Hello Alexey Serbin, Ashwani Raina, Yingchun Lai, Yifan Zhang, Kudu Jenkins,

I'd like you to reexamine a change. Please visit

    http://gerrit.cloudera.org:8080/19407

to look at the new patch set (#7).

Change subject: [web] add maintenance op statistics information on web pages 
for data_retained_bytes
......................................................................

[web] add maintenance op statistics information on web pages for 
data_retained_bytes

MaintenanceOpStats collects statistics about 'data_retained_bytes_',
which means amount of disk capacity in data blocks that would be freed if
current maintenence operation ran. But the protobuf file has no such
information, so it is not shown on web pages.

This patch adds a field in the protobuf file and updates the embedded web server
to show the retained bytes for a maintenance operation. Sample screenshot of
the maintenance manager page can be found here:
https://github.com/shenxingwuying/kudu/blob/dev/flyline/screenshot/data_retained.png

Change-Id: Iac8f0307705d57cea48901102b170c88d73d8c2e
---
M src/kudu/integration-tests/webserver-stress-itest.cc
M src/kudu/tserver/tserver_path_handlers.cc
M src/kudu/util/maintenance_manager.cc
M src/kudu/util/maintenance_manager.proto
M www/maintenance-manager.mustache
5 files changed, 28 insertions(+), 1 deletion(-)


  git pull ssh://gerrit.cloudera.org:29418/kudu refs/changes/07/19407/7
--
To view, visit http://gerrit.cloudera.org:8080/19407
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Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-MessageType: newpatchset
Gerrit-Change-Id: Iac8f0307705d57cea48901102b170c88d73d8c2e
Gerrit-Change-Number: 19407
Gerrit-PatchSet: 7
Gerrit-Owner: Yuqi Du <[email protected]>
Gerrit-Reviewer: Alexey Serbin <[email protected]>
Gerrit-Reviewer: Ashwani Raina <[email protected]>
Gerrit-Reviewer: Kudu Jenkins (120)
Gerrit-Reviewer: Yifan Zhang <[email protected]>
Gerrit-Reviewer: Yingchun Lai <[email protected]>
Gerrit-Reviewer: Yuqi Du <[email protected]>

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