Document Monitoring Best Practices

[vrajat]

Current README has the following markdown text:

Monitoring

Client side monitoring is set up right now, stats are published to MBean named rubix:name=stats

Engines which provide interface to view jmx stats can see these stats. E.g. in Presto you can run this query to see the stats:

presto:default> select * from jmx.jmx."rubix:name=stats";
    node     | cachedreads | extrareadfromremote |      hitrate       |      missrate      |   readfromcache    |  readfromremote   | remotereads | warmuppenalty 
-------------+-------------+---------------------+--------------------+--------------------+--------------------+-------------------+-------------+---------------
 presto-vbox |          25 |  1.7881784439086914 | 0.5681818181818182 | 0.4318181818181818 | 18.379225730895996 | 18.55983543395996 |          19 |             0 
(1 row)