System Metrics - prod node GA Tracking ID

[janciesla8818]

This PR:

• enables system metrics service by default on all nodes
• new GA Tracking ID is added for prod nodes
• metrics tests refactoring

[mongoose-im]

7835.1 / Erlang 22.0 / small_tests / 310cb81
Reports root / small

---

7835.2 / Erlang 22.0 / internal_mnesia / 310cb81
Reports root/ big
OK: 1377 / Failed: 0 / User-skipped: 155 / Auto-skipped: 0

---

7835.3 / Erlang 22.0 / odbc_mssql_mnesia / 310cb81
Reports root/ big
OK: 2612 / Failed: 0 / User-skipped: 200 / Auto-skipped: 0

---

7835.4 / Erlang 22.0 / mysql_redis / 310cb81
Reports root/ big
OK: 2607 / Failed: 0 / User-skipped: 205 / Auto-skipped: 0

---

7835.7 / Erlang 22.0 / elasticsearch_and_cassandra_mnesia / 310cb81
Reports root/ big
OK: 328 / Failed: 0 / User-skipped: 28 / Auto-skipped: 0

---

7835.5 / Erlang 22.0 / riak_mnesia / 310cb81
Reports root/ big
OK: 1510 / Failed: 0 / User-skipped: 162 / Auto-skipped: 0

---

7835.6 / Erlang 22.0 / ldap_mnesia / 310cb81
Reports root/ big
OK: 1342 / Failed: 0 / User-skipped: 190 / Auto-skipped: 0

---

7835.9 / Erlang 21.3 / pgsql_mnesia / 310cb81
Reports root/ big / small
OK: 2625 / Failed: 0 / User-skipped: 187 / Auto-skipped: 0

[michalwski]

Looks good to me. I've found only some cosmetic things to improve.

[codecov]

Codecov Report

Merging #2610 into master will increase coverage by 2.22%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #2610      +/-   ##
==========================================
+ Coverage   76.81%   79.03%   +2.22%     
==========================================
  Files         354      354              
  Lines       30040    30040              
==========================================
+ Hits        23074    23743     +669     
+ Misses       6966     6297     -669

Impacted Files	Coverage Δ
...system_metrics/service_mongoose_system_metrics.erl	69.81% <ø> (ø)	⬆️
src/event_pusher/mod_event_pusher_sns.erl	85.13% <0%> (-5.41%)	⬇️
src/mam/mod_mam_meta.erl	94.25% <0%> (-2.3%)	⬇️
src/mam/mod_mam.erl	89.09% <0%> (-0.95%)	⬇️
src/muc_light/mod_muc_light.erl	83.25% <0%> (-0.94%)	⬇️
src/ejabberd_sm.erl	75.46% <0%> (-0.32%)	⬇️
src/mod_roster.erl	79.58% <0%> (-0.24%)	⬇️
src/mod_muc_log.erl	77.69% <0%> (ø)	⬆️
src/ejabberd_c2s.erl	88.51% <0%> (ø)	⬆️
src/mod_muc_room.erl	77.54% <0%> (+0.11%)	⬆️
... and 27 more

---

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[mongoose-im]

7836.1 / Erlang 22.0 / small_tests / 9b02d3a
Reports root / small

---

7836.2 / Erlang 22.0 / internal_mnesia / 9b02d3a
Reports root/ big
OK: 1377 / Failed: 0 / User-skipped: 155 / Auto-skipped: 0

---

7836.3 / Erlang 22.0 / odbc_mssql_mnesia / 9b02d3a
Reports root/ big
OK: 2619 / Failed: 1 / User-skipped: 200 / Auto-skipped: 0

pep_SUITE:pep_tests:unsubscribe_after_presence_unsubscription

{error,
  {{badmatch,
     [{xmlel,<<"message">>,
        [{<<"from">>,
        <<"alice_unsubscribe_after_presence_unsubscription_83.494314@localhost">>},
         {<<"to">>,
        <<"bob_unsubscribe_after_presence_unsubscription_83.494314@localhost/res1">>},
         {<<"type">>,<<"headline">>}],
        [{xmlel,<<"event">>,
           [{<<"xmlns">>,
           <<"http://jabber.org/protocol/pubsub#event">>}],
           [{xmlel,<<"items">>,
            [{<<"node">>,<<"ReB2XVml4oIP4l4RdunyqA==">>}],
            [{xmlel,<<"item">>,
               [{<<"id">>,<<"salmon">>}],
               [{xmlel,<<"entry">>,
                  [{<<"xmlns">>,
                  <<"http://www.w3.org/2005/Atom">>}],
                  []}]}]}]},
         {xmlel,<<"headers">>,
           [{<<"xmlns">>,<<"http://jabber.org/protocol/shim">>}],
           []}]}]},
   [{pep_SUITE,'-unsubscribe_after_presence_unsubscription/1-fun-0-',2,
      [{file,
         "/home/travis/build/esl/MongooseIM/big_tests/_build/default/lib/ejabberd_tests/tests/pep_SUITE.erl"},
       {line,300}]},
    {escalus_story,story,4,
      [{file,
         "/home/travis/build/esl/MongooseIM/big_tests/_build/default/lib/escalus/src/escalus_story.erl"},
       {line,72}]},
    {test_server,ts_tc,3,[{file,"test_server.erl"},{line,1748}]},
    {test_server,run_test_case_eval1,6,
      [{file,"test_server.erl"},{line,1263}]},
    {test_server,run_test_case_eval,9,
      [{file,"test_server.erl"},{line,1195}]}]}}

Report log

---

7836.4 / Erlang 22.0 / mysql_redis / 9b02d3a
Reports root/ big
OK: 2607 / Failed: 0 / User-skipped: 205 / Auto-skipped: 0

---

7836.5 / Erlang 22.0 / riak_mnesia / 9b02d3a
Reports root/ big
OK: 1510 / Failed: 0 / User-skipped: 162 / Auto-skipped: 0

---

7836.7 / Erlang 22.0 / elasticsearch_and_cassandra_mnesia / 9b02d3a
Reports root/ big
OK: 328 / Failed: 0 / User-skipped: 28 / Auto-skipped: 0

---

7836.6 / Erlang 22.0 / ldap_mnesia / 9b02d3a
Reports root/ big
OK: 1342 / Failed: 0 / User-skipped: 190 / Auto-skipped: 0

---

7836.9 / Erlang 21.3 / pgsql_mnesia / 9b02d3a
Reports root/ big / small
OK: 2625 / Failed: 0 / User-skipped: 187 / Auto-skipped: 0