spring integration inbound file channel adapter thread hangs - spring-integration

we are using inbound channel adapter to poll for file and once we have file we do make db call. If we have problem with db connection, that thread just hangs and never poll the file again.
<int-file:inbound-channel-adapter id="testChannel"
directory="/nas/test"
channel="ftpChannel"
auto-create-directory="true"
prevent-duplicates="false"
filter="testFileFilter"
>
<int:poller id="poller" cron="0/30 * * * * *" max-messages-per-poll="1" />
</int-file:inbound-channel-adapter>

Related

Error on JMS Connection using spring integration

We are using a jms message driven adapter with an error-channel to transfer messages from a MQServer :
<int:publish-subscribe-channel id="processChannel1" />
<int:logging-channel-adapter channel="processChannel1" logger-name="log_channel" level="ERROR" expression="payload" />
<int:service-activator input-channel="processChannel1" ref="channelUtils" output-channel="error1" method="treatment" />
<bean id="myListener" class="org.springframework.jms.listener.DefaultMessageListenerContainer" >
<property name="autoStartup" value="false" />
<property name="connectionFactory" ref="connectionFactoryCaching" />
<property name="destination" ref="jmsQueue" />
<property name="maxMessagesPerTask" value="1" />
<property name="receiveTimeout" value="1" />
<property name="backOff" ref="fixedBackOff" />
<property name="sessionTransacted" value="true"/>
<property name="errorHandler" ref="connectionJmsHandler"/>
</bean>
<int-jms:message-driven-channel-adapter id="jmsIn" container="myListener" channel="channelMQ_RMQ" error-channel="processChannel1"/>
When there is an error on the connection , the error-channel is not called because it is not a "message error".
The bean connectionJmsHandler is also not called...
Following log message as ERROR :
2021-03-16 16:47:05.050 [myListener-5669] ERROR o.s.j.l.DefaultMessageListenerContainer - Could not refresh JMS Connection for destination 'queue://QM1/QUEUE.IN.3?CCSID=819&persistence=2&targetClient=1&priority=0' - retrying using FixedBackOff{interval=5000, currentAttempts=0, maxAttempts=1}. Cause: JMSWMQ0018: Failed to connect to queue manager 'QM1' with connection mode 'Client' and host name '10.118.121.78(8081)'.; nested exception is com.ibm.mq.MQException: JMSCMQ0001: WebSphere MQ call failed with compcode '2' ('MQCC_FAILED') reason '2538' ('MQRC_HOST_NOT_AVAILABLE').
2021-03-16 16:47:10.055 [myListener-5669] ERROR o.s.j.l.DefaultMessageListenerContainer - Could not refresh JMS Connection for destination 'queue://QM1/QUEUE.IN.3?CCSID=819&persistence=2&targetClient=1&priority=0' - retrying using FixedBackOff{interval=5000, currentAttempts=1, maxAttempts=1}. Cause: JMSWMQ0018: Failed to connect to queue manager 'QM1' with connection mode 'Client' and host name '10.118.121.78(8081)'.; nested exception is com.ibm.mq.MQException: JMSCMQ0001: WebSphere MQ call failed with compcode '2' ('MQCC_FAILED') reason '2538' ('MQRC_HOST_NOT_AVAILABLE').
2021-03-16 16:47:10.055 [myListener-5669] ERROR o.s.j.l.DefaultMessageListenerContainer - Stopping container for destination 'queue://QM1/QUEUE.IN.3?CCSID=819&persistence=2&targetClient=1&priority=0': back-off policy does not allow for further attempts.
Is there a way to call a specific treatment when having this kind of errors on JMS connection?
Thanks for your help
Regards,
Eric
You can add an ExceptionListener to the DefaultMessageListenerContainer and handle connection exceptions there.

