File getting deleted before processing - spring-integration

Question

I have spring xd module with rabbit transport which pulls files from s3 and split line by line and delete it after processing(ExpressionAdvice) .I have around 1 million messages(lines) in my file which is in s3.The file gets downloaded to xd container box and i checked md5sum and its same and has same lines . I see only 260k odd message are coming to output channel which is processor.I am loosing around 740 messages. sometimes it random once i see all messages like 1 million in my output channel and sometimes only 250k .I am measuring this using counter for my stream.File is downloaded but i feel its getting deleted before processing all records/lines in 10 seconds, my file size is around 700Mb.Please let me know if expression advice is deleting before processing.
module.aws-s3-source.count=1 and module.aws-s3-source.concurrency=70
stream1 as-s3-source |processor|sink
<?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:context="http://www.springframework.org/schema/context"
xmlns:int-aws="http://www.springframework.org/schema/integration/aws"
xmlns:int-file="http://www.springframework.org/schema/integration/file"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/integration/file
http://www.springframework.org/schema/integration/file/spring-integration-file.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/integration http://www.springframework.org/schema/integration/spring-integration.xsd
http://www.springframework.org/schema/integration/aws http://www.springframework.org/schema/integration/aws/spring-integration-aws-1.0.xsd">
<context:property-placeholder location="classpath*:test-${region}.properties" />
<int:poller fixed-delay="${fixedDelay}" default="true">
<int:advice-chain>
<ref bean="pollAdvise"/>
</int:advice-chain>
</int:poller>
<bean id="pollAdvise" class="org.springframework.integration.scheduling.PollSkipAdvice">
<constructor-arg ref="healthCheckStrategy"/>
</bean>
<bean id="healthCheckStrategy" class="test.ServiceHealthCheckPollSkipStrategy">
<property name="url" value="${url}"/>
<property name="doHealthCheck" value="${doHealthCheck}"/>
<property name="restTemplate" ref="restTemplate"/>
</bean>
<bean id="restTemplate"
class="org.springframework.web.client.RestTemplate">
<constructor-arg ref="requestFactory"/>
</bean>
<bean id="requestFactory"
class="test.BatchClientHttpRequestFactory">
<constructor-arg ref="verifier"/>
</bean>
<bean id="verifier"
class="test.NullHostnameVerifier">
</bean>
<bean id="encryptedDatum" class="test.EncryptedSecuredDatum"/>
<bean id="clientConfiguration" class="com.amazonaws.ClientConfiguration">
<property name="proxyHost" value="${proxyHost}"/>
<property name="proxyPort" value="${proxyPort}"/>
<property name="preemptiveBasicProxyAuth" value="false"/>
</bean>
<bean id="s3Operations" class="test.CustomC1AmazonS3Operations">
<constructor-arg index="0" ref="clientConfiguration"/>
<property name="awsEndpoint" value="s3.amazonaws.com"/>
<property name="temporaryDirectory" value="${temporaryDirectory}"/>
<property name="awsSecurityKey" value=""/>
</bean>
<bean id="credentials" class="org.springframework.integration.aws.core.BasicAWSCredentials">
</bean>
<int-aws:s3-inbound-channel-adapter aws-endpoint="s3.amazonaws.com"
bucket="${bucket}"
s3-operations="s3Operations"
credentials-ref="credentials"
file-name-wildcard="${fileNameWildcard}"
remote-directory="${prefix}"
channel="splitChannel"
local-directory="${localDirectory}"
accept-sub-folders="false"
delete-source-files="true"
archive-bucket="${archiveBucket}"
archive-directory="${archiveDirectory}">
</int-aws:s3-inbound-channel-adapter>
<int-file:splitter input-channel="splitChannel" output-channel="output" markers="false" charset="UTF-8">
<int-file:request-handler-advice-chain>
<bean class="org.springframework.integration.handler.advice.ExpressionEvaluatingRequestHandlerAdvice">
<property name="onSuccessExpression" value="payload.delete()"/>
</bean>
</int-file:request-handler-advice-chain>
</int-file:splitter>
<int:channel-interceptor pattern="*" order="3">
<bean class="org.springframework.integration.channel.interceptor.WireTap">
<constructor-arg ref="loggingChannel" />
</bean>
</int:channel-interceptor>
<int:logging-channel-adapter id="loggingChannel" log-full-message="true" level="INFO"/>
<int:channel id="output"/>
</beans>
Update 2 :
My stream is like below
aws-s3-source|processor|http-client| processor> queue:testQueue
1)Now I split the stream like below:
aws-s3-source> queue:s3Queue
I was able to read all my 1 million messages very fast.
2)Now i added one more stream like below i see issue again was s3 stops pulling file and message are lost everytime
queue:s3Queue>processor|http-client| processor> queue:testQueue
3)Observation is when i add http-client this issue happens again ,i.e. some message from input source is missing.
4)Now I split the file into 125 Mb 5 files instead of 660mb one file .ie 200 k records 5 files.I don't see the issue i get all my messages
I also see lot of messages clogging in queue before http-client .
I am thinking is it something to do with memory or threading inside xd?

Answer 1

Please let me know if expression advice is deleting before processing.
No; the advice is an around advice around the message handler; it can't execute (evaluate the expression), until the splitter has emitted all the lines.
Is it possible the file is pulled from s3 before it's completely written?
To debug this problem, I would suggest changing the advice to send the file to another subflow and do some analysis/logging there before deleting.