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https://issues.apache.org/jira/browse/NIFI-12923?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17839080#comment-17839080
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ASF subversion and git services commented on NIFI-12923:
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Commit 5462e69c96671954453e1a658795ac0f08a95012 in nifi's branch
refs/heads/support/nifi-1.x from Balázs Gerner
[ https://gitbox.apache.org/repos/asf?p=nifi.git;h=5462e69c96 ]
NIFI-12923 Added append avro mode to PutHDFS
NIFI-12923 remove var keyword
NIFI-12923 change property name
NIFI-12923 Added property dependency for append_mode
Signed-off-by: Matt Burgess <[email protected]>
NIFI-12923: Fixed issues during backport to 1.x
> PutHDFS to support appending avro data
> --------------------------------------
>
> Key: NIFI-12923
> URL: https://issues.apache.org/jira/browse/NIFI-12923
> Project: Apache NiFi
> Issue Type: Improvement
> Reporter: Balázs Gerner
> Assignee: Balázs Gerner
> Priority: Major
> Time Spent: 2h
> Remaining Estimate: 0h
>
> The goal of this ticket is to extend the PutHDFS processor with the ability
> to append avro records. The processor already provides an option to set
> 'append' as conflict resolution strategy, but that does not work correctly in
> case of avro files, because the serialized avro file cannot be deserialized
> again (because the binary content is invalid).
> Some notes about the implementation:
> * The user needs to explicitly select avro as file format and append as
> conflict resolution mode to enable 'avro append' mode, otherwise regular
> append mode will work just as before. There is no auto detection of mimetype
> for the incoming flowfile.
> * The records of the incoming flowfile and the ones in the existing avro
> file need to conform to the same avro schema, otherwise the append operation
> fails with incompatible schema.
> * The 'avro append' mode should only work when compression type is set to
> 'none', if any other compression type is selected in 'avro append' mode the
> user should get a validation error.
> The changes will have to be added to *support/nifi-1.x* branch also.
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