ubuntu - JPS 给出空输出，没有一个 Hadoop 守护进程以 start-all.sh 开头，Hadoop Psudo 分布式模式，在 64 位 Windows 操作系统上运行的 32 位虚拟机上

Question

我正在尝试在运行于 64 位操作系统之上的 32 位虚拟机上设置 Hadoop2.7.1、Java OpenJDK 7。我已经配置了这里提到的所有文件 http://pingax.com/install-hadoop2-6-0-on-ubuntu/

即使在我运行 start-dfs.sh 或 start-all.sh 之后，也没有任何守护进程启动。

这是 start,jps 命令的输出

hduser@ubuntu:~$ start-dfs.sh
16/04/22 00:33:14 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
Starting namenodes on [localhost]
localhost: starting namenode, logging to /usr/local/hadoop/logs/hadoop-hduser-namenode-ubuntu.out
localhost: starting datanode, logging to /usr/local/hadoop/logs/hadoop-hduser-datanode-ubuntu.out
Starting secondary namenodes [0.0.0.0]
0.0.0.0: starting secondarynamenode, logging to /usr/local/hadoop/logs/hadoop-hduser-secondarynamenode-ubuntu.out
16/04/22 00:33:33 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
hduser@ubuntu:~$  jps
12147 Jps
hduser@ubuntu:~$ 

我似乎无法理解原因。就警告而言，正如其他一些答案中指出的那样，可以忽略或禁止警告。

我进一步看到提到的调试文件的内容是这样的

hduser@ubuntu:~$ cat /usr/local/hadoop/logs/hadoop-hduser-namenode-ubuntu.out
OpenJDK Client VM warning: You have loaded library /usr/local/hadoop/lib/native/libhadoop.so.1.0.0 which might have disabled stack guard. The VM will try to fix the stack guard now.
It's highly recommended that you fix the library with 'execstack -c <libfile>', or link it with '-z noexecstack'.
         (kbytes, -m) unlimited
open files                      (-n) 1024
pipe size            (512 bytes, -p) 8
POSIX message queues     (bytes, -q) 819200
real-time priority              (-r) 0
stack size              (kbytes, -s) 8192
cpu time               (seconds, -t) unlimited
max user processes              (-u) 14869
virtual memory          (kbytes, -v) unlimited
file locks                      (-x) unlimited
hduser@ubuntu:~$ 

数据节点的日志文件中甚至给出了相同的错误。任何帮助将不胜感激...

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编辑:

https://chawlasumit.wordpress.com/2014/06/17/hadoop-java-hotspottm-execstack-warning/

按照建议我进行了更改，但这只是抑制了日志中的错误，

hduser@ubuntu:~$ cat /usr/local/hadoop/logs/hadoop-hduser-namenode-ubuntu.out
ulimit -a for user hduser
core file size          (blocks, -c) 0
data seg size           (kbytes, -d) unlimited
scheduling priority             (-e) 0
file size               (blocks, -f) unlimited
pending signals                 (-i) 14869
max locked memory       (kbytes, -l) 64
max memory size         (kbytes, -m) unlimited
open files                      (-n) 1024
pipe size            (512 bytes, -p) 8
POSIX message queues     (bytes, -q) 819200
real-time priority              (-r) 0
stack size              (kbytes, -s) 8192
cpu time               (seconds, -t) unlimited
max user processes              (-u) 14869
virtual memory          (kbytes, -v) unlimited
file locks                      (-x) unlimited

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Answer 1

检查您的配置文件。确保您的 .xml 文件(尤其是您的 core-site.xml)的内容与 here 相同.很少有网站有过时的教程，他们在 core-site.xml 文件中提到“fs.default.name”而不是“fs.defaultFS”。