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https://issues.apache.org/jira/browse/CAMEL-19254?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17862541#comment-17862541
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Claus Ibsen commented on CAMEL-19254:
-------------------------------------

Hmm its hard to track this on latest code, but I wonder if the azure 
StorageInputStream when converted to StreamCache is closing the stream when 
done. And that this is somehow causes problems later

    public synchronized void close() {
        this.currentBuffer = null;
        this.streamFaulted = true;
        this.lastError = new IOException(Constants.STREAM_CLOSED);
    }


> camel-azure - Azure Blob file download conditionNotMet error
> ------------------------------------------------------------
>
>                 Key: CAMEL-19254
>                 URL: https://issues.apache.org/jira/browse/CAMEL-19254
>             Project: Camel
>          Issue Type: Bug
>          Components: camel-azure
>    Affects Versions: 3.17.0, 3.18.0, 3.19.0, 3.20.3
>            Reporter: Idorasi Paul
>            Priority: Minor
>
> When downloading blobs using the camel component a ConditionNotMet exception 
> is thrown. The condition that is not met is the if-match condition that 
> contains the etag value of the blob. When endpoint polls the file, it 
> attempts to download it in chunks. During the download, if the file is 
> touched, the etag changes and the download fails, after that everything goes 
> to hell. This does not happens on local, I think that downloading the file is 
> much, much faster and this concurrency issue does not occur, but as soon as 
> you switch to a real azure environment the issue will occur every time. To 
> reproduce the error follow the steps: 
>  # Start application in debug mode
>  # Add a breakpoint on StorageInputStream at line 317
>  # Skip first chunk download
>  # Go to azure blob and touch the file (add new metadata) 
>  # Skip second chunk download
>  # Exception is thrown
>  
> Last version that works without this issue is 3.16.0
> [Zulip chat 
> topic|https://camel.zulipchat.com/#narrow/stream/257298-camel/topic/CamelAzureBlob.20endpoint.20prefix]



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