本人，苦心多時，歷經磨難和心血，與大家共同攻克問題難關！
問題一:
FAILED: Execution Error, return code 1 from org.apache.hadoop.hive.ql.exec.DDLTask. java.lang.RuntimeException: Unable to instantiate org.apache.hadoop.hive.metastore.HiveMetaStoreClient
參考：http://blog.csdn.net/l1028386804/article/details/51566262
解決辦法：
進入所安裝的Hive的conf目錄，找到hive-site.xml，（若沒修改，則是hive-default.xml.template）。
<property>
<name>hive.metastore.schema.verification</name>
<value>true</value>
<description>
Enforce metastore schema version consistency.
True: Verify that version information stored in metastore matches with one from Hive jars. Also disable automatic
schema migration attempt. Users are required to manully migrate schema after Hive upgrade which ensures
proper metastore schema migration. (Default)
False: Warn if the version information stored in metastore doesn't match with one from in Hive jars.
</description>
</property>
改為
<property>
<name>hive.metastore.schema.verification</name>
<value>false</value>
<description>
Enforce metastore schema version consistency.
True: Verify that version information stored in metastore matches with one from Hive jars. Also disable automatic
schema migration attempt. Users are required to manully migrate schema after Hive upgrade which ensures
proper metastore schema migration. (Default)
False: Warn if the version information stored in metastore doesn't match with one from in Hive jars.
</description>
</property>
然后，再重啟hive，進入即可。
或者 在hive安裝目錄下的bin目錄下，./hive -hiveconf hive.root.logger=DEBUG,console
同時，最近還有人來問我。出現如下問題SeesionHiveMetaStoreClient
先按照我的問題一的思路去解決，若解決不了，看看你的hdfs-site.xml和core-site.xml是否正確。（因為有人問我，最后幫解決發現是這個問題）
見。如下博客
和
http://www.cnblogs.com/braveym/p/6685045.html
問題二：
Hive報錯為：There are 2 datanode(s) running and no node(s) are excluded in this operation.
詳細報錯為：
org.apache.hadoop.ipc.RemoteException(java.io.IOException): File /tmp/hive/zhou/ed69eb4e-855a-4b18-a498-345e8685533a/hive_2015-12-14_05-32-03_335_9179215496953152524-1/-mr-10004/f8d2e938-b439-495f-b886-801c98f660da/map.xml could only be replicated to 0 nodes instead of minReplication (=1). There are 2 datanode(s) running and no node(s) are excluded in this operation.
參考：http://jingyan.baidu.com/article/7082dc1c65a76be40a89bd09.html
解決方法：
出現此類報錯主要原因是datanode存在問題，要么硬盤容量不夠，要么datanode服務器down了。檢查datanode，重啟Hadoop即可解決。
問題三：
hive保持， Execution Error, return code 1 from org.apache.hadoop.hive.ql.exec.CopyTask
參考：http://blog.sina.com.cn/s/blog_75353ff40102v0d3.html
解決：
問題四：
Caused by: MetaException(message:Hive metastore database is not initialized. Please use schematool (e.g. ./schematool -initSchema -dbType ...) to create the schema. If needed, don't forget to include the option to auto-create the underlying database in your JDBC connection string (e.g. ?createDatabaseIfNotExist=true for mysql))
這是由於沒有初始化Hive元數據的數據庫，默認情況下，Hive的元數據保存在了內嵌的derby數據庫里。
執行如下命令方可
在hive安裝目錄下，執行 ./bin/schematool -initSchema -dbType derby
參考： http://fengshulin.iteye.com/blog/2320359
問題五：
Exception in thread "main"java.lang.RuntimeException: java.lang.IllegalArgumentException:java.net.URISyntaxException: Relative path in absolute URI:${system:java.io.tmpdir%7D/$%7Bsystem:user.name%7D
解決方案：
在hive 安裝目錄下，創建一個臨時的IO文件iotmp。比如hive的安裝目錄是/home/hadoop/app/hive
然后將路徑配置到hive-site.xml文件的以下參數中：
< property> < name>hive.querylog.location< /name> < value>/home/hadoop/app/hive/iotmp< /value> < description>Location of Hive run time structured log file< /description> < /property> < property> < name>hive.exec.local.scratchdir< /name> < value>/home/hadoop/app/hive/iotmp< /value> < description>Local scratch space for Hive jobs< /description> < /property> < property> < name>hive.downloaded.resources.dir< /name> < value>/home/hadoop/app/hive/iotmp< /value> < description>Temporary local directory for added resources in the remote file system.< /description> < /property>
