[jira] Resolved: (CAMEL-2899) out of heap space if remote FTP site has too many files to pick up

["Claus Ibsen (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/activemq/browse/CAMEL-2899?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Claus Ibsen resolved CAMEL-2899.
--------------------------------

    Resolution: Fixed

The {{maxMessagesPerPoll}} option is now applied earlier for the file/ftp components so we avoid creating so many Exchange objects which are then afterwards discarded.

trunk: 960839.

Notice there is no limit in the java.io.File or FTP API to tell it to only list at most X number of files.

> out of heap space if remote FTP site has too many files to pick up
> ------------------------------------------------------------------
>
>                 Key: CAMEL-2899
>                 URL: https://issues.apache.org/activemq/browse/CAMEL-2899
>             Project: Apache Camel
>          Issue Type: Bug
>          Components: camel-ftp
>    Affects Versions: 2.3.0
>            Reporter: Karl Palsson
>            Assignee: Claus Ibsen
>             Fix For: 2.4.0
>
>
> 2010-07-02 11:38:07,439 FATAL [org.apache.camel.component.file.remote.FtpConsumer:CamelThread 10]   - <Consumer Consumer[my_ftp_URI_here caused by: Java heap space>
> java.lang.OutOfMemoryError: Java heap space
> My remote FTP server has ~60k 100 byte files, and the camel endpoint consumer falls over and doesn't start again.  I can use JMX to stop/start the consumer, (it still has status "started") and it will log in to the remote server again, but then fall over with the out of heap space.
> I can work around this by increasing the heap, or by moving some of the files aside,  but I don't think camel should care how many files there are, or at least, I think it should deal with it more gracefully.

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