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From "Colin P. McCabe" <>
Subject Re: Apache Phoenix Tracing Dashboard-jira issue PHOENIX 1118
Date Wed, 22 Apr 2015 19:01:11 GMT
Hi Nishani,

It's great to see more interest in HTrace and Phoenix!

One thing I think you might be interested in is that, as Lewis and
others have mentioned, there is a project in the works to come up with
a web UI for HTrace.  Masatake, May, Abe, and myself had a meeting
about the HTrace GUI a few weeks ago, and came up with some ideas.
Keep in mind that Phoenix is just one project that uses HTrace.  We
also have HDFS, HBase, Accumulo, and others.  So a web UI in HTrace
itself would help more people than a web UI in just Phoenix.

There is a lot of code to be written on the HTrace GUI... what we have
now is just a beginning, I think.  I think it would be a great project
if you're interested.


On Wed, Apr 22, 2015 at 1:52 AM, Ayola Jayamaha <> wrote:
> Hi All,
> I'm a University Student applying for the GSOC Project [1] Dashboard for
> tracing information in Phoenix. In Apache Phoenix, HTrace is used to
> provide request level trace information.
> Below are the trace information found in Phoenix Table.
>    -       trace_id
>    -       parent_id
>    -       span_id
>    -       description
>    -       start_time
>    -       end_time
>    -       hostname
>    -       tags.count
>    -       annotations.count
> HTrace library is integrated with HBase tracing utilities. And HTrace
> latest release 3.2.0 will include many visualization improvements[2].
> You can find the Mock Up UI [3] which gives advance search capabilities for
> trace attributes and slider functionality[4] to view the trace for the
> selected time period with zooming capabilities and parent trace info on
> display.
> A web UI is the solution proposed and a dashboard will show the required
> information.
> Can the Phoenix SYSTEM.TRACING_STATS table be made available in the htrace
> web gui? Which will further cater for the needs of visualizing the trace
> info as the Mock Up UIs suggest.
> Pagination will be tackled in the visualization of the tracing.
> [1]
> [2]
> [3]
> [4]
> --
> Best Regards,
> Ayola Jayamaha

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