不多说，直接上干货！

对于在oozie里放置Mysql驱动包的总结

　　根据网上的参考以及我个人经验安装的使用

　　（1）放一份到$OOZIE_HOME/libext下 （是 mysql-connector-java-5.1.21.jar）（这里放到bigdatamaster节点）

　　（2）放一份到$OOZIE_HOME/lib下 （是 mysql-connector-java-5.1.21.jar）（这里放到bigdatamaster节点）

　　（3）放一份到/usr/share/java/下（一定要重命名，mv  mysql-connector-java-5.1.21-bin.jar   mysql-connector-java.jar）（这里放到bigdatamaster节点）

　　（4）放一份到$JAVA_HOME/jre/lib/ext （是 mysql-connector-java-5.1.21.jar）（这里放到bigdatamaster节点、bigdataslave1节点和bigdataslave2节点）

　　（5）放一份到$OOZIE_HOME/oozie-server/lib下 （是 mysql-connector-java-5.1.21.jar）（这里放到bigdatamaster节点）

　　（1）放一份到$OOZIE_HOME/libext下

[hadoop@bigdatamaster libext]$ pwd

/home/hadoop/app/oozie-4.1.-cdh5.5.4/libext

[hadoop@bigdatamaster libext]$ ls

activation-1.1.jar                     commons-logging-1.1.jar                               hadoop-mapreduce-client-shuffle-2.6.-cdh5.5.4.jar  leveldbjni-all-1.8.jar

apacheds-i18n-2.0.-M15.jar            commons-math3-3.1..jar                               hadoop-yarn-api-2.6.-cdh5.5.4.jar                  log4j-1.2..jar

apacheds-kerberos-codec-2.0.-M15.jar  commons-net-3.1.jar                                   hadoop-yarn-client-2.6.-cdh5.5.4.jar               mysql-connector-java-5.1..jar

api-asn1-api-1.0.-M20.jar             curator-client-2.7..jar                              hadoop-yarn-common-2.6.-cdh5.5.4.jar               netty-3.6..Final.jar

api-util-1.0.-M20.jar                 curator-framework-2.7..jar                           hadoop-yarn-server-common-2.6.-cdh5.5.4.jar        netty-all-4.0..Final.jar

avro-1.7.-cdh5.5.4.jar                curator-recipes-2.7..jar                             htrace-core4-4.0.-incubating.jar                   paranamer-2.3.jar

aws-java-sdk-core-1.10..jar           ext-2.2                                               httpclient-4.2..jar                                protobuf-java-2.5..jar

aws-java-sdk-kms-1.10..jar            ext-2.2.zip                                           httpcore-4.2..jar                                  servlet-api-2.5.jar

aws-java-sdk-s3-1.10..jar             gson-2.2..jar                                        jackson-annotations-2.2..jar                       slf4j-api-1.7..jar

commons-beanutils-1.7..jar            guava-11.0..jar                                      jackson-core-2.2..jar                              slf4j-log4j12-1.7..jar

commons-beanutils-core-1.8..jar       hadoop-annotations-2.6.-cdh5.5.4.jar                 jackson-core-asl-1.8..jar                          snappy-java-1.0.4.1.jar

commons-cli-1.2.jar                    hadoop-auth-2.6.-cdh5.5.4.jar                        jackson-databind-2.2..jar                          stax-api-1.0-.jar

commons-codec-1.4.jar                  hadoop-aws-2.6.-cdh5.5.4.jar                         jackson-jaxrs-1.8..jar                             xercesImpl-2.10..jar

commons-collections-3.2..jar          hadoop-client-2.6.-cdh5.5.4.jar                      jackson-mapper-asl-1.8..jar                        xml-apis-1.4..jar

commons-compress-1.4..jar             hadoop-common-2.6.-cdh5.5.4.jar                      jackson-xc-1.8..jar                                xmlenc-0.52.jar

commons-configuration-1.6.jar          hadoop-hdfs-2.6.-cdh5.5.4.jar                        jaxb-api-2.2..jar                                  xz-1.0.jar

commons-digester-1.8.jar               hadoop-mapreduce-client-app-2.6.-cdh5.5.4.jar        jersey-client-1.9.jar                               zookeeper-3.4.-cdh5.5.4.jar

commons-httpclient-3.1.jar             hadoop-mapreduce-client-common-2.6.-cdh5.5.4.jar     jersey-core-1.9.jar

commons-io-2.4.jar                     hadoop-mapreduce-client-core-2.6.-cdh5.5.4.jar       jetty-util-6.1..cloudera..jar

commons-lang-2.4.jar                   hadoop-mapreduce-client-jobclient-2.6.-cdh5.5.4.jar  jsr305-3.0..jar

