Error
Error Code:
1343
SAP S/4HANA Error 1343: SQLScript Retry Exception
Description
This error indicates that an operation within an SAP HANA SQLScript procedure failed and triggered a retry mechanism, which also failed or was exhausted. It often points to transient issues like deadlocks, resource contention, or temporary network glitches during complex database operations, preventing the procedure from completing successfully.
Error Message
ERR_SQLSCRIPT_RETRY_EXCEPTION
Known Causes
4 known causesDatabase Resource Contention
The SAP HANA database experienced temporary deadlocks, heavy locking, or resource unavailability during a complex SQLScript operation, leading to repeated failures.
High System Workload
Excessive load on the SAP S/4HANA system or the underlying SAP HANA database can cause operations to time out or fail, exhausting the retry attempts.
Network Instability
Intermittent network connectivity issues or high latency between application servers and the SAP HANA database can interrupt procedure execution, triggering failed retries.
SQLScript Logic Flaws
Underlying issues within the SQLScript procedure's logic, such as inefficient queries or race conditions, can lead to operations consistently failing even with retries.
Solutions
3 solutions available1. Analyze and Optimize Slow-Running SQLScript Procedures medium
Identify and optimize SQLScript procedures that are causing the retry exceptions due to long execution times.
1
Identify the SQLScript procedure causing the error. This often requires correlating the error message with system logs or monitoring tools (e.g., SAP Solution Manager, HANA Studio/Cockpit's SQL Trace). Look for procedures that are frequently executed or have long execution times.
2
Use SAP HANA Studio or SAP HANA Cockpit to analyze the performance of the identified SQLScript procedure. This involves checking the execution plan, identifying bottlenecks, and understanding the resource consumption.
3
Optimize the SQLScript procedure. This may involve:
SELECT * FROM MY_TABLE WHERE MY_COLUMN = ?;4
Rewrite SQL statements within the procedure to be more efficient. Ensure proper indexing is in place for tables accessed by the procedure. Avoid row-by-row processing where set-based operations are possible.
UPDATE MY_TABLE SET MY_COLUMN = 'NEW_VALUE' WHERE ANOTHER_COLUMN = ?;5
Consider breaking down complex procedures into smaller, more manageable units, or refactoring them to use alternative approaches if applicable.
6
After optimization, thoroughly test the procedure and the affected application functionality to ensure the error is resolved and performance has improved.
2. Adjust SQLScript Transaction Timeout Settings easy
Increase the transaction timeout for SQLScript procedures if they are legitimately taking longer to execute.
1
Access SAP HANA Cockpit or HANA Studio and navigate to the system configuration. Search for parameters related to SQLScript or transaction timeouts. The specific parameter name might vary slightly depending on your HANA version, but look for something like `sqlscript_transaction_timeout` or similar.
2
Increase the value of the relevant timeout parameter. The default is often 600 seconds (10 minutes). You might try increasing it to 1200 seconds (20 minutes) or more, depending on the expected execution time of your procedures. **Caution:** Setting this too high can mask underlying performance issues and tie up system resources.
3
Apply the changes and restart the relevant HANA services or the entire HANA database if required for the parameter change to take effect. Consult your SAP HANA administration guide for specific restart procedures.
4
Monitor the system after the change to ensure the error is no longer occurring and that system performance remains acceptable.
3. Investigate and Resolve Resource Contention advanced
Address underlying system resource issues that might be causing SQLScript procedures to exceed their allocated time.
1
Monitor system resources such as CPU, memory, and disk I/O. Use SAP HANA Cockpit, SAP Solution Manager, or operating system-level tools to identify if any resource is consistently saturated.
2
Check for other demanding processes running on the HANA server that might be consuming excessive resources. This could include other SAP applications, batch jobs, or system maintenance tasks.
3
Analyze HANA-specific resource usage. Look at the number of active connections, the memory footprint of different services, and the workload of specific services. SAP HANA Cockpit provides detailed views for this.
4
If resource contention is identified, consider the following actions:
5
Scale up the HANA hardware (CPU, RAM) if it's a persistent resource limitation.
6
Optimize or reschedule other resource-intensive jobs to run during off-peak hours.
7
Review and tune HANA configuration parameters related to resource allocation and management.
8
Ensure the operating system and underlying hardware are properly configured and performing optimally.