Hadoop启动警告：util.NativeCodeLoader: Unable to load native-hadoop library for your platform

table of Contents

First, the problem

Second, troubleshoot & resolve

1, online search-related issues

2, go take a look at $ HADOOP_HOME / lib / native there is nothing

3, restart hadoop, no warning

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First, the problem

Hadoop startup warning:

[hadoop@hadoop000 ~]$ start-all.sh 
This script is Deprecated. Instead use start-dfs.sh and start-yarn.sh
19/06/25 07:06:10 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
Starting namenodes on [hadoop000]

......

Second, troubleshoot & resolve

1, online search-related issues

2, go take a look at $ HADOOP_HOME / lib / native there is nothing

[hadoop@hadoop000 ~]$ cd $HADOOP_HOME
[hadoop@hadoop000 hadoop-2.6.0-cdh5.7.0]$ cd lib
[hadoop@hadoop000 lib]$ cd native/
[hadoop@hadoop000 native]$ ll
total 0

Nothing, then first download the corresponding native package, extract to $ HADOOP_HOME / lib and $ HADOOP_HOME / lib directory, then restart try.

Download: http://dl.bintray.com/sequenceiq/sequenceiq-bin/

[hadoop@hadoop000 native]$ ll
total 5236
-rw-r--r-- 1 hadoop hadoop 1119486 Jun 25 07:37 libhadoop.a
-rw-r--r-- 1 hadoop hadoop 1486964 Jun 25 07:37 libhadooppipes.a
-rwxr-xr-x 1 hadoop hadoop  671189 Jun 25 07:37 libhadoop.so
-rwxr-xr-x 1 hadoop hadoop  671189 Jun 25 07:37 libhadoop.so.1.0.0
-rw-r--r-- 1 hadoop hadoop  581944 Jun 25 07:37 libhadooputils.a
-rw-r--r-- 1 hadoop hadoop  359458 Jun 25 07:37 libhdfs.a
-rwxr-xr-x 1 hadoop hadoop  228435 Jun 25 07:37 libhdfs.so
-rwxr-xr-x 1 hadoop hadoop  228435 Jun 25 07:37 libhdfs.so.0.0.0

3, restart hadoop, no warning

[hadoop@hadoop000 ~]$ start-all.sh 
This script is Deprecated. Instead use start-dfs.sh and start-yarn.sh
Starting namenodes on [hadoop000]
hadoop000: starting namenode, logging to /home/hadoop/app/hadoop-2.6.0-cdh5.7.0/logs/hadoop-hadoop-namenode-hadoop000.out
hadoop000: starting datanode, logging to /home/hadoop/app/hadoop-2.6.0-cdh5.7.0/logs/hadoop-hadoop-datanode-hadoop000.out
Starting secondary namenodes [0.0.0.0]
0.0.0.0: starting secondarynamenode, logging to /home/hadoop/app/hadoop-2.6.0-cdh5.7.0/logs/hadoop-hadoop-secondarynamenode-hadoop000.out
starting yarn daemons
starting resourcemanager, logging to /home/hadoop/app/hadoop-2.6.0-cdh5.7.0/logs/yarn-hadoop-resourcemanager-hadoop000.out
hadoop000: starting nodemanager, logging to /home/hadoop/app/hadoop-2.6.0-cdh5.7.0/logs/yarn-hadoop-nodemanager-hadoop000.out
[hadoop@hadoop000 ~]$ 

Reference: https://blog.csdn.net/debugbugbg/article/details/79937551