[hadoop@bigdatamaster libext]$

　　（2）放一份到$OOZIE_HOME/lib下

[hadoop@bigdatamaster lib]$ pwd

/home/hadoop/app/oozie-4.1.0-cdh5.5.4/lib

[hadoop@bigdatamaster lib]$ ls

activemq-client-5.10.2.jar             commons-codec-1.4.jar                        guava-11.0.2.jar                jackson-mapper-asl-1.8.8.jar     slf4j-simple-1.7.5.jar

apacheds-i18n-2.0.0-M15.jar            commons-logging-1.1.jar                      hadoop-auth-2.6.0-cdh5.5.4.jar  jline-2.11.jar                   xercesImpl-2.10.0.jar

apacheds-kerberos-codec-2.0.0-M15.jar  curator-client-2.7.1.jar                     hawtbuf-1.10.jar                json-simple-1.1.jar              xml-apis-1.4.01.jar

api-asn1-api-1.0.0-M20.jar             curator-framework-2.7.1.jar                  httpclient-4.2.5.jar            jsr305-1.3.9.jar                 zookeeper-3.4.5-cdh5.5.4.jar

api-util-1.0.0-M20.jar                 geronimo-j2ee-management_1.1_spec-1.0.1.jar  httpcore-4.2.5.jar              oozie-client-4.1.0-cdh5.5.4.jar

commons-cli-1.2.jar                    geronimo-jms_1.1_spec-1.1.1.jar              jackson-core-asl-1.8.8.jar      slf4j-api-1.7.5.jar

[hadoop@bigdatamaster lib]$ rz

[hadoop@bigdatamaster lib]$ ls

activemq-client-5.10.2.jar             commons-codec-1.4.jar                        guava-11.0.2.jar                jackson-mapper-asl-1.8.8.jar     slf4j-api-1.7.5.jar

apacheds-i18n-2.0.0-M15.jar            commons-logging-1.1.jar                      hadoop-auth-2.6.0-cdh5.5.4.jar  jline-2.11.jar                   slf4j-simple-1.7.5.jar

apacheds-kerberos-codec-2.0.0-M15.jar  curator-client-2.7.1.jar                     hawtbuf-1.10.jar                json-simple-1.1.jar              xercesImpl-2.10.0.jar

api-asn1-api-1.0.0-M20.jar             curator-framework-2.7.1.jar                  httpclient-4.2.5.jar            jsr305-1.3.9.jar                 xml-apis-1.4.01.jar

api-util-1.0.0-M20.jar                 geronimo-j2ee-management_1.1_spec-1.0.1.jar  httpcore-4.2.5.jar              mysql-connector-java-5.1.21.jar  zookeeper-3.4.5-cdh5.5.4.jar

commons-cli-1.2.jar                    geronimo-jms_1.1_spec-1.1.1.jar              jackson-core-asl-1.8.8.jar      oozie-client-4.1.0-cdh5.5.4.jar

[hadoop@bigdatamaster lib]$
[hadoop@bigdatamaster lib]$ chmod 755 mysql-connector-java-5.1.21.jar

[hadoop@bigdatamaster lib]$ ll

total 9908

-rwxr-xr-x 1 hadoop hadoop 1178428 Apr 26  2016 activemq-client-5.10.2.jar

-rwxr-xr-x 1 hadoop hadoop   44925 Apr 26  2016 apacheds-i18n-2.0.0-M15.jar

-rwxr-xr-x 1 hadoop hadoop  691479 Apr 26  2016 apacheds-kerberos-codec-2.0.0-M15.jar

