Description of Issue/Question

when i turn on the master_job_cache， there will be a lot of errors and warnings，but the command salt “*” test.ping still works,it seems the errors does not affect anytings,and the data still goes into mysql.

Setup

(Please provide relevant configs and/or SLS files (Be sure to remove sensitive info).) maser config file interface: 0.0.0.0 log_level: debug job_cache: True auto_accept: True file_roots: base: - /srv/salt/

MySQL

mysql.host: ‘xxx.xxx.xxx.xxx’ mysql.user: ‘salt’ mysql.pass: ‘salt’ mysql.db: ‘salt’ mysql.port: 3306

Master Job Cache

master_job_cache: mysql

Steps to Reproduce Issue

(Include debug logs if possible and relevant.)

Versions Report

(Provided by running salt --versions-report. Please also mention any differences in master/minion versions.)

[root@localhost salt]# salt --versions-report Salt Version: Salt: 2017.7.2

Dependency Versions: cffi: Not Installed cherrypy: Not Installed dateutil: Not Installed docker-py: Not Installed gitdb: Not Installed gitpython: Not Installed ioflo: Not Installed Jinja2: 2.7.2 libgit2: Not Installed libnacl: Not Installed M2Crypto: Not Installed Mako: Not Installed msgpack-pure: Not Installed msgpack-python: 0.4.6 mysql-python: Not Installed pycparser: Not Installed pycrypto: 2.6.1 pycryptodome: Not Installed pygit2: Not Installed Python: 2.7.5 (default, Nov 6 2016, 00:28:07) python-gnupg: Not Installed PyYAML: 3.11 PyZMQ: 15.3.0 RAET: Not Installed smmap: Not Installed timelib: Not Installed Tornado: 4.2.1 ZMQ: 4.1.4

System Versions: dist: centos 7.3.1611 Core locale: UTF-8 machine: x86_64 release: 3.10.0-514.el7.x86_64 system: Linux version: CentOS Linux 7.3.1611 Core test2.log