Cannot update Cluster Dynamic Threadpool Settings, Receiving Error


I'm running Elasticsearch 1.7.6 and have been successfully changing threadpool settings for bulk threadpools as my cluster scales.

It seems recently I made a typo in Marvel when updating the transient threadpool settings for the bulk and now I am getting this error:

[node.settings ] [es1] failed to refresh settings for [org.elasticsearch.threadpool.ThreadPool$ApplySettings@1bfc389b]
org.elasticsearch.common.settings.SettingsException: Failed to get setting group for [threadpool.] setting prefix and setting [threadpool.bulktype] because of a missing '.'

I am performing this update:

PUT _cluster/settings
"transient": {
"threadpool.bulk.type": "fixed",
"threadpool.bulk.size": "8"

Any ideas on how to get this issue resolved as nothing I do changes these settings?


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