outbound-gateway executes the MV command very slowly

After we upgraded the version of Spring Integration from 4.2.13 to 5.3.1, SFTP Outbound Gateway would often execute the MV command for more than 30 seconds.
We use inbound-stream-channel-adapter to fetch the file and then use outbound-gateway to move it to the Backup folder, below is our xml code snippet
<int:channel id="input">
<int:queue />
</int:channel>
<int:channel id="output">
<int:queue />
<int:interceptors>
<int:wire-tap channel="successHistory"/>
</int:interceptors>
</int:channel>
<int-sftp:inbound-streaming-channel-adapter id="sftInboundAdapter"
session-factory="cachingSftpSessionFactory"
channel="input"
remote-file-separator="/"
remote-directory="/home/box">
<int:poller fixed-delay="2000" max-messages-per-poll="1"/>
</int-sftp:inbound-streaming-channel-adapter>
<int:chain id="chain1" input-channel=" input" output-channel="output">
<int:poller fixed-delay="1000"/>
<int:stream-transformer charset="UTF-8"/>
<int:header-enricher>
<int:error-channel ref="error" overwrite="true"/>
<int:header name="originalPayload" expression="payload"/>
</int:header-enricher>
<int-sftp:outbound-gateway session-factory="cachingSftpSessionFactory"
id="sftpOutboundGateway"
command="mv"
expression="headers.file_remoteDirectory+'/'+headers.file_remoteFile"
rename-expression="headers.file_remoteDirectory+'/backup/'+headers.file_remoteFile"
>
<int-sftp:request-handler-advice-chain>
<ref bean="gatewayLogger"/>
</int-sftp:request-handler-advice-chain>
</int-sftp:outbound-gateway>
<int:transformer expression="headers.originalPayload"/>
</int:chain>
<jms:outbound-channel-adapter channel="output" connection-factory="tibcoEmsConnectionFactory" destination="topic"/>
<bean id="sftpSessionFactory"
class="org.springframework.integration.sftp.session.DefaultSftpSessionFactory">
<property name="host" value="${sftp.host}"/>
<property name="port" value="${sftp.port}"/>
<property name="user" value="${sftp.user}"/>
<property name="password" value="${sftp.password}"/>
<property name="allowUnknownKeys" value="true"/>
<property name="timeout" value="300000"/>
</bean>
<bean id="cachingSftpSessionFactory"
class="org.springframework.integration.file.remote.session.CachingSessionFactory">
<constructor-arg ref="sftpSessionFactory"/>
<constructor-arg value="2"/>
<property name="sessionWaitTimeout" value="300000"/>
</bean>
The Gateway Advice generated logs are as follows, the rename(MV) operation took more than 30 seconds
2020-07-07 12:20:16 INFO [task-scheduler-8] gatewayLogger - ''int-sftp:outbound-gateway' with id='sftpOutboundGateway''#1346093219 - before: {file_remoteHostPort=0.0.0.0, fileName=20200707115747609.xml, errorChannel=bean 'error', file_remoteDirectory=/home/box, originalPayload=<?xml version="1.0" encoding="UTF-8"?>
2020-07-07 12:20:48 INFO [task-scheduler-8] gatewayLogger - ''int-sftp:outbound-gateway' with id='sftpOutboundGateway''#1346093219 - after: org.springframework.integration.support.MessageBuilder#153944c0
As we use a chain for message processing, and session will be released by Stream transformer, if the gateway runs too long , then messages will be pend in queue and related session can’t be released, that will cause message stuck and the adapter will use up all sessions in cache.
It caused by org.springframework.integration.file.remote.RemoteFileUtils#makeDirectories, which is synchronized static method, when there are lots of (S)ftp move operation concurrently and slow speed of network, all requests of AbstractRemoteFileOutboundGateway#mv are queued and observed as very slow speed.
The method signature is as below:
public static synchronized <F> void makeDirectories(String path, Session<F> session, String remoteFileSeparator,
Log logger) throws IOException {
I think the problem is really how you use a CachingSessionFactory. Your cache with that <constructor-arg value="2"/> is too low, therefore there is a high chance of race condition for cached sessions.
You use this session factory in the <int-sftp:inbound-streaming-channel-adapter> which opens a session and keeps it out of the cache until the <int:stream-transformer>. But that happens already on the other thread because your input channel is a QueueChannel. This way you let a thread for <int-sftp:inbound-streaming-channel-adapter> to go and this one is able to take a new session (if any) from the cache. So, when the <int-sftp:outbound-gateway> turn comes, there probably no sessions in the cache to deal with.
Explain, please, why your cache is so low and why do you use QueueChannel just after an inbound polling channel adapter? Not related, but why do you use the QueueChannel for output destination as well?
I think SpringIntegration-5.3.1 has a bug in int-sftp:outbound-gateway as we can easily reproduce sftp gateway execute mv command with long time on certain machine (Our production)
however after we replaced gateway with our own activator, the mv command executed very very fast.
we replaced:
<int-sftp:outbound-gateway session-factory="cachingSftpSessionFactory"
id="sftpOutboundGateway"
command="mv"
expression="headers.file_remoteDirectory+'/'+headers.file_remoteFile"
rename-expression="headers.file_remoteDirectory+'/backup/'+headers.file_remoteFile"
>
with:
<int:header-enricher>
<int:header name="PATH_FROM" expression="headers.file_remoteDirectory+'/'+headers.file_remoteFile"/>
<int:header name="PATH_TO" expression="headers.file_remoteDirectory+'/backup/'+headers.file_remoteFile"/>
</int:header-enricher>
<int:service-activator ref="remoteFileRenameActivator"/>
and here is the source code of our remoteFileRenameActivator
#ServiceActivator
public Message moveFile(Message message, #Header("PATH_FROM") String pathFrom, #Header("PATH_TO") String pathTo) throws IOException {
try (Session session = sessionFactory.getSession();) {
LOGGER.debug(contextName + " " + session.toString() + " is moving file from " + pathFrom + " to " + pathTo);
session.rename(pathFrom, pathTo);
}
return message;
}
The reason of why we think this is a bug because:
We upgraded Spring integration from 4.2.13 to 5.3.1, we didn't meet
such problem in 4.2.13
After we replaced gateway's mv command with
our own implemented mv command, mv command execution was not a
bottleneck anymore.
The issue was still there after we changed
QueueChannel to DirectChannel and increased the session quantity.
We run rename command by command line in client, it is also very fast

