This patch adds the ability to share the per-host stats for locally
admitted queries across all coordinators. This helps to get a more
consolidated view of the cluster for stats like slots_in_use and
mem_admitted when making local admission decisions.
Testing:
Added e2e py test
Change-Id: I2946832e0a89b077d0f3bec755e4672be2088243
Reviewed-on: http://gerrit.cloudera.org:8080/17683
Reviewed-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com>
Tested-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com>
The schedule for erasure coded data results in 3 instead
of 4 instances of the fragment with the scan. Skip the
test - we don't need special coverage for erasure coding.
Change-Id: I2bb47d89f6d6c59242f2632c481f26d93e28e33e
Reviewed-on: http://gerrit.cloudera.org:8080/16799
Reviewed-by: Aman Sinha <amsinha@cloudera.com>
Tested-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com>
This reworks the status reporting so that serialized
AggregatedRuntimeProfile objects are sent from executors
to coordinators. These profiles are substantially denser
and faster to process for higher mt_dop values. The aggregation
is also done in a single step, merging the aggregated thrift
profile from the executor directly into the final aggregated
profile, instead of converting it to an unaggregated profile
first.
The changes required were:
* A new Update() method for AggregatedRuntimeProfile that
updates the profile from a serialised AggregateRuntimeProfile
for a subset of the instances. The code is generalized from the
existing InitFromThrift() code path.
* Per-fragment reports included in the status report protobuf
when --gen_experimental_profile=true.
* Logic on the coordinator that either consumes serialized
AggregatedRuntimeProfile per fragment, when
--gen_experimental_profile=true, or consumes a serialized
RuntimeProfile per finstance otherwise.
This also adds support for event sequences and time series
in the aggregated profile, so the amount of information
in the aggregated profile is now on par with the basic profile.
We also finish off support for JSON profile. The JSON profile is
more stripped down because we do not need to round-trip profiles
via JSON and it is a much less dense profile representation.
Part 3 will clean up and improve the display of the profile.
Testing:
* Add sanity tests for aggregated runtime profile.
* Add unit tests to exercise aggregation of the various counter types
* Ran core tests.
Change-Id: Ic680cbfe94c939c2a8fad9d0943034ed058c6bca
Reviewed-on: http://gerrit.cloudera.org:8080/16057
Reviewed-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com>
Tested-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com>
