[EAGLE-1023] Update jmx metric collector scripts

https://issues.apache.org/jira/browse/EAGLE-1023

* fix multi-thread bug in fnmatch
* add HBase ha check script
* change url connection timeout from 30s to 60s
* add necessary exception handling
* add two new metrics `hadoop.namenode.dfs.checkpointtimelag` & `hadoop.namenode.fsnamesystemstate.numrevisedlivedatanodes`
* update metric filter configuration

Author: Zhao, Qingwen <qingwzhao@apache.org>

Closes #935 from qingwen220/EAGLE-1023.
7 files changed