1、没有成功安装impala-server impala-state-store  impala-catalog：

      修改错误的/etc/yum.repos.d

2、找不到JDO什么FactoryManager类：修改jar包路径

3 、MySQL-connector-Java-5.1.30-bin.jar 放进/var/lib/impala/中

4、修改hive-site.xml中MySQL连接信息

  hive.metastore.warehouse.dir
  /user/hive/warehouse
  location of default database for the warehouse

 
hive.metastore.local 
  false 
 
   
 
javax.jdo.option.ConnectionURL 
  jdbc:mysql://10.61.0.106:3306/hive?createDatabaseIfNotExist=true&useUnicode=true&characterEncoding=UTF-8 
 
   
 
javax.jdo.option.ConnectionDriverName 
  com.mysql.jdbc.Driver 
 
   
 
  javax.jdo.option.ConnectionUserName  
  hive  
 
     
 
  javax.jdo.option.ConnectionPassword  
  hive  

hive.metastore.uris
thrift://127.0.0.1:9083

4、这两个服务要先启动：

    hive --service metastore &
     hive --service hiveserver &

然后再启动hive

5、问题：

在impala-shell中运行show databases后报错：

Running on machine: node1
Log line format: [IWEF]mmdd hh:mm:ss.uuuuuu threadid file:line] msg
E0417 11:05:24.897881  6858 catalog.cc:77] java.lang.IllegalStateException: MetaException(message:Could not connect to meta store using any of the URIs provided. Most recent failure: org.apache.thrift.transport.TTransportException: java.net.ConnectException: Connection refused
        at org.apache.thrift.transport.TSocket.open(TSocket.
        at org.apache.Hadoop.hive.metastore.HiveMetaStoreClient.open(HiveMetaStoreClient.
        at org.apache.hadoop.hive.metastore.HiveMetaStoreClient.(HiveMetaStoreClient.
        at org.apache.hadoop.hive.metastore.HiveMetaStoreClient.(HiveMetaStoreClient.
        at com.cloudera.impala.catalog.MetaStoreClientPool$MetaStoreClient.(MetaStoreClientPool.
        at com.cloudera.impala.catalog.MetaStoreClientPool$MetaStoreClient.(MetaStoreClientPool.
        at com.cloudera.impala.catalog.MetaStoreClientPool.addClients(MetaStoreClientPool.
        at com.cloudera.impala.catalog.Catalog.(Catalog.
        at com.cloudera.impala.catalog.CatalogServiceCatalog.(CatalogServiceCatalog.
        at com.cloudera.impala.service.JniCatalog.(JniCatalog.
Caused by: java.net.ConnectException: Connection refused
        at java.net.PlainSocketImpl.socketConnect(Native Method)
        at
        at
        at
        at
        at
        at org.apache.thrift.transport.TSocket.open(TSocket.
        ... 9 more

解决方法：

在各个节点上运行：

    hive --service metastore &
     hive --service hiveserver &

再运行

service impala-server restart
service impala-state-store restart
service impala-catalog restart

即可