SQS SendMessageBatch Concurrency Limit-CodePudding

What is the maximum concurrency limit on SQS FIFO Queue? If I call 200 sendMessageBatch APIs with 10 messages(< 256KB) per API invocation. Will SQS be able to handle this?

Sample Code:

   const totalSqsBatches = 200;
   const sqsPromises = [];

   for (let batch = 0; batch < totalSqsBatches; batch  ) {
     sqsPromises.push(
       sqs.sendMessageBatch({
         Entries: sqsEntries.slice(batch, (batch   1) * 10),
         QueueUrl: URL,
       })
     );
   }

  await Promise.all(sqsPromises).catch(err => console.error(err)

CodePudding user response：

Yes, it will.

If you use batching, FIFO queues support up to 3,000 messages per second, per API method (SendMessageBatch, ReceiveMessage, or DeleteMessageBatch). The 3000 messages per second represent 300 API calls, each with a batch of 10 messages.

This means you can invoke 200 times sendMessageBatch API. Also, 300 API calls is a soft limit and can be increased by contacting AWS support.

Besides that, there is High throughput for FIFO queues. You can go up to 3,000 API calls, each with a batch of 10 messages.

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