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From "Mithun Radhakrishnan (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (HIVE-7891) Table-creation fails through HCatClient for Oracle-based metastore.
Date Wed, 27 Aug 2014 08:44:58 GMT

     [ https://issues.apache.org/jira/browse/HIVE-7891?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Mithun Radhakrishnan reassigned HIVE-7891:
------------------------------------------

    Assignee: Mithun Radhakrishnan

> Table-creation fails through HCatClient for Oracle-based metastore.
> -------------------------------------------------------------------
>
>                 Key: HIVE-7891
>                 URL: https://issues.apache.org/jira/browse/HIVE-7891
>             Project: Hive
>          Issue Type: Bug
>          Components: HCatalog, Metastore
>    Affects Versions: 0.14.0
>            Reporter: Mithun Radhakrishnan
>            Assignee: Mithun Radhakrishnan
>
> When tables are created using {{HCatClient.createTable()}}, if the HCatTable's creation-comment
is an empty string, the table creation fails spectacularly, with this guttural utterance:

> {noformat}
> Exception in thread "main" org.apache.hive.hcatalog.common.HCatException : 9001 : Exception
occurred while processing HCat request : MetaException while creating table.. Cause : MetaException(message:java.lang.NullPointerException:
Null values not allowed in persistent maps.)
>         at org.apache.hive.hcatalog.api.HCatClientHMSImpl.createTable(HCatClientHMSImpl.java:185)
>         at net.myth.HiveClient.main(HiveClient.java:67)
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
>         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>         at java.lang.reflect.Method.invoke(Method.java:601)
>         at org.apache.hadoop.util.RunJar.main(RunJar.java:208)
> Caused by: MetaException(message:java.lang.NullPointerException: Null values not allowed
in persistent maps.)
>         at org.apache.hadoop.hive.metastore.api.ThriftHiveMetastore$create_table_with_environment_context_result$create_table_with_environment_context_resultStandardScheme.read(ThriftHiveMetastore.java:22138)
>         at org.apache.hadoop.hive.metastore.api.ThriftHiveMetastore$create_table_with_environment_context_result$create_table_with_environment_context_resultStandardScheme.read(ThriftHiveMetastore.java:22106)
>         at org.apache.hadoop.hive.metastore.api.ThriftHiveMetastore$create_table_with_environment_context_result.read(ThriftHiveMetastore.java:22032)
>         at org.apache.thrift.TServiceClient.receiveBase(TServiceClient.java:78)
>         at org.apache.hadoop.hive.metastore.api.ThriftHiveMetastore$Client.recv_create_table_with_environment_context(ThriftHiveMetastore.java:797)
>         at org.apache.hadoop.hive.metastore.api.ThriftHiveMetastore$Client.create_table_with_environment_context(ThriftHiveMetastore.java:783)
>         at org.apache.hadoop.hive.metastore.HiveMetaStoreClient.createTable(HiveMetaStoreClient.java:487)
>         at org.apache.hadoop.hive.metastore.HiveMetaStoreClient.createTable(HiveMetaStoreClient.java:476)
>         at org.apache.hive.hcatalog.api.HCatClientHMSImpl.createTable(HCatClientHMSImpl.java:175)
> {noformat}
> This manifests with an Oracle backend, because an empty comment-string is stored in the
table-properties map as a null-string. I've a patch that fixes this.



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