debug logging for dynamodb local

debug_logging_ddb_local.sh

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>
  <Loggers>
    <Logger name="com.amazonaws.services.dynamodbv2.local" level="debug" />
    <Root level="debug">
      <AppenderRef ref="STDOUT"/>
    </Root>
  </Loggers>
</Configuration>
XML

zip -d DynamoDBLocal.jar log4j2.xml

zip -u DynamoDBLocal.jar log4j2.xml

# sqlite.SQLiteDBAccess is noisy
java -Djava.library.path=./DynamoDBLocal_lib -jar DynamoDBLocal.jar | grep -vw "sqlite.SQLiteDBAccess"

This not working on lastest dynamodbLocal realses

Updated log4j2.xml to enable logging in dynamodbLocal releases

<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="WARN">
  <Appenders>
    <Console name="Console" target="SYSTEM_OUT">
      <PatternLayout pattern="%d{HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n"/>
    </Console>
  </Appenders>
  <Loggers>
    <Logger name="com.amazonaws.services.dynamodbv2.local" level="DEBUG">
    	<AppenderRef ref="Console"/>
    </Logger>
     <Logger name="com.amazonaws.services.dynamodbv2.local.shared.access.sqlite.SQLiteDBAccess" level="INFO">
    	<AppenderRef ref="Console"/>
    </Logger>
     <Root level="WARN">
      <AppenderRef ref="Console"/>
    </Root>
  </Loggers>
</Configuration>

@chaixxiv Thanks this helped me a lot!

as well as the answer here:

https://stackoverflow.com/questions/64549078/dynamodb-local-error-statuslogger-log4j2-could-not-find-a-logging-implementatio/65178313#65178313

I provided a docker container with fixed logging: https://hub.docker.com/repository/docker/wernerwws/dynamodb-local-with-logging