Humans are continuing the endeavor of understanding human intelligence and on the way, the new technologies are born, one of them is information technology. Nowadays the development in the area of artificial intelligence is bringing new ideas to software engineering and enrich it with some powerful tools like deep learning. During the talk, we’ll discuss these tools, the pros, and cons of the implementation and how deep learning and symbolic representation of the problem are related. It will be touched the development and debugging cycle of the deep learning architectures with some examples.
In this talk I presented the technology behind the Fully Automated Store by Checkout Technologies.
The actual version of the store is a result of the work of 12 engineers that spans the areas from hardware
and design to the ultimate deep learning architectures. Will be also discussed the challenges and lessons learnt during
this adventure and what it means to deploy the system which has an AI engine in its core. Creation of the dataset
and the invention of the specific metrics that is capable to measure the accuracy of the entire system will be discussed.
After you’ve followed the familiar Proxmox Ceph Server
manual youl’ll have the brand new Ceph clutser up and running, here I’m collecting the basic tasks
and command you’ll need to manage Ceph cluster.
Ceph structure info
Ceph automatically configure and creates the block device in /dev/rbd/<pool-name>/
root@node1:~# ls-la /dev/rbd/<pool-name>/
drwxr-xr-x 2 root root 560 mar 26 15:05 .
drwxr-xr-x 3 root root 60 mar 23 13:29 ..
lrwxrwxrwx 1 root root 11 mar 26 12:39 vm-101-disk-1 -> ../../rbd0
lrwxrwxrwx 1 root root 11 mar 26 13:42 vm-102-disk-1 -> ../../rbd1
lrwxrwxrwx 1 root root 11 mar 23 19:34 vm-103-disk-1 -> ../../rbd2
lrwxrwxrwx 1 root root 11 mar 24 08:31 vm-103-disk-2 -> ../../rbd3
It is a normal block device that can be mounted in a regular way
root@node1:~# fdisk -l /dev/rbd0
Disk /dev/rbd0: 20 GiB, 21474836480 bytes, 41943040 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 4194304 bytes / 4194304 bytes
Disklabel type: dos
Disk identifier: 0x53332713
Device Boot Start End Sectors Size Id Type
/dev/rbd0p1 * 63 41110334 41110272 19,6G 83 Linux
/dev/rbd0p2 41110335 41929649 819315 400,1M 5 Extended
/dev/rbd0p5 41110398 41913584 803187 392,2M 82 Linux swap
root@node1:~# mount /dev/rbd0p1 /media
Filesystem Size Used Avail Use% Mounted on
/dev/rbd0p1 20G 17G 1,4G 93% /media
root@node1:~# ls-la /media/
drwxr-xr-x 24 root root 4,0K mar 23 13:43 .
drwxr-xr-x 22 root root 4,0K mar 9 18:06 ..
drwxr-xr-x 2 root root 4,0K apr 10 2012 bin
drwxr-xr-x 3 root root 4,0K ago 8 2012 boot
lrwxrwxrwx 1 root root 11 apr 9 2010 cdrom -> media/cdrom
drwxr-xr-x 2 root root 4,0K set 3 2012 dev
drwxr-xr-x 109 root root 12K mar 23 13:43 etc
drwxr-xr-x 11 root root 4,0K mag 21 2013 home
drwxr-xr-x 2 root root 4,0K ott 26 2009 initrd
Config files structure
BLOCK WRITE 4KB
root@node1:~# /usr/bin/rados -p rbd bench -b 4096 300 write -t 32 \--no-cleanup-m 10.0.4.1:6789 -n client.admin --keyring\
/etc/pve/priv/ceph.client.admin.keyring --auth_supported cephx df
Total time run: 300.015640
Total writes made: 614977
Write size: 4096
Object size: 4096
Bandwidth (MB/sec): 8.0071
Stddev Bandwidth: 3.35268
Max bandwidth (MB/sec): 11.9766
Min bandwidth (MB/sec): 0.03125
Average IOPS: 2049
Stddev IOPS: 858
Max IOPS: 3066
Min IOPS: 8
Average Latency(s): 0.0156087
Stddev Latency(s): 0.0442384
Max latency(s): 1.51347
Min latency(s): 0.00396259
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