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Message boards : Number crunching : Old tasks not removed

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BetelgeuseFive
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Message 2589 - Posted: 18 Sep 2015, 16:19:22 UTC
Last modified: 18 Sep 2015, 16:19:47 UTC

Hello folks,

I noticed that on my Raspberry Pi 2 old tasks are not removed.

http://findah.ucd.ie/show_host_detail.php?hostid=108379

All the tasks that were processed since I started this system back in July are still present:

# ls -ltr /var/lib/boinc-client/projects/findah.ucd.ie/ | head -20

-rw-r--r-- 1 boinc boinc 145628 Jul 21 17:33 PFI0380c_4
-rw-r--r-- 1 boinc boinc 146 Jul 21 17:33 PFI0380c_4_a.conf
-rwxr-xr-x 1 boinc boinc 3781673 Jul 21 17:33 vina_1.1_arm-unknown-linux-gnueabihf
-rw-r--r-- 1 boinc boinc 202908 Jul 21 17:33 PF11_0292_1
-rw-r--r-- 1 boinc boinc 145 Jul 21 17:33 PF11_0292_1_a.conf
-rw-r--r-- 1 boinc boinc 146 Jul 21 23:34 PFL2445c_2_a.conf
-rw-r--r-- 1 boinc boinc 264428 Jul 21 23:34 PFL2445c_2
-rw-r--r-- 1 boinc boinc 148 Jul 21 23:34 PF13_0328_2_a.conf
-rw-r--r-- 1 boinc boinc 203548 Jul 21 23:34 PF13_0328_2
-rw-r--r-- 1 boinc boinc 148 Jul 21 23:34 PF11_0183_4_a.conf
-rw-r--r-- 1 boinc boinc 167708 Jul 21 23:34 PF11_0183_4
-rw-r--r-- 1 boinc boinc 65708 Jul 22 01:26 PFB0161c_3
-rw-r--r-- 1 boinc boinc 147 Jul 22 01:26 PFB0161c_3_a.conf

As there are lots of these files the directory already takes more than 300 Mb.
This system only has a small memory card, so I need to take some action before the filesystem is full.

Two questions:

1. Why are these files not removed automatically (works fine for other projects) ?
2. Is it safe to remove the old ones manually ?

Thanks,

Tom

Ananas
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Message 2590 - Posted: 18 Sep 2015, 16:35:10 UTC - in response to Message 2589.
Last modified: 18 Sep 2015, 16:43:38 UTC

...
2. Is it safe to remove the old ones manually ?
...

Definitely no, as they might be referenced by future workunits again.

It would be better to turn off work fetch, let the cache run empty, reset the project and then enable work fetch again.

p.s.: another advantage of a reset now and then is that the request XML files become much smaller for quite a while, until those files pile up again (this saves web traffic)

If you wish you can backup the file vina_1.1_arm-unknown-linux-gnueabihf before you reset and move the backup copy back to the project folder before you re-enable download. If you have one with a higher version number (vina_1.2_... or so), backup that one instead.

Message boards : Number crunching : Old tasks not removed


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