dehora

SWIM Resources

Papers/Writing/Videos

• SWIM: Scalable Weakly-consistent Infection-style Process Group Membership Protocol: the original paper and fairly approachable.

• The Swim membership protocol: well written introduction to SWIM.

• Swim overview. Talk from Armon Dadgar from HashiCorp.

dehora

WebDav put the 207 multi-status response code into the 2xx class regardless of per item errors, because for its usecase the top level response class don't matter. Also none of the error classes were a clear winner over 2xx. Even a batch with all failed items gets mapped to a success level code - but what really matters in Dav are the per item codes.

   Although '207' is used as the overall response status code, the
   recipient needs to consult the contents of the multistatus response
   body for further information about the success or failure of the
   method execution.  The response MAY be used in success, partial
   success and also in failure situations.

dehora

# find docker
eval "$(docker-machine env default)"

# bounce docker
docker-machine restart default 

# blitz containers
docker rm $(docker ps -a -q)

# blitz images

dehora

cd ~/projects/bin/dynamodb

cat > log4j2.xml <<- XML
<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="fatal">
  <Appenders>
    <Console name="STDOUT" target="SYSTEM_OUT">
      <PatternLayout pattern="%d %-5p [%t] %C{2} (%F:%L) - %m%n"/>
    </Console>
    </Appenders>

dehora

git clone https://github.com/google/protobuf.git
cd protobuf
git checkout v3.0.0-alpha-3.1
brew install automake
./autogen.sh
./configure
make
sudo make install

dehora

package net.dehora.kafka.scala

import java.util.Properties

import kafka.producer.{KeyedMessage, Producer, ProducerConfig}

object KafkaTestProducer {

  def main(args: Array[String]): Unit = {
    val producer = createProducer()

dehora

git clone https://github.com/apache/samza-hello-samza.git
cd samza-hello-samza
git checkout master
rm -rf deploy/*
bin/grid bootstrap
mvn clean package
rm -rf deploy/samza
tar -xvf target/hello-samza-0.8.0-dist.tar.gz -C deploy/samza
deploy/samza/bin/run-job.sh --config-factory=org.apache.samza.config.factories.PropertiesConfigFactory --config-path=file://$PWD/deploy/samza/config/wikipedia-feed.properties
deploy/samza/bin/run-job.sh --config-factory=org.apache.samza.config.factories.PropertiesConfigFactory --config-path=file://$PWD/deploy/samza/config/wikipedia-parser.properties

dehora

package io.intercom.api.secure;

import org.apache.commons.codec.binary.Hex;

import javax.crypto.Mac;
import javax.crypto.spec.SecretKeySpec;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.util.Base64;

dehora

java -XX:+PrintFlagsFinal -version
[Global flags]
    uintx AdaptiveSizeDecrementScaleFactor          = 4               {product}
    uintx AdaptiveSizeMajorGCDecayTimeScale         = 10              {product}
    uintx AdaptiveSizePausePolicy                   = 0               {product}
    uintx AdaptiveSizePolicyCollectionCostMargin    = 50              {product}
    uintx AdaptiveSizePolicyInitializingSteps       = 20              {product}
    uintx AdaptiveSizePolicyOutputInterval          = 0               {product}
    uintx AdaptiveSizePolicyWeight                  = 10              {product}

dehora

java -XX:+PrintFlagsFinal -version