hadoop3.1.2/gdal3.0.0源码编译

 编译gdal3.0.0源码使支持gdal读写hdfs, 首先编译hadoop3.1.2源码,然后编译gdal3.0.0源码,生成所需gdal.jar包和动态库.hadoop编译结果下载链接；gdal动态库下载链接。

参考：[GDAL编译安装指南](https://www.jianshu.com/p/bb20c2c2043d)

1. hadoop3.1.2源码编译

主要介绍依赖库安装,遇到的问题与解决办法：

安装Protocol Buffer,参考

[手把手教你如何安装Protocol Buffer ](https://www.jianshu.com/p/92dbe1ef0054)

hadoop编译报如下问题

Cannot find a usable OpenSSL library. OPENSSL_LIBRARY hadoop

解决办法:安装openssl,参考

[hadoop源码研究 编译错误记录](https://blog.csdn.net/plifemao/article/details/86711771)

2.gdal3.0.0源码编译

./configure --with-java=/usr/lib/jdk1.8.0_92 --with-hdfs=/usr/local/

gdal make报如下问题

/usr/bin/ld: warning: libjvm.so

解决办法:配置LD_LIBRARY_PATH,参考

[C语言操作hdfs](https://www.jianshu.com/p/9a237f8c2314)

3. openssl sqlite3环境变量配置

OPENSSL\PKG_CONFIG_PATH环境变量配置如下,~/.bash_profile

vim ~/.bash_profile

```

export OPENSSL=/usr/local/openssl/bin

export SQLITE3=/usr/local/sqlite3/bin

export PATH=$SQLITE3:$OPENSSL:$PATH

export PKG_CONFIG_PATH=/usr/local/sqlite3/lib/pkgconfig

PATH=$PATH:$HOME/bin

export PATH

```

export JAVA_HOME=/usr/lib/jdk1.8.0_92

export MAVEN_HOME=/usr/local/apache-maven-3.5.4

export ANT_HOME=/usr/local/apache-ant-1.10.6

export FINDBUGS_HOME=/usr/local/findbugs-3.0.1

export NODE_HOME=/usr/local/node-v8.11.4-linux-x64

export PATH=$PATH:$JAVA_HOME/bin:$MAVEN_HOME/bin:$ANT_HOME/bin:$FINDBUGS_HOME/bin:$NODE_HOME/bin

export LD_LIBRARY_PATH=$JAVA_HOME/jre/lib/amd64/server