未检测到 Yaml 更改，启动时遇到异常：Invalid yaml: file:/etc/cassandra/cassandra.yaml答案

【问题标题】：Yaml change not detected,Exception encountered during startup: Invalid yaml: file:/etc/cassandra/cassandra.yaml未检测到 Yaml 更改，启动时遇到异常：Invalid yaml: file:/etc/cassandra/cassandra.yaml
【发布时间】：2018-07-14 11:19:57
【问题描述】：

我更改了 Cassandra 配置文件

cat /etc/cassandra/cassandra.yaml | grep -n 'seed'
416:seed_provider:
423:          # seeds is actually a comma-delimited list of addresses.
425:          - seeds:"84.208.89.132,192.168.0.23,192.168.0.25,192.168.0.28"

还有集群名称

10:cluster_name: 'Petter Cluster'

我很惊讶 system.log 显示的内容

INFO  [main] 2018-01-27 17:20:51,343 YamlConfigurationLoader.java:89 - Configuration location: file:/etc/cassandra/cassandra.yaml
ERROR [main] 2018-01-27 17:20:51,427 CassandraDaemon.java:706 - Exception encountered during startup: Invalid yaml: file:/etc/cassandra/cassandra.yaml
 Error: while parsing a block mapping; expected <block end>, but found FlowEntry;  in 'reader', line 425, column 34:
              - seeds: "192.168.0.13","192.168.0.23","192.168.0.25"," ... 
                                     ^
INFO  [main] 2018-02-03 20:35:48,528 YamlConfigurationLoader.java:89 - Configuration location: file:/etc/cassandra/cassandra.yaml
ERROR [main] 2018-02-03 20:35:48,844 CassandraDaemon.java:706 - Exception encountered during startup: Invalid yaml: file:/etc/cassandra/cassandra.yaml
 Error: null; Can't construct a java object for tag:yaml.org,2002:org.apache.cassandra.config.Config; exception=Cannot create property=seed_provider for JavaBean=org.apache.cassandra.config.Config@551bdc27; java.lang.reflect.InvocationTargetException;  in 'reader', line 10, column 1:
    cluster_name: 'Test Cluster'
    ^
INFO  [main] 2018-02-03 20:39:08,311 YamlConfigurationLoader.java:89 - Configuration location: file:/etc/cassandra/cassandra.yaml
ERROR [main] 2018-02-03 20:39:08,647 CassandraDaemon.java:706 - Exception encountered during startup: Invalid yaml: file:/etc/cassandra/cassandra.yaml
 Error: null; Can't construct a java object for tag:yaml.org,2002:org.apache.cassandra.config.Config; exception=Cannot create property=seed_provider for JavaBean=org.apache.cassandra.config.Config@551bdc27; java.lang.reflect.InvocationTargetException;  in 'reader', line 10, column 1:
    cluster_name: 'Test Cluster'

如何解决这个问题？更改后如何初始化系统？

【问题讨论】：

你在.yaml文件更改后重启了cassandra吗？
有时您还需要重新启动所有节点。主要用于集群名称更改。
@dilsingi 是的，我重新启动了 cassandra。

标签： java cassandra yaml

【解决方案1】：

您似乎遇到了集群名称的问题，如果您愿意更改它，应该在所有节点上进行更改。

以下是更改集群名称的说明： 1.登录cqlsh 2. cqlsh> UPDATE system.local SET cluster_name = 'Petter Cluster' where key='local'; （您需要在要更改集群名称的每个节点上发出此命令。） system.local 仅在本地更改 3.cqlsh>退出； 4. $ nodetool 冲洗系统 5. 将 cassandra.yaml 集群名称编辑为 YOUR_CLUSTER_NAME。 6.重启cassandra。

也请检查此链接： https://surbhinosqldba.wordpress.com/2015/07/23/how-to-rename-modify-cassandra-cluster-name/

【讨论】：