sandboxing:
Application sandboxing, also called application containerization, is an approach to software development and mobile application management (MAM) that limits the environments in which certain code can execute.
Application sandboxing, also called application containerization, is an approach to software development and mobile application management (MAM) that limits the environments in which certain code can execute.
http://highscalability.com/blog/2013/10/28/design-decisions-for-scaling-your-high-traffic-feeds.html
High Scalability
Design Decisions for Scaling Your High Traffic Feeds - High Scalability -
Guest post by Thierry Schellenbach, Founder/CTO of Fashiolista.com, follow @tschellenbach on Twitter and Github
Fashiolista started out as a hobby project which we built on the side. We had absolutely no idea it would grow into one of the largest online…
Fashiolista started out as a hobby project which we built on the side. We had absolutely no idea it would grow into one of the largest online…
به کمک مقاله های فوق تکنیک های لازم برای پیاده سازی سیستم های توزیع شده با قدرت مقیاس پذیری زیاد را مطالعه کنید
دو نکته
۱- برای کارهای سبک از pull استفاده کنید و برای کارهای سنگین از push
2- برای ذخیره و بازیابی تصویر از تکنیک زیر (پیاده سازی شده در فیسبوک) می توانید بهره گیرید
۱- برای کارهای سبک از pull استفاده کنید و برای کارهای سنگین از push
2- برای ذخیره و بازیابی تصویر از تکنیک زیر (پیاده سازی شده در فیسبوک) می توانید بهره گیرید
Finding a needle in Haystack: Facebook’s photo storage
در این مقاله توضیح داده شده است که چگونه فایل ها را سرو کنید
در این مقاله توضیح داده شده است که چگونه فایل ها را سرو کنید
SLA:
A service level agreement (SLA) is a contract between a service provider (either internal or external) and the end user that defines the level of service expected from the service provider. SLAs are output-based in that their purpose is specifically to define what the customer will receive.
A service level agreement (SLA) is a contract between a service provider (either internal or external) and the end user that defines the level of service expected from the service provider. SLAs are output-based in that their purpose is specifically to define what the customer will receive.
دستورات زیر چه میکنند ؟
# dd if=/dev/zero of=~/file.img bs=1MiB count=10
# losetup --find --show ~/file.img /dev/loop0
# mkfs -t ext2 /dev/loop0
# mount /dev/loop0 /mnt
...
# umount /dev/loop0
# losetup --detach /dev/loop0
# dd if=/dev/zero of=~/file.img bs=1MiB count=10
# losetup --find --show ~/file.img /dev/loop0
# mkfs -t ext2 /dev/loop0
# mount /dev/loop0 /mnt
...
# umount /dev/loop0
# losetup --detach /dev/loop0