Shulou(Shulou.com)06/01 Report--

Configure hbase in eclipse on win, then write a simple operation to create a table, and use the build.xml of ant to report an error:

[sshexec] Connecting to 192.168.60.111:22

[sshexec] cmd: / opt/hadoop/bin/hadoop jar/ home/hadoop_jar/HbaseApp1.jar hbasetest.HbaseApp1

[sshexec] Exception in thread "main"

[sshexec] java.lang.NoClassDefFoundError: org/apache/hadoop/hbase/HBaseConfiguration

[sshexec]

[sshexec] at hbasetest.HbaseApp1.main (Unknown Source)

[sshexec]

[sshexec] at sun.reflect.NativeMethodAccessorImpl.invoke0 (NativeMethod)

[sshexec]

[sshexec] at sun.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:57)

However, when you do not use build, you will not report an error when you right-click the runtime:

Log4j:WARN No appenders could be found for logger (org.apache.hadoop.metrics2.lib.MutableMetricsFactory).

Log4j:WARN Please initialize the log4j system properly.

Log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.

Table exists

Solution:

Add the following code to the hadoop-env.sh file

Export HADOOP_CLASSPATH=/usr/local/hbase-0.98.8-hadoop2/lib/*

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.