hive1.2.1问题集锦

1.启动hive报错:

　　

Logging initialized using configuration in jar:file:/usr/local/hive-1.2.1/lib/hive-common-1.2.1.jar!/hive-log4j.properties
[ERROR] Terminal initialization failed; falling back to unsupported
java.lang.IncompatibleClassChangeError: Found class jline.Terminal, but interface was expected
        at jline.TerminalFactory.create(TerminalFactory.java:101)
        at jline.TerminalFactory.get(TerminalFactory.java:158)
        at jline.console.ConsoleReader.<init>(ConsoleReader.java:229)
        at jline.console.ConsoleReader.<init>(ConsoleReader.java:221)
        at jline.console.ConsoleReader.<init>(ConsoleReader.java:209)
        at org.apache.hadoop.hive.cli.CliDriver.setupConsoleReader(CliDriver.java:787)
        at org.apache.hadoop.hive.cli.CliDriver.executeDriver(CliDriver.java:721)
        at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:681)
        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:601)
        at org.apache.hadoop.util.RunJar.run(RunJar.java:221)
        at org.apache.hadoop.util.RunJar.main(RunJar.java:136)

Exception in thread "main" java.lang.IncompatibleClassChangeError: Found class jline.Terminal, but interface was expected
        at jline.console.ConsoleReader.<init>(ConsoleReader.java:230)
        at jline.console.ConsoleReader.<init>(ConsoleReader.java:221)
        at jline.console.ConsoleReader.<init>(ConsoleReader.java:209)
        at org.apache.hadoop.hive.cli.CliDriver.setupConsoleReader(CliDriver.java:787)
        at org.apache.hadoop.hive.cli.CliDriver.executeDriver(CliDriver.java:721)
        at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:681)
        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:601)
        at org.apache.hadoop.util.RunJar.run(RunJar.java:221)
        at org.apache.hadoop.util.RunJar.main(RunJar.java:136)

解决办法:

　　在conf/hive-env.sh中 添加

export HADOOP_USER_CLASSPATH_FIRST=true

即可解决.

2. mysql 创建表异常

在安装Hive时，经常报异常。

后来采用输出日志的方式来开启hive：hive -hiveconf hive.root.logger=DEBUG,console

这样在执行命令时，就会输出日志，出现异常可以很快定位。

--------------------------------------------------------------------------------

ERROR DataNucleus.Datastore: Error thrown executing CREATE TABLE `SD_PARAMS`
(
    `SD_ID` BIGINT NOT NULL,
    `PARAM_KEY` VARCHAR(256) BINARY NOT NULL,
    `PARAM_VALUE` VARCHAR(4000) BINARY NULL,
    CONSTRAINT `SD_PARAMS_PK` PRIMARY KEY (`SD_ID`,`PARAM_KEY`)
) ENGINE=INNODB : Specified key was too long; max key length is 767 bytes
com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Specified key was too long; max key length is 767 bytes

这是字符集的问题，在数据库上执行 alter database hive character set latin1;来修改字符集，问题解决。