問題六：
Caused by: java.lang.RuntimeException: Unable to instantiate org.apache.hadoop.hive.ql.metadata.SessionHiveMetaStoreClient
解決辦法：
[hadoop@HadoopSlave1 hive-1.2.1]$ hive --service metastore &
如果實在不行，就，再參考這篇。https://my.oschina.net/AlbertHa/blog/339022
再實在不行，見http://www.aboutyun.com/thread-11131-1-1.html
問題七:
[hadoop@HadoopSlave1 hive-1.2.1]$ bin/hive
Logging initialized using configuration in jar:file:/home/hadoop/app/hive-1.2.1/lib/hive-common-1.2.1.jar!/hive-log4j.properties
Exception in thread "main" java.lang.RuntimeException: java.lang.RuntimeException: Unable to instantiate org.apache.hadoop.hive.ql.metadata.SessionHiveMetaStoreClient
at org.apache.hadoop.hive.ql.session.SessionState.start(SessionState.java:522)
at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:677)
at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:621)
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:606)
at org.apache.hadoop.util.RunJar.run(RunJar.java:221)
at org.apache.hadoop.util.RunJar.main(RunJar.java:136)
Caused by: java.lang.RuntimeException: Unable to instantiate org.apache.hadoop.hive.ql.metadata.SessionHiveMetaStoreClient
at org.apache.hadoop.hive.metastore.MetaStoreUtils.newInstance(MetaStoreUtils.java:1523)
at org.apache.hadoop.hive.metastore.RetryingMetaStoreClient.<init>(RetryingMetaStoreClient.java:86)
at org.apache.hadoop.hive.metastore.RetryingMetaStoreClient.getProxy(RetryingMetaStoreClient.java:132)
at org.apache.hadoop.hive.metastore.RetryingMetaStoreClient.getProxy(RetryingMetaStoreClient.java:104)
at org.apache.hadoop.hive.ql.metadata.Hive.createMetaStoreClient(Hive.java:3005)
at org.apache.hadoop.hive.ql.metadata.Hive.getMSC(Hive.java:3024)
at org.apache.hadoop.hive.ql.session.SessionState.start(SessionState.java:503)
... 8 more
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at org.apache.hadoop.hive.metastore.MetaStoreUtils.newInstance(MetaStoreUtils.java:1521)
... 14 more
Caused by: MetaException(message:Got exception: java.io.IOException No FileSystem for scheme: hfds)
at org.apache.hadoop.hive.metastore.MetaStoreUtils.logAndThrowMetaException(MetaStoreUtils.java:1213)
at org.apache.hadoop.hive.metastore.Warehouse.getFs(Warehouse.java:106)
at org.apache.hadoop.hive.metastore.Warehouse.getDnsPath(Warehouse.java:140)
at org.apache.hadoop.hive.metastore.Warehouse.getDnsPath(Warehouse.java:146)
at org.apache.hadoop.hive.metastore.Warehouse.getWhRoot(Warehouse.java:159)
at org.apache.hadoop.hive.metastore.Warehouse.getDefaultDatabasePath(Warehouse.java:177)
at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.createDefaultDB_core(HiveMetaStore.java:600)
at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.createDefaultDB(HiveMetaStore.java:620)
at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.init(HiveMetaStore.java:461)
at org.apache.hadoop.hive.metastore.RetryingHMSHandler.<init>(RetryingHMSHandler.java:66)
at org.apache.hadoop.hive.metastore.RetryingHMSHandler.getProxy(RetryingHMSHandler.java:72)
at org.apache.hadoop.hive.metastore.HiveMetaStore.newRetryingHMSHandler(HiveMetaStore.java:5762)
at org.apache.hadoop.hive.metastore.HiveMetaStoreClient.<init>(HiveMetaStoreClient.java:199)
at org.apache.hadoop.hive.ql.metadata.SessionHiveMetaStoreClient.<init>(SessionHiveMetaStoreClient.java:74)
... 19 more
[hadoop@HadoopSlave1 hive-1.2.1]$
將hadoop中share/hadoop/yarn/lib路徑下jline包換成hive中匹配的jar包
同時，大家可以關注我的個人博客：
http://www.cnblogs.com/zlslch/ 和 http://www.cnblogs.com/lchzls/
詳情請見：http://www.cnblogs.com/zlslch/p/7473861.html
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