|NO.Z.00001|——————————|^^ 报错 ^^|——|Hadoop&Hadoop核心框架.V01|——|Hadoop.v00|报错处理|

附录一：报错处理一：

### --- 报错现象：

[root@linux121 lib64]# hadoop checknative -a
21/08/12 22:00:29 INFO bzip2.Bzip2Factory: Successfully loaded & initialized native-bzip2 library system-native
21/08/12 22:00:29 INFO zlib.ZlibFactory: Successfully loaded & initialized native-zlib library
Native library checking:
hadoop:  true /opt/yanqi/servers/hadoop-2.9.2/lib/native/libhadoop.so.1.0.0
zlib:    true libz.so.1
snappy:  true libsnappy.so.1
zstd  :  false 
lz4:     true revision:10301
bzip2:   true libbz2.so.1
openssl: false Cannot load libcrypto.so (libcrypto.so: cannot open shared object file: No such file or directory)!
21/08/12 22:00:29 INFO util.ExitUtil: Exiting with status 1: ExitException

### --- 解决方案：

[root@linux121 lib64]# pwd
/usr/lib64
[root@linux121 lib64]# ln libcrypto.so.10 libcrypto.so

### --- 验证结果：

[root@linux121 lib64]# hadoop checknative -a
21/08/12 22:02:33 INFO bzip2.Bzip2Factory: Successfully loaded & initialized native-bzip2 library system-native
21/08/12 22:02:33 INFO zlib.ZlibFactory: Successfully loaded & initialized native-zlib library
Native library checking:
hadoop:  true /opt/yanqi/servers/hadoop-2.9.2/lib/native/libhadoop.so.1.0.0
zlib:    true libz.so.1
snappy:  true libsnappy.so.1
zstd  :  false 
lz4:     true revision:10301
bzip2:   true libbz2.so.1
openssl: true libcrypto.so
21/08/12 22:02:33 INFO util.ExitUtil: Exiting with status 1: ExitException

附录二：报错处理二：

### --- 报错现象：

Unable to load native-hadoop library for your platform

### --- 解决方案：

~~~     # 添加环境变量
vim /etc/profile
export HADOOP_COMMON_LIB_NATIVE_DIR=$HADOOP_HOME/lib/native
export HADOOP_OPTS="-Djava.library.path=$HADOOP_HOME/lib/native"
~~~     # 使环境变量生效
source /etc/profile

Walter Savage Landor:strove with none,for none was worth my strife.Nature I loved and, next to Nature, Art:I warm'd both hands before the fire of life.It sinks, and I am ready to depart

——W.S.Landor