Exception in thread "main" java.lang.RuntimeException: java.lang.IllegalArgumentException: java.net.

异常详情如下：
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
        at org.apache.hadoop.hive.ql.session.SessionState.start(SessionState.java:444)
        at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:672)
        at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:616)
        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.main(RunJar.java:160)
Caused by: java.lang.IllegalArgumentException: java.net.URISyntaxException: Relative path in absolute URI: ${system:java.io.tmpdir%7D/$%7Bsystem:user.name%7D
        at org.apache.hadoop.fs.Path.initialize(Path.java:148)
        at org.apache.hadoop.fs.Path.(Path.java:126)
        at org.apache.hadoop.hive.ql.session.SessionState.createSessionDirs(SessionState.java:487)
        at org.apache.hadoop.hive.ql.session.SessionState.start(SessionState.java:430)
        ... 7 more
Caused by: java.net.URISyntaxException: Relative path in absolute URI: ${system:java.io.tmpdir%7D/$%7Bsystem:user.name%7D
        at java.net.URI.checkPath(URI.java:1804)
        at java.net.URI.(URI.java:752)
        at org.apache.hadoop.fs.Path.initialize(Path.java:145)
        ... 10 more

解决方案如下：

在hive 配置文件hive-site.xml 中找到${system:java.io.tmpdir}，并把此都替换成具体目录，如/home/hive/apache-hive-2.0.0-bin/iotmp

然后，启动hive即可