when existed a cluster,nodemgr always output some error log

[jd-zhang]

Issue migrated from trac ticket # 714

component: node manager | priority: major

2022-05-19 16:35:38: hellen@zettadb.com created the issue

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1.meta is rbr mode
2.the cluster is rbr mode
3.the info of luster :{"comps":"1","cpu_cores":"8","dbcfg":"1","ha_mode":"rbr","innodb_size":"1","max_connections":"6","max_storage_size":"20","nodes":"3","shards":"2"}

4.the result ,nodemgr output:
Thu May 19 16:34:25 2022 tid:0xcb4a3 [ERROR] [/home/summerxwu/code/enterprise-kunlun/node_mgr/src/instance_info.cc:125 Init_Mysql]: connect mysql unix failed: mysql_real_connect faild, Errno: 2002, info: Can't connect to local server through socket '/home/kunlun/testmgr0.9.2/storage_datadir/instance_data/data_dir' (2)
Thu May 19 16:34:25 2022 tid:0xcb4a3 [ERROR] [/home/summerxwu/code/enterprise-kunlun/node_mgr/src/instance_info.cc:544 get_mysql_alive]: mysql select version failed: connect mysql unix failed: mysql_real_connect faild, Errno: 2002, info: Can't connect to local server through socket '/home/kunlun/testmgr0.9.2/storage_datadir/instance_data/data_dir' (2)
Thu May 19 16:34:25 2022 tid:0xcb4a3 [ERROR] [/home/summerxwu/code/enterprise-kunlun/node_mgr/src/instance_info.cc:125 Init_Mysql]: connect mysql unix failed: mysql_real_connect faild, Errno: 2002, info: Can't connect to local server through socket '/home/kunlun/testmgr0.9.2/storage_datadir/instance_data/data_dir' (2)
Thu May 19 16:34:25 2022 tid:0xcb4a3 [ERROR] [/home/summerxwu/code/enterprise-kunlun/node_mgr/src/instance_info.cc:544 get_mysql_alive]: mysql select version failed: connect mysql unix failed: mysql_real_connect faild, Errno: 2002, info: Can't connect to local server through socket '/home/kunlun/testmgr0.9.2/storage_datadir/instance_data/data_dir' (2)
Thu May 19 16:34:25 2022 tid:0xcb4a3 [ERROR] [/home/summerxwu/code/enterprise-kunlun/node_mgr/src/instance_info.cc:709 keepalive_instance]: storage_instance no alive, ip=192.168.0.129, port=58512
Thu May 19 16:34:25 2022 tid:0xcb4a3 [INFO] [/home/summerxwu/code/enterprise-kunlun/node_mgr/src/job.cc:166 job_control_storage]: job_control_storage cmd cd /home/kunlun/testmgr0.9.2/instance_binaries/storage/58512/kunlun-storage-0.9.2/dba_tools;./startmysql.sh 58512
Thu May 19 16:34:25 2022 tid:0xcb4a3 [INFO] [/home/summerxwu/code/enterprise-kunlun/node_mgr/src/job.cc:175 job_control_storage]: mysqld is already running.

Thu May 19 16:34:25 2022 tid:0xcb4a3 [ERROR] [/home/summerxwu/code/enterprise-kunlun/node_mgr/src/instance_info.cc:125 Init_Mysql]: connect mysql unix failed: mysql_real_connect faild, Errno: 2002, info: Can't connect to local server through socket '/home/kunlun/testmgr0.9.2/storage_datadir/instance_data/data_dir' (2)
Thu May 19 16:34:25 2022 tid:0xcb4a3 [ERROR] [/home/summerxwu/code/enterprise-kunlun/node_mgr/src/instance_info.cc:544 get_mysql_alive]: mysql select version failed: connect mysql unix failed: mysql_real_connect faild, Errno: 2002, info: Can't connect to local server through socket '/home/kunlun/testmgr0.9.2/storage_datadir/instance_data/data_dir' (2)
Thu May 19 16:34:25 2022 tid:0xcb4a3 [ERROR] [/home/summerxwu/code/enterprise-kunlun/node_mgr/src/instance_info.cc:125 Init_Mysql]: connect mysql unix failed: mysql_real_connect faild, Errno: 2002, info: Can't connect to local server through socket '/home/kunlun/testmgr0.9.2/storage_datadir/instance_data/data_dir' (2)
Thu May 19 16:34:25 2022 tid:0xcb4a3 [ERROR] [/home/summerxwu/code/enterprise-kunlun/node_mgr/src/instance_info.cc:544 get_mysql_alive]: mysql select version failed: connect mysql unix failed: mysql_real_connect faild, Errno: 2002, info: Can't connect to local server through socket '/home/kunlun/testmgr0.9.2/storage_datadir/instance_data/data_dir' (2)
Thu May 19 16:34:25 2022 tid:0xcb4a3 [ERROR] [/home/summerxwu/code/enterprise-kunlun/node_mgr/src/instance_info.cc:709 keepalive_instance]: storage_instance no alive, ip=192.168.0.129, port=58515
Thu May 19 16:34:25 2022 tid:0xcb4a3 [INFO] [/home/summerxwu/code/enterprise-kunlun/node_mgr/src/job.cc:166 job_control_storage]: job_control_storage cmd cd /home/kunlun/testmgr0.9.2/instance_binaries/storage/58515/kunlun-storage-0.9.2/dba_tools;./startmysql.sh 58515
Thu May 19 16:34:25 2022 tid:0xcb4a3 [INFO] [/home/summerxwu/code/enterprise-kunlun/node_mgr/src/job.cc:175 job_control_storage]: mysqld is already running.