org.apache.ibatis.exceptions.PersistenceException:
### Error opening session. Cause: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
### Cause: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
Exception Context:
[1:activity=Transaction]
[2:class=com.irti.service.coupon.MarCouponService]
[3:method=findCouponsByMerchantId]
[4:args={{merchantId=135173969527221}}]
[5:info=
### Error opening session. Cause: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
### Cause: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.]
[6:code=200]
[7:SQLErrorCode=0]
[8:SQLState=08S01]
[9:SQLMessage=Communications link failure
The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.]
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