Will not attempt to authenticate using SASL (无法定位登录配置)

Question

java.net.ConnectException: Connection timed out: no further information
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:599)
at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
2017-06-09 13:25:37,345 INFO [org.apache.zookeeper.ClientCnxn] - Opening socket connection to server 192.168.1.166/192.168.1.166:2181. Will not attempt to authenticate using SASL (无法定位登录配置)

Answer 1

java API草错hbase举例如下：
例如输出表“users”的列族名称
import java.io.IOException;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.HBaseConfiguration;
import org.apache.hadoop.hbase.HColumnDescriptor;
import org.apache.hadoop.hbase.HTableDescriptor;
import org.apache.hadoop.hbase.client.HBaseAdmin;
import org.apache.hadoop.hbase.util.Bytes;

public class ExampleClient {
public static void main(String[] args) throws IOException {

Configuration conf = HBaseConfiguration.create();
conf.set("hbase.zookeeper.quorum", "master");//使用eclipse时必须添加这个，否则无法定位
conf.set("hbase.zookeeper.property.clientPort", "2181");
HBaseAdmin admin = new HBaseAdmin(conf);// 新建一个数据库管理员
HTableDescriptor tableDescriptor = admin.getTableDescriptor(Bytes.toBytes("users"));
byte[] name = tableDescriptor.getName();
System.out.println("result:");

System.out.println("table name: "+ new String(name));
HColumnDescriptor[] columnFamilies = tableDescriptor
.getColumnFamilies();
for(HColumnDescriptor d : columnFamilies){
System.out.println("column Families: "+ d.getNameAsString());
}
}
}
输出结果：
2013-09-09 15:58:51,890 WARN conf.Configuration (Configuration.java:(195)) - DEPRECATED: hadoop-site.xml found in the classpath. Usage of hadoop-site.xml is deprecated. Instead use core-site.xml, mapred-site.xml and hdfs-site.xml to override properties of core-default.xml, mapred-default.xml and hdfs-default.xml respectively
2013-09-09 15:58:55,031 INFO zookeeper.ZooKeeper (Environment.java:logEnv(100)) - Client environment:zookeeper.version=3.4.5-1392090, built on 09/30/2012 17:52 GMT
2013-09-09 15:58:55,031 INFO zookeeper.ZooKeeper (Environment.java:logEnv(100)) - Client environment:host.name=w253245.ppp.asahi-net.or.jp
2013-09-09 15:58:55,031 INFO zookeeper.ZooKeeper (Environment.java:logEnv(100)) - Client environment:java.version=1.6.0_10-rc2
2013-09-09 15:58:55,031 INFO zookeeper.ZooKeeper (Environment.java:logEnv(100)) - Client environment:java.vendor=Sun Microsystems Inc.
2013-09-09 15:58:55,031 INFO zookeeper.ZooKeeper (Environment.java:logEnv(100)) - Client environment:java.home=C:\Java\jre6
2013-09-09 15:58:55,031 INFO zookeeper.ZooKeeper (Environment.java:logEnv(100)) - Client environment:java.class.path
2013-09-09 15:58:55,031 INFO zookeeper.ZooKeeper (Environment.java:logEnv(100)) - Client environment:java.library.path=D:\workspace\Eclipse-jee\hadoop-1.1.21\lib\native;D:\workspace\Eclipse-jee\hadoop-1.1.21\lib\native
2013-09-09 15:58:55,031 INFO zookeeper.ZooKeeper (Environment.java:logEnv(100)) - Client environment:java.io.tmpdir=C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp\
2013-09-09 15:58:55,031 INFO zookeeper.ZooKeeper (Environment.java:logEnv(100)) - Client environment:java.compiler=
2013-09-09 15:58:55,031 INFO zookeeper.ZooKeeper (Environment.java:logEnv(100)) - Client environment:os.name=Windows XP
2013-09-09 15:58:55,031 INFO zookeeper.ZooKeeper (Environment.java:logEnv(100)) - Client environment:os.arch=x86
2013-09-09 15:58:55,031 INFO zookeeper.ZooKeeper (Environment.java:logEnv(100)) - Client environment:os.version=5.1
2013-09-09 15:58:55,031 INFO zookeeper.ZooKeeper (Environment.java:logEnv(100)) - Client environment:user.name=hadoop
2013-09-09 15:58:55,031 INFO zookeeper.ZooKeeper (Environment.java:logEnv(100)) - Client environment:user.home=C:\Documents and Settings\Administrator
2013-09-09 15:58:55,031 INFO zookeeper.ZooKeeper (Environment.java:logEnv(100)) - Client environment:user.dir=D:\workspace\Eclipse-jee\Hadoop_APPs_U_tht
2013-09-09 15:58:55,031 INFO zookeeper.ZooKeeper (ZooKeeper.java:(438)) - Initiating client connection, connectString=master:2181 sessionTimeout=180000 watcher=hconnection
2013-09-09 15:58:56,171 INFO zookeeper.RecoverableZooKeeper (RecoverableZooKeeper.java:(104)) - The identifier of this process is 6032@tht
2013-09-09 15:58:56,234 INFO zookeeper.ClientCnxn (ClientCnxn.java:logStartConnect(966)) - Opening socket connection to server master/121.1.253.251:2181. Will not attempt to authenticate using SASL (无法定位登录配置)
2013-09-09 15:58:56,296 INFO zookeeper.ClientCnxn (ClientCnxn.java:primeConnection(849)) - Socket connection established to master/121.1.253.251:2181, initiating session
2013-09-09 15:58:56,484 INFO zookeeper.ClientCnxn (ClientCnxn.java:onConnected(1207)) - Session establishment complete on server master/121.1.253.251:2181, sessionid = 0x141011ad7db000e, negotiated timeout = 180000
result:
table name: users
column Families: address
column Families: info
column Families: user_id

追问

不好意思，今天刚刚看到；为什么会要使用到Hadoop大数据啊