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https://issues.apache.org/jira/browse/NIFI-14959?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18020013#comment-18020013
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Andreas Koch commented on NIFI-14959:
-------------------------------------
Yes, it seems the method will load balance to n-1 nodes instead of n nodes.
I repeated the test with 3 nodes:
{code:java}
HashSet<Integer> targets = new HashSet<Integer>();
for (int i = Integer.MIN_VALUE; i < Integer.MAX_VALUE; i++) {
int idx = findIndex(i, 3);
targets.add(idx);
}
System.out.println(targets);
=>[0, 1]{code}
so may be to fix this do
{code:java}
final int index = findIndex(hash, partitions.length +1); {code}
in getPartition.
> CorrelationAttributePartitioner.findIndex always returns 0 if partitions == 2
> -----------------------------------------------------------------------------
>
> Key: NIFI-14959
> URL: https://issues.apache.org/jira/browse/NIFI-14959
> Project: Apache NiFi
> Issue Type: Bug
> Reporter: Andreas Koch
> Priority: Major
>
> Ways to reproduce. Added static to findIndex
>
> {code:java}
> for (int i = Integer.MIN_VALUE; i < Integer.MAX_VALUE; i++) {
> int idx = findIndex(i, 2);
> if (idx != 0) {
> System.out.println(i);
> }
> } {code}
>
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