Too many zk watchers created by Console

[kfchu]

现状：

exec_num = e
job_num = j
console_watcher = 30j + 5e + 8je + 7

(1)
/$Jobs/<job_name>/config
(28)
/$Jobs/<job_name>/config/xxx

(8)
/$Jobs/<job_name>/servers/<server_name> /
/$Jobs/<job_name>/servers/<server_name> /processSuccessCount
/$Jobs/<job_name>/servers/<server_name> /processFailureCount
/$Jobs/<job_name>/servers/<server_name> /sharding
/$Jobs/<job_name>/servers/<server_name> /ip
/$Jobs/<job_name>/servers/<server_name> /jobversion
/$Jobs/<job_name>/servers/<server_name> /version
/$Jobs/<job_name>/servers/<server_name> /status

(1)
/vip.job.facm/$Jobs/<job_name>/servers/

(5)
/$SaturnExecutors/executors/<server_name>/
/$SaturnExecutors/executors/<server_name>/lastBeginTime
/$SaturnExecutors/executors/<server_name>/clean
/$SaturnExecutors/executors/<server_name>/ip
/$SaturnExecutors/executors/<server_name>/version

-- common (7)--
/$SaturnExecutors/sharding
/$SaturnExecutors/sharding/content
/$SaturnExecutors/sharding/count

/$SaturnExecutors/leader
/$SaturnExecutors/leader/host
/$SaturnExecutors/leader/latch
/$SaturnExecutors/executors

[kfchu]

改造方案：

针对 /$Jobs/<job_name>/config 的children节点，只保留2个（每个作业减少了26个）：

• /$Jobs/<job_name>/config/enabled
• /$Jobs/<job_name>/config/forceshard

针对/$SaturnExecutors/executors/<server_name>/的children节点，只保留1个（每作业 X Executor减少了6个）：

• /$Jobs/<job_name>/servers/<server_name>/status

因此 修改后的console_watcher=4j + 5e + 2je + 7