KUDU Docker JAVA API

💡 JDBC 드라이버를 사용할 수 있나요?
Kudu는 SQL 엔진이 아니라 단독 사용은 불가하나 함께 사용되는 SQL 엔진에 따라 사용할 수 있기에 애플리케이션 개발을 위해서는 Client API를 사용하거나 SQL 엔진과 함께 사용하여야 한다. 해당 예제는 Kudu 단독으로 사용하는 Java API에 대한 설명이다.

Quick Start

https://github.com/apache/kudu/tree/master/examples/java/java-example

다른 서버 Docker Kudu 사용

로컬 서버 Docker Kudu는 localhost로 바로 붙으면 되지만 다른 서버 Docker Kudu는 Docker Hosts에 kudu-master 설정이 필요하다.

Kudu rpc_address 세개 모두 hosts 파일에 작성

# 파일 위치 : C:\\Windows\\System32\\drivers\\etc\\hosts

# Copyright (c) 1993-2009 Microsoft Corp.
#
# This is a sample HOSTS file used by Microsoft TCP/IP for Windows.
#
# This file contains the mappings of IP addresses to host names. Each
# entry should be kept on an individual line. The IP address should
# be placed in the first column followed by the corresponding host name.
# The IP address and the host name should be separated by at least one
# space.
#
# Additionally, comments (such as these) may be inserted on individual
# lines or following the machine name denoted by a '#' symbol.
#
# For example:
#
#      102.54.94.97     rhino.acme.com          # source server
#       38.25.63.10     x.acme.com              # x client host

# localhost name resolution is handled within DNS itself.
#	127.0.0.1       localhost
#	::1             localhost
# Added by Docker Desktop
192.168.10.XXX host.docker.internal
192.168.10.XXX gateway.docker.internal
192.168.10.XXX kudu-master-1 # Kudu rpc_address
192.168.10.XXX kudu-master-2 # Kudu rpc_address
192.168.10.XXX kudu-master-3 # Kudu rpc_address
# To allow the same kube context to work on the host and the container:
XXX.X.X.X kubernetes.docker.internal
# End of section

Kudu Master Addrees 작성

private static final String DOCKER_URL = "192.168.10.204";
private static final String KUDU_MASTERS = System.getProperty("KUDU_MASTERS", DOCKER_URL+":7051,"+DOCKER_URL+":7151,"+DOCKER_URL+":7251");

//OR

List<String> masterAddresses = new ArrayList<>();
masterAddresses.add("192.168.10.204:7051");
masterAddresses.add("192.168.10.204:7151");
masterAddresses.add("192.168.10.204:7251");

pom.xml

# 파일 위치 : C:\Windows\System32\drivers\etc\hosts

# Copyright (c) 1993-2009 Microsoft Corp.
#
# This is a sample HOSTS file used by Microsoft TCP/IP for Windows.
#
# This file contains the mappings of IP addresses to host names. Each
# entry should be kept on an individual line. The IP address should
# be placed in the first column followed by the corresponding host name.
# The IP address and the host name should be separated by at least one
# space.
#
# Additionally, comments (such as these) may be inserted on individual
# lines or following the machine name denoted by a '#' symbol.
#
# For example:
#
#      102.54.94.97     rhino.acme.com          # source server
#       38.25.63.10     x.acme.com              # x client host

# localhost name resolution is handled within DNS itself.
#	127.0.0.1       localhost
#	::1             localhost
# Added by Docker Desktop
192.168.10.XXX host.docker.internal
192.168.10.XXX gateway.docker.internal
192.168.10.XXX kudu-master-1 # Kudu rpc_address
192.168.10.XXX kudu-master-2 # Kudu rpc_address
192.168.10.XXX kudu-master-3 # Kudu rpc_address
# To allow the same kube context to work on the host and the container:
XXX.X.X.X kubernetes.docker.internal
# End of section

Error Log 한글 깨짐

slf4j라이브러리 호환성 문제로 Java Version을 1.8에서 11로 올렸더니 한글이 깨지지 않았다.