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https://issues.apache.org/jira/browse/NIFI-455?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14381334#comment-14381334
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Joseph Witt commented on NIFI-455:
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The bottom line scenario here is when you have a reference dataset that is very
large. Say 8, 16, 64 GB and so on. Many servers could load this in RAM and
give extremely fast lookup times. But storing this within the heap can create
issues with JVM/GC performance. Off heap allows you to fully utilize all
available RAM but avoids the burden on Java.
> create libraries to support off-heap lookups
> --------------------------------------------
>
> Key: NIFI-455
> URL: https://issues.apache.org/jira/browse/NIFI-455
> Project: Apache NiFi
> Issue Type: Improvement
> Components: Extensions
> Reporter: Tony Kurc
> Assignee: Tony Kurc
> Priority: Minor
>
> use offheap storage for lookup of longest prefix matching for ip addresses,
> and key => value type lookups.
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