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IP21 historical download (HLOAD) - Coggle Diagram
IP21 historical download (HLOAD)
LOG
FILENAME FORMAT
plant-code.tag-name.tag-pos.starting-date.csv.gz
ALGO
if readSize = 100K, then update dt1 to most recent date in the block just read and repeat process
read entire data for that tag from date dt1 to dt2
for each tag group (e.g., tag 0-99)
concurrency
N processes at a time
tags 200-299 from date dt1 to dt2
tags 300-399 from date dt1 to dt2
tags 100-199 from date dt1 to dt2
tags 400-499 from date dt1 to dt2
tags 0-99 from date dt1 to dt2
tags 500-599 from date dt1 to dt2
LIMIT
network throttling
plant throttling
network traffic
local client, VM resources
max performance
same cfg/env as streaming agent
VM closest to source of data with maximum resources
role: "AGENT"
CFG
plant VM
central server
general VM
dedicated VM
local client