In RedHat test server I installed hadoop 2.7 and I ran Hive ,Pig & Spark with out issues .But when tried to access metastore of Hive from Spark I got errors So I thought of putting hive-site.xml(After extracting 'apache-hive-1.2.1-bin.tar.gz' file I just add $HIVE_HOME to bashrc as per tutorial and everything was working other than this integration with Spark) In apache site I found that I need to put hive-site.xml as metastore configuration I created the file as below
<configuration>
<property>
<name>javax.jdo.option.ConnectionURL</name>
<value>jdbc:derby://localhost:1527/metastore_db;create=true</value>
<description>JDBC connect string for a JDBC metastore</description>
</property>
</configuration>
I put IP as localhost since it is single node machine .After that I am not able to connect to even Hive .It is throwing error
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)
.... Caused by: javax.jdo.JDOFatalDataStoreException: Unable to open a test connection to the given database. JDBC url = jdbc:derby://localhost:1527/metastore_db;create=true, username = APP. Terminating connection pool (set lazyInit to true if you expect to start your database after your app). Original Exception: ------ java.sql.SQLException: No suitable driver found for jdbc:derby://localhost:1527/metastore_db;create=true
There are lot many error log pointing to the same thing . If I remove hive-site.xml from the conf folder hive is working without issues .Can anyone point me to the right path for default metastore configuration Thanks Anoop R
Derby is used as an embedded database. try using
jdbc:derby:metastore_db;create=true
as jdbc-url. see also
To use the metastore fully functional (and by that to be able to access it from different services), try setting up using mysql as described in the document above.