defaultPartitionName:"_default"# default partition name for a collection
defaultIndexName:"_default_idx"# default index name
retentionDuration:86400# time travel reserved time, insert/delete will not be cleaned in this period. 1 days in seconds
retentionDuration:0# time travel reserved time, insert/delete will not be cleaned in this period. disable it by default
entityExpiration:-1# Entity expiration in seconds, CAUTION make sure entityExpiration >= retentionDuration and -1 means never expire
gracefulTime:5000# milliseconds. it represents the interval (in ms) by which the request arrival time needs to be subtracted in the case of Bounded Consistency.