以下异常说明mysql已经启动。 应先关掉先前启动的mysql.再执行初始化schema操作。

$service mysql stop;

# $HIVE_HOME/bin/schematool -dbType mysql -initSchema
which: no hbase in (/usr/lib64/qt-3.3/bin:/usr/local/sbin:/bin:/usr/bin:/sbin:/usr/sbin:/usr/local/bin:/usr/X11R6/bin:/usr/local/src/jdk1.8.0_112/bin:/usr/local/src/hadoop-2.7.3/bin:/usr/local/src/apache-hive-2.1.1-bin/bin:/home/pl62716/spark-2.1.0-bin-hadoop2.6/bin:/home/pl62716/apache-maven-3.3.9/bin://home/pl62716/sbt-launcher-packaging-0.13.13/bin:/root/bin)
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/usr/local/src/apache-hive-2.1.1-bin/lib/hive-jdbc-2.1.1-standalone.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/usr/local/src/apache-hive-2.1.1-bin/lib/log4j-slf4j-impl-2.4.1.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/usr/local/src/hadoop-2.7.3/share/hadoop/common/lib/slf4j-log4j12-1.7.10.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
SLF4J: Actual binding is of type [org.apache.logging.slf4j.Log4jLoggerFactory]
Metastore connection URL: jdbc:mysql://sd-9c1f-2eac:3306/hive?createDatabaseIfNotExist=true
Metastore Connection Driver : com.mysql.jdbc.Driver
Metastore connection User: hive
Starting metastore schema initialization to 2.1.0
Initialization script hive-schema-2.1.0.mysql.sql
Error: Duplicate key name 'PCS_STATS_IDX' (state=42000,code=1061)
org.apache.hadoop.hive.metastore.HiveMetaException: Schema initialization FAILED! Metastore state would be inconsistent !!
Underlying cause: java.io.IOException : Schema script failed, errorcode 2
Use --verbose for detailed stacktrace.
*** schemaTool failed ***