问题
I am using kafka for event-sourcing. I realized that we still need to configure the log retention time, i.e. log.retention.hours.
What is the best value to use if I want to keep all my messages indefinitely? The sample configuration for log.retention.bytes is set to -1, can I use -1 also in the log.retention.hours?
回答1:
See the following Kafka JIRA which is due for the 0.9.0.0 release. For the time being set as suggested:
log.retention.bytes = -1
log.retention.hours = 2147483647
Which is the same as forever (~250K years).
And then when the 0.9.0.0 release is available the log.retention.hours should have similar -1 value available.
回答2:
Yes you can.
If you want to retain all topics forever, you can set both log.retention.hours and log.retention.bytes to -1.
来源：https://stackoverflow.com/questions/32818820/indefinite-log-retention-on-kafka