无法 运行 Cassandra on AWS Ubuntu 实例

Question

我有 openJDK 1.7 版本并安装了 Cassandra 2.1.8。 我也更改了 CASSANDRA_HOME 的 CLASSPATH，但出现以下错误。

> root@ip-172-31-57-69:/usr/local/apache-cassandra/bin# export CASSANDRA_HOME=/usr/local/apache-cassandra/
root@ip-172-31-57-69:/usr/local/apache-cassandra/bin#  echo $CASSANDRA_HOME;
/usr/local/apache-cassandra/
root@ip-172-31-57-69:/usr/local/apache-cassandra/bin# cd /usr/local/apache-cassandra/
root@ip-172-31-57-69:/usr/local/apache-cassandra# bin/cassandra
root@ip-172-31-57-69:/usr/local/apache-cassandra# 
CompilerOracle: inline org/apache/cassandra/db/AbstractNativeCell.compareTo (Lorg/apache/cassandra/db/composites/Composite;)I
CompilerOracle: inline org/apache/cassandra/db/composites/AbstractSimpleCellNameType.compareUnsigned (Lorg/apache/cassandra/db/composites/Composite;Lorg/apache/cassandra/db/composites/Composite;)I
CompilerOracle: inline org/apache/cassandra/io/util/Memory.checkBounds (JJ)V
CompilerOracle: inline org/apache/cassandra/io/util/SafeMemory.checkBounds (JJ)V
CompilerOracle: inline org/apache/cassandra/utils/ByteBufferUtil.compare (Ljava/nio/ByteBuffer;[B)I
CompilerOracle: inline org/apache/cassandra/utils/ByteBufferUtil.compare ([BLjava/nio/ByteBuffer;)I
CompilerOracle: inline org/apache/cassandra/utils/ByteBufferUtil.compareUnsigned (Ljava/nio/ByteBuffer;Ljava/nio/ByteBuffer;)I
CompilerOracle: inline org/apache/cassandra/utils/FastByteOperations$UnsafeOperations.compareTo (Ljava/lang/Object;JILjava/lang/Object;JI)I
CompilerOracle: inline org/apache/cassandra/utils/FastByteOperations$UnsafeOperations.compareTo (Ljava/lang/Object;JILjava/nio/ByteBuffer;)I
CompilerOracle: inline org/apache/cassandra/utils/FastByteOperations$UnsafeOperations.compareTo (Ljava/nio/ByteBuffer;Ljava/nio/ByteBuffer;)I
Error: Could not find or load main class org.apache.cassandra.service.CassandraDaemon

如有任何帮助，我们将不胜感激。这两天一直卡在这个里面

Answer 1

安装 Java JDK 然后尝试 运行 Cassandra。

Answer 2

1: 设置 java home 环境变量

2:设置python路径：C:\Python27 3：如果安装了其他 Python，请将其上移。