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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (NIFI-3055) StandardRecordWriter can throw UTFDataFormatException
Date Fri, 03 Feb 2017 21:08:51 GMT

    [ https://issues.apache.org/jira/browse/NIFI-3055?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15852126#comment-15852126
] 

ASF GitHub Bot commented on NIFI-3055:
--------------------------------------

Github user asfgit closed the pull request at:

    https://github.com/apache/nifi/pull/1469


> StandardRecordWriter can throw UTFDataFormatException
> -----------------------------------------------------
>
>                 Key: NIFI-3055
>                 URL: https://issues.apache.org/jira/browse/NIFI-3055
>             Project: Apache NiFi
>          Issue Type: Bug
>    Affects Versions: 1.0.0, 0.7.1
>            Reporter: Brandon DeVries
>            Assignee: Joe Skora
>
> StandardRecordWriter.writeRecord()\[1] uses DataOutputStream.writeUTF()\[2] without checking
the length of the value to be written.  If this length is greater than  65535 (2^16 - 1),
you get a UTFDataFormatException "encoded string too long..."\[3].  Ultimately, this can result
in an IllegalStateException\[4], -bringing a halt to the data flow- causing PersistentProvenanceRepository
"Unable to merge <prov_journal> with other Journal Files due to..." WARNings.
> Several of the field values being written in this way are pre-defined, and thus not likely
an issue.  However, the "details" field can be populated by a processor, and can be of an
arbitrary length.  -Additionally, if the detail filed is indexed (which I didn't investigate,
but I'm sure is easy enough to determine), then the length might be subject to the Lucene
limit discussed in NIFI-2787-.
> \[1] https://github.com/apache/nifi/blob/master/nifi-nar-bundles/nifi-provenance-repository-bundle/nifi-persistent-provenance-repository/src/main/java/org/apache/nifi/provenance/StandardRecordWriter.java#L163-L173
> \[2] http://docs.oracle.com/javase/7/docs/api/java/io/DataOutputStream.html#writeUTF%28java.lang.String%29
> \[3] http://stackoverflow.com/questions/22741556/dataoutputstream-purpose-of-the-encoded-string-too-long-restriction
> \[4] https://github.com/apache/nifi/blob/5fd4a55791da27fdba577636ac985a294618328a/nifi-nar-bundles/nifi-provenance-repository-bundle/nifi-persistent-provenance-repository/src/main/java/org/apache/nifi/provenance/PersistentProvenanceRepository.java#L754-L755



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