Issue with Mule FileMessageReceiver - WARN issues

Question

With the following file configuration, the application consistently provides a WARN issue. Please see below for an example of the logs.

WARN  2014-04-15 18:46:59,285 [[processes].accountFlow1.stage1.02] org.mule.transport.file.FileMessageReceiver: Failure trying to remove file /file/file/file.file from list of files under processing
DEBUG 2014-04-15 18:46:59,289 [[processes].accountFlow1.stage1.02] org.mule.api.processor.LoggerMessageProcessor: test1
DEBUG 2014-04-15 18:46:59,291 [[processes].accountFlow1.stage1.02] org.mule.api.processor.LoggerMessageProcessor: *******
DEBUG 2014-04-15 18:46:59,424 [[processes].accountFlow1.stage1.02] org.mule.api.processor.LoggerMessageProcessor: *******
DEBUG 2014-04-15 18:46:59,477 [[processes].accountFlow1.stage1.02] org.mule.api.processor.LoggerMessageProcessor: *******
DEBUG 2014-04-15 18:46:59,583 [[processes].accountFlow1.stage1.02] org.mule.api.processor.LoggerMessageProcessor: *******
DEBUG 2014-04-15 18:46:59,609 [[processes].accountFlow1.stage1.02] org.mule.api.processor.LoggerMessageProcessor: *******
DEBUG 2014-04-15 18:46:59,613 [[processes].accountFlow1.stage1.02] org.mule.api.processor.LoggerMessageProcessor: *******
DEBUG 2014-04-15 18:46:59,658 [[processes].accountFlow1.stage1.02] org.mule.api.processor.LoggerMessageProcessor: *******
DEBUG 2014-04-15 18:46:59,659 [[processes].accountFlow1.stage1.02] org.mule.api.processor.LoggerMessageProcessor: *******
DEBUG 2014-04-15 18:46:59,672 [[processes].accountFlow1.stage1.02] org.mule.api.processor.LoggerMessageProcessor: *******
DEBUG 2014-04-15 18:46:59,684 [[processes].accountFlow1.stage1.02] org.mule.api.processor.LoggerMessageProcessor: *******
DEBUG 2014-04-15 18:46:59,725 [[processes].accountFlow1.stage1.02] org.mule.api.processor.LoggerMessageProcessor: *******
DEBUG 2014-04-15 18:46:59,727 [[processes].accountFlow1.stage1.02] org.mule.api.processor.LoggerMessageProcessor: *******
DEBUG 2014-04-15 18:46:59,735 [[processes].accountFlow1.stage1.02] org.mule.api.processor.LoggerMessageProcessor: *******
WARN  2014-04-15 18:46:59,824 [Finalizer] org.mule.transport.file.ReceiverFileInputStream: Failed to move file from /file/file/processing/file.file to /file/file/archive/file.file

The connectors are setup in the following way:

<file:connector name="InputFileConnector" doc:name="File Connector" workDirectory="${Processing_Path}" 
            workFileNamePattern="#[message.outboundProperties['originalFilename']]" moveToDirectory="${Archive_Path}" 
            moveToPattern="#[message.outboundProperties['originalFilename']]"
            streaming="true" autoDelete="false" validateConnections="true" fileAge="${FileAge}"/>

Inbound-endpoint Configuration:

<file:inbound-endpoint responseTimeout="10000" doc:name="File" path="${Inbound_Path}" pollingFrequency="${PollingFrequency}" connector-ref="InputFileConnector">
            <!-- Add filename-regex-filter to insure files are there to kick off the process -->
            <file:filename-regex-filter pattern="SAMPLE\d+\.FILE" caseSensitive="true"/>
        </file:inbound-endpoint>

I am looking for any insights or suggestions on what is causing this WARN issue in Mule.

Update Change streaming attribute to false, resolves the WARN issue.

Answer 1

Mule has some issues with streaming file endpoints, so you could try your app with streaming="false" in the connector. I don't know exactly what is going on with the Mule file streaming, but I guess it could be something like an open file handle that produces an exception when the file is removed from the processing list.