Exception in thread "main" java.lang.RuntimeException: Error in configuring object
at org.apache.hadoop.util.ReflectionUtils.setJobConf(ReflectionUtils.java:93)
at org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java:64)
at org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:117)
at org.apache.hadoop.mapred.JobConf.getInputFormat(JobConf.java:596)
at org.apache.hadoop.mapred.JobClient.writeOldSplits(JobClient.java:1081)
at org.apache.hadoop.mapred.JobClient.writeSplits(JobClient.java:1073)
at org.apache.hadoop.mapred.JobClient.access$700(JobClient.java:179)
at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:983)
at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:936)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:415)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1190)
at org.apache.hadoop.mapred.JobClient.submitJobInternal(JobClient.java:936)
at org.apache.hadoop.mapred.JobClient.submitJob(JobClient.java:910)
at org.apache.hadoop.mapred.JobClient.runJob(JobClient.java:1353)
at com.hebut.mr.ReadDB.main(ReadDB.java:119)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at org.apache.hadoop.util.ReflectionUtils.setJobConf(ReflectionUtils.java:88)
... 15 more
Caused by: java.lang.RuntimeException: java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
at org.apache.hadoop.mapred.lib.db.DBInputFormat.configure(DBInputFormat.java:271)
... 20 more
Caused by: java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:188)
at org.apache.hadoop.mapred.lib.db.DBConfiguration.getConnection(DBConfiguration.java:123)
at org.apache.hadoop.mapred.lib.db.DBInputFormat.configure(DBInputFormat.java:266)
... 20 more
uj5u.com熱心網友回復：
1 MySQL JDBC 的驅動.jar包匯入到工程的classpath中了沒有？2 在情況1下沒有錯誤，將MySQL JDBC 的驅動.jar包拷貝到另外的節點上的hdfs/lib目錄下？
3 在上述兩種情況下，bin/hadoop jar yourapp.jar MainClass -libjars mysql-jdbc.jar
希望能幫助你。
uj5u.com熱心網友回復：
首先先表示感謝，這個問題還是沒解決 我看教程里弄得 還是不行 我想知道，是不是MYSQL只在Master機子上安裝，還是每臺機子都得安裝？謝謝uj5u.com熱心網友回復：
樓主，這個問題你解決了嗎，，同樣的問題啊，樓主如果解決了的話，可以告訴我該怎么弄啊，已崩潰了！！！轉載請註明出處，本文鏈接：https://www.uj5u.com/qita/94349.html
標籤：云存儲
上一篇：求高人指點：CloudStack4.4.0上部署Hyper-V，總是報錯：無法添加設備“Virtual Hard Disk”...