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https://issues.apache.org/jira/browse/NIFI-4099?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16071305#comment-16071305
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ASF GitHub Bot commented on NIFI-4099:
--------------------------------------
Github user trkurc commented on a diff in the pull request:
https://github.com/apache/nifi/pull/1941#discussion_r125164368
--- Diff:
nifi-nar-bundles/nifi-snmp-bundle/nifi-snmp-processors/src/main/java/org/apache/nifi/snmp/processors/SNMPGetter.java
---
@@ -84,17 +83,21 @@ public ResponseEvent get() {
* @return the list of {@link TreeEvent}
*/
public List<TreeEvent> walk() {
- TreeUtils treeUtils = new TreeUtils(this.snmp, new
DefaultPDUFactory());
- @SuppressWarnings("unchecked")
- List<TreeEvent> events = treeUtils.getSubtree(this.target,
this.oid);
- return events;
+ DefaultPDUFactory pduFactory = new DefaultPDUFactory();
+
+ // BEGIN WORKAROUND - For
http://oosnmp.net/pipermail/snmp4j/2016-October/005749.html
--- End diff --
Great comment! For maintainability, do you think it would be helpful to put
a comment in the pom to revisit this code if the snmp4j version is updated?
> SNMP processors cannot be restarted with SNMPv3 & security
> ----------------------------------------------------------
>
> Key: NIFI-4099
> URL: https://issues.apache.org/jira/browse/NIFI-4099
> Project: Apache NiFi
> Issue Type: Bug
> Components: Extensions
> Affects Versions: 1.4.0
> Reporter: Lars Francke
> Assignee: Lars Francke
> Labels: snmp
>
> The SNMP processors currently fail when stopped & started again because
> snmpTarget is not set to null and only if it is are the user credentials
> added to the current USM/Engine.
> So what happens is that SNMP4j complains that there is no username.
> I'll provide a patch that fixes this.
> In addition I'd like to update SNMP4J from the version that's being used 1.x
> (from 2009) to 2.5.6 from 2017. And I'd love to also do a code cleanup run.
> I'd prefer to have it all in one patch (it still won't be large) but if
> really needed I can separate it out into three patches.
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