Good point, I noticed that as well. In my case I decided to simply reset the project. By doing that, the client removed all unnecessary stuff from the directory you mentioned and downloaded only what was necessary. In few cases I gained more than 200MB per client.

Then the client becomes obtrusive. BOINC has introduced cleanup activities on people who think they can install and forget the client. I'm not understanding what you are saying about the client not doing a good job of cleaning these up. How is the client supposed to know that it is supposed to clean these up? It doesn't know the files have been deprecated unless something (server) tells it so. Are you saying that the server did tell the client that they were not needed and it failed to delete them? what we have here is is a disk storage leak. These files are in addition to the job_log_<project_url>.txt that seems to grow unbounded. I have one now that is 20MB and growing on a machine with 32 threads running fast running jobs. With 17 machines, is someone expecting we do yearly cleanup activities so we don't accumulate almost 1GB of junk? Beta11 was just one I picked as it was a CEP beta but there about 6 or 7 other betas out there just sitting around also. Each one has an executable associated with it

Thanks Uplinger/Seippel,

I guess it is what it is.... As an "old" system administrator / system programmer I have my machines setup where they don't fail often and hardly ever require software re-installation. Disks are in a RAID 1 config and are hot-swappable so the machine doesn't stop if a disk fails. So far, never had both fail at the same time. I just noticed that the directories were getting close to 6GB in size and started looking around and that is when I found the older stuff. I'm also running MIP which downloads larger files relative to the other projects and, being a 32 thread machine, it downloads several hundred of them. I'll probably setup something towards the end of the year using cron and the distributed shell so I don't have to go touch each machine one at a time.