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From "Brady, John" <john.br...@intel.com>
Subject RE: JDBC connection zookeeper error
Date Mon, 23 Feb 2015 16:58:07 GMT
Hi Matthew,

Yes, I just doubled checked. The HBase master is running and I can access the HMaster status
page – I can see the tables I created in Phoenix.

Would you have any other ideas?

Thanks



From: Matthew Johnson [mailto:matt.johnson@algomi.com]
Sent: Monday, February 23, 2015 3:13 PM
To: user@phoenix.apache.org
Subject: RE: JDBC connection zookeeper error

Hi John,

Is your HBase Master running? (It shows up in linux process list as HMaster). Are you able
to access the HMaster status page? (On mine, it is http://<ip<http://%3cip> address>:60010).

Cheers,
Matt


From: Brady, John [mailto:john.brady@intel.com<mailto:john.brady@intel.com>]
Sent: 23 February 2015 14:59
To: user@phoenix.apache.org<mailto:user@phoenix.apache.org>
Subject: JDBC connection zookeeper error

Hello,

I have Phoenix installed on a 5 node Cloudera cluster with 3 zookeeper nodes.

I’m trying to run a basic SQL command from the JDBC program below but I’m getting zookeeper
errors. Could anybody advise?

org.apache.phoenix.exception.PhoenixIOException: org.apache.hadoop.hbase.MasterNotRunningException:
Can't get connection to ZooKeeper: KeeperErrorCode = ConnectionLoss for /hbase
     at org.apache.phoenix.util.ServerUtil.parseServerException(ServerUtil.java:108)
     at org.apache.phoenix.query.ConnectionQueryServicesImpl.ensureTableCreated(ConnectionQueryServicesImpl.java:832)
     at org.apache.phoenix.query.ConnectionQueryServicesImpl.createTable(ConnectionQueryServicesImpl.java:1126)
     at org.apache.phoenix.query.DelegateConnectionQueryServices.createTable(DelegateConnectionQueryServices.java:110)
     at org.apache.phoenix.schema.MetaDataClient.createTableInternal(MetaDataClient.java:1590)
     at org.apache.phoenix.schema.MetaDataClient.createTable(MetaDataClient.java:568)
     at org.apache.phoenix.compile.CreateTableCompiler$2.execute(CreateTableCompiler.java:175)
     at org.apache.phoenix.jdbc.PhoenixStatement$2.call(PhoenixStatement.java:271)
     at org.apache.phoenix.jdbc.PhoenixStatement$2.call(PhoenixStatement.java:263)
     at org.apache.phoenix.call.CallRunner.run(CallRunner.java:53)
     at org.apache.phoenix.jdbc.PhoenixStatement.executeMutation(PhoenixStatement.java:261)
     at org.apache.phoenix.jdbc.PhoenixStatement.executeUpdate(PhoenixStatement.java:1043)
     at org.apache.phoenix.query.ConnectionQueryServicesImpl$9.call(ConnectionQueryServicesImpl.java:1551)
     at org.apache.phoenix.query.ConnectionQueryServicesImpl$9.call(ConnectionQueryServicesImpl.java:1520)
     at org.apache.phoenix.util.PhoenixContextExecutor.call(PhoenixContextExecutor.java:77)
     at org.apache.phoenix.query.ConnectionQueryServicesImpl.init(ConnectionQueryServicesImpl.java:1520)
     at org.apache.phoenix.jdbc.PhoenixDriver.getConnectionQueryServices(PhoenixDriver.java:162)
     at org.apache.phoenix.jdbc.PhoenixEmbeddedDriver.connect(PhoenixEmbeddedDriver.java:126)
     at org.apache.phoenix.jdbc.PhoenixDriver.connect(PhoenixDriver.java:133)
     at java.sql.DriverManager.getConnection(Unknown Source)
     at java.sql.DriverManager.getConnection(Unknown Source)
     at mysqljbdctest.PhoenixJDBC.main(PhoenixJDBC.java:15)
Caused by: org.apache.hadoop.hbase.MasterNotRunningException: org.apache.hadoop.hbase.MasterNotRunningException:
Can't get connection to ZooKeeper: KeeperErrorCode = ConnectionLoss for /hbase
     at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation$StubMaker.makeStub(HConnectionManager.java:1651)
     at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation$MasterServiceStubMaker.makeStub(HConnectionManager.java:1677)
     at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.getKeepAliveMasterService(HConnectionManager.java:1884)
     at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.getHTableDescriptor(HConnectionManager.java:2671)
     at org.apache.hadoop.hbase.client.HBaseAdmin.getTableDescriptor(HBaseAdmin.java:397)
     at org.apache.hadoop.hbase.client.HBaseAdmin.getTableDescriptor(HBaseAdmin.java:402)
     at org.apache.phoenix.query.ConnectionQueryServicesImpl.ensureTableCreated(ConnectionQueryServicesImpl.java:764)
     ... 20 more



package mysqljbdctest;

import java.sql.*;

public class PhoenixJDBC {

     public static void main(String args[]) {

     try {
         //Register JDBC Driver
         Class.forName("org.apache.phoenix.jdbc.PhoenixDriver").newInstance();

         Connection conn = DriverManager.getConnection("jdbc:phoenix:54.152.31.122","","");

         //Create a Statement class to execute the SQL statement
         Statement stmt = conn.createStatement();

         //Execute the SQL statement and get the results in a Resultset
         ResultSet rs = stmt.executeQuery("select * from US_POPULATION");

         // Iterate through the ResultSet, displaying two values
         // for each row using the getString method

         while (rs.next())
             System.out.println("Name= " + rs.getString("host"));
     }
     catch (SQLException e) {
         e.printStackTrace();
     }
     catch (Exception e) {
         e.printStackTrace();
     }
     }
     }


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-------------------------------------------------------------
Intel Ireland Limited (Branch)
Collinstown Industrial Park, Leixlip, County Kildare, Ireland
Registered Number: E902934

This e-mail and any attachments may contain confidential material for
the sole use of the intended recipient(s). Any review or distribution
by others is strictly prohibited. If you are not the intended
recipient, please contact the sender and delete all copies.
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