2012-10-28 27 views
0

我有02个节点,一个在127.0.0.1上运行,另一个在127.0.0.2上运行
我添加到集群的数据是否会出现在两个节点上?由于电流,当我停止节点1,存在的第二个节点没有类似的数据,这也引发了一些例外,当我使用list命令:Cassandra中的同步02节点

Using default limit of 100          
Using default column limit of 100 
null 
UnavailableException() 
    at org.apache.cassandra.thrift.Cassandra$get_range_slices_result.read(Cassandra.java:12346) 
    at org.apache.thrift.TServiceClient.receiveBase(TServiceClient.java:78) 
    at org.apache.cassandra.thrift.Cassandra$Client.recv_get_range_slices(Cassandra.java:692) 
    at org.apache.cassandra.thrift.Cassandra$Client.get_range_slices(Cassandra.java:676) 
    at org.apache.cassandra.cli.CliClient.executeList(CliClient.java:1425) 
    at org.apache.cassandra.cli.CliClient.executeCLIStatement(CliClient.java:273) 
    at org.apache.cassandra.cli.CliMain.processStatementInteractive(CliMain.java:219) 
    at org.apache.cassandra.cli.CliMain.main(CliMain.java:346) 

一两件事是我用昆德拉连接到卡桑德拉分贝我的Java应用程序(内置在播放FW 2.0.4),我的持久性文件如下:

<?xml version="1.0" encoding="UTF-8"?> 
<persistence xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xsi:schemaLocation="http://java.sun.com/xml/ns/persistence 
    http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd" 
    version="2.0"> 
    <persistence-unit name="cassandra_pu"> 
     <provider>com.impetus.kundera.KunderaPersistence</provider>  
     <properties>    
      <property name="kundera.nodes" value="localhost"/> 
      <property name="kundera.port" value="9160"/> 
      <property name="kundera.keyspace" value="LSYCS"/> 
      <property name="kundera.dialect" value="cassandra"/> 
      <property name="kundera.client.lookup.class" value="com.impetus.client.cassandra.pelops.PelopsClientFactory" /> 
      <property name="kundera.cache.provider.class" value="com.impetus.kundera.cache.ehcache.EhCacheProvider"/> 
      <property name="kundera.cache.config.resource" value="/ehcache-test.xml"/>     
     </properties>  
    </persistence-unit> 
</persistence> 

我假设当节点1停机,应用程序将仍然能够连接到第二个节点,但它wasnot能够做到这一点。这里真的很不对劲吗?我期望的是,127.0.0.1处于脱机状态时,127.0.0.2能够处理这些作业,还是需要一个顶级应用程序来管理它们?


P/S:我在我的电脑上安装这样既127.0.0.1 127.0.0.2和点为localhost

回答