evan's personal notes
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# 查询可用的openjdk
apt-cache search openjdk
# 安装jdk11和jre11
sudo apt install openjdk-11-jdk openjdk-11-jre
# 使用阿里云镜像下载flink二进制 速度快
# --no-check-certificate是跳过认证
wget --no-check-certificate https://mirrors.aliyun.com/apache/flink/flink-1.15.0/flink-1.15.0-bin-scala_2.12.tgz