Monthly Archives: July 2017

Vulcanair 1.0 Training Airplane

I wasn’t aware that Vulcanair bought Partenavia out of bankruptcy in 1998, and has built an EASA-certified Cessna 172 clone, the Vulcanair 1.0, for almost half the price. The 1.0 is a corrosion-proofed metal G500-based glass-cockpit 4-seater with an IO-360 … Continue reading

Posted in Tech | Leave a comment

PSA: Workarounds for CentOS 7.3 Problems with SE Linux 2.5

PSA: If you update to CentOS 7.3 and see odd console or log errors like this resulting in a hung boot: Failed to start Import network configuration from initramfs and/or work still pending FAILED Failed to start Login Service. See … Continue reading

Posted in Linux, Tech | Leave a comment

Air Canada 759 Near-Miss at SFO on July 7, 2017

Update: as of Jan. 14, 2018, there have been 3 incidents in the past 6 months of airliners lining up for the wrong runway at SFO. On July 7, 2017 an Air Canada jet nearly landed on a busy taxiway, … Continue reading

Posted in Tech | Leave a comment

Solr Meetup at Cloudera in Palo Alto

Cloudera hosted another Solr Meetup at their office in Palo Alto. About 30 people attended. Two software engineers from Cloudera did presentations tonite: 1) Michael Sun talked about his nitely Solr microbenchmark and cluster benchmarks. Solr Nightly Benchmarks (SOLR-10317) 2) … Continue reading

Posted in Cloud, Storage, Tech | Leave a comment

Distributed Systems Laws Applied to Distributed Databases

Avery’s Law of Distributed Systems Reliability: “Distributed systems are more reliable when you can get a service from one node OR another. They get less reliable when a service depends on one node AND another. And the numbers combine multiplicatively, … Continue reading

Posted in Cassandra, Cloud, Storage, Tech | Leave a comment