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[root@localhost cron.d]# tsar --cron
[Wed Dec 12 11:12:33 2018] output_db.c:110 output_db write error:Connection refused

开启采集以后，提示无法连接数据库。
tsar2db的配置如下：
[root@localhost cron.d]# cat /etc/tsar2db/tsar2db.cfg
#mysql database hostname or ip
db_address=localhost
#database port default is 3306
db_port=3306
#mysql user info for tsar
db_name=tsar
db_user=root
db_pw=11
#tsar2db port.same as output_nagios_addr at /etc/tsar/tsar.conf
server_port=56677
#log for tsar2db.see more@/var/log/message
debug=0
pid_file=/var/run/tsar2db.pid
配置中用户名和密码都是正确的。请问这是什么问题？或是哪里有详细的错误日志？

readme写的不是很详细呀，先做哪一步再做哪一步？怎么运行tsar_client, tsar_server