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https://issues.apache.org/jira/browse/NIFI-14466?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Antonio Sousa updated NIFI-14466:
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Summary: ListenSNMPTrap does not support duplicated OIDs (was:
ListenSNMPTrap does not support duplicated varbinds )
> ListenSNMPTrap does not support duplicated OIDs
> -----------------------------------------------
>
> Key: NIFI-14466
> URL: https://issues.apache.org/jira/browse/NIFI-14466
> Project: Apache NiFi
> Issue Type: Bug
> Components: Extensions
> Affects Versions: 1.28.1
> Reporter: Antonio Sousa
> Priority: Major
>
> When sending a SNMP trap with duplicated OID, {{ListenSNMPTrap}} processor
> silently discards the trap: no f{{{}lowfile{}}} is created and nothing is
> written to the logs.
> Checking the SNMP RFCs, there is no mention of uniqueness constraints for the
> OIDs:
> * [RFC 1157 (SNMPv1)|https://www.rfc-editor.org/rfc/rfc1157#page-19] defines
> a {{VarBindList}} as:
> A sequence of variable bindings, each of which contains an object identifier
> and its value.
> * [RFC 3416 (SNMPv2)|https://www.rfc-editor.org/rfc/rfc3416#page-8]
> similarly defines a {{VarBindList}} as:
> A list of one or more variable bindings. The order of variable bindings in
> the list is preserved.
> So no mention of uniqueness constraints on the OIDs.
> Given this, we think that even if a trap contains duplicated OIDs, a
> {{flowfile}} should still be created. Attributes in that {{flowfile}} should
> be filled with the value of the latest occurrence of the corresponding OID.
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