Caused by: java.net.ConnectException: Connection refused/Caused by: java.lang.RuntimeException: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
1、使用sqoop技术将mysql的数据导入到Hive出现的错误如下所示：
第一次使用命令如下所示：
1 [hadoop@slaver1 sqoop-1.4.5-cdh5.3.6]$ bin/sqoop import --connect jdbc:mysql://localhost:3306/test --username root --password 123456 --table tb_user --hive-import --m 1 2 Warning: /home/hadoop/soft/sqoop-1.4.5-cdh5.3.6/../hcatalog does not exist! HCatalog jobs will fail. 3 Please set $HCAT_HOME to the root of your HCatalog installation. 4 Warning: /home/hadoop/soft/sqoop-1.4.5-cdh5.3.6/../accumulo does not exist! Accumulo imports will fail. 5 Please set $ACCUMULO_HOME to the root of your Accumulo installation. 6 18/05/18 19:57:51 INFO sqoop.Sqoop: Running Sqoop version: 1.4.5-cdh5.3.6 7 18/05/18 19:57:51 WARN tool.BaseSqoopTool: Setting your password on the command-line is insecure. Consider using -P instead. 8 18/05/18 19:57:51 INFO tool.BaseSqoopTool: Using Hive-specific delimiters for output. You can override 9 18/05/18 19:57:51 INFO tool.BaseSqoopTool: delimiters with --fields-terminated-by, etc. 10 18/05/18 19:57:51 INFO manager.MySQLManager: Preparing to use a MySQL streaming resultset. 11 18/05/18 19:57:51 INFO tool.CodeGenTool: Beginning code generation 12 18/05/18 19:57:51 INFO manager.SqlManager: Executing SQL statement: SELECT t.* FROM `tb_user` AS t LIMIT 1 13 18/05/18 19:57:51 INFO manager.SqlManager: Executing SQL statement: SELECT t.* FROM `tb_user` AS t LIMIT 1 14 18/05/18 19:57:51 INFO orm.CompilationManager: HADOOP_MAPRED_HOME is /home/hadoop/soft/hadoop-2.5.0-cdh5.3.6 15 Note: /tmp/sqoop-hadoop/compile/cb8f61449b0ae521eecbd2bccba40b07/tb_user.java uses or overrides a deprecated API. 16 Note: Recompile with -Xlint:deprecation for details. 17 18/05/18 19:57:54 INFO orm.CompilationManager: Writing jar file: /tmp/sqoop-hadoop/compile/cb8f61449b0ae521eecbd2bccba40b07/tb_user.jar 18 18/05/18 19:57:54 WARN manager.MySQLManager: It looks like you are importing from mysql. 19 18/05/18 19:57:54 WARN manager.MySQLManager: This transfer can be faster! Use the --direct 20 18/05/18 19:57:54 WARN manager.MySQLManager: option to exercise a MySQL-specific fast path. 21 18/05/18 19:57:54 INFO manager.MySQLManager: Setting zero DATETIME behavior to convertToNull (mysql) 22 18/05/18 19:57:54 INFO mapreduce.ImportJobBase: Beginning import of tb_user 23 18/05/18 19:57:55 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable 24 18/05/18 19:57:55 INFO Configuration.deprecation: mapred.jar is deprecated. Instead, use mapreduce.job.jar 25 18/05/18 19:57:56 INFO Configuration.deprecation: mapred.map.tasks is deprecated. Instead, use mapreduce.job.maps 26 18/05/18 19:57:56 INFO client.RMProxy: Connecting to ResourceManager at slaver1/192.168.19.131:8032 27 18/05/18 19:57:59 INFO db.DBInputFormat: Using read commited transaction isolation 28 18/05/18 19:58:00 INFO mapreduce.JobSubmitter: number of splits:1 29 18/05/18 19:58:00 INFO mapreduce.JobSubmitter: Submitting tokens for job: job_1526642793183_0002 30 18/05/18 19:58:01 INFO impl.YarnClientImpl: Submitted application application_1526642793183_0002 31 18/05/18 19:58:01 INFO mapreduce.Job: The url to track the job: http://slaver1:8088/proxy/application_1526642793183_0002/ 32 18/05/18 19:58:01 INFO mapreduce.Job: Running job: job_1526642793183_0002 33 18/05/18 19:58:14 INFO mapreduce.Job: Job job_1526642793183_0002 running in uber mode : false 34 18/05/18 19:58:14 INFO mapreduce.Job: map 0% reduce 0% 35 18/05/18 19:58:30 INFO mapreduce.Job: Task Id : attempt_1526642793183_0002_m_000000_0, Status : FAILED 36 Error: java.lang.RuntimeException: java.lang.RuntimeException: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure 37 38 The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. 39 at org.apache.sqoop.mapreduce.db.DBInputFormat.setConf(DBInputFormat.java:167) 40 at org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java:73) 41 at org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:133) 42 at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:746) 43 at org.apache.hadoop.mapred.MapTask.run(MapTask.java:341) 44 at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:168) 45 at java.security.AccessController.doPrivileged(Native Method) 46 at javax.security.auth.Subject.doAs(Subject.java:415) 47 at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1642) 48 at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:163) 49 Caused by: java.lang.RuntimeException: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure 50 51 The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. 