Kurt Deschler has uploaded this change for review. (
http://gerrit.cloudera.org:8080/19583
Change subject: IMPALA-11970: Add query timing display to Impala WebUI
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IMPALA-11970: Add query timing display to Impala WebUI
This change adds a chart to the Impala WebUI for displaying query
fragments and plan node timings. The chart list execution timings in
a compact form with the plan/fragment tree shown on the left side and
a Gantt chart with bars for each execution phase on the right side.
Fragments are printed in right-left order to simplify the graph display
and group dependent fragments. Plan node labels are color-coded by
fragment. The node list will scroll for large plans so that the scale and
legend always stay visible. Exchange nodes have dotted boxes that show
when rows are sent from the corresponding senders below. Additionally,
'X' and 'O' symbols are used to node where join builds arrive.
The length of each colored phase interval depicts the longest instance
time while instances that complete earlier are shown as grey lines
within the phase interval.
On the server side, the query profile handler has been modified to return
the profile JSON as a document element instead of document content as it
is for JSON profile download. This allows the profile to be accessed in
full using scripts in templates.
Dense profiles will not render correctly as they currently do not contain
the necessary timestamps. This limitation will be addressed at a later
time with corresponding changes to the dense profile.
Example output is attached to the IMPALA-11970 ticket
Testing:
Manual validation of rendering using TPC-H and TPC-DS queries
Will look into adding tests to test_web_pages.py and
test_observability.py in a subsequent revision
Change-Id: I8b5826107af0f5a7fe306cb986a875cff261d9db
---
M be/src/service/impala-http-handler.cc
M be/src/service/impala-http-handler.h
M be/src/service/impala-server.cc
M be/src/util/runtime-profile.cc
M www/query_detail_tabs.tmpl
A www/query_timing.tmpl
6 files changed, 459 insertions(+), 14 deletions(-)
git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/83/19583/1
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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: I8b5826107af0f5a7fe306cb986a875cff261d9db
Gerrit-Change-Number: 19583
Gerrit-PatchSet: 1
Gerrit-Owner: Kurt Deschler <[email protected]>
