![]() However, this comes at a cost of slight delay in transaction commits but less IO in general. This is specially important in highly concurrent system because disk fsync is costly and bypasses the operating system cache. In some database systems for example commits from transactions are grouped and batched for few microseconds/milliseconds so more commits can arrive and the database can flush/fsync the WAL once. We makes decisions like this constantly in software engineering. The second problem is we don’t know if more monkeys are going to fall off the bed, so while the mom waiting, the first monkey will be in pain and will “starve”. Two problems with this approach the first is latency the mom can’t wait, she is worried, she needs immediate answer from the doctor for the first monkey that fell. The mom could decide to wait for all monkeys to fall and call the doctor once. In the face of it is extreme inefficiency in IO with the mom calling the doctor 5 times in span of 3 minutes. This clearly looks like a software engineering problem. This keeps going until all monkeys are no longer on the bed. There is this new toddler song “Five little monkeys jumping on the bed” where it starts with five monkeys jumping on the bed and one falls off the bed and the mom calls the doctor and then another monkey falls and the mom calls the doctor again. Will make a video when I get a chanceĪs a new parent, you get exposed to a whole new world. again so sorry for all my Canadian followers affected. ![]() We still don't know the cause but my guess it might be a bad BGP entry? that's what happened to Cloudflare or FB, could be something different. But if this is your ISP's ASN that connects you to the rest of the World goes down, actual users won't be able to connect. If an ASN goes dark like a Facebook or a Cloudflare that isn't a big deal you can go without using Facebook for a day. So sorry for every one who is affected by this, and kudus to all the engineers at Rogers working to fix this for the past what? 11 hours now? This is a huge deal for all Canadians and businesses affected. Tried a few and none of them can be pinged from the US (not sure if ICMP is disabled or not) One of its ASNs (they have many) is AS812 with over 5 million IP addresses. Rogers Communications, the Canadian ISP is down. May be able to trigger a remote code execution on the machine performingįundamentals of Networking for Effective Backends udemy course (link redirects to udemy with coupon) As a consequence of the memory corruption an attacker Incorrect on such machines and memory corruption will happen during This issue makes the RSA implementation with 2048 bit private keys Implementation for X86_64 CPUs supporting the AVX512IFMA instructions. The OpenSSL 3.0.4 release introduced a serious bug in the RSA We discuss the CVE-2022-2274 OpenSSL Vulnerability.
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