52 at org.apache.sqoop.mapreduce.db.DBInputFormat.getConnection(DBInputFormat.java:220) 53 at org.apache.sqoop.mapreduce.db.DBInputFormat.setConf(DBInputFormat.java:165) 54 ... 9 more 55 Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure 56 57 The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. 58 at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) 59 at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57) 60 at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) 61 at java.lang.reflect.Constructor.newInstance(Constructor.java:526) 62 at com.mysql.jdbc.Util.handleNewInstance(Util.java:408) 63 at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1137) 64 at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:356) 65 at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2504) 66 at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2541) 67 at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2323) 68 at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:832) 69 at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:46) 70 at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) 71 at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57) 72 at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) 73 at java.lang.reflect.Constructor.newInstance(Constructor.java:526) 74 at com.mysql.jdbc.Util.handleNewInstance(Util.java:408) 75 at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:417) 76 at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:344) 77 at java.sql.DriverManager.getConnection(DriverManager.java:571) 78 at java.sql.DriverManager.getConnection(DriverManager.java:215) 79 at org.apache.sqoop.mapreduce.db.DBConfiguration.getConnection(DBConfiguration.java:302) 80 at org.apache.sqoop.mapreduce.db.DBInputFormat.getConnection(DBInputFormat.java:213) 81 ... 10 more 82 Caused by: java.net.ConnectException: Connection refused 83 at java.net.PlainSocketImpl.socketConnect(Native Method) 84 at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339) 85 at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200) 86 at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182) 87 at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) 88 at java.net.Socket.connect(Socket.java:579) 89 at java.net.Socket.connect(Socket.java:528) 90 at java.net.Socket.<init>(Socket.java:425) 91 at java.net.Socket.<init>(Socket.java:241) 92 at com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:258) 93 at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:306) 94 ... 26 more 95 96 18/05/18 19:58:37 INFO mapreduce.Job: Task Id : attempt_1526642793183_0002_m_000000_1, Status : FAILED 97 Error: java.lang.RuntimeException: java.lang.RuntimeException: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure 98 99 The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. 100 at org.apache.sqoop.mapreduce.db.DBInputFormat.setConf(DBInputFormat.java:167) 101 at org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java:73) 102 at org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:133) 103 at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:746) 104 at org.apache.hadoop.mapred.MapTask.run(MapTask.java:341) 105 at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:168) 106 at java.security.AccessController.doPrivileged(Native Method) 107 at javax.security.auth.Subject.doAs(Subject.java:415) 108 at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1642) 109 at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:163) 110 Caused by: java.lang.RuntimeException: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure 111 112 The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. 113 at org.apache.sqoop.mapreduce.db.DBInputFormat.getConnection(DBInputFormat.java:220) 114 at org.apache.sqoop.mapreduce.db.DBInputFormat.setConf(DBInputFormat.java:165) 115 ... 9 more 116 Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure 117 118 The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. 