myconfig：
fabric version : 1.4.2
no of orderer : 7
no of org : 7
consensus : raft
有人在遇到bulk transaction时遇到以下问题吗？我的一些交易丢失了，但是在客户端（nodesdk）上没有出现任何错误。
订购者日志
2019-12-26 11:31:24.273 UTC [orderer.consensus.etcdraft] logSendFailure -> ERRO 1258 Failed to send StepRequest to 7, because: aborted channel=byfn-sys-channel node=2
2019-12-26 11:31:25.172 UTC [orderer.consensus.etcdraft] Step -> INFO 1259 2 [logterm: 153, index: 152, vote: 2] ignored MsgPreVote from 7 [logterm: 153, index: 152] at term 153: lease is not expired (remaining ticks: 6) channel=byfn-sys-channel node=2
2019-12-26 11:31:25.226 UTC [orderer.consensus.etcdraft] Step -> INFO 125a 2 [logterm: 153, index: 152, vote: 2] ignored MsgPreVote from 5 [logterm: 153, index: 152] at term 153: lease is not expired (remaining ticks: 6) channel=byfn-sys-channel node=2
2019-12-26 11:31:25.771 UTC [orderer.consensus.etcdraft] logSendFailure -> ERRO 125b Failed to send StepRequest to 5, because: aborted channel=chpreferences node=2
2019-12-26 11:31:25.771 UTC [orderer.consensus.etcdraft] logSendFailure -> ERRO 125c Failed to send StepRequest to 6, because: aborted channel=chpreferences node=2
2019-12-26 11:31:25.773 UTC [orderer.consensus.etcdraft] logSendFailure -> ERRO 125d Failed to send StepRequest to 5, because: aborted channel=byfn-sys-channel node=2
2019-12-26 11:31:25.773 UTC [orderer.consensus.etcdraft] logSendFailure -> ERRO 125e Failed to send StepRequest to 6, because: aborted channel=byfn-sys-channel node=2