Details
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Bug
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Status: Closed (View Workflow)
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Major
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Resolution: Not a Bug
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2.2
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None
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linux + make debug + mysql 5.6.16
Description
monitor config like:
[maxscale]
|
threads=1 |
log_info=1 |
log_debug=1 |
|
|
[RWMySQLMonitor]
|
type=monitor
|
module=mysqlmon
|
servers=server_m,server_s
|
monitor_interval=10000 |
|
|
[server_m]
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type=server
|
address=10.125.198.61 |
port=3009 |
protocol=MySQLBackend
|
[server_s]
|
type=server
|
address=10.125.194.99 |
port=3009 |
protocol=MySQLBackend
|
we add log find closed connect always server_s connect
warning: [mariadbmon] (do_show_slave_status): exec query failed:SHOW SLAVE STATUS, mysql:0x1fc4260
error : (mon_report_query_error): Failed to execute query on server 'server_s' ([10.125.194.99]:3009): Lost connection to MySQL server during query
notice : (mon_log_state_change): Server changed state: server_s[10.125.194.99:3009]: lost_slave. [Slave, Running] -> [Running]
we add the first line log in do_show_slave_status
else |
{
|
MXS_WARNING("exec query failed:%s, mysql:%p", query, database->con); |
mon_report_query_error(database);
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}
|
bt
(gdb) bt
#0 mon_report_query_error (db=0x1fc23c0) at /home/xiangzhong.wxd/gitlab/MaxScale/server/core/monitor.cc:1680
#1 0x00007f038a953934 in do_show_slave_status (mon=0x1fc3280, serv_info=0x1fc49e0, database=0x1fc23c0)
at /home/xiangzhong.wxd/gitlab/MaxScale/server/modules/monitor/mariadbmon/mariadbmon.cc:1530
#2 0x00007f038a953b3f in monitor_mysql_db (mon=0x1fc3280, database=0x1fc23c0, serv_info=0x1fc49e0)
at /home/xiangzhong.wxd/gitlab/MaxScale/server/modules/monitor/mariadbmon/mariadbmon.cc:1578
#3 0x00007f038a95433c in monitorDatabase (mon=0x1fc0e60, database=0x1fc23c0) at /home/xiangzhong.wxd/gitlab/MaxScale/server/modules/monitor/mariadbmon/mariadbmon.cc:1798
#4 0x00007f038a95524e in monitorMain (arg=0x1fc3280) at /home/xiangzhong.wxd/gitlab/MaxScale/server/modules/monitor/mariadbmon/mariadbmon.cc:2216
#5 0x00007f038f2c1aa1 in start_thread () from /lib64/libpthread.so.0
#6 0x00007f038d48c93d in clone () from /lib64/libc.so.6
we cap packet find, the connect is closed by mxs:
maxscale IP: 10.101.161.10.40112
server_s IP:10.125.194.99.3009
