David Kuster davidkuster

## PropertyLogger.java
package io.github.sandornemeth.spring;

import java.util.Arrays;
import java.util.stream.StreamSupport;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.event.ContextRefreshedEvent;
import org.springframework.context.event.EventListener;
import org.springframework.core.env.AbstractEnvironment;

## _summary.md

      
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              February 5, 2020 14:15
            
              
                spark sql timestamp semantics, and how they changed from 2.0.0 to 2.0.1 (see query_output_2_0_0.txt vs query_output_2_0_1.txt) changed by SPARK-16216
              
          
    Spark "Timestamp" Behavior

Reading data in different timezones

Note that the ansi sql standard defines "timestamp" as equivalent to "timestamp without time
zone".  However Spark's behavior depends on both the version of spark and the file format


format \ spark version
<= 2.0.0
>= 2.0.1


## parallel_curl.sh
# do it once
seq 1 | parallel -n0 "curl -H 'Content-Type: application/json' http://httpbin.org/post -X POST -d '{\"url\":\"http://google.com/\"}'"

# do it twice
seq 2 | parallel -n0 "curl -H 'Content-Type: application/json' http://httpbin.org/post -X POST -d '{\"url\":\"http://google.com/\"}'"

# do it 4 times, but at 2 a time
seq 4 | parallel -n0 -j2 "curl -H 'Content-Type: application/json' http://httpbin.org/post -X POST -d '{\"url\":\"http://google.com/\"}'"

# you can also put all your commands into a file
	package io.github.sandornemeth.spring;

	import java.util.Arrays;
	import java.util.stream.StreamSupport;

	import org.slf4j.Logger;
	import org.slf4j.LoggerFactory;
	import org.springframework.context.event.ContextRefreshedEvent;
	import org.springframework.context.event.EventListener;
	import org.springframework.core.env.AbstractEnvironment;
	# do it once
	seq 1 \| parallel -n0 "curl -H 'Content-Type: application/json' http://httpbin.org/post -X POST -d '{\"url\":\"http://google.com/\"}'"

	# do it twice
	seq 2 \| parallel -n0 "curl -H 'Content-Type: application/json' http://httpbin.org/post -X POST -d '{\"url\":\"http://google.com/\"}'"

	# do it 4 times, but at 2 a time
	seq 4 \| parallel -n0 -j2 "curl -H 'Content-Type: application/json' http://httpbin.org/post -X POST -d '{\"url\":\"http://google.com/\"}'"

	# you can also put all your commands into a file