Hi Maogeng,
Thanks for the trick.
Yes I captured a bit more details:
{"replicaName":"MyReplica_3113","replicaID":"{8863094A-973F-4EB3-B4A1-2B13FEAA1AE3}","submissionTime":1444299287070,"lastUpdatedTime":1444299294803,"status":"Failed","error":{"code":500,"message":"Unable to synchronize replica.","details":["Sync replica internal error - {8863094A-973F-4EB3-B4A1-2B13FEAA1AE3}."]}}
But I am still scratching my head what caused the internal error.
This a great step towards to the right direction.