Home › Forums › kdb+ › hopen 5001 => ‘hop. OS reports: › Re: hopen 5001 => ‘hop. OS reports:
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https://code.kx.com/q/basics/errors/#:~:text=formed%20select%20query-,hop,-Request%20to%20hopen
hop
Request to
hopen
a handle fails; includes message from OSYour code is trying to open a handle to a process listening on port 5001 but one is not available.