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The transaction with the given request token is already in progress.
Recommended Settings
This is a general recommendation for handling the TransactionInProgressException. These settings help
ensure that the client retries will trigger completion of the ongoing TransactWriteItems request.
Set clientExecutionTimeout to a value that allows at least one retry to be processed after 5
seconds have elapsed since the first attempt for the TransactWriteItems operation.
Set socketTimeout to a value a little lower than the requestTimeout setting.
requestTimeout should be set based on the time taken for the individual retries of a single
HTTP request for your use case, but setting it to 1 second or higher should work well to reduce chances of
retries and TransactionInProgressException errors.
Use exponential backoff when retrying and tune backoff if needed.
Assuming default retry policy,
example timeout settings based on the guidelines above are as follows:
Example timeline:
0-1000 first attempt
1000-1500 first sleep/delay (default retry policy uses 500 ms as base delay for 4xx errors)
1500-2500 second attempt
2500-3500 second sleep/delay (500 * 2, exponential backoff)
3500-4500 third attempt
4500-6500 third sleep/delay (500 * 2^2)
6500-7500 fourth attempt (this can trigger inline recovery since 5 seconds have elapsed since the first attempt reached TC)
The transaction with the given request token is already in progress.
Recommended Settings
This is a general recommendation for handling the
TransactionInProgressException. These settings help ensure that the client retries will trigger completion of the ongoingTransactWriteItemsrequest.Set
clientExecutionTimeoutto a value that allows at least one retry to be processed after 5 seconds have elapsed since the first attempt for theTransactWriteItemsoperation.Set
socketTimeoutto a value a little lower than therequestTimeoutsetting.requestTimeoutshould be set based on the time taken for the individual retries of a single HTTP request for your use case, but setting it to 1 second or higher should work well to reduce chances of retries andTransactionInProgressExceptionerrors.Use exponential backoff when retrying and tune backoff if needed.
Assuming default retry policy, example timeout settings based on the guidelines above are as follows:
Example timeline:
0-1000 first attempt
1000-1500 first sleep/delay (default retry policy uses 500 ms as base delay for 4xx errors)
1500-2500 second attempt
2500-3500 second sleep/delay (500 * 2, exponential backoff)
3500-4500 third attempt
4500-6500 third sleep/delay (500 * 2^2)
6500-7500 fourth attempt (this can trigger inline recovery since 5 seconds have elapsed since the first attempt reached TC)