Why does this error occur in abinitio while loading to Teradata? "Input port closed while active (un

[digitallojizz]

Ab Initio from input file to Teradata table via PT_api_utility using Output Table component. It has been running fine since long but today it threw error:

Error from Component 'TARGET_TABLE__table_.tload', Partition 0 [B1]

Internal error: Input port "in" closed while active (unread data remains). Flows into this port: Flow_2 (flow from Inter Load File to TARGET_TABLE).000

After analyzing we found around 80% of the records were inserted into table, but rest 20% were not loaded, rejected to reject file and gave above error. Every time we run this again manually via another test graph from start or in same graph from checkpoint, we still get same error at the same number of records:

Internal error: Input port "in" closed while active (unread data remains).

[michaelkenward]

What Netgear devices are we talking about here?

What are you trying to do?

[techveer]

The error message you encountered in your Ab Initio graph suggests an issue with the input data flow into the Target Table component. Specifically, it states "Internal error: Input port 'in' closed while active (unread data remains)." This error indicates that the input port of the Target Table component was closed prematurely while there were still unread data records.

Here are a few possible causes and steps you can take to troubleshoot and resolve this issue:

1. Verify Input data Check the integrity and quality of the input data that is being fed into the Target Table component. Ensure that the data is in the expected format and does not contain any inconsistencies or errors that could cause the component to close the input port prematurely.

2. Check Data Volume: If the graph has been running fine for a long time and only recently started encountering this error, it's worth examining if there has been a significant increase in data volume or changes in data characteristics. The error could be related to the increased data load, causing the component to close the input port before all the data is processed.

3. Review Graph Design: Analyze the graph design and flow to identify any potential issues. Check if there are any dependencies or conditions that could lead to premature closure of the input port. Ensure that the flow of data within the graph is consistent and aligned with the intended logic.

4. Resource Constraints: Consider the system resources (memory, CPU, disk space) available during the execution of the graph. If there are resource constraints, it may cause the graph to close the input port prematurely. Monitor the system resources and optimize the graph execution environment if necessary.

5. Error Handling and Logging: Review the error handling and logging mechanisms in your graph. Ensure that error messages and exceptions are properly captured and logged, which can provide more detailed information about the root cause of the issue.

6. Contact Ab Initio Support: If the issue persists and you are unable to resolve it internally, reach out to Ab Initio support for assistance. They can analyze the error logs and provide specific guidance based on the details of your graph and environment.

Remember to back up your data and test any changes or fixes in a controlled environment before applying them to your production environment.