-rwxr-xr-x 1 hadoop hadoop   16560 Apr 26  2016 api-asn1-api-1.0.0-M20.jar

-rwxr-xr-x 1 hadoop hadoop   79912 Apr 26  2016 api-util-1.0.0-M20.jar

-rwxr-xr-x 1 hadoop hadoop   41123 Apr 26  2016 commons-cli-1.2.jar

-rwxr-xr-x 1 hadoop hadoop   58160 Apr 26  2016 commons-codec-1.4.jar

-rwxr-xr-x 1 hadoop hadoop   52915 Apr 26  2016 commons-logging-1.1.jar

-rwxr-xr-x 1 hadoop hadoop   69500 Apr 26  2016 curator-client-2.7.1.jar

-rwxr-xr-x 1 hadoop hadoop  186273 Apr 26  2016 curator-framework-2.7.1.jar

-rwxr-xr-x 1 hadoop hadoop   20220 Apr 26  2016 geronimo-j2ee-management_1.1_spec-1.0.1.jar

-rwxr-xr-x 1 hadoop hadoop   32359 Apr 26  2016 geronimo-jms_1.1_spec-1.1.1.jar

-rwxr-xr-x 1 hadoop hadoop 1648200 Apr 26  2016 guava-11.0.2.jar

-rwxr-xr-x 1 hadoop hadoop   73940 Apr 26  2016 hadoop-auth-2.6.0-cdh5.5.4.jar

-rwxr-xr-x 1 hadoop hadoop   50150 Apr 26  2016 hawtbuf-1.10.jar

-rwxr-xr-x 1 hadoop hadoop  433368 Apr 26  2016 httpclient-4.2.5.jar

-rwxr-xr-x 1 hadoop hadoop  227708 Apr 26  2016 httpcore-4.2.5.jar

-rwxr-xr-x 1 hadoop hadoop  227500 Apr 26  2016 jackson-core-asl-1.8.8.jar

-rwxr-xr-x 1 hadoop hadoop  668564 Apr 26  2016 jackson-mapper-asl-1.8.8.jar

-rwxr-xr-x 1 hadoop hadoop  208781 Apr 26  2016 jline-2.11.jar

-rwxr-xr-x 1 hadoop hadoop   16046 Apr 26  2016 json-simple-1.1.jar

-rwxr-xr-x 1 hadoop hadoop   33015 Apr 26  2016 jsr305-1.3.9.jar

-rwxr-xr-x 1 hadoop hadoop  827942 Nov  3  2016 mysql-connector-java-5.1.21.jar

-rwxr-xr-x 1 hadoop hadoop  229725 Apr 26  2016 oozie-client-4.1.0-cdh5.5.4.jar

-rwxr-xr-x 1 hadoop hadoop   26084 Apr 26  2016 slf4j-api-1.7.5.jar

-rwxr-xr-x 1 hadoop hadoop   10680 Apr 26  2016 slf4j-simple-1.7.5.jar

-rwxr-xr-x 1 hadoop hadoop 1363159 Apr 26  2016 xercesImpl-2.10.0.jar

-rwxr-xr-x 1 hadoop hadoop  220536 Apr 26  2016 xml-apis-1.4.01.jar

-rwxr-xr-x 1 hadoop hadoop 1352025 Apr 26  2016 zookeeper-3.4.5-cdh5.5.4.jar

[hadoop@bigdatamaster lib]$

　　（3）

这个报错很常见，原以为把mysql-connector-java-*-bin.jar丢到oozie的lib即可，但是发现依然宝盖错误。后来在网上找到需要将这个包放到这个路径下就通过了(名字需要修改下)

/usr/share/java/mysql-connector-java.jar

[hadoop@bigdatamaster java]$ pwd

/usr/share/java

[hadoop@bigdatamaster java]$ su root

Password:

[root@bigdatamaster java]# ls

ant                      dom3-xerces-j2-2.7.1.jar          java_cup-runtime-0.10k.jar  js-1.7.jar              rhino.jar                        xml-commons-apis.jar

ant-1.7.1.jar            dom3-xerces-j2.jar                java_cup-runtime.jar        js.jar                  sinjdoc.jar                      xml-commons-jaxp-1.3-apis.jar

ant-bootstrap-1.7.1.jar  dom3-xml-commons-apis-1.3.04.jar  jaxp13.jar                  libgcj-4.4.4.jar        xerces-j2-2.7.1.jar              xml-commons-resolver-1.1.jar

ant-bootstrap.jar        dom3-xml-commons-apis.jar         jaxp.jar                    libgcj-4.4.7.jar        xerces-j2.jar                    xml-commons-resolver.jar

ant.jar                  gcj-endorsed                      jaxp_parser_impl.jar        rhino-1.7.jar           xml-commons-apis-1.3.04.jar

ant-launcher-1.7.1.jar   java_cup-0.10k.jar                jline-0.9.94.jar            rhino-examples-1.7.jar  xml-commons-apis-ext-1.3.04.jar

ant-launcher.jar         java_cup.jar                      jline.jar                   rhino-examples.jar      xml-commons-apis-ext.jar

