Hi,

I have Ubuntu server 22.04 with boinc running as daemon, installed from git.

Boinc client reports 97.87GB disk size and 53.76GB free, but I have 2TB disk. So I am unable to get new tasks.
I have no idea why this is happening.
I don't know if it has anything to do with it, but I also installed cvmfs, go and singularity to run native ATLAS tasks.

Any help would be appreciated!

Kind regards,
Nejc



user@user:/$ df -h -T gives:
Filesystem Type Size Used Avail Use% Mounted on
tmpfs tmpfs 51G 60M 51G 1% /run
/dev/mapper/ubuntu--vg-ubuntu--lv ext4 98G 40G 54G 43% /
tmpfs tmpfs 252G 0 252G 0% /dev/shm
tmpfs tmpfs 5.0M 0 5.0M 0% /run/lock
/dev/nvme0n1p2 ext4 2.0G 430M 1.4G 24% /boot
/dev/nvme0n1p1 vfat 1.1G 6.1M 1.1G 1% /boot/efi
tmpfs tmpfs 51G 8.0K 51G 1% /run/user/1000
cvmfs2 fuse 40G 1.8G 39G 5% /cvmfs/cvmfs-config.cern.ch
cvmfs2 fuse 40G 1.8G 39G 5% /cvmfs/atlas.cern.ch
cvmfs2 fuse 40G 1.8G 39G 5% /cvmfs/sft.cern.ch
cvmfs2 fuse 40G 1.8G 39G 5% /cvmfs/atlas-condb.cern.ch
cvmfs2 fuse 40G 1.8G 39G 5% /cvmfs/sft-nightlies.cern.ch
cvmfs2 fuse 40G 1.8G 39G 5% /cvmfs/atlas-nightlies.cern.ch
cvmfs2 fuse 40G 1.8G 39G 5% /cvmfs/unpacked.cern.ch


user@user: sudo fdisk -l gives (shortened):
Disk /dev/loop0: 63.28 MiB, 66355200 bytes, 129600 sectors
Disk /dev/loop1: 63.34 MiB, 66412544 bytes, 129712 sectors
Disk /dev/loop2: 111.95 MiB, 117387264 bytes, 229272 sectors
Disk /dev/loop3: 49.84 MiB, 52260864 bytes, 102072 sectors
Disk /dev/loop4: 53.24 MiB, 55824384 bytes, 109032 sectors
Disk /dev/nvme0n1: 1.82 TiB, 2000398934016 bytes, 3907029168 sectors
Disk model: Samsung SSD 980 PRO 2TB
Disklabel type: gpt

Device Start End Sectors Size Type
/dev/nvme0n1p1 2048 2203647 2201600 1G EFI System
/dev/nvme0n1p2 2203648 6397951 4194304 2G Linux filesystem
/dev/nvme0n1p3 6397952 3907026943 3900628992 1.8T Linux filesystem

Hi,

I have Ubuntu server 22.04 with boinc running as daemon, installed from git.

Boinc client reports 97.87GB disk size and 53.76GB free, but I have 2TB disk. So I am unable to get new tasks.
I have no idea why this is happening.
I don't know if it has anything to do with it, but I also installed cvmfs, go and singularity to run native ATLAS tasks.

Any help would be appreciated!

Kind regards,
Nejc



user@user:/$ df -h -T gives:
Filesystem Type Size Used Avail Use% Mounted on
tmpfs tmpfs 51G 60M 51G 1% /run
/dev/mapper/ubuntu--vg-ubuntu--lv ext4 98G 40G 54G 43% /
tmpfs tmpfs 252G 0 252G 0% /dev/shm
tmpfs tmpfs 5.0M 0 5.0M 0% /run/lock
/dev/nvme0n1p2 ext4 2.0G 430M 1.4G 24% /boot
/dev/nvme0n1p1 vfat 1.1G 6.1M 1.1G 1% /boot/efi
tmpfs tmpfs 51G 8.0K 51G 1% /run/user/1000
cvmfs2 fuse 40G 1.8G 39G 5% /cvmfs/cvmfs-config.cern.ch
cvmfs2 fuse 40G 1.8G 39G 5% /cvmfs/atlas.cern.ch
cvmfs2 fuse 40G 1.8G 39G 5% /cvmfs/sft.cern.ch
cvmfs2 fuse 40G 1.8G 39G 5% /cvmfs/atlas-condb.cern.ch
cvmfs2 fuse 40G 1.8G 39G 5% /cvmfs/sft-nightlies.cern.ch
cvmfs2 fuse 40G 1.8G 39G 5% /cvmfs/atlas-nightlies.cern.ch
cvmfs2 fuse 40G 1.8G 39G 5% /cvmfs/unpacked.cern.ch


