How to revert to an older HostID number?
You've nurtured your low hostID number for a couple of years and all of a sudden BOINC decides it's time you got a newer one. Is it possible to revert to the older number? Well yes, here's how:
- Make sure you have no tasks in your queue (Finish & Upload, abort, report them all)
- Go to the web site of the project, your list of computers and find your old Host ID number.
- Stop and Close BOINC.
- Edit client_state.xml, find the <hostid> tags and replace the number here with the old ID.
- Find the <rpc_seqno> tag and increment the number here with one or two.
- Save client_state.xml
- Restart BOINC.
Now whatever you do, do not merge the hostIDs on the web site, or else you'll be stuck with the higher ID number. Just wait for all the tasks in the new ID's number to time out, then delete the ID when it has no tasks listed anymore.
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