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ANNOUNCEMENT

I have moved this over to the Tech Interview Cheat Sheet Repo and has been expanded and even has code challenges you can run and practice against!






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afair

Hey! I saw this has been indexed by the search engines. It is a first draft of a post I ended up publishing on my blog at: Scaling PostgreSQL With Pgpool and PgBouncer

Thanks for stopping by!

PostgreSQL and Pgpool Architecture

GreenRecycleBin

uint16_t udp_checksum(struct udphdr *p_udp_header, size_t len, uint32_t src_addr, uint32_t dest_addr)
{
  const uint16_t *buf = (const uint16_t*)p_udp_header;
  uint16_t *ip_src = (void*)&src_addr, *ip_dst = (void*)&dest_addr;
  uint32_t sum;
  size_t length = len;

  // Calculate the sum
  sum = 0;
  while (len > 1)