Cassandra死了但是pid文件存在

Question

我对cassandra有新手,并尝试在centos 7.0上安装cassandra-2.1.2.完成安装后,执行cqlsh命令并创建几个密钥空间和列族.在我看来,它看起来很完美.

但后来我意识到以下问题:

1-当我执行"service cassandra status"命令时,我得到以下错误:

输出:Cassandra死了,但是pid文件存在.

我搜索了上述问题并找到了一些链接

http://www.datastax.com/support-forums/topic/dse-dead-but-pid-file-exists

https://baioradba.wordpress.com/2014/06/13/how-to-install-cassandra-on-centos-6-5/

并发现我在上面的链接中提到了相同的配置,但同样的错误仍然存​​在.

请告诉我根本原因以及解决方法.

2-第二个问题在cassandra.log文件中.

当我分析cassandra.log文件时,有一个预期:

Expecting URI in variable: [cassandra.config]. Please prefix the file with file:/// for local files or file://<server>/ for remote files. Aborting.

以下是完整的日志:

12:01:40.816 [main] ERROR o.a.c.config.DatabaseDescriptor - Fatal configuration error
org.apache.cassandra.exceptions.ConfigurationException: Expecting URI in variable: [cassandra.config].  Please prefix the file with file:/// for local files or file://<server>/ for remote files.  Aborting.
    at org.apache.cassandra.config.YamlConfigurationLoader.getStorageConfigURL(YamlConfigurationLoader.java:73) ~[apache-cassandra-2.1.3.jar:2.1.3]
    at org.apache.cassandra.config.YamlConfigurationLoader.loadConfig(YamlConfigurationLoader.java:84) ~[apache-cassandra-2.1.3.jar:2.1.3]
    at org.apache.cassandra.config.DatabaseDescriptor.loadConfig(DatabaseDescriptor.java:158) ~[apache-cassandra-2.1.3.jar:2.1.3]
    at org.apache.cassandra.config.DatabaseDescriptor.<clinit>(DatabaseDescriptor.java:133) ~[apache-cassandra-2.1.3.jar:2.1.3]
    at org.apache.cassandra.service.CassandraDaemon.setup(CassandraDaemon.java:110) [apache-cassandra-2.1.3.jar:2.1.3]
    at org.apache.cassandra.service.CassandraDaemon.activate(CassandraDaemon.java:465) [apache-cassandra-2.1.3.jar:2.1.3]
    at org.apache.cassandra.service.CassandraDaemon.main(CassandraDaemon.java:554) [apache-cassandra-2.1.3.jar:2.1.3]
Expecting URI in variable: [cassandra.config].  Please prefix the file with file:/// for local files or file://<server>/ for remote files.  Aborting.

致命配置错误; 无法开始.请参阅logtra for stacktrace.

我再次在谷歌搜索相同的问题,但链接不是很有用,因为它们包含cassandra.config的java类代码.

请再说一下根本原因以及如何解决它？

提前致谢.

Answer 1

删除pid文件。尝试

rm /var/run/cassandra.pid