Where do lost tasks come from and why so many?

Joseph Stateson
Joseph Stateson
Joined: 7 May 07
Posts: 173
Credit: 2,947,988,646
RAC: 1,233,895
Topic 220545

I restarted boinc on one of my systems.  Had been running a SETI benchmark program.  I checked the event log after about a couple of hours and it was at over 8000 lines long (this was Boinctasks event log).  The vast majority** were messages about resent tasks.  Occasionally I would see maybe 5 or 6 in a row a message like "already reported".  There were very few of those compared to the lost ones.  I did see a strange error message that I had seen only once before several months ago "two instances of scheduler running" which I suspect is not supposed to happen.

There tasks for the computer are here


I see a total of 4300 tasks completed or being worked on.  Three days ago there were about 8000+ tasks download as "lost tasks" mentioned in the event log.  Maybe this is a problem with having two "schedulers" running.  Rebooting seems to have stopped the lost task message.


** I filter out all routine messages using a custom Boinc client.  Typically only 200 messages are ever displayed at any time no matter hbnow long I leave the log up on the display so I was a real shock to see 8000+

Keith Myers
Keith Myers
Joined: 11 Feb 11
Posts: 4,753
Credit: 17,686,966,272
RAC: 5,713,190

Lost tasks come from the

Lost tasks come from the scheduler not getting the ack from the client that the task was successfully received.


Comment viewing options

Select your preferred way to display the comments and click "Save settings" to activate your changes.