• dble version：
  5.7.21-dble-9.9.9.9-f13a30c4c1af980ecdbda904700c45e166257166-20190819050701

• preconditions ：
  no

• configs：

schema.xml

rule.xml

server.xml

        <property name="sqlExecuteTimeout">5</property>

• steps：
  step1. query to dble:

set autocommit=0; -- success
select * from sharding_2; -- success
-- wait >5s
select * from sharding_2; -- fail

• expect result：
  1.query success, gap time should not calculated in sqlExecuteTimeOut

• real result：
  1.get error like:
  ERROR 1152 (HY000): Connection {DataHost[172.100.9.6:3306],Schema[db05],threadID[4233]} was closed ,reason is [Connection {DataHost[172.100.9.6:3306],Schema[db05],threadID[4233]} was closed ]

• supplements：
  1.