Progressive Locks : fast, upgradable read/write locks
Context A few years after I created the Elastic Binary Trees (ebtree), I started to get some feedback from users who needed to use them in multi-threaded environments, asking if an MT-safe version was available. By then, nothing was available, and all I could suggest them was to place some locks around all the tree manipulation code. While this generally works well, it was sub-optimal because thes
Nginx proxy cache invalidating request to s3
I have set up a proxy from my application server to a private s3 bucket to cache requests. I was having some trouble with it where s3 was rejecting my download requests (403 forbidden) and after some experimentation it seems that disabling cacheing allows the valid request to go through. But the entire purpose of the proxy is as a cache. I guess the proxy is altering the request in some way but I
Nginx as proxy for Amazon S3 (Example)
@cbess CloudFrount CDN is not feature of S3! CloudFront can use S3 just as origin. For some reason CDN is not an option for certain business purposes, such data privacy, specific geo-location (if should not be replicated to another regions). @mikhailov Correct, S3 is not a CDN. However, my point was that you reduce the scalability by having all traffic diverge to your server. Meaning, you take on
Using nginx to Reverse Proxy and Cache S3 Objects | Danny Berger
My most recent project for TLE has been focused on making the infrastructure much more "cloud-friendly" and resilient to failures. One step in the project was going to require that more than one version might be running at a given time (typically just while a new version is still being rolled out to servers). The application itself doesn't have an issue with that sort of transition period, however
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