KathySun-c 1fc487c7df IMPALA-3981: Fix crash when accessing statestored / catalogd /memz page ...

The /memz page tried to add JVM metrics even when they didn't exist for
all daemons, not just Impala. This led to a crash when they tried to
access ExecEnv::GetInstance() without an initialised ExecEnv at
statestored and catalogd

To fix, changed the memz handler method to take an optional metric
group, provided by the caller.  memz handler will check the existence of
the metric group.

Used C++11 lambdas rather than boost::bind to help simplify the code.

Testing: Ran locally and looked at impalad/memz, statestored/memz
and catalogd/memz

Add a test file test_web_pages.py to test sending request to /memz on
impalad / statestored / catalogd

Change-Id: If59b10f20044d1a468f27810a3029fe18fb19f29
Reviewed-on: http://gerrit.cloudera.org:8080/3998
Reviewed-by: Tim Armstrong <tarmstrong@cloudera.com>
Tested-by: Internal Jenkins

2016-08-20 04:23:50 +00:00

..

test_web_pages.py

IMPALA-3981: Fix crash when accessing statestored / catalogd /memz page

2016-08-20 04:23:50 +00:00