[root@bigdatamaster java]# rz

[root@bigdatamaster java]# ls

ant                      dom3-xerces-j2-2.7.1.jar          java_cup-runtime-0.10k.jar  js-1.7.jar                       rhino-examples.jar               xml-commons-apis-ext.jar

ant-1.7.1.jar            dom3-xerces-j2.jar                java_cup-runtime.jar        js.jar                           rhino.jar                        xml-commons-apis.jar

ant-bootstrap-1.7.1.jar  dom3-xml-commons-apis-1.3.04.jar  jaxp13.jar                  libgcj-4.4.4.jar                 sinjdoc.jar                      xml-commons-jaxp-1.3-apis.jar

ant-bootstrap.jar        dom3-xml-commons-apis.jar         jaxp.jar                    libgcj-4.4.7.jar                 xerces-j2-2.7.1.jar              xml-commons-resolver-1.1.jar

ant.jar                  gcj-endorsed                      jaxp_parser_impl.jar        mysql-connector-java-5.1.21.jar  xerces-j2.jar                    xml-commons-resolver.jar

ant-launcher-1.7.1.jar   java_cup-0.10k.jar                jline-0.9.94.jar            rhino-1.7.jar                    xml-commons-apis-1.3.04.jar

ant-launcher.jar         java_cup.jar                      jline.jar                   rhino-examples-1.7.jar           xml-commons-apis-ext-1.3.04.jar

[root@bigdatamaster java]# ln -s mysql-connector-java-5.1.21.jar mysql-connector-java.jar

[root@bigdatamaster java]# ll

total 15036

drwxr-xr-x  2 root root     4096 May 11  2016 ant

-rw-r--r--  1 root root  1322826 May 11  2016 ant-1.7.1.jar

-rw-r--r--  1 root root    18834 May 11  2016 ant-bootstrap-1.7.1.jar

lrwxrwxrwx  1 root root       23 May  5 20:38 ant-bootstrap.jar -> ant-bootstrap-1.7.1.jar

lrwxrwxrwx  1 root root       13 May  5 20:38 ant.jar -> ant-1.7.1.jar

-rw-r--r--  1 root root    12129 May 11  2016 ant-launcher-1.7.1.jar

lrwxrwxrwx  1 root root       22 May  5 20:38 ant-launcher.jar -> ant-launcher-1.7.1.jar

lrwxrwxrwx  1 root root       19 May  5 20:36 dom3-xerces-j2-2.7.1.jar -> xerces-j2-2.7.1.jar

lrwxrwxrwx  1 root root       24 May  5 20:36 dom3-xerces-j2.jar -> dom3-xerces-j2-2.7.1.jar

lrwxrwxrwx  1 root root       27 May  5 20:36 dom3-xml-commons-apis-1.3.04.jar -> xml-commons-apis-1.3.04.jar

lrwxrwxrwx  1 root root       32 May  5 20:36 dom3-xml-commons-apis.jar -> dom3-xml-commons-apis-1.3.04.jar

drwxr-xr-x  2 root root     4096 Mar 22 00:04 gcj-endorsed

-rw-r--r--  1 root root    73310 Aug 21  2010 java_cup-0.10k.jar

lrwxrwxrwx  1 root root       18 May  5 20:36 java_cup.jar -> java_cup-0.10k.jar

-rw-r--r--  1 root root     9053 Aug 21  2010 java_cup-runtime-0.10k.jar

lrwxrwxrwx  1 root root       26 May  5 20:36 java_cup-runtime.jar -> java_cup-runtime-0.10k.jar

lrwxrwxrwx  1 root root       20 May  5 20:36 jaxp13.jar -> xml-commons-apis.jar

lrwxrwxrwx  1 root root       20 May  5 20:36 jaxp.jar -> xml-commons-apis.jar

lrwxrwxrwx  1 root root       34 May  5 20:36 jaxp_parser_impl.jar -> /etc/alternatives/jaxp_parser_impl

