Odtnhj

This is my second attempt at setting up a 3-node Cassandra cluster on my machine. I'm not able to start the first instance.
During startup I get

Exception encountered during startup
org.apache.cassandra.exceptions.ConfigurationException: Invalid yaml: file:/home/user1/TestCluster/node1/dsc-cassandra-2.2.8/conf/cassandra.yaml

and alot of lines that I'm not able to make any sense of (I fail to see why the yaml is invalid).

My approach consisted of the following steps:

1. I unzipped a tarball installation into 3 folders (as i want 3 instances).



2. 
   

   In each cassandra.yaml:

   
   
   
   • 
     cluster_name was set
   
   
   • 
     seeds: "127.0.0.2" (same for all nodes)
   
   
   • 
     rpc_address, listen_address were set to 127.0.0.2-4 for all nodes
   
   
   • 
     rpc_port was set (9160, 9161, 9162)
   
   
   • 
     data_file_directories, commitlog_directories, saved_caches_directory were set for all
   
   



3. In each cassandra-env.sh the JMX_PORT was set (8081,8082,8083)

etc/hosts was edited so that 127.2-4 are aliases for 127.0.0.1

My questions are: What am I doing wrong? How can this be fixed? Is there any other simple way to do this on ubuntu?

I'm including the error incase it makes any sense. Will remove if it takes up too much space.

ERROR 12:19:12 Exception encountered during startup
org.apache.cassandra.exceptions.ConfigurationException: Invalid yaml: file:/home/user1/TestCluster/node1/dsc-cassandra-2.2.8/conf/cassandra.yaml
 at org.apache.cassandra.config.YamlConfigurationLoader.loadConfig(YamlConfigurationLoader.java:118) ~[apache-cassandra-2.2.8.jar:2.2.8]
 at org.apache.cassandra.config.YamlConfigurationLoader.loadConfig(YamlConfigurationLoader.java:85) ~[apache-cassandra-2.2.8.jar:2.2.8]
 at org.apache.cassandra.config.DatabaseDescriptor.loadConfig(DatabaseDescriptor.java:135) ~[apache-cassandra-2.2.8.jar:2.2.8]
 at org.apache.cassandra.config.DatabaseDescriptor.<clinit>(DatabaseDescriptor.java:119) ~[apache-cassandra-2.2.8.jar:2.2.8]
 at org.apache.cassandra.service.CassandraDaemon.activate(CassandraDaemon.java:507) [apache-cassandra-2.2.8.jar:2.2.8]
 at org.apache.cassandra.service.CassandraDaemon.main(CassandraDaemon.java:641) [apache-cassandra-2.2.8.jar:2.2.8]
Caused by: org.yaml.snakeyaml.constructor.ConstructorException: null; Can't construct a java object for tag:yaml.org,2002:org.apache.cassandra.config.Config; exception=Cannot create property=data_file_directories for JavaBean=org.apache.cassandra.config.Config@24a35978; No single argument constructor found for class [Ljava.lang.String;; in 'reader', line 10, column 1:
 cluster_name: 'Testcluster'
 ^
 at org.yaml.snakeyaml.constructor.Constructor$ConstructYamlObject.construct(Constructor.java:333) ~[snakeyaml-1.11.jar:na]
 at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:182) ~[snakeyaml-1.11.jar:na]
 at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:141) ~[snakeyaml-1.11.jar:na]
 at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:127) ~[snakeyaml-1.11.jar:na]
 at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:481) ~[snakeyaml-1.11.jar:na]
 at org.yaml.snakeyaml.Yaml.loadAs(Yaml.java:475) ~[snakeyaml-1.11.jar:na]
 at org.apache.cassandra.config.YamlConfigurationLoader.loadConfig(YamlConfigurationLoader.java:111) ~[apache-cassandra-2.2.8.jar:2.2.8]
 ... 5 common frames omitted
Caused by: org.yaml.snakeyaml.error.YAMLException: Cannot create property=data_file_directories for JavaBean=org.apache.cassandra.config.Config@24a35978; No single argument constructor found for class [Ljava.lang.String;
 at org.yaml.snakeyaml.constructor.Constructor$ConstructMapping.constructJavaBean2ndStep(Constructor.java:299) ~[snakeyaml-1.11.jar:na]
 at org.yaml.snakeyaml.constructor.Constructor$ConstructMapping.construct(Constructor.java:189) ~[snakeyaml-1.11.jar:na]
 at org.yaml.snakeyaml.constructor.Constructor$ConstructYamlObject.construct(Constructor.java:331) ~[snakeyaml-1.11.jar:na]
 ... 11 common frames omitted
Caused by: org.yaml.snakeyaml.error.YAMLException: No single argument constructor found for class [Ljava.lang.String;
 at org.yaml.snakeyaml.constructor.Constructor$ConstructScalar.construct(Constructor.java:379) ~[snakeyaml-1.11.jar:na]
 at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:182) ~[snakeyaml-1.11.jar:na]
 at org.yaml.snakeyaml.constructor.Constructor$ConstructMapping.constructJavaBean2ndStep(Constructor.java:296) ~[snakeyaml-1.11.jar:na]
 ... 13 common frames omitted

I would just use CCM if this is strictly for testing purposes on local machine.

https://github.com/pcmanus/ccm

It looks like your cofiguration is correct, I Have done exactly what you describe and it works fine.
Problem seems to be that you have some sort of error in cassandra.yaml file. Please check line:

data_file_directories:
 - /var/lib/cassandra/data

It works when it is like this (two lines), when you put it in one line it throws error from your post.