A Git Primer – Under the Hood
These notes assume you’re familiar with the basic functions of Git. The Git repository exists entirely in a single “.git” directory in your project root. Objects in Git are identified by hashes. Blobs –...
Read MoreAuthor: Jay Luong
Disk Benchmarks in Various Configurations
Windows Mirror Raid 1 Seagate 2TB ST32000542AS CC34 Seagate 2TB ST2000DL003-9VT166 CC32 2 x Western Digital 2TB WD20EADS Windows RAID 0 3 x Seagate 1.5TB ST1500DL003-9VT16L Solid State Drives SSD – Samsung SSD 840 EVO 500G...
Read MoreWhat is the Proper Data Type for Storing UUIDs in MySQL?
Posted by Jay Luong | Jul 7, 2015 | Database, MySQL / Percona |
While creating a schema for SNOMED to ICD-10 mapping, I came across the requirement of storing a UUID (128-bit unsigned integer) as the ‘id’ field. 128-bits = 16 bytes so we’ll use BINARY(16). drop table if...
Read MoreHow to Create a Swap File on Google Compute Engine Virtual Machines
Posted by Jay Luong | Mar 4, 2015 | Cloud Computing, Google Cloud Platform |
These are the procedures I followed for Ubuntu 14.04 LTS but should work with other Debian distros. sudo fallocate -l 2G /swapfile sudo chmod 600 /swapfile sudo mkswap /swapfile sudo swapon /swapfile sudo swapon -s Once...
Read MoreTroubleshooting MySQL SSL Replication Problems with Ubuntu 14.04 LTS
Posted by Jay Luong | Mar 4, 2015 | Database, MySQL / Percona |
Let me guess, you’re trying to setup MySQL replication and you end up with errors like the following: ERROR 2026 (HY000): SSL connection error: protocol version mismatch ERROR 2026 (HY000): SSL connection error: ASN: bad...
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