No. It is on the universal forwarder. The location of fishbucket on forwarder is, $SPLUNK_HOME/var/lib/splunk/fishbucket .
And I just realized that, Splunk no longer lets you look at the fishbucket index but it's purpose is still the same (to keep track of pointers).
From another accepted answer,
The big problem with the fishbucket stuff that Andrea wrote about is that it does not apply in 4.x and up. It's accurate if you have a 3.x forwarder, but 4.x no longer stores the data in a Splunk index (it wasn't a good idea in the first place, though it was convenient for some purposes), but rather in the splunk_private_db inside the fishbucket index location. You can kind of examine the data using the $SPLUNK_HOME/bin/btprobe tool, but it's not that helpful, in particular because we are now only storing the hash and position, and not recording any of the other information that used to be in the fishbucket index.
I think there might be some plans to add back some tools and info to get some of this functionality back, but you might want to file ERs on it.
I updated my answer above.
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