stackabletech / stackabletech/hive-operator

Missing SerDeStorageSchemaReader class when creating Avro tables with schema file

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Dominant language
Rust
Stars
29
Forks
2
Avg merge
1d 19h
Merged PRs (30d)
12

Description

When creating a Hive external table with the Avro schema URL defined the result is a table that cannot be queried or droped:

 create table hive.test.avro_test (
    LOAD_DATE varchar,
    ID varchar,
    EMAIL varchar,
    NAME varchar
)
with (
    format = 'AVRO',
    external_location = 'hdfs://hdfs/test/table1',
    avro_schema_url = 'hdfs://hdfs/schema/table1.avsc'
);

All operations on the table produce the following error:

[SQL Error [16777216]: Query failed (#20250804_105604_00015_upgzh): org.apache.hadoop.hive.metastore.SerDeStorageSchemaReader class not found](url)

Once the table is created it can no longer be managed from Trino.

This was originally opened as a Trino issue (https://github.com/stackabletech/trino-operator/issues/783) but the issue lies with hive metastore missing the required Java classes from Hive and Hadoop.

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reproducing the SQL example against the Hive Metastore deployment and confirm the SerDeStorageSchemaReader class-not-found error. Inspect how the deployment supplies Hive and Hadoop classes; done means an Avro table created with avro_schema_url can be queried and dropped from Trino without this error.

Written by the indexing model from the issue text.

Assessment

Tech stack
kubernetes, rust
Domain
databases, infrastructure
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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