user@user: sudo fdisk -l gives (shortened):
Disk /dev/loop0: 63.28 MiB, 66355200 bytes, 129600 sectors
Disk /dev/loop1: 63.34 MiB, 66412544 bytes, 129712 sectors
Disk /dev/loop2: 111.95 MiB, 117387264 bytes, 229272 sectors
Disk /dev/loop3: 49.84 MiB, 52260864 bytes, 102072 sectors
Disk /dev/loop4: 53.24 MiB, 55824384 bytes, 109032 sectors
Disk /dev/nvme0n1: 1.82 TiB, 2000398934016 bytes, 3907029168 sectors
Disk model: Samsung SSD 980 PRO 2TB
Disklabel type: gpt

Device Start End Sectors Size Type
/dev/nvme0n1p1 2048 2203647 2201600 1G EFI System
/dev/nvme0n1p2 2203648 6397951 4194304 2G Linux filesystem
/dev/nvme0n1p3 6397952 3907026943 3900628992 1.8T Linux filesystem

What parameters have you set in the disks tab of the computing options?

Boinc could be reporting the disk space it’s allowed to use rather than the total disk space installed.

cvmfs2 fuse 40G 1.8G 39G 5% /cvmfs/atlas.cern.ch

Just to mention it:
Your CVMFS is configured to use a local disk cache size limit of 40G.
This seems to be far too much if you use it for nothing but ATLAS/Theory from LHC@home.
A cache size limit of 6 GB results in a 99.995 % hitrate for the repository atlas.cern.ch which is the one mostly used.

I set the size of disk usage to 1TB and/or 70% of the disk.

I now configured cvmfs to 6GB.

Will see if anything changes.

Any suggestions are still very much appreciated.


cat global_prefs.xml:
<host_specific/>
<source_project>https://bam.boincstats.com/</source_project>
<mod_time>1684162045</mod_time>
<run_if_user_active>1</run_if_user_active>
<run_gpu_if_user_active>1</run_gpu_if_user_active>
<suspend_if_no_recent_input>0</suspend_if_no_recent_input>
<cpu_scheduling_period_minutes>60</cpu_scheduling_period_minutes>
<idle_time_to_run>3</idle_time_to_run>
<work_buf_min_days>0.1</work_buf_min_days>
<work_buf_additional_days>12</work_buf_additional_days>
<max_cpus>0</max_cpus>
<max_ncpus_pct>60</max_ncpus_pct>
<suspend_cpu_usage>0</suspend_cpu_usage>
<cpu_usage_limit>100</cpu_usage_limit>
<disk_interval>60</disk_interval>
<disk_max_used_gb>1000</disk_max_used_gb>
<disk_max_used_pct>70</disk_max_used_pct>
<disk_min_free_gb>40</disk_min_free_gb>
<vm_max_used_pct>80</vm_max_used_pct>
<ram_max_used_busy_pct>80</ram_max_used_busy_pct>
<ram_max_used_idle_pct>90</ram_max_used_idle_pct>
<max_bytes_sec_down>0</max_bytes_sec_down>
<max_bytes_sec_up>0</max_bytes_sec_up>
<hangup_if_dialed/>
<start_hour>0</start_hour>
<end_hour>0</end_hour>
<run_on_batteries/>
<net_start_hour>0</net_start_hour>
<net_end_hour>0</net_end_hour>
</global_preferences>

BOINC reports the size of the filesystem it is running from (which is where its data directory resides).

97.87GB disk size and 53.76GB free

looks like a pretty good match for

/dev/mapper/ubuntu--vg-ubuntu--lv ext4 98G 40G 54G 43% /

I didn't understand at all what you said Brian. Browsed it, found it and learned something new.

Thank you very much, everyone!

P.S.: if someone stumbles upon same problem (ignorance of linux) -
sudo df -Th
sudo vgdisplay
sudo lvdisplay
sudo lvextend -l +100%FREE -r /dev/ubuntu-vg/ubuntu-lv

https://4sysops.com/archives/extending-lvm-space-in-ubuntu/