Is it safe to reuse value from AsyncProducer.Successes()

[abonec]

Is it safe to reuse value from AsyncProducer.Successes() to next messages? Due to lack of documentation in the code it is not clear.
Need to clarify it in the doc.

[varun06]

Can you please elaborate more and give a quick use case?

[abonec]

My messages in megabytes and I want to check AsyncProducer.Successes and put those slices to sync.Pool to reuse later in order to reduce pressure to GC.

[varun06]

More curious - First of all, sync.Pool gets cleared every GC cycle, so you should use it very carefully, but I am more curious about your storing messages from success and doing something with them, can you tell me more about your use case?

[abonec]

Ok. My algorithm as following:
Send loop:

1. Take []byte from the sync.Pool
2. Serialize (size of slice counts in megabytes) message to this slice
3. Produce this message via async producer.

Release loop:

1. Get sent message from the AsyncProducer.Successes
2. Put underlying slice back to the pool to serialize next message.

My question is:
Is it safe to reuse []byte to future serialization? I ask because there will be serious issue if there will be concurrent write to this slice between sarama and my code.

[ghost]

Thank you for taking the time to raise this issue. However, it has not had any activity on it in the past 90 days and will be closed in 30 days if no updates occur.
Please check if the master branch has already resolved the issue since it was raised. If you believe the issue is still valid and you would like input from the maintainers then please comment to ask for it to be reviewed.

[vincentbernat]

This question is quite interesting. Does someone has an answer for it?