119 at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) 120 at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57) 121 at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) 122 at java.lang.reflect.Constructor.newInstance(Constructor.java:526) 123 at com.mysql.jdbc.Util.handleNewInstance(Util.java:408) 124 at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1137) 125 at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:356) 126 at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2504) 127 at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2541) 128 at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2323) 129 at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:832) 130 at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:46) 131 at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) 132 at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57) 133 at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) 134 at java.lang.reflect.Constructor.newInstance(Constructor.java:526) 135 at com.mysql.jdbc.Util.handleNewInstance(Util.java:408) 136 at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:417) 137 at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:344) 138 at java.sql.DriverManager.getConnection(DriverManager.java:571) 139 at java.sql.DriverManager.getConnection(DriverManager.java:215) 140 at org.apache.sqoop.mapreduce.db.DBConfiguration.getConnection(DBConfiguration.java:302) 141 at org.apache.sqoop.mapreduce.db.DBInputFormat.getConnection(DBInputFormat.java:213) 142 ... 10 more 143 Caused by: java.net.ConnectException: Connection refused 144 at java.net.PlainSocketImpl.socketConnect(Native Method) 145 at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339) 146 at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200) 147 at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182) 148 at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) 149 at java.net.Socket.connect(Socket.java:579) 150 at java.net.Socket.connect(Socket.java:528) 151 at java.net.Socket.<init>(Socket.java:425) 152 at java.net.Socket.<init>(Socket.java:241) 153 at com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:258) 154 at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:306) 155 ... 26 more 156 157 18/05/18 19:58:44 INFO mapreduce.Job: Task Id : attempt_1526642793183_0002_m_000000_2, Status : FAILED 158 Error: java.lang.RuntimeException: java.lang.RuntimeException: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure 159 160 The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. 161 at org.apache.sqoop.mapreduce.db.DBInputFormat.setConf(DBInputFormat.java:167) 162 at org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java:73) 163 at org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:133) 164 at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:746) 165 at org.apache.hadoop.mapred.MapTask.run(MapTask.java:341) 166 at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:168) 167 at java.security.AccessController.doPrivileged(Native Method) 168 at javax.security.auth.Subject.doAs(Subject.java:415) 169 at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1642) 170 at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:163) 171 Caused by: java.lang.RuntimeException: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure 172 173 The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. 174 at org.apache.sqoop.mapreduce.db.DBInputFormat.getConnection(DBInputFormat.java:220) 175 at org.apache.sqoop.mapreduce.db.DBInputFormat.setConf(DBInputFormat.java:165) 176 ... 9 more 177 Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure 178 179 The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. 