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:[email protected]] Sent: Monday, February 23, 2015 3:13 PM To: [email protected] 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:[email protected]<mailto:[email protected]>] Sent: 23 February 2015 14:59 To: [email protected]<mailto:[email protected]> 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(); } } } ------------------------------------------------------------- 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). 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