Github user JPercivall commented on the issue:
https://github.com/apache/nifi/pull/1276
+1
Visually verified code and did a contrib check build. In a standalone
instance tested each processor with EL hitting secured and unsecured versions
of ES 2.X. All of them (except for Fetch due to NIFI-3140) worked as expected.
Thank you @mattyb149 I will squash and merge.
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