180 at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) 181 at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57) 182 at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) 183 at java.lang.reflect.Constructor.newInstance(Constructor.java:526) 184 at com.mysql.jdbc.Util.handleNewInstance(Util.java:408) 185 at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1137) 186 at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:356) 187 at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2504) 188 at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2541) 189 at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2323) 190 at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:832) 191 at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:46) 192 at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) 193 at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57) 194 at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) 195 at java.lang.reflect.Constructor.newInstance(Constructor.java:526) 196 at com.mysql.jdbc.Util.handleNewInstance(Util.java:408) 197 at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:417) 198 at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:344) 199 at java.sql.DriverManager.getConnection(DriverManager.java:571) 200 at java.sql.DriverManager.getConnection(DriverManager.java:215) 201 at org.apache.sqoop.mapreduce.db.DBConfiguration.getConnection(DBConfiguration.java:302) 202 at org.apache.sqoop.mapreduce.db.DBInputFormat.getConnection(DBInputFormat.java:213) 203 ... 10 more 204 Caused by: java.net.ConnectException: Connection refused 205 at java.net.PlainSocketImpl.socketConnect(Native Method) 206 at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339) 207 at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200) 208 at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182) 209 at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) 210 at java.net.Socket.connect(Socket.java:579) 211 at java.net.Socket.connect(Socket.java:528) 212 at java.net.Socket.<init>(Socket.java:425) 213 at java.net.Socket.<init>(Socket.java:241) 214 at com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:258) 215 at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:306) 216 ... 26 more 217 218 ^C[hadoop@slaver1 sqoop-1.4.5-cdh5.3.6]$
2、第二次导入使用命令如：
主要是注意连接的主机名称别写错了，账号和密码信息。
1 [hadoop@slaver1 sqoop-1.4.5-cdh5.3.6]$ bin/sqoop import \ 2 > --connect jdbc:mysql://slaver1:3306/test \ 3 > --username root \ 4 > --password 123456 \ 5 > --table tb_user \ 6 > --hive-import \ 7 > --m 1 8 Warning: /home/hadoop/soft/sqoop-1.4.5-cdh5.3.6/../hcatalog does not exist! HCatalog jobs will fail. 9 Please set $HCAT_HOME to the root of your HCatalog installation. 10 Warning: /home/hadoop/soft/sqoop-1.4.5-cdh5.3.6/../accumulo does not exist! Accumulo imports will fail. 11 Please set $ACCUMULO_HOME to the root of your Accumulo installation. 12 18/05/18 20:01:43 INFO sqoop.Sqoop: Running Sqoop version: 1.4.5-cdh5.3.6 13 18/05/18 20:01:43 WARN tool.BaseSqoopTool: Setting your password on the command-line is insecure. Consider using -P instead. 14 18/05/18 20:01:43 INFO tool.BaseSqoopTool: Using Hive-specific delimiters for output. You can override 15 18/05/18 20:01:43 INFO tool.BaseSqoopTool: delimiters with --fields-terminated-by, etc. 16 18/05/18 20:01:43 INFO manager.MySQLManager: Preparing to use a MySQL streaming resultset. 17 18/05/18 20:01:43 INFO tool.CodeGenTool: Beginning code generation 18 18/05/18 20:01:44 INFO manager.SqlManager: Executing SQL statement: SELECT t.* FROM `tb_user` AS t LIMIT 1 19 18/05/18 20:01:44 INFO manager.SqlManager: Executing SQL statement: SELECT t.* FROM `tb_user` AS t LIMIT 1 20 18/05/18 20:01:44 INFO orm.CompilationManager: HADOOP_MAPRED_HOME is /home/hadoop/soft/hadoop-2.5.0-cdh5.3.6 21 Note: /tmp/sqoop-hadoop/compile/02d8e06c0a500fbe72ac09d7f0dca9c3/tb_user.java uses or overrides a deprecated API. 22 Note: Recompile with -Xlint:deprecation for details. 23 18/05/18 20:01:47 INFO orm.CompilationManager: Writing jar file: /tmp/sqoop-hadoop/compile/02d8e06c0a500fbe72ac09d7f0dca9c3/tb_user.jar 24 18/05/18 20:01:47 WARN manager.MySQLManager: It looks like you are importing from mysql. 