[jira] [Resolved] (NIFI-7002) Handle large files internally in EC toolkit

["David Handermann (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/NIFI-7002?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

David Handermann resolved NIFI-7002.
------------------------------------
    Fix Version/s: 1.13.0
       Resolution: Fixed

> Handle large files internally in EC toolkit
> -------------------------------------------
>
>                 Key: NIFI-7002
>                 URL: https://issues.apache.org/jira/browse/NIFI-7002
>             Project: Apache NiFi
>          Issue Type: Sub-task
>          Components: Tools and Build
>    Affects Versions: 1.10.0
>            Reporter: Andy LoPresto
>            Priority: Major
>              Labels: encryption, heap, security, streaming, toolkit
>             Fix For: 1.13.0
>
>
> The EC toolkit cannot handle large flow definition files (>100 MB uncompressed) due to its use of {{String}} to hold the XML content internally through frequent manipulations. As Strings are immutable in Java, this causes a lot of heap usage and duplication. The read/write to the file system also operates on the String directly rather than perform a streaming read/write. 
> We should change the internal representation of the file content (for all files) to be a {{BufferedInputStream}} or other similar stream representation rather than a String. We should test with very large files (1 GB) and clearly provide instructions and warnings if the file size exceeds that. 
> The logic of value encryption/replacement will have to change to handle this approach. 



--
This message was sent by Atlassian Jira
(v8.3.4#803005)