camel-users mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From watcher <patr...@daly.ws>
Subject Re: SFTP rename problems
Date Thu, 15 Apr 2010 14:21:21 GMT

Hi Claus 

Thanks for the quick reply.

The status code 3 is SSH_ERROR_PERMISSION_DENIED (the authenticated user
does not have sufficient permissions to perform the operation.)

http://www.eldos.com/documentation/sbb/documentation/ref_err_sftperrorcodes.html
http://www.eldos.com/documentation/sbb/documentation/ref_err_sftperrorcodes.html 

Yes the problem happens for all other incoming files, restarting the
application seems to repair the problem.
I dont see in the logs any sign of camel disconnecting from the session and
retrying to login.

Most of our clients write to the incoming sftp folder using a temporary
filename before renaming it however that might not be possible to for one of
our clients in the short to medium term.

I didnt think it was a issue as the readlock has work successfully with the
file component and I aware they share a common code base. 



Claus Ibsen-2 wrote:
> 
> Hi
> 
> The SFTP library is returning an exception with status code 3. You may
> dig around what that means.
> 
> When this problem occurs, does the same problem occur on next poll?
> The ftp component have build in self healing, but that is limited to
> the ftp connection/session.
> So in case there is something wrong with the session it re login
> automatic.
> 
> Also you can use readLock=none as uri parameter to not use locks at
> all. You can do this if you do not have a race condition
> where another party is writing a new file, which you then want to
> download.
> 
> Its actually best to let the other party write to another directory
> and then when the file is complete, move it in place.
> Or write using a temporary filename, and then rename when write is
> complete.
> 
> 
> 
> On Thu, Apr 15, 2010 at 1:37 PM, watcher <patrick@daly.ws> wrote:
>>
>> Apache Camel 2.2
>> Windows Server 2003
>>
>> I'm running an application that polls an SFTP server. I works to a point
>> but
>> after some time the applications fails trying to get an exclusive lock on
>> the file. Whick seems to indicate that it is a permission problem.
>> However
>> restarting the application (camel) fixes the issue. Could it be a fault
>> with
>> camel?
>>
>> [code]
>>
>> <camel:camelContext xmlns="http://camel.apache.org/schema/spring">
>>  <camel:routeBuilder ref="myRouter"/>
>>        <camel:endpoint id="printerIncoming"
>> uri="sftp://${printerIncoming}@${ipaddress}?password=password&amp;binary=true&amp;recursive=true&amp;delay=10000&amp;initialDelay=2000&amp;move=.done&amp;knownHostsFile=c://known_host&amp;filter=#myAntFilter"/>
>> </camel:camelContext>
>>
>>
>>        <!-- we use the AntPathMatcherRemoteFileFilter to use ant paths
>> for
>> includes and exlucde -->
>>        <bean id="myAntFilter"
>> class="org.apache.camel.component.file.AntPathMatcherGenericFileFilter">
>>            <property name="includes"
>> value="**/incoming/*.PDF,**/incoming/*.pdf"/>
>>            <property name="excludes" value="**/outgoing/**"/>
>>
>>        </bean>
>> [/code]
>>
>> [code]
>> 15 Apr 2010 10:17:57,077 ERROR [Camel thread 0: SftpComponent]
>> SftpConsumer.log(248) | Caused by:
>> [org.apache.camel.component.file.GenericFileOperationFailedException -
>> Cannot rename file from: user/incoming/test_file.pdf to:
>> test_file.pdf.camelExclusiveReadLock]
>> org.apache.camel.component.file.GenericFileOperationFailedException:
>> Cannot
>> rename file from: user/incoming/test_file.pdf to:
>> test_file.pdf.camelExclusiveReadLock
>>        at
>> org.apache.camel.component.file.remote.SftpOperations.renameFile(SftpOperations.java:205)
>>        at
>> org.apache.camel.component.file.strategy.GenericFileRenameExclusiveReadLockStrategy.acquireExclusiveReadLock(GenericFileRenameExclusiveReadLockStrategy.java:68)
>>        at
>> org.apache.camel.component.file.strategy.GenericFileProcessStrategySupport.begin(GenericFileProcessStrategySupport.java:44)
>>        at
>> org.apache.camel.component.file.strategy.GenericFileRenameProcessStrategy.begin(GenericFileRenameProcessStrategy.java:38)
>>        at
>> org.apache.camel.component.file.GenericFileConsumer.processExchange(GenericFileConsumer.java:221)
>>        at
>> org.apache.camel.component.file.GenericFileConsumer.processBatch(GenericFileConsumer.java:137)
>>        at
>> org.apache.camel.component.file.GenericFileConsumer.poll(GenericFileConsumer.java:103)
>>        at
>> org.apache.camel.impl.ScheduledPollConsumer.run(ScheduledPollConsumer.java:106)
>>        at java.util.concurrent.Executors$RunnableAdapter.call(Unknown
>> Source)
>>        at java.util.concurrent.FutureTask$Sync.innerRunAndReset(Unknown
>> Source)
>>        at java.util.concurrent.FutureTask.runAndReset(Unknown Source)
>>        at
>> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(Unknown
>> Source)
>>        at
>> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(Unknown
>> Source)
>>        at
>> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown
>> Source)
>>        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown
>> Source)
>>        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown
>> Source)
>>        at java.lang.Thread.run(Unknown Source)
>> Caused by: 3:
>>        at
>> com.jcraft.jsch.ChannelSftp.throwStatusError(ChannelSftp.java:2287)
>>        at com.jcraft.jsch.ChannelSftp.rename(ChannelSftp.java:1479)
>>        at
>> org.apache.camel.component.file.remote.SftpOperations.renameFile(SftpOperations.java:202)
>>        ... 16 more
>> [/code]
>> --
>> View this message in context:
>> http://old.nabble.com/SFTP-rename-problems-tp28254146p28254146.html
>> Sent from the Camel - Users mailing list archive at Nabble.com.
>>
>>
> 
> 
> 
> -- 
> Claus Ibsen
> Apache Camel Committer
> 
> Author of Camel in Action: http://www.manning.com/ibsen/
> Open Source Integration: http://fusesource.com
> Blog: http://davsclaus.blogspot.com/
> Twitter: http://twitter.com/davsclaus
> 
> 

-- 
View this message in context: http://old.nabble.com/SFTP-rename-problems-tp28254146p28255938.html
Sent from the Camel - Users mailing list archive at Nabble.com.


Mime
View raw message