使用./bk_install saas-o 安装发现bk_monitor（蓝鲸监控）组件报错“ERROR deploy failed: timeout”。
单独尝试安装各个组件：
#故障自愈
[root@rbtnode1 install]# ./bk_install saas-o bk_fta_solutions
#日志检索
[root@rbtnode1 install]# ./bk_install saas-o bk_log_search
#节点管理
[root@rbtnode1 install]# ./bk_install saas-o bk_nodeman
#标准运维
[root@rbtnode1 install]# ./bk_install saas-o bk_sops
#蓝鲸监控
[root@rbtnode1 install]# ./bk_install saas-o bk_monitor
发现前面几个bk_fta_solutions、bk_log_search、bk_nodeman、bk_sops都可以安装成功，唯独对bk_monitor安装，依然报错如下：
[root@rbtnode1 install]# ./bk_install saas-o bk_monitor
省略输出..
2020-03-09 13:27:36 125 INFO check deploy result. retry 132
2020-03-09 13:27:39 125 INFO check deploy result. retry 133
2020-03-09 13:27:39 134 ERROR deploy failed: timeout
[192.168.1.6]20200309-132739 153 Deploy saas bk_monitor failed.
[192.168.1.6]20200309-132739 47 Abort
进一步查看agent日志(/data/bkce/logs/paas_agent/agent.log)，最终因为部署任务timeout而终止，未见其他明显报错：
2020/03/09 13:24:57 job.go:279: Building wheels for collected packages: gevent, netifaces, arrow, msgpack-python, wrapt, itypes, backports.shutil-get-terminal-size, simplegeneric, scandir
2020/03/09 13:24:57 job.go:279: Running setup.py bdist_wheel for gevent: started
2020/03/09 13:27:32 job.go:279: Running setup.py bdist_wheel for gevent: still running...
2020/03/09 13:27:38 job.go:297: Deployment task execution timeout
查了些网上资料，说是因为机器配置不够，增加核数为6即可解决，但实际我测试无效，报错不变；
在蓝鲸官方群咨询，客服给出一个解决方案：
- https://bk.tencent.com/s-mart/community/question/787
但是实际这个Case和我这里遇到的情况并不一样，因为我这没有看到那个error。
晚上重新整理下思路，借鉴案例中清理环境的方式，然后重新部署，这次agent.log看到报错信息了：
2020/03/10 02:29:54 job.go:279: File "/opt/py27_e/lib/python2.7/site-packages/pymysql/connections.py", line 906, in _read_packet
2020/03/10 02:29:54 job.go:279: packet.check_error()
2020/03/10 02:29:54 job.go:279: File "/opt/py27_e/lib/python2.7/site-packages/pymysql/connections.py", line 367, in check_error
2020/03/10 02:29:54 job.go:279: err.raise_mysql_exception(self._data)
2020/03/10 02:29:54 job.go:279: File "/opt/py27_e/lib/python2.7/site-packages/pymysql/err.py", line 120, in raise_mysql_exception
2020/03/10 02:29:54 job.go:279: _check_mysql_exception(errinfo)
2020/03/10 02:29:54 job.go:279: File "/opt/py27_e/lib/python2.7/site-packages/pymysql/err.py", line 115, in _check_mysql_exception
2020/03/10 02:29:54 job.go:279: raise InternalError(errno, errorvalue)
2020/03/10 02:29:54 job.go:279: django.db.utils.InternalError: (1049, u"Unknown database 'bkdata_monitor_alert'")
2020/03/10 02:29:55 job.go:304: error waiting for Cmd exit status 1
这提示居然是没有这个名称为bkdata_monitor_alert的数据库？？
结合之前的agent日志是确认有建表操作成功的，说明是环境清理操作很可能把对应组件的库也给删除了。
这里先不深究，直接查看当前的数据库列表：
MySQL [(none)]> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| bk_fta_solutions |
| bk_log_search |
| bk_monitor |
| bk_nodeman |
| bk_sops |
| bksuite_common |
| job |
| jobLog |
| mysql |
| open_paas |
| performance_schema |
| sys |
+--------------------+
13 rows in set (0.00 sec)
果然没有这个bkdata_monitor_alert库，这里先直接尝试创建一个空库试下：
MySQL [(none)]> create database bkdata_monitor_alert character set utf8;
Query OK, 1 row affected (0.01 sec)
再次尝试bk_monitor的安装：
# 再次安装bk_monitor
[root@rbtnode1 install]# ./bk_install saas-o bk_monitor
# 监控agent.log
[root@rbtnode1 paas_agent]# pwd
/data/bkce/logs/paas_agent
[root@rbtnode1 paas_agent]# tail -20f agent.log
发现这次agent.log日志最终显示Job正常完成了：
省略部分日志..
2020/03/10 02:45:38 job.go:279: Applying sessions.0001_initial... OK
2020/03/10 02:45:38 job.go:279: ------change db success------
2020/03/10 02:47:25 job.go:279: ------ start app server ------
2020/03/10 02:47:25 job.go:279: su: ignore --preserve-environment, it's mutually exclusive to --login.
2020/03/10 02:47:25 job.go:279: /etc/profile: line 77: ulimit: open files: cannot modify limit: Operation not permitted
2020/03/10 02:47:25 job.go:279: /etc/profile: line 78: ulimit: open files: cannot modify limit: Operation not permitted
2020/03/10 02:47:25 job.go:279: /etc/profile: line 79: ulimit: open files: cannot modify limit: Operation not permitted
2020/03/10 02:47:25 job.go:279: /etc/profile: line 80: ulimit: open files: cannot modify limit: Operation not permitted
2020/03/10 02:47:26 job.go:279: Last login: Mon Mar 9 14:01:54 CST 2020
2020/03/10 02:47:28 job.go:279: Job Done
2020/03/10 02:47:28 job.go:306: RunJob end ... ...
赶紧去看下安装的窗口，发现这次bk_monitor终于安装成功了：
[root@rbtnode1 install]# ./bk_install saas-o bk_monitor
省略部分日志..
2020-03-10 02:47:24 125 INFO check deploy result. retry 107
2020-03-10 02:47:26 125 INFO check deploy result. retry 108
2020-03-10 02:47:29 125 INFO check deploy result. retry 109
2020-03-10 02:47:30 131 INFO bk_monitor have been deployed successfully
[192.168.1.6]20200310-024730 151 SaaS application bk_monitor has been deployed successfully
[192.168.1.6]20200310-024730 56 install saas-o(bk_monitor) done
登陆蓝鲸的工作台，也确认这次蓝鲸监控组件已经安装成功，可以正常操作了。