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[Parth Chandra]

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[Jacques Nadeau]

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Jacques Nadeau
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[Jason Altekruse]

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[Parth Chandra]

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[Sudheesh Katkam]

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[Parth Chandra]

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Fwd: Drill Hangout starting now

[Venki Korukanti]

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Re: Drill Hangout starting now

[Parth Chandra]

Join us here:
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>

Drill Hangout minutes - 2015-10-06 Re: Drill Hangout starting now

[Parth Chandra]

Drill Hangout 2015-10-06

Attendees: Aman, Andries, Daniel, Kris, Charlie, Julien, Jacques, Jason,
Jinfeng, Matt, Parth, Sudheesh, Venki


   1.

   Matt hitting issues with Information Schema queries against Hive. Will
   connect with Venki on Slack to resolve.
   2.

   Julien reported that he's working on speeding up building and running
   tests, noting that build-time code generation runs twice and local
   Drillbits for testing take 3 second to shut down.
   3.

   Parth mentioned an off-by-one bug in Parquet reading and that he will
   add more Parquet reading tests as part of the fix.
   4.

   Aman reported a regression in performance while trying metadata caching
   with 400K files. This is being investigated.
   5.

   Daniel, Jacques, and Sudeesh discussed issues underlying DRILL-2288,
   such as the ScanBatch.next() return value (IterOutcome) contract, handling
   empty JSON files, handling zero-row sources that still have schemas, how to
   limit the DRILL-2288 fix to avoid needing to rework lots of downstream
   code, etc.
   6.

   Sudheesh had various updates - Limit 0 and Limit 1 queries. Jacques
   suggestion to handle Limit 0 queries on schema aware systems to the
   planning phase. Perf tests on the RPC processing offloading seem to show
   higher memory consumption. This may simply be due to allowing more
   concurrent queries as result of the patch. Perf tests reveal issues on
   local data tunnel changes but these may be existing problems that are now
   showing up as a result of faster local data processing. Question to be
   resolved - should we merge these anyway?
   7.

   Jason helping address some recent issues with flatten involving large
   number of repeated values.