Not able to delete old data from database

[priyamalik]

I was following below link for pruning.
https://github.com/csirtgadgets/massive-octo-spice/wiki/Pruning-the-ElasticSearch-database

(1) apt-get -y install python-pip
output>> it was already installed.

(2) sudo pip install elasticsearch-curator
Output>>
Requirement already satisfied (use --upgrade to upgrade): elasticsearch-curator in /usr/local/lib/python2.7/dist-packages
Requirement already satisfied (use --upgrade to upgrade): elasticsearch<3.0.0,>=2.4.0 in /usr/local/lib/python2.7/dist-packages (from elasticsearch-curator)
Requirement already satisfied (use --upgrade to upgrade): click>=6.0 in /usr/local/lib/python2.7/dist-packages (from elasticsearch-curator)
Requirement already satisfied (use --upgrade to upgrade): pyyaml>=3.10 in /usr/local/lib/python2.7/dist-packages (from elasticsearch-curator)
Requirement already satisfied (use --upgrade to upgrade): voluptuous>=0.9.3 in /usr/local/lib/python2.7/dist-packages (from elasticsearch-curator)
Requirement already satisfied (use --upgrade to upgrade): certifi>=2016.09.26 in /usr/local/lib/python2.7/dist-packages (from elasticsearch-curator)
Requirement already satisfied (use --upgrade to upgrade): setuptools>=0.6b1 in /usr/local/lib/python2.7/dist-packages (from voluptuous>=0.9.3->elasticsearch-curator)
Cleaning up...

(3) /usr/local/bin/curator --host localhost --master-only delete indices --prefix cif.observables --older-than 3 --time-unit days --timestring '%Y.%m.%d'
output>>Error: no such option: --host

Please help.

Thanks and Regards,
Priya

[wesyoung]

you need to match up elastic curator with the correct version of elasticsearch (1.4). newer versions of elastic curator will not work with older versions of elastic search.