Hi, I bring up this solved question because I have the very same problem on my Splunk instance. Was the feature you mention ever introduced? Thank you
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I had the same issue. I fixed it by changing the default settings from
[join]
subsearch_maxout = 50000
subsearch_maxtime = 60
subsearch_timeout = 120
to
[join]
subsearch_maxout = 50000
subsearch_maxtime = 360
subsearch_timeout = 360
in limits.conf
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