Investigation and Resolution

Oct 13, 2025 by pinkandtrash.com 100 views

Introduction

CockroachDB is a distributed relational database that provides a scalable and highly available solution for storing and managing data. Roachtest is a comprehensive testing framework for CockroachDB that ensures the database's functionality and performance meet the expected standards. However, recent test runs have revealed a failure in the multitenant/TPCH/separate_process test, which is a critical component of the Roachtest suite. In this article, we will delve into the details of the failed test, explore the possible causes, and provide guidance on how to investigate and resolve the issue.

Test Failure Details

The multitenant/TPCH/separate_process test failed on the master branch with commit hash 2362ac69262c53be08f010fcde76371592d311ef. The test timed out after 3 hours and 0 minutes, and the test artifacts and logs are available in the /artifacts/multitenant/tpch/separate_process/run_1 directory.

Test Parameters

The test was run with the following parameters:

arch: amd64
cloud: gce
coverageBuild: false
cpu: 4
encrypted: false
metamorphicLeases: expiration
runtimeAssertionsBuild: false
ssd: 0

Investigation and Resolution

To investigate and resolve the issue, follow these steps:

1. Review Test Logs and Artifacts

The test logs and artifacts are available in the /artifacts/multitenant/tpch/separate_process/run_1 directory. Review the logs to identify any errors or warnings that may indicate the cause of the test failure.

2. Check Test Configuration

Verify that the test configuration is correct and matches the expected values. Check the test parameters and ensure that they are set to the correct values.

3. Run Test with Debugging Enabled

Run the test with debugging enabled to gather more information about the test failure. This will provide additional logs and output that can help identify the cause of the issue.

4. Analyze Test Results

Analyze the test results to identify any patterns or trends that may indicate the cause of the test failure. Use tools such as Grafana to visualize the test results and identify any issues.

5. Consult Documentation and Resources

Consult the Roachtest documentation and resources to identify any known issues or workarounds that may be related to the test failure.

6. Engage with Community and Support

Engage with the CockroachDB community and support team to gather more information and guidance on how to resolve the issue.

Additional Resources

For more information on how to investigate and resolve the issue, refer to the following resources:

Jira Issue

The Jira issue related to this test failure is CRDB-48411.

Conclusion

Introduction

In our previous article, we discussed the multitenant/TPCH/separate_process test failure in Roachtest. In this article, we will provide a Q&A section to address common questions and concerns related to the issue.

Q: What is the multitenant/TPCH/separate_process test?

A: The multitenant/TPCH/separate_process test is a critical component of the Roachtest suite that ensures the CockroachDB database meets the expected standards of functionality and performance. This test evaluates the database's ability to handle multiple tenants and perform complex queries.

Q: What is the cause of the test failure?

A: The cause of the test failure is not yet known. However, it is believed to be related to a recent change in the CockroachDB codebase. Further investigation is required to determine the root cause of the issue.

Q: How can I reproduce the test failure?

A: To reproduce the test failure, follow these steps:

Clone the CockroachDB repository from GitHub.
Run the Roachtest suite using the bazel command.
Select the multitenant/TPCH/separate_process test.
Run the test using the bazel command.

Q: What are the test parameters?

A: The test parameters are:

arch: amd64
cloud: gce
coverageBuild: false
cpu: 4
encrypted: false
metamorphicLeases: expiration
runtimeAssertionsBuild: false
ssd: 0

Q: How can I debug the test failure?

A: To debug the test failure, follow these steps:

Review the test logs and artifacts.
Check the test configuration.
Run the test with debugging enabled.
Analyze the test results.
Consult the Roachtest documentation and resources.
Engage with the CockroachDB community and support team.

Q: What are the next steps?

A: The next steps are:

Investigate the root cause of the test failure.
Develop a fix for the issue.
Test the fix to ensure it resolves the issue.
Deploy the fix to the CockroachDB codebase.

Q: How can I get help?

A: If you need help with the test failure or have questions about the issue, please engage with the CockroachDB community and support team. You can also consult the Roachtest documentation and resources.

Conclusion

The multitenant/TPCH/separate_process test failure is a critical issue that requires immediate attention. By following the steps outlined in this article, you can investigate and resolve the issue. Remember to consult the Roachtest documentation and resources, engage with the community and support team, and use tools such as Grafana to visualize the test results. With persistence and dedication, you can resolve the issue and ensure the CockroachDB database meets the expected standards of functionality and performance.

Additional Resources

For more information on how to investigate and resolve the issue, refer to the following resources:

Jira Issue

The Jira issue related to this test failure is CRDB-48411.