Wandering Thoughts archives

2019-03-31:	Our likely ZFS fileserver upgrade plans (as of March 2019) Erasing SSDs with `blkdiscard` (on Linux)
2019-03-29:	Our current approach for significantly upgrading or modifying servers My NVMe versus SSD uncertainty (and hesitation)
2019-03-27:	A new and exciting failure mode for Linux UEFI booting
2019-03-26:	Drifting away from OmniOS (CE)
2019-03-25:	The mystery of my desktop that locks up when it gets too cold
2019-03-24:	Prometheus's `delta()` function can be inferior to subtraction with `offset` Link: What has your microcode done for you lately? A bit more on ZFS's per-pool performance statistics
2019-03-22:	Sometimes the simplest version of a graph is a text table
2019-03-21:	What sorts of good email attachments our users get (March 2019 edition)
2019-03-20:	The types of attachments we see in malware email (March 2019 edition)
2019-03-19:	ZFS Encryption is still under development (as of March 2019)
2019-03-18:	Prometheus subqueries pick time points in a surprising way
2019-03-17:	Going from a bound instance method to its class instance in Python
2019-03-16:	Callable class instances versus closures in Python Staying away from Google Chrome after six months or so
2019-03-14:	The plague of 'you've logged in to our site again' notification emails
2019-03-13:	Peculiarities about Unix's `statfs()` or `statvfs()` API
2019-03-12:	An easy optimization for restricted multi-metric queries in Prometheus
2019-03-11:	Testing Prometheus alert conditions through subqueries
2019-03-10:	What the default query step is for Prometheus subqueries Turning something into a script encourages improving it
2019-03-08:	Exploring how and why interior pointers in Go keep entire objects alive
2019-03-07:	Exploring the mild oddity that Unix pipes are buffered Our problem with Netplan and routes on Ubuntu 18.04
2019-03-06:	Using Prometheus subqueries to look for spikes in rates
2019-03-04:	A surprisingly arcane little Unix shell pipeline example
2019-03-03:	Understanding a change often requires understanding how the code behaves Really understanding diffs requires knowing their context too
2019-03-01:	What you get when you do a DNS A record lookup for a CNAME'd name

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By day for March 2019: 1 3 4 6 7 8 10 11 12 13 14 16 17 18 19 20 21 22 24 25 26 27 29 31; before March; after March.