spinscale

const memoryCronJob = new CronJob("* * * * * *", async () => {
    const formatMemoryUsage = (data : number) => `${Math.round(data / 1024 / 1024 * 100) / 100} MB`;

    const memoryData = process.memoryUsage();

    const memoryUsage = {
        rss: `${formatMemoryUsage(memoryData.rss)} -> Resident Set Size - total memory allocated for the process execution`,
        heapTotal: `${formatMemoryUsage(memoryData.heapTotal)} -> total size of the allocated heap`,
        heapUsed: `${formatMemoryUsage(memoryData.heapUsed)} -> actual memory used during the execution`,
        external: `${formatMemoryUsage(memoryData.external)} -> V8 external memory`,

spinscale

function kubens() {
  ns=$(kubectl get ns | awk '{ print $1 }' | grep -v '^NAME$' | fzf)
  kubectl config set-context --current --namespace=$ns
}

spinscale

# autobahn-api-to-es
#
# Indexes autobahn API metadata into Elasticsearch to use it with Kibana Maps
#
# Original API description https://gist.github.com/LilithWittmann/06bd153317b635e7b622651f5cfd95ea
#
#
# MIT License
# 
# Copyright (c) [2021]

spinscale

exec: /app/openpixel-sqlite-tracker/bin/openpixel-sqlite-tracker

dbs:
  - path: /tmp/sqlite.db
    replicas:
      - type: s3
        region: eu-central-1
        bucket: THE_BUCKET
        path: /db
        access-key-id: AWS_ACCESS_KEY_ID

spinscale

function changeVolume(diff)
  return function()
    local current = hs.audiodevice.defaultOutputDevice():volume()
    local new = math.min(100, math.max(0, math.floor(current + diff)))
    if new > 0 then
      hs.audiodevice.defaultOutputDevice():setMuted(false)
    end
    hs.alert.closeAll(0.0)
    hs.alert.show("Volume " .. new .. "%", {}, 0.5)
    hs.audiodevice.defaultOutputDevice():setVolume(new)

spinscale

##################
# Runtime fields #
##################

GET /

DELETE orders

PUT orders
{

spinscale

# Data is from https://www.sciencedirect.com/science/article/pii/S2352340918315191

filebeat.inputs:
- type: stdin

setup.template.overwrite: true
setup.template.append_fields:
- name: arrival_date
  type: date

spinscale

package de.spinscale.prt;

import org.apache.lucene.analysis.custom.CustomAnalyzer;
import org.apache.lucene.analysis.phonetic.PhoneticFilterFactory;
import org.apache.lucene.search.suggest.FileDictionary;
import org.apache.lucene.search.suggest.Lookup;
import org.apache.lucene.search.suggest.analyzing.AnalyzingSuggester;
import org.apache.lucene.store.Directory;
import org.apache.lucene.store.NIOFSDirectory;
import org.junit.jupiter.api.Test;

spinscale

###################################################
## Boosting scores based on numeric field values ##
###################################################

# Existing solution: function_score query
# Problem: Performance penalty
# Solution: Rescoring, only rescoring top-n documents

# Lucene optimization in Elasticsearch 7: Block MAX WAND
# New query: distance_feature, efficiently skips non-competitive hits

spinscale

DELETE _all

PUT _ingest/pipeline/rename_hostname
{
  "processors": [
    {
      "rename": {
        "field": "hostname",
        "target_field": "host",
        "ignore_missing": true