java链接Hbase连不上，控制台日志

Question

老师，我在windows环境上用java代码访问阿里云上部署的hbase，启动程序后控制台一直不断输出如下log，百度过也没有类似的答案，请问是什么原因呢？

17:05:19.782 [main-SendThread(39.107.85.174:2181)] DEBUG org.apache.zookeeper.ClientCnxn - Got ping response for sessionid: 0x161e5234ea2004c after 42ms

17:05:19.806 [main-SendThread(39.107.85.174:2181)] DEBUG org.apache.zookeeper.ClientCnxn - Reading reply sessionid:0x161e5234ea2004c, packet:: clientPath:null serverPath:null finished:false header:: 36,4  replyHeader:: 36,601,0  request:: '/hbase/meta-region-server,F  response:: #ffffffff0001a726567696f6e7365727665723a363030323067fffffffaffffffbbffffff8e6cffffffd3ffffff866550425546a13a66861646f6f7010fffffff4ffffffd4318ffffffe5ffffff99ffffffc1ffffffadffffff9e2c100183,s{194,194,1519976995928,1519976995928,0,0,0,0,60,0,194} 

17:05:22.065 [main] DEBUG org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation - locateRegionInMeta parentTable=hbase:meta, metaLocation=[region=hbase:meta,,1.1588230740, hostname=hadoop,60020,1519976991973, seqNum=0], attempt=8 of 31 failed; retrying after sleep of 10041 because: unknown host: hadoop

17:05:22.089 [main-SendThread(39.107.85.174:2181)] DEBUG org.apache.zookeeper.ClientCnxn - Reading reply sessionid:0x161e5234ea2004c, packet:: clientPath:null serverPath:null finished:false header:: 37,8  replyHeader:: 37,601,0  request:: '/hbase,F  response:: v{'replication,'meta-region-server,'rs,'splitWAL,'backup-masters,'table-lock,'flush-table-proc,'region-in-transition,'online-snapshot,'master,'running,'recovering-regions,'draining,'namespace,'hbaseid,'table} 

17:05:22.115 [main-SendThread(39.107.85.174:2181)] DEBUG org.apache.zookeeper.ClientCnxn - Reading reply sessionid:0x161e5234ea2004c, packet:: clientPath:null serverPath:null finished:false header:: 38,4  replyHeader:: 38,601,0  request:: '/hbase/meta-region-server,F  response:: #ffffffff0001a726567696f6e7365727665723a363030323067fffffffaffffffbbffffff8e6cffffffd3ffffff866550425546a13a66861646f6f7010fffffff4ffffffd4318ffffffe5ffffff99ffffffc1ffffffadffffff9e2c100183,s{194,194,1519976995928,1519976995928,0,0,0,0,60,0,194} 

17:05:32.163 [main-SendThread(39.107.85.174:2181)] DEBUG org.apache.zookeeper.ClientCnxn - Reading reply sessionid:0x161e5234ea2004c, packet:: clientPath:null serverPath:null finished:false header:: 39,8  replyHeader:: 39,601,0  request:: '/hbase,F  response:: v{'replication,'meta-region-server,'rs,'splitWAL,'backup-masters,'table-lock,'flush-table-proc,'region-in-transition,'online-snapshot,'master,'running,'recovering-regions,'draining,'namespace,'hbaseid,'table} 

17:05:32.163 [main-SendThread(39.107.85.174:2181)] DEBUG org.apache.zookeeper.ClientCnxn - Got ping response for sessionid: 0x161e5234ea2004c after 25ms

17:05:32.187 [main-SendThread(39.107.85.174:2181)] DEBUG org.apache.zookeeper.ClientCnxn - Reading reply sessionid:0x161e5234ea2004c, packet:: clientPath:null serverPath:null finished:false header:: 40,4  replyHeader:: 40,601,0  request:: '/hbase/meta-region-server,F  response:: #ffffffff0001a726567696f6e7365727665723a363030323067fffffffaffffffbbffffff8e6cffffffd3ffffff866550425546a13a66861646f6f7010fffffff4ffffffd4318ffffffe5ffffff99ffffffc1ffffffadffffff9e2c100183,s{194,194,1519976995928,1519976995928,0,0,0,0,60,0,194} 

