我们正在使用confluent ms sql cdc连接器，连接描述符为：

curl -X POST -H \
  "Content-Type: application/json" --data '{
    "name" : "yury-mssql-cdc1",
    "config" : {
      "connector.class" : "io.confluent.connect.cdc.mssql.MsSqlSourceConnector",
      "tasks.max" : "1",
      "initial.database" : "test2",
      "username" : "user",
      "password" : "pass",
      "server.name" : "some-server.eu-west-1.rds.amazonaws.com",
      "server.port" : "1433",
      "change.tracking.tables" : "dbo.foobar"
    }
  }' \
   http://ip-10-0-0-24.eu-west-1.compute.internal:8083/connectors

整个基础设施都部署在aws。。。例外情况是：
查询changekey时引发错误异常
{databasename=test2，schemaname=dbo，tablename=foobar}（io.confluent.connect.cdc.mssql.que）ryservice:94)java.lang.nullpointerexception:sourceoffset不能为null。
任何帮助都将不胜感激。