13:05:36.9782017-03-17T12:05:36.978092Z 0 [ERROR] /usr/sbin/mysqld: Got timeout reading communication packets
{
textPayload: "2017-03-17T12:05:36.978092Z 0 [ERROR] /usr/sbin/mysqld: Got timeout reading communication packets"
insertId: "s=3b9eaa5046a84972b4d345fa44f60bef;i=74d3d6;b=8fc4adc83d304abdbdba1f5917c1680c;m=31aa628622c;t=54aebfed952b0;x=4a31d46558dbdf9c@a1"
resource: {…}
timestamp: "2017-03-17T12:05:36.978608Z"
severity: "ERROR"
logName: "projects/voordemensen-tickets/logs/cloudsql.googleapis.com%2Fmysql.err" }
Note that this isn't necessarily the Proxy, it could have been transient unavailability of the database itself. During the problem period did you attempt to connect to the database over normal IP connectivity? (I.e. whitelist your desktop ip momentarily and attempt a connection to the database Publix IP).