17:05:34.445 [main] DEBUG org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation - locateRegionInMeta parentTable=hbase:meta, metaLocation=[region=hbase:meta,,1.1588230740, hostname=hadoop,60020,1519976991973, seqNum=0], attempt=9 of 31 failed; retrying after sleep of 10070 because: unknown host: hadoop

17:05:34.475 [main-SendThread(39.107.85.174:2181)] DEBUG org.apache.zookeeper.ClientCnxn - Reading reply sessionid:0x161e5234ea2004c, packet:: clientPath:null serverPath:null finished:false header:: 41,8  replyHeader:: 41,601,0  request:: '/hbase,F  response:: v{'replication,'meta-region-server,'rs,'splitWAL,'backup-masters,'table-lock,'flush-table-proc,'region-in-transition,'online-snapshot,'master,'running,'recovering-regions,'draining,'namespace,'hbaseid,'table} 

17:05:34.503 [main-SendThread(39.107.85.174:2181)] DEBUG org.apache.zookeeper.ClientCnxn - Reading reply sessionid:0x161e5234ea2004c, packet:: clientPath:null serverPath:null finished:false header:: 42,4  replyHeader:: 42,601,0  request:: '/hbase/meta-region-server,F  response:: #ffffffff0001a726567696f6e7365727665723a363030323067fffffffaffffffbbffffff8e6cffffffd3ffffff866550425546a13a66861646f6f7010fffffff4ffffffd4318ffffffe5ffffff99ffffffc1ffffffadffffff9e2c100183,s{194,194,1519976995928,1519976995928,0,0,0,0,60,0,194} 

17:05:44.607 [main-SendThread(39.107.85.174:2181)] DEBUG org.apache.zookeeper.ClientCnxn - Reading reply sessionid:0x161e5234ea2004c, packet:: clientPath:null serverPath:null finished:false header:: 43,8  replyHeader:: 43,601,0  request:: '/hbase,F  response:: v{'replication,'meta-region-server,'rs,'splitWAL,'backup-masters,'table-lock,'flush-table-proc,'region-in-transition,'online-snapshot,'master,'running,'recovering-regions,'draining,'namespace,'hbaseid,'table} 

17:05:44.608 [main-SendThread(39.107.85.174:2181)] DEBUG org.apache.zookeeper.ClientCnxn - Got ping response for sessionid: 0x161e5234ea2004c after 28ms

Answer 1

Michael_PK 2018-03-05 17:25:03

这都是debug ，没关系啊，你可以调整log4j 的日志级别

• 提问者 qq_大鳄鱼_0 #1

  我做的操作是获取hbase表中的内容，这个日志一直都在滚动，程序停不下来，好像是多次尝试链接服务器连不上。。我注意到有这么一段日志：
  17:27:24.325 [main] DEBUG org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation - locateRegionInMeta parentTable=hbase:meta, metaLocation=[region=hbase:meta,,1.1588230740, hostname=hadoop,60020,1519976991973, seqNum=0], attempt=7 of 31 failed; retrying after sleep of 10096 because: unknown host: hadoop
  最后一个写着unknown host: hadoop，我生产环境上的host是叫hadoop的，难道是环境上有什么地方配置失败导致找不到host吗？

• 提问者 qq_大鳄鱼_0 #2

  我的hbase-site.xml配置是这样的
  <configuration>
   <property>
    <name>hbase.rootdir</name>
    <value>hdfs://hadoop:8020/hbase</value>
   </property>
   <property>
    <name>hbase.cluster.distributed</name>
    <value>true</value>
   </property>
   <property>
    <name>hbase.zookeeper.quorum</name>
    <value>hadoop:2181</value>
   </property>
  </configuration>

• Michael_PK 回复 提问者 qq_大鳄鱼_0 #3

  你本地host配置映射了吗

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