Carter Shanklin created HIVE-16944:
--------------------------------------
Summary: schematool -dbType hive should give some more
feedback/assistance
Key: HIVE-16944
URL: https://issues.apache.org/jira/browse/HIVE-16944
Project: Hive
Issue Type: Bug
Reporter: Carter Shanklin
Given the other ways schematool is used, the most obvious guess I would have
for initializing the Hive schema is:
{code}
schematool -metaDbType mysql -dbType hive -initSchema
{code}
Unfortunately that fails with this NPE:
{code}
Exception in thread "main" java.lang.NullPointerException
at
org.apache.hadoop.hive.metastore.tools.HiveSchemaHelper.getDbCommandParser(HiveSchemaHelper.java:570)
at
org.apache.hadoop.hive.metastore.tools.HiveSchemaHelper.getDbCommandParser(HiveSchemaHelper.java:564)
at
org.apache.hadoop.hive.metastore.tools.HiveSchemaHelper.getDbCommandParser(HiveSchemaHelper.java:560)
at
org.apache.hadoop.hive.metastore.tools.HiveSchemaHelper$HiveCommandParser.<init>(HiveSchemaHelper.java:373)
at
org.apache.hadoop.hive.metastore.tools.HiveSchemaHelper.getDbCommandParser(HiveSchemaHelper.java:573)
at
org.apache.hive.beeline.HiveSchemaTool.getDbCommandParser(HiveSchemaTool.java:165)
at
org.apache.hive.beeline.HiveSchemaTool.<init>(HiveSchemaTool.java:101)
at org.apache.hive.beeline.HiveSchemaTool.<init>(HiveSchemaTool.java:90)
at org.apache.hive.beeline.HiveSchemaTool.main(HiveSchemaTool.java:1166)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.hadoop.util.RunJar.run(RunJar.java:233)
at org.apache.hadoop.util.RunJar.main(RunJar.java:148)
{code}
Two additional arguments are needed:
-url jdbc:hive2://localhost:10000/default -driver
org.apache.hive.jdbc.HiveDriver
If the user does not supply these for dbType hive, schematool should detect and
error out appropriately, plus give an example of what it's looking for.
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