outbound-gateway along with outbound-channel-adapter got error

While playing with the code from spring-integration-samples project and trying to implement following flow:
read_file->backup_file->transform_file->write_file
'read_file' is file:inbound-channel-adapter
'backup_file' is 'service-activator' calling java service (doing copy file)
'transform_file' are 2 transformers
'write_file' is file:outbound-channel-adapter that is writing the processed file
Everything is working good until the moment when I did try to implement 'backup_file' step as a file:outbound-gateway
I got the error:
Error while loading fileCopyDemo-file due to No qualifying bean of type 'org.springframework.integration.file.FileWritingMessageHandler' available: expected single matching bean but found 2: org.springframework.integration.file.config.FileWritingMessageHandlerFactoryBean#0,org.springframework.integration.file.config.FileWritingMessageHandlerFactoryBean#1
Here is my config:
<!--read_file-->
<int-file:inbound-channel-adapter auto-startup="true" id="filesIn" channel="filesBackup"
directory="${int.uvrp.original}"
filter="compositeFileFilter" >
<int:poller id="poller" max-messages-per-poll="10" cron="*/10 * * * * *" default="true" />
</int-file:inbound-channel-adapter>
<!--backup_file-->
<int-file:outbound-gateway id="backupGate" request-channel="filesBackup" reply-channel="filesProcessing" directory="file:${int.archive}" />
<!--transform_file-->
<int-file:file-to-bytes-transformer input-channel="filesProcessing" output-channel="bytes" />
<int:transformer input-channel="bytes" output-channel="filesStore" ref="myTransformer1" method="transform" />
<!--write_file-->
<int-file:outbound-channel-adapter id="filesOut" channel="filesStore" directory="${int.processed}" delete-source-files="true"/>
Any ideas?
Thanks for the hint. I have created the project from scratch, copied the configuration file and everything is working as expected.

Spring integration: sftp-inbound-adapter with retry

I implemented a sftp-inbound-adapter which should be launched every day at 2PM and I like doing only one retry after 2 hours if the result is empty (no files received),
How can i do this using the retry mechanism?
My source code is the following:
<int-sftp:inbound-channel-adapter id="sftpInbondAdapter"
auto-startup="true" channel="receiveChannel" session-factory="sftpSessionFactory"
local-directory="file:local-dir" remote-directory="/"
auto-create-local-directory="true" delete-remote-files="false"
filename-regex=".*\.txt$">
<int:poller cron="0 0 14 * * ?"></int:poller>
<int-sftp:request-handler-advice-chain>
<ref bean="retryAdvice" />
</int-sftp:request-handler-advice-chain>
</int-sftp:inbound-channel-adapter>
Starting with 4.2, you can use a Smart Poller to adjust the poll frequency based on whether there was a message or not.
Out of the box, there's the SimpleActiveIdleMessageSourceAdvice which uses a different fixed-delay (via a DynamicPeriodicTrigger) when there's a message Vs. no message.
If you don't like it's algorithm (it uses delays, not a cron expression), you can write a custom subclass of AbstractMessageSourceAdvice.
I am not sure what your retryAdvice bean is, but retry usually only applies if there was an exception.
EDIT
I have created a new advice that's more suitable for you; see the gist here.
You would configure it like this...
...
<int:poller trigger="compoundTrigger">
<int:advice-chain>
<bean class="example.CompoundTriggerAdvice">
<constructor-arg ref="compoundTrigger"/>
<constructor-arg ref="secondary"/>
</bean>
</int:advice-chain>
</int:poller>
...
<bean id="compoundTrigger" class="example.CompoundTrigger">
<constructor-arg ref="primary" />
</bean>
<bean id="primary" class="org.springframework.scheduling.support.CronTrigger">
<constructor-arg value="0 0 14 * * ?" />
</bean>
<bean id="secondary" class="org.springframework.scheduling.support.PeriodicTrigger">
<constructor-arg value="7200000" />
</bean>
When no message is received, we'll use the secondary trigger (2 hours), otherwise, the cron trigger.

Error synchronizing remote to local directory using spring integration

I have have the next error:
ERROR com...ErrorHandler - receiving error response with null parametter org.springframework.integration.MessagingException: Problem occurred while synchronizing remote to local directory
with spring integration 2.2.6, I am using an inbound-channel-adapter with the next configuration:
<int-sftp:inbound-channel-adapter id="sftpInbound"
channel="sftpInboundChannel" session-factory="sftpClientFactory"
auto-startup="true" filename-pattern="*.csv"
auto-create-local-directory="true" delete-remote-files="true"
remote-directory="${ftp.remoteInputDirectory}" local-directory="${ftp.localTempFolder}">
<int:poller fixed-rate="1000" />
</int-sftp:inbound-channel-adapter>
This error occurs randomly. If someone know why this could be happening or maybe if is something in the configuration above.

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