mysql 접속시에 자꾸 아래와 같은 에러가 나서..

Can not read response from server. Expected to read 4 bytes, read 0 bytes before connection was unexpectedly lost.

context.xml의 설정을 아래와 같이 바꿔주니 해결된듯하다.

    <Resource auth="Container"
              driverClassName="com.mysql.jdbc.Driver"
              url="jdbc:mysql://xxx.xxx.xxx.xxx:3306/dbname?characterEncoding=utf-8&amp;interactiveClient=true&amp;autoReconnect=true&amp;autoReconnectForPools=true&amp;useUnicode=true&amp;characterSetResults=UTF-8"
              type="javax.sql.DataSource"
              name="jdbc/xxxxx"
              username="userid"
              password="userpw"
              initialSize="0"
              maxActive="20"
              maxIdle="10"
              minIdle="0"
              maxWait="-1"
              validationQuery="SELECT 1"
              testOnBorrow="true"
              poolPreparedStatements="true"
              removeAbandoned="true"
              removeAbandonedTimeout="60"
              logAbandoned="true"
              loginTimeout="10"
    />