Category Archives: Tech

Technology

Cassandra vnodes Streaming Reliability Calculator

The Cassandra database has a setting in cassandra.yaml, num_tokens, for the number of vnodes. num_tokens is the number of partitions to use per host, and thus the number of parallel streams to use for data updates. The default was 256 … Continue reading

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Postgres Monitoring Script pg_glance.sh Available

I wrote a small performance monitoring script for Postgres during the Super Bowl on Sunday called pg_glance. You can download it from my github project pg_glance. Getting Started with pg_glance It’s easy to get started … If you’re remotely monitoring … Continue reading

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Super Bowl LIII 2019

I watched Super Bowl LIII on TV. The New England Patriots won over the Los Angeles Rams 13-3. Low-scoring first half, but it picked up in the 4th quarter. Still ended up being the lowest scoring game in history. Some … Continue reading

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Rare snow rollers spotted in field near Marlborough

Rare snow rollers spotted in field near Marlborough

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Tonga Fiber Cut 2019

Imagine your whole country’s Internet going dark. Kudos to the private ISP owners in Tonga who financed and organized a solution while the fiber is repaired. Bali is another island in a similar situation, at 100% electrical and Internet capacity … Continue reading

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