryReplyChannel@2aed913b, status=TRUE}]
2015-09-04 13:29:51,044 DEBUG [main] {} [org.springframework.core.task.SimpleAsyncTaskExecutor$ConcurrencyThrottleAdapter]- Entering throttle at concurrency count 0
2015-09-04 13:29:51,044 DEBUG [main] {} [org.springframework.integration.channel.ExecutorChannel]- postSend (sent=true) on channel 'flow2_channel', message: [Payload=test][Headers={timestamp=1441391391029, id=b8ec3256-13f0-b86f-f57c-e021e0541dd4, errorChannel=org.springframework.integration.core.MessagingTemplate$TemporaryReplyChannel@2aed913b, replyChannel=org.springframework.integration.core.MessagingTemplate$TemporaryReplyChannel@2aed913b, status=TRUE}]
2015-09-04 13:29:51,044 DEBUG [SimpleAsyncTaskExecutor-1] {} [org.springframework.integration.handler.MessageHandlerChain]- org.springframework.integration.handler.MessageHandlerChain#1 received message: [Payload=test][Headers={timestamp=1441391391029, id=b8ec3256-13f0-b86f-f57c-e021e0541dd4, errorChannel=org.springframework.integration.core.MessagingTemplate$TemporaryReplyChannel@2aed913b, replyChannel=org.springframework.integration.core.MessagingTemplate$TemporaryReplyChannel@2aed913b, status=TRUE}]
2015-09-04 13:29:51,044 DEBUG [SimpleAsyncTaskExecutor-1] {} [org.springframework.integration.http.outbound.HttpRequestExecutingMessageHandler]- org.springframework.integration.handler.MessageHandlerChain#1$child#0.handler received message: [Payload=test][Headers={timestamp=1441391391029, id=b8ec3256-13f0-b86f-f57c-e021e0541dd4, errorChannel=org.springframework.integration.core.MessagingTemplate$TemporaryReplyChannel@2aed913b, replyChannel=org.springframework.integration.core.MessagingTemplate$TemporaryReplyChannel@2aed913b, status=TRUE}]
2015-09-04 13:29:51,044 DEBUG [SimpleAsyncTaskExecutor-1] {} [org.springframework.integration.http.support.DefaultHttpHeaderMapper]- outboundHeaderNames=[Accept, Accept-Charset, Accept-Encoding, Accept-Language, Accept-Ranges, Authorization, Cache-Control, Connection, Content-Length, Content-Type, Cookie, Date, Expect, From, Host, If-Match, If-Modified-Since, If-None-Match, If-Range, If-Unmodified-Since, Max-Forwards, Pragma, Proxy-Authorization, Range, Referer, TE, Upgrade, User-Agent, Via, Warning]
2015-09-04 13:29:51,044 DEBUG [SimpleAsyncTaskExecutor-1] {} [org.springframework.integration.http.support.DefaultHttpHeaderMapper]- headerName=[timestamp] WILL NOT be mapped
2015-09-04 13:29:51,044 DEBUG [SimpleAsyncTaskExecutor-1] {} [org.springframework.integration.http.support.DefaultHttpHeaderMapper]- headerName=[id] WILL NOT be mapped
2015-09-04 13:29:51,044 DEBUG [SimpleAsyncTaskExecutor-1] {} [org.springframework.integration.http.support.DefaultHttpHeaderMapper]- headerName=[errorChannel] WILL NOT be mapped
2015-09-04 13:29:51,044 DEBUG [SimpleAsyncTaskExecutor-1] {} [org.springframework.integration.http.support.DefaultHttpHeaderMapper]- headerName=[replyChannel] WILL NOT be mapped
2015-09-04 13:29:51,044 DEBUG [SimpleAsyncTaskExecutor-1] {} [org.springframework.integration.http.support.DefaultHttpHeaderMapper]- headerName=[status] WILL NOT be mapped
2015-09-04 13:29:51,060 DEBUG [SimpleAsyncTaskExecutor-1] {} [org.springframework.web.client.RestTemplate]- Created POST request for "http://localhost:8080"
2015-09-04 13:29:51,060 DEBUG [SimpleAsyncTaskExecutor-1] {} [org.springframework.web.client.RestTemplate]- Writing [test] as "text/plain;charset=UTF-8" using [org.springframework.http.converter.StringHttpMessageConverter@688d9b8]
2015-09-04 13:29:52,076 DEBUG [SimpleAsyncTaskExecutor-1] {} [org.springframework.beans.factory.support.DefaultListableBeanFactory]- Returning cached instance of singleton bean 'errorChannel'
2015-09-04 13:29:52,076 DEBUG [SimpleAsyncTaskExecutor-1] {} [org.springframework.core.task.SimpleAsyncTaskExecutor$ConcurrencyThrottleAdapter]- Returning from throttle at concurrency count 0
2015-09-04 13:29:52,076 DEBUG [main] {} [org.springframework.test.context.support.DirtiesContextTestExecutionListener]- After test method: context [[TestContext@6f648f32 testClass = SampleTest, testInstance = com.swacorp.ais.createBooking.springorchestration.SampleTest@32f554c0, testMethod = test@SampleTest, testException = org.springframework.integration.MessageHandlingException: error occurred in message handler [(inner bean)#1], mergedContextConfiguration = [MergedContextConfiguration@39cb7ee5 testClass = SampleTest, locations = '{classpath:createBooking/TestContext.xml}', classes = '{}', contextInitializerClasses = '[]', activeProfiles = '{}', contextLoader = 'org.springframework.test.context.support.DelegatingSmartContextLoader', parent = [null]]]], class dirties context [false], class mode [null], method dirties context [false].