-rw-r--r--. 1 root root    84746 Aug 22  2010 jline-0.9.94.jar

lrwxrwxrwx. 1 root root       16 May  4 18:10 jline.jar -> jline-0.9.94.jar

lrwxrwxrwx. 1 root root       13 May  4 18:10 js-1.7.jar -> rhino-1.7.jar

lrwxrwxrwx. 1 root root       10 May  4 18:10 js.jar -> js-1.7.jar

-rw-r--r--  1 root root 10143547 Mar 22 00:05 libgcj-4.4.4.jar

lrwxrwxrwx  1 root root       16 May  5 20:36 libgcj-4.4.7.jar -> libgcj-4.4.4.jar

-rw-r--r--  1 root root   827942 Nov  3  2016 mysql-connector-java-5.1.21.jar

lrwxrwxrwx  1 root root       31 May  9 14:30 mysql-connector-java.jar -> mysql-connector-java-5.1.21.jar

-rw-r--r--. 1 root root   807405 Aug 22  2010 rhino-1.7.jar

-rw-r--r--. 1 root root    18260 Aug 22  2010 rhino-examples-1.7.jar

lrwxrwxrwx. 1 root root       22 May  4 18:10 rhino-examples.jar -> rhino-examples-1.7.jar

lrwxrwxrwx. 1 root root       13 May  4 18:10 rhino.jar -> rhino-1.7.jar

-rw-r--r--  1 root root   414906 Aug 19  2010 sinjdoc.jar

-rw-r--r--  1 root root  1246482 Sep 30  2014 xerces-j2-2.7.1.jar

lrwxrwxrwx  1 root root       19 May  5 20:36 xerces-j2.jar -> xerces-j2-2.7.1.jar

-rw-r--r--  1 root root   230522 Aug 19  2010 xml-commons-apis-1.3.04.jar

-rw-r--r--  1 root root    90958 Aug 19  2010 xml-commons-apis-ext-1.3.04.jar

lrwxrwxrwx  1 root root       31 May  5 20:36 xml-commons-apis-ext.jar -> xml-commons-apis-ext-1.3.04.jar

lrwxrwxrwx  1 root root       27 May  5 20:36 xml-commons-apis.jar -> xml-commons-apis-1.3.04.jar

lrwxrwxrwx  1 root root       20 May  5 20:36 xml-commons-jaxp-1.3-apis.jar -> xml-commons-apis.jar

-rw-r--r--  1 root root    56968 Aug 21  2010 xml-commons-resolver-1.1.jar

lrwxrwxrwx  1 root root       28 May  5 20:36 xml-commons-resolver.jar -> xml-commons-resolver-1.1.jar

[root@bigdatamaster java]# 
[root@bigdatamaster java]# mv mysql-connector-java-5.1.21.jar mysql-connector-java.jar

mv: overwrite `mysql-connector-java.jar'? y

[root@bigdatamaster java]#

　　

　　（4）因为，我暂时用的是jdk1.7。 即，在$OOZIE_HOME/libext下的mysql-connector-java-6.0.3.jar  替换成  mysql-connector-java-5.1.21.jar 。

（5）放一份到$OOZIE_HOME/oozie-server/lib下 （是 mysql-connector-java-5.1.21.jar）（这里放到bigdatamaster节点）

[hadoop@bigdatamaster lib]$ pwd

/home/hadoop/app/oozie-4.1.-cdh5.5.4/oozie-server/lib

[hadoop@bigdatamaster lib]$ ls

annotations-api.jar  catalina-ha.jar  catalina-tribes.jar  el-api.jar     jasper.jar   servlet-api.jar    tomcat-dbcp.jar     tomcat-i18n-fr.jar

catalina-ant.jar     catalina.jar     ecj-4.3..jar        jasper-el.jar  jsp-api.jar  tomcat-coyote.jar  tomcat-i18n-es.jar  tomcat-i18n-ja.jar

[hadoop@bigdatamaster lib]$ rz

[hadoop@bigdatamaster lib]$ ls

annotations-api.jar  catalina-ha.jar  catalina-tribes.jar  el-api.jar     jasper.jar   mysql-connector-java-5.1..jar  tomcat-coyote.jar  tomcat-i18n-es.jar  tomcat-i18n-ja.jar

catalina-ant.jar     catalina.jar     ecj-4.3..jar        jasper-el.jar  jsp-api.jar  servlet-api.jar                  tomcat-dbcp.jar    tomcat-i18n-fr.jar

