运行 ./sbin/start-master.sh :
- command:/usr/lib/jvm/java-8-openjdk-amd64/jre/bin/java -cp /home/server/spark/conf/:/home/server/spark/jars/*:/home/server/hadoop/etc/hadoop/:/home/server/hadoop/share/hadoop/common/lib/:/home/server/hadoop/share/hadoop/common/:/home/server/hadoop/share/hadoop/mapreduce/:/home/server/hadoop/share/hadoop/mapreduce/lib/:/home/server/hadoop/share/hadoop/yarn/:/home/server/hadoop/share/hadoop/yarn/lib/ -xmx1g org.apache.spark.deploy.master.master --host thinkpad-w550s-lab --port 7077 --webui-port 8080
========================================
error: a jni error has occurred, please check your installation and try again
exception in thread "main" java.lang.noclassdeffounderror: org/slf4j/logger
at java.lang.class.getdeclaredmethods0(native method)
at java.lang.class.privategetdeclaredmethods(class.java:2701)
at java.lang.class.privategetmethodrecursive(class.java:3048)
at java.lang.class.getmethod0(class.java:3018)
at java.lang.class.getmethod(class.java:1784)
at sun.launcher.launcherhelper.validatemainclass(launcherhelper.java:544)
at sun.launcher.launcherhelper.checkandloadmain(launcherhelper.java:526)
caused by: java.lang.classnotfoundexception: org.slf4j.logger
at java.net.urlclassloader.findclass(urlclassloader.java:381)
at java.lang.classloader.loadclass(classloader.java:424)
at sun.misc.launcher$appclassloader.loadclass(launcher.java:331)
at java.lang.classloader.loadclass(classloader.java:357)
... 7 more
参考spark尊龙凯时网址官网：http://spark.apache.org/docs/latest/hadoop-provided.html
spark uses hadoop client libraries for hdfs and yarn. starting in version spark 1.4, the project packages “hadoop free” builds that lets you more easily connect a single spark binary to any hadoop version. to use these builds, you need to modify spark_dist_classpath to include hadoop’s package jars. the most convenient place to do this is by adding an entry in conf/spark-env.sh.
this page describes how to connect spark to hadoop for different types of distributions.
for apache distributions, you can use hadoop’s ‘classpath’ command. for instance:
- ### in conf/spark-env.sh ###
# if 'hadoop' binary is on your path
export spark_dist_classpath=$(hadoop classpath)
# with explicit path to 'hadoop' binary
export spark_dist_classpath=$(/path/to/hadoop/bin/hadoop classpath)
# passing a hadoop configuration directory
export spark_dist_classpath=$(hadoop --config /path/to/configs classpath)
最终在spark-env.sh文件添加如下配置：
- export spark_dist_classpath=$(/usr/local/hadoop/hadoop-2.7.3/bin/hadoop classpath)
启动运行，成功！