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feat(s3stream): adopt objectStorage throttleStrategy for upload WAL task
what is changed.
- removed UploadWalTask ratelimiter let object storage do the throttle logic.
why
- in our poc environment we remove the limit logic at first. the s3.network.baseline.bandwidth is 1GB/s
- the upload task cost time drop from 3000ms to 500ms.
- the failover duration drop from 5s to 1s per partition