[hadoop@bigdatamaster lib]$ ll

total

-rwxr-xr-x  hadoop hadoop    May     annotations-api.jar

-rwxr-xr-x  hadoop hadoop    May     catalina-ant.jar

-rwxr-xr-x  hadoop hadoop   May     catalina-ha.jar

-rwxr-xr-x  hadoop hadoop  May     catalina.jar

-rwxr-xr-x  hadoop hadoop   May     catalina-tribes.jar

-rwxr-xr-x  hadoop hadoop  May     ecj-4.3..jar

-rwxr-xr-x  hadoop hadoop    May     el-api.jar

-rwxr-xr-x  hadoop hadoop   May     jasper-el.jar

-rwxr-xr-x  hadoop hadoop   May     jasper.jar

-rwxr-xr-x  hadoop hadoop    May     jsp-api.jar

-rw-r--r--  hadoop hadoop   Nov     mysql-connector-java-5.1..jar

-rwxr-xr-x  hadoop hadoop   May     servlet-api.jar

-rwxr-xr-x  hadoop hadoop   May     tomcat-coyote.jar

-rwxr-xr-x  hadoop hadoop   May     tomcat-dbcp.jar

-rwxr-xr-x  hadoop hadoop    May     tomcat-i18n-es.jar

-rwxr-xr-x  hadoop hadoop    May     tomcat-i18n-fr.jar

-rwxr-xr-x  hadoop hadoop    May     tomcat-i18n-ja.jar

[hadoop@bigdatamaster lib]$ chmod  mysql-connector-java-5.1..jar

[hadoop@bigdatamaster lib]$ ll

total

-rwxr-xr-x  hadoop hadoop    May     annotations-api.jar

-rwxr-xr-x  hadoop hadoop    May     catalina-ant.jar

-rwxr-xr-x  hadoop hadoop   May     catalina-ha.jar

-rwxr-xr-x  hadoop hadoop  May     catalina.jar

-rwxr-xr-x  hadoop hadoop   May     catalina-tribes.jar

-rwxr-xr-x  hadoop hadoop  May     ecj-4.3..jar

-rwxr-xr-x  hadoop hadoop    May     el-api.jar

-rwxr-xr-x  hadoop hadoop   May     jasper-el.jar

-rwxr-xr-x  hadoop hadoop   May     jasper.jar

-rwxr-xr-x  hadoop hadoop    May     jsp-api.jar

-rwxr-xr-x  hadoop hadoop   Nov     mysql-connector-java-5.1..jar

-rwxr-xr-x  hadoop hadoop   May     servlet-api.jar

-rwxr-xr-x  hadoop hadoop   May     tomcat-coyote.jar

-rwxr-xr-x  hadoop hadoop   May     tomcat-dbcp.jar

-rwxr-xr-x  hadoop hadoop    May     tomcat-i18n-es.jar

-rwxr-xr-x  hadoop hadoop    May     tomcat-i18n-fr.jar

-rwxr-xr-x  hadoop hadoop    May     tomcat-i18n-ja.jar

[hadoop@bigdatamaster lib]$

　　

　　然后，再，

[hadoop@bigdatamaster oozie-4.1.-cdh5.5.4]$ bin/oozie-start.sh

[hadoop@bigdatamaster oozie-4.1.-cdh5.5.4]$ jps

 Bootstrap

 NameNode

 SecondaryNameNode

 Jps

 QuorumPeerMain

 ResourceManager

[hadoop@bigdatamaster oozie-4.1.-cdh5.5.4]$

然后呢，大家也许还会出现如下问题：

Oozie时bin/oozied.sh start或bin/oozied.sh run出现Bootstrap进程无法启动，http://bigdatamaster:11000/oozie界面也无法打开？E0103: Could not load service classes,

java.lang.ClassNotFoundException: Class org.apache.oozie.ser

Oozie时bin/oozied.sh start或bin/oozied.sh run出现Bootstrap进程无法启动，http://bigdatamaster:11000/oozie界面也无法打开？

Oozie时出现Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure？

Oozie时出现Exception in thread "main" java.lang.UnsupportedClassVersionError: com/mysql/jdbc/Driver : Unsupported major.minor version 52.0？

CDH版本的oozie安装执行bin/oozie-setup.sh prepare-war，没生成oozie.war?

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