First off, if you haven't by now, I would add this to TA_EMC-isilon/local/app.conf:
is_configured = 1
Several other folks have indicated that they had to do this to get the app to work correctly. But even after I did that, it continued to fail. I looked in /opt/splunk/var/log/isilon/emc_isilon.log, and found several occurrences of this error msg:
2018-02-07 09:40:46,904 ERROR 140461065750272 - EMC Isilon Error: index isilon does not exist
i looked under Settings > Indexes, and sure enough, there isn't one there. So, this app doesn't appear to create the necessary index.
I created the "isilon" index, flagged it as relating to the "EMC Isilon App for Splunk Enterprise" app, and bingo I was able to add an entry from the "Add any of the Cluster node credentials" page.
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