Retry on closed connection #189
Merged
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We upload large amount of data to s3 and after upgrading version 1.0.0 , we experienced failures for large uploads , randomly we get errors like below.
RequestError: send request failed caused by: Put "https://testing.s3.amazonaws.com/xxxxx&partNumber=n&uploadId=id": write tcp 10.xx.xx.xx:41654->52.216.8.115:443: use of closed network connectionAfter digging AWS SDK
ShouldRetrymethod, we noticed that for some cases it does returnfalsebut for some cases it returnstrueeven if base error saysuse of closed network connectionin both cases, you can see belowSerializationError: failed to unmarshal error message status code: 500, request id: IDDDDDDD, host id: 3231sdsadasdasdI= caused by: UnmarshalError: failed to unmarshal error message caused by: read tcp 10.xx.xx.xx:39860->52.216.166.67:443: use of closed network connection: trueRequestError: send request failed caused by: Put "https://testing.s3.amazonaws.com/xxxx?partNumber=n&uploadId=id--": write tcp 10.xx.xx.xx:41654->52.216.8.115:443: use of closed network connection: falseSo we implemented this patch to retry on any error that contains
use of closed network connection, as golang does not export this errorhttps://github.com/golang/go/issues/4373, we had to check error msg.