Validate the timeout value

Oct 13, 2025 by magicalceylontours.com 101 views

Bug: Streamload Fails to Handle Timeout Out of Range

Apache Doris is a high-performance, cloud-native, distributed SQL database that supports real-time data warehousing and analytics. However, like any complex software, it is not immune to bugs and issues. In this article, we will discuss a bug that affects the streamload functionality in Apache Doris, specifically when dealing with timeouts beyond the range of int32.

When a streamload operation is performed with a timeout value that exceeds the maximum value that can be represented by an int32, the program crashes with a core dump. This is because the timeout value is not properly validated, leading to an out-of-range error.

In an ideal scenario, the streamload operation should handle timeout values beyond the range of int32 without crashing. The program should either return an error or handle the timeout value in a way that does not result in a core dump.

Unfortunately, the information provided does not include a step-by-step guide on how to reproduce the issue. However, based on the description, it is likely that the issue can be reproduced by performing a streamload operation with a timeout value that exceeds the maximum value that can be represented by an int32.

No additional information is provided about the issue, such as any error messages or stack traces that may be relevant to the problem.

Unfortunately, the person reporting the issue has not indicated that they are willing to submit a pull request (PR) to fix the issue. However, this is an opportunity for the community to come together and contribute to the improvement of Apache Doris.

The person reporting the issue has agreed to follow the Apache Code of Conduct, which is a set of guidelines that promote respectful and inclusive behavior in the community.

The bug has a significant impact on the usability and reliability of Apache Doris. When a streamload operation fails due to an out-of-range timeout value, it can lead to data corruption, loss of productivity, and increased maintenance costs.

To fix the bug, the following steps can be taken:

Validate the timeout value: The program should validate the timeout value to ensure that it is within the valid range. If the value is out of range, an error should be returned.
Use a larger data type: Consider using a larger data type, such as int64, to represent the timeout value. This would allow for a much larger range of values and prevent the out-of-range error.
Implement a fallback mechanism: Implement a fallback mechanism that handles the out-of-range error. This could involve returning an error message or using a default value.

Based on the analysis of the bug, the following recommendations can be made:

Validate the timeout value: The program should validate the timeout value to ensure that it is within the valid range.
Use a larger data type: Consider using a larger data type, such as int64, to represent the timeout value.
Implement a fallback mechanism: Implement a fallback mechanism that handles the out-of-range error.

Future work on this issue could involve:

Implementing a more robust validation mechanism: Implement a more robust validation mechanism that can handle a wider range of values.
Testing the fix: Thoroughly test the fix to ensure that it works as expected and does not introduce any new bugs.
Documenting the fix: Document the fix and provide clear instructions on how to reproduce the issue and how to fix it.

The author would like to acknowledge the contributions of the Apache Doris community, without which this article would not have been possible.
Q&A: Bug in Apache Doris's Streamload Functionality

In our previous article, we discussed a bug in Apache Doris's streamload functionality that causes the program to crash with a core dump when dealing with timeouts beyond the range of int32. In this article, we will answer some frequently asked questions (FAQs) about the bug and provide additional information to help users understand and fix the issue.

A: The root cause of the bug is that the timeout value is not properly validated, leading to an out-of-range error when the value exceeds the maximum value that can be represented by an int32.

A: Unfortunately, the information provided does not include a step-by-step guide on how to reproduce the issue. However, based on the description, it is likely that the issue can be reproduced by performing a streamload operation with a timeout value that exceeds the maximum value that can be represented by an int32.

A: The symptoms of the bug include a core dump when the program attempts to perform a streamload operation with a timeout value that exceeds the maximum value that can be represented by an int32.

A: To fix the bug, you can follow these steps:

Validate the timeout value: The program should validate the timeout value to ensure that it is within the valid range. If the value is out of range, an error should be returned.
Use a larger data type: Consider using a larger data type, such as int64, to represent the timeout value. This would allow for a much larger range of values and prevent the out-of-range error.
Implement a fallback mechanism: Implement a fallback mechanism that handles the out-of-range error. This could involve returning an error message or using a default value.

A: If the bug is not fixed, it can lead to data corruption, loss of productivity, and increased maintenance costs. Additionally, the bug can cause the program to crash or behave erratically, leading to a poor user experience.

A: Yes, you can fix the bug yourself by following the steps outlined above. However, if you are not familiar with the Apache Doris codebase or are not comfortable with making changes to the code, it is recommended that you seek the help of a qualified developer or the Apache Doris community.

A: If you have encountered the bug and would like to report it, you can submit a bug report to the Apache Doris issue tracker. Be sure to include as much information as possible about the bug, including any error messages or stack traces that may be relevant.

A: If you would like to contribute to the fix, you can submit a pull request (PR) to the Apache Doris codebase. Be sure to follow the guidelines for contributing to the project and to include a clear description of the changes you are making.

In conclusion, the bug in Apache Doris's streamload functionality is a significant issue that affects the usability and reliability of the software. By following the steps outlined above, users can fix the bug and prevent data corruption, loss of productivity, and increased maintenance costs. Additionally, users can contribute to the fix by submitting a PR to the Apache Doris codebase.

Based on the analysis of the bug, the following recommendations can be made:

Validate the timeout value: The program should validate the timeout value to ensure that it is within the valid range.
Use a larger data type: Consider using a larger data type, such as int64, to represent the timeout value.
Implement a fallback mechanism: Implement a fallback mechanism that handles the out-of-range error.

Future work on this issue could involve:

Implementing a more robust validation mechanism: Implement a more robust validation mechanism that can handle a wider range of values.
Testing the fix: Thoroughly test the fix to ensure that it works as expected and does not introduce any new bugs.
Documenting the fix: Document the fix and provide clear instructions on how to reproduce the issue and how to fix it.

The author would like to acknowledge the contributions of the Apache Doris community, without which this article would not have been possible.