article thumbnail

Consistent caching mechanism in Titus Gateway

The Netflix TechBlog

We introduce a caching mechanism in the API gateway layer, allowing us to offload processing from singleton leader elected controllers without giving up strict data consistency and guarantees clients observe. When a new leader is elected it loads all data from external storage. The cache is kept in sync with the current leader process.

Cache 224
article thumbnail

Designing Instagram

High Scalability

Firstly, the synchronous process which is responsible for uploading image content on file storage, persisting the media metadata in graph data-storage, returning the confirmation message to the user and triggering the process to update the user activity. Fetching User Feed. Sample Queries supported by Graph Database. Optimization.

Design 334
Insiders

Sign Up for our Newsletter

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Trending Sources

article thumbnail

How It Works (It Just Runs Faster): Non-Volatile Memory SQL Server Tail Of Log Caching on NVDIMM

SQL Server According to Bob

Note: We received feedback that there was some confusion on us calling this functionality “tail of the log caching” because our documentation and prior history has referred to the tail of the log as the portion of the hardened log that has not been backed up. Block storage is what you think of today as disk access.

Cache 40
article thumbnail

SQL Server On Linux: Forced Unit Access (Fua) Internals

SQL Server According to Bob

Device level flushing may have an impact on your I/O caching, read ahead or other behaviors of the storage system. Neal, Matt, and others from Windows Storage, Windows Azure Storage, Windows Hyper-V, … validating Windows behaviors. · Any storage device that can survive a power outage. Starting with the Linux 4.18

Servers 90
article thumbnail

The Back-to-Basics Readings of 2012 - All Things Distributed

All Things Distributed

Jul 4 - Leases: An efficient fault-tolerant mechanism for distributed file cache consistency , Gray, Cary, and David Cheriton, Vol. Aug 24 - The Five-Minute Rule Ten Years Later, and Other Computer Storage Rules of Thumb , Jim Gray and Goetz Graefe, ACM SIGMOD Record 26 (4): 63â??68, Saltzer, D. Reed, and D. Lorie, G.F. Nijssen ed.,

article thumbnail

Content Management Systems of the Future: Headless, JAMstack, ADN and Functions at the Edge

Abhishek Tiwari

In the CMS selection process, developer experience is not a factor, although successful implementation and ongoing maintenance require developer friendly tooling and support for modern software engineering practices. Most of cloud object/blob storage services have native support for static site hosting.

Systems 63
article thumbnail

SQL Server on IoT Edge and Developer Machines – Smaller Footprint

SQL Server According to Bob

For example, Azure SQL Database Edge can already use TSQL Predict Machine Learning (ML) and Column Storage. The lock manager has partitions, lock block cache and other structures. Reduce the number of partitions and size of the cache. IO Request Caches. SQLPAL may cache I/O request structures with each thread.

IoT 61