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From "Franz Forsthofer (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CAMEL-8284) MultiCast in Parallel Processing Mode with StreamCache leads to wrong results
Date Wed, 11 Feb 2015 15:00:24 GMT

     [ https://issues.apache.org/jira/browse/CAMEL-8284?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Franz Forsthofer updated CAMEL-8284:
------------------------------------
    Attachment: 0001-parallel-processable-stream.patch

> MultiCast in Parallel Processing Mode with StreamCache leads to wrong results
> -----------------------------------------------------------------------------
>
>                 Key: CAMEL-8284
>                 URL: https://issues.apache.org/jira/browse/CAMEL-8284
>             Project: Camel
>          Issue Type: Bug
>          Components: camel-core
>    Affects Versions: 2.14.1
>            Reporter: Franz Forsthofer
>             Fix For: Future
>
>         Attachments: 0001-CAMEL-8284-Implement-copy-method-in-NettyChannelBuff.patch,
0001-multicast-with-parallel-processing-and-stream-cachin.patch, 0001-parallel-processable-stream.patch
>
>
> If the multi-cast processor gets as an input a stream cache in the parallel processing
mode, then the stream is read by different threads concurrently. This leads to wrong results.
> The attached patch solves this issue. The idea of the patch is to provide a copy of the
stream cache to each thread. The copy will use the same cache of the original stream cache,
only the stream which accesses the cached data  will be a separate instance. For this, we
introduced the new method
>    copy()
> in the StreamCache class.
> See also discussion in http://camel.465427.n5.nabble.com/Data-Corruption-in-SFTP-in-Parallel-Multicast-branches-td5761673.html#a5761781
> Franz Forsthofer
> SAP SE
> e-mail: franz.forsthofer[at]sap.com



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