2015-09-04 13:29:52,076 DEBUG [main] {} [org.springframework.test.context.web.ServletTestExecutionListener]- Resetting RequestContextHolder for test context [TestContext@6f648f32 testClass = SampleTest, testInstance = com.swacorp.ais.createBooking.springorchestration.SampleTest@32f554c0, testMethod = test@SampleTest, testException = org.springframework.integration.MessageHandlingException: error occurred in message handler [(inner bean)#1], mergedContextConfiguration = [MergedContextConfiguration@39cb7ee5 testClass = SampleTest, locations = '{classpath:createBooking/TestContext.xml}', classes = '{}', contextInitializerClasses = '[]', activeProfiles = '{}', contextLoader = 'org.springframework.test.context.support.DelegatingSmartContextLoader', parent = [null]]].
2015-09-04 13:29:52,076 DEBUG [main] {} [org.springframework.test.context.support.DirtiesContextTestExecutionListener]- After test class: context [[TestContext@6f648f32 testClass = SampleTest, testInstance = [null], testMethod = [null], testException = [null], mergedContextConfiguration = [MergedContextConfiguration@39cb7ee5 testClass = SampleTest, locations = '{classpath:createBooking/TestContext.xml}', classes = '{}', contextInitializerClasses = '[]', activeProfiles = '{}', contextLoader = 'org.springframework.test.context.support.DelegatingSmartContextLoader', parent = [null]]]], dirtiesContext [false].
2015-09-04 13:29:52,076 INFO [Thread-0] {} [org.springframework.context.support.GenericApplicationContext]- Closing org.springframework.context.support.GenericApplicationContext@2b29f93b: startup date [Fri Sep 04 13:29:50 CDT 2015]; root of context hierarchy
2015-09-04 13:29:52,076 DEBUG [Thread-0] {} [org.springframework.beans.factory.support.DefaultListableBeanFactory]- Returning cached instance of singleton bean 'org.springframework.integration.config.IdGeneratorConfigurer#0'
问题:为什么线程没有并行运行? 我可以看到主线程,然后看到SimpleAsynchTaskExecutor,然后看到main继续...我需要的是main,SimpleAsynchTaskExecutor,main,SimpleAsynchTaskExecutor等。
什么是flow2_channel
“上游”?
当问这样的问题时,最好显示所有配置。
如果它是某种网关,则要忽略答复,则需要设置reply-timeout="0"
(对于简单的<gateway/>
则需要设置default-reply-timeout
)。
编辑
由于您正在使用中间流网关,因此,如果您不想等待结果,则需要对其进行配置,以便...
<int:gateway request-channel="flow2_channel" default-reply-timeout="0" />
这是我在第一个回答中所说的。
也就是说,目前尚不清楚为什么要在那里有一个网关。 您只需将两条链与异步通道连接在一起...
<int:chain input-channel="issueTicket" output-channel="flow2_channel">
<int:filter expression="headers['status'] == 'TRUE'" discard-channel="flow1_channel" />
</int:chain>
<int:chain input-channel="flow2_channel" output-channel="nullChannel">
<!-- time consuming call -->
<int-http:outbound-gateway url="http://localhost:8080" http-method="POST" />
</int:chain>
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