序言：我是hadoop / hive的新手。已经安装了独立的 hadoop，现在正试图让 hive 工作。我不断收到有关初始化元存储的错误，似乎无法弄清楚如何解决。（hadoop 2.7.2 和 hive 2.0）
HADOOP_HOME 和 HIVE_HOME 已设置
ubuntu15-laptop: ~ $>echo $HADOOP_HOME
/usr/hadoop/hadoop-2.7.2
ubuntu15-laptop: ~ $>echo $HIVE_HOME
/usr/hive
hdfs 正在工作
ubuntu15-laptop: ~ $>hadoop fs -ls /
Found 2 items
drwxrwxr-x - testuser supergroup 0 2016-04-13 21:37 /tmp
drwxrwxr-x - testuser supergroup 0 2016-04-13 21:38 /user
ubuntu15-laptop: ~ $>hadoop fs -ls /user
Found 1 items
drwxrwxr-x - testuser supergroup 0 2016-04-13 21:38 /user/hive
ubuntu15-laptop: ~ $>hadoop fs -ls /user/hive
Found 1 items
drwxrwxr-x - testuser supergroup 0 2016-04-13 21:38 /user/hive/warehouse
ubuntu15-laptop: ~ $>groups
testuser adm cdrom sudo dip plugdev lpadmin sambashare
蜂巢不工作。说我需要初始化我的元存储
ubuntu15-laptop: ~ $>hive
Logging initialized using configuration in
jar:file:/usr/hive/lib/hive-common-2.0.0.jar!/hive-log4j2.properties
Exception in thread "main" java.lang.RuntimeException: 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)
所以我尝试使用 postgres 对其进行初始化 - 但 schematool 尝试使用 derby
ubuntu15-laptop: ~ $>schematool -initSchema -dbType postgres
Metastore connection URL: jdbc:derby:;databaseName=metastore_db;create=true
Metastore Connection Driver : org.apache.derby.jdbc.EmbeddedDriver
Metastore connection User: APP
Starting metastore schema initialization to 2.0.0
Initialization script hive-schema-2.0.0.postgres.sql
Error: Syntax error: Encountered "statement_timeout" at line 1, column 5.
(state=42X01,code=30000)
org.apache.hadoop.hive.metastore.HiveMetaException: Schema initialization
FAILED! Metastore state would be inconsistent !!
*** schemaTool failed ***
所以我将 hive-site.xml 更改为使用 postgres 驱动程序等，但是因为我没有安装驱动程序，所以它失败了
ubuntu15-laptop: ~ $>cp /usr/hive/conf/hive-site.xml.templ /usr/hive/conf/hive-site.xml
ubuntu15-laptop: ~ $>schematool -initSchema -dbType postgres
Metastore connection URL: jdbc:postgresql://localhost:5432/hivedb
Metastore Connection Driver : org.postgresql.Driver
Metastore connection User: 123456
org.apache.hadoop.hive.metastore.HiveMetaException: Failed to load driver
*** schemaTool failed ***
所以然后我尝试使用 derby 首先将 hive-site.xml 再次移开，所以默认是 derby
ubuntu15-laptop: ~ $>mv /usr/hive/conf/hive-site.xml /usr/hive/conf/hive-site.xml.templ
然后我尝试用 derby 再次初始化，但它似乎已经根据错误“错误：FUNCTION 'NUCLEUS_ASCII'已经存在”进行了初始化
ubuntu15-laptop: ~ $>schematool -initSchema -dbType derby
Metastore connection URL: jdbc:derby:;databaseName=metastore_db;create=true
Metastore Connection Driver : org.apache.derby.jdbc.EmbeddedDriver
Metastore connection User: APP
Starting metastore schema initialization to 2.0.0
Initialization script hive-schema-2.0.0.derby.sql
Error: FUNCTION 'NUCLEUS_ASCII' already exists. (state=X0Y68,code=30000)
org.apache.hadoop.hive.metastore.HiveMetaException: Schema initialization
FAILED! Metastore state would be inconsistent !!
*** schemaTool failed ***
我已经在这两天了。任何帮助将不胜感激。