25 18/05/18 20:01:47 WARN manager.MySQLManager: This transfer can be faster! Use the --direct 26 18/05/18 20:01:47 WARN manager.MySQLManager: option to exercise a MySQL-specific fast path. 27 18/05/18 20:01:47 INFO manager.MySQLManager: Setting zero DATETIME behavior to convertToNull (mysql) 28 18/05/18 20:01:47 INFO mapreduce.ImportJobBase: Beginning import of tb_user 29 18/05/18 20:01:47 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable 30 18/05/18 20:01:48 INFO Configuration.deprecation: mapred.jar is deprecated. Instead, use mapreduce.job.jar 31 18/05/18 20:01:49 INFO Configuration.deprecation: mapred.map.tasks is deprecated. Instead, use mapreduce.job.maps 32 18/05/18 20:01:49 INFO client.RMProxy: Connecting to ResourceManager at slaver1/192.168.19.131:8032 33 18/05/18 20:01:52 INFO db.DBInputFormat: Using read commited transaction isolation 34 18/05/18 20:01:52 INFO mapreduce.JobSubmitter: number of splits:1 35 18/05/18 20:01:53 INFO mapreduce.JobSubmitter: Submitting tokens for job: job_1526642793183_0003 36 18/05/18 20:01:53 INFO impl.YarnClientImpl: Submitted application application_1526642793183_0003 37 18/05/18 20:01:54 INFO mapreduce.Job: The url to track the job: http://slaver1:8088/proxy/application_1526642793183_0003/ 38 18/05/18 20:01:54 INFO mapreduce.Job: Running job: job_1526642793183_0003 39 18/05/18 20:02:05 INFO mapreduce.Job: Job job_1526642793183_0003 running in uber mode : false 40 18/05/18 20:02:05 INFO mapreduce.Job: map 0% reduce 0% 41 18/05/18 20:02:16 INFO mapreduce.Job: map 100% reduce 0% 42 18/05/18 20:02:16 INFO mapreduce.Job: Job job_1526642793183_0003 completed successfully 43 18/05/18 20:02:16 INFO mapreduce.Job: Counters: 30 44 File System Counters 45 FILE: Number of bytes read=0 46 FILE: Number of bytes written=132972 47 FILE: Number of read operations=0 48 FILE: Number of large read operations=0 49 FILE: Number of write operations=0 50 HDFS: Number of bytes read=87 51 HDFS: Number of bytes written=153 52 HDFS: Number of read operations=4 53 HDFS: Number of large read operations=0 54 HDFS: Number of write operations=2 55 Job Counters 56 Launched map tasks=1 57 Other local map tasks=1 58 Total time spent by all maps in occupied slots (ms)=7821 59 Total time spent by all reduces in occupied slots (ms)=0 60 Total time spent by all map tasks (ms)=7821 61 Total vcore-seconds taken by all map tasks=7821 62 Total megabyte-seconds taken by all map tasks=8008704 63 Map-Reduce Framework 64 Map input records=10 65 Map output records=10 66 Input split bytes=87 67 Spilled Records=0 68 Failed Shuffles=0 69 Merged Map outputs=0 70 GC time elapsed (ms)=88 71 CPU time spent (ms)=1230 72 Physical memory (bytes) snapshot=100917248 73 Virtual memory (bytes) snapshot=841768960 74 Total committed heap usage (bytes)=15794176 75 File Input Format Counters 76 Bytes Read=0 77 File Output Format Counters 78 Bytes Written=153 79 18/05/18 20:02:16 INFO mapreduce.ImportJobBase: Transferred 153 bytes in 27.1712 seconds (5.631 bytes/sec) 80 18/05/18 20:02:16 INFO mapreduce.ImportJobBase: Retrieved 10 records. 81 18/05/18 20:02:16 INFO manager.SqlManager: Executing SQL statement: SELECT t.* FROM `tb_user` AS t LIMIT 1 82 18/05/18 20:02:16 INFO hive.HiveImport: Loading uploaded data into Hive 83 18/05/18 20:02:23 INFO hive.HiveImport: 84 18/05/18 20:02:23 INFO hive.HiveImport: Logging initialized using configuration in jar:file:/home/hadoop/soft/hive-0.13.1-cdh5.3.6/lib/hive-common-0.13.1-cdh5.3.6.jar!/hive-log4j.properties 85 18/05/18 20:02:36 INFO hive.HiveImport: OK 86 18/05/18 20:02:36 INFO hive.HiveImport: Time taken: 4.423 seconds 87 18/05/18 20:02:36 INFO hive.HiveImport: Loading data to table default.tb_user 88 18/05/18 20:02:38 INFO hive.HiveImport: Table default.tb_user stats: [numFiles=1, numRows=0, totalSize=153, rawDataSize=0] 89 18/05/18 20:02:38 INFO hive.HiveImport: OK 90 18/05/18 20:02:38 INFO hive.HiveImport: Time taken: 1.68 seconds 91 18/05/18 20:02:38 INFO hive.HiveImport: Hive import complete. 92 18/05/18 20:02:38 INFO hive.HiveImport: Export directory is not empty, keeping it. 93 [hadoop@slaver1 sqoop-1.4.5-cdh5.3.6]$
3、由于mysql导入到Hive中模式是在default中，所以查看的时候可以去default数据库中查看。
1 [hadoop@slaver1 ~]$ hive 2 3 Logging initialized using configuration in jar:file:/home/hadoop/soft/hive-0.13.1-cdh5.3.6/lib/hive-common-0.13.1-cdh5.3.6.jar!/hive-log4j.properties 4 hive> show databases; 5 OK 6 course 7 default 8 test0516 9 test20180509 10 Time taken: 0.759 seconds, Fetched: 4 row(s) 11 hive> use default; 12 OK 13 Time taken: 0.025 seconds 14 hive> show tables; 15 OK 16 tb_user 17 user 18 Time taken: 0.035 seconds, Fetched: 2 row(s) 19 hive> select * from tb_user; 20 OK 21 1 张三 15236083001 22 2 李四 15236083001 23 3 王五 15236083001 24 4 小明 15236083001 25 5 小红 15236083001 26 6 小别 15236083001 27 7 7 7 28 8 8 8 29 9 9 9 30 10 10 10 31 Time taken: 1.14 seconds, Fetched: 10 row(s) 32 hive>
