[
https://issues.apache.org/jira/browse/NIFI-5542?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16597473#comment-16597473
]
ASF GitHub Bot commented on NIFI-5542:
--------------------------------------
Github user pepov commented on the issue:
https://github.com/apache/nifi/pull/2970
Some unit tests are failing according to the travis build that are relevant:
```
[ERROR]
testOnConfiguredWhenInitialAdminAndLegacyUsersProvided(org.apache.nifi.authorization.FileAccessPolicyProviderTest)
Time elapsed: 0.114 s <<< ERROR!
java.lang.Exception: Unexpected exception,
expected<org.apache.nifi.authorization.exception.AuthorizerCreationException>
but was<java.lang.NullPointerException>
at
org.apache.nifi.authorization.FileAccessPolicyProviderTest.testOnConfiguredWhenInitialAdminAndLegacyUsersProvided(FileAccessPolicyProviderTest.java:523)
[ERROR]
testOnConfiguredWhenBadLegacyUsersFileProvided(org.apache.nifi.authorization.FileAccessPolicyProviderTest)
Time elapsed: 0.036 s <<< ERROR!
java.lang.Exception: Unexpected exception,
expected<org.apache.nifi.authorization.exception.AuthorizerCreationException>
but was<java.lang.NullPointerException>
at
org.apache.nifi.authorization.FileAccessPolicyProviderTest.testOnConfiguredWhenBadLegacyUsersFileProvided(FileAccessPolicyProviderTest.java:509)
```
https://api.travis-ci.org/v3/job/422545351/log.txt
> Add support for node groups to FileAccessPolicyProvider
> -------------------------------------------------------
>
> Key: NIFI-5542
> URL: https://issues.apache.org/jira/browse/NIFI-5542
> Project: Apache NiFi
> Issue Type: Improvement
> Reporter: Andrew Christianson
> Priority: Major
>
> Currently in FileAccessPolicyProvider, it is possible to specify a set of
> node identities, which are given access to /proxy. This works well for static
> clusters, but does not work so well for dynamic clusters (scaling up/down #
> of nodes) because we don't know in advance what the node identities will be
> or how many there will be.
> In order to support dynamic sets of node identities, add support for
> specifying a "Node Group," for which all identities in the group will be
> granted access to /proxy. A UserGroupProvider can then be implemented to
> gather node identities dynamically from the cluster environment.
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