Carsten Steckel created HIVE-20872:
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Summary: Creating information_schema and sys schema via schematool
fails with parser error
Key: HIVE-20872
URL: https://issues.apache.org/jira/browse/HIVE-20872
Project: Hive
Issue Type: Bug
Components: Hive, HiveServer2, Metastore, SQL
Affects Versions: 3.1.1, 3.1.0
Environment: Apache Hive (version 3.1.1)
Hive JDBC (version 3.1.1)
metastore on derby embedded, derby server, postgres server
Apache Hadoop (version 2.9.1)
Reporter: Carsten Steckel
it took quite some time to figure out how to install the "information_schema"
and "sys" schemas (thanks to https://issues.apache.org/jira/browse/HIVE-16941)
into a hive 3.1.0/3.1.1 on hdfs/hadoop 2.9.1 and I am still unsure if it is the
proper way of doing it.
when I execute:
{noformat}
hive@hive-server ~> schematool -metaDbType derby -dbType hive -initSchema -url
jdbc:hive2://localhost:10000/default -driver org.apache.hive.jdbc.HiveDriver"
{noformat}
I receive a (from --verbose log):
{noformat}
[...]
Error: Error while compiling statement: FAILED: SemanticException
org.apache.hadoop.hive.ql.metadata.InvalidTableException: Table not found
_dummy_table (state=42000,code=40000)
org.apache.hadoop.hive.metastore.HiveMetaException: Schema initialization
FAILED! Metastore state would be inconsistent !!
[...]
{noformat}
It seems to the last statement during setup of the sys-schema causes the issue.
When executing it manually:
{noformat}
0: jdbc:hive2://localhost:10000> CREATE OR REPLACE VIEW `VERSION` AS SELECT 1
AS `VER_ID`, '3.1.0' AS `SCHEMA_VERSION`, 'Hive release version 3.1.0' AS
`VERSION_COMMENT`;
Error: Error while compiling statement: FAILED: SemanticException
org.apache.hadoop.hive.ql.metadata.InvalidTableException: Table not found
_dummy_table (state=42000,code=40000)
{noformat}
I have tried to switch the metastore_db from derby embedded to derby server to
postgresql and made sure the changed metadatabases each worked, but setting up
the information_schema and sys schemas always delivers the same error.
Executing only the select part without the create view works:
{noformat}
0: jdbc:hive2://localhost:10000> SELECT 1 AS `VER_ID`, '3.1.0' AS
`SCHEMA_VERSION`, 'Hive release version 3.1.0' AS `VERSION_COMMENT`;
+---------+-----------------+-----------------------------+
| ver_id | schema_version | version_comment |
+---------+-----------------+-----------------------------+
| 1 | 3.1.0 | Hive release version 3.1.0 |
+---------+-----------------+-----------------------------+
1 row selected (0.595 seconds)
{noformat}
It seems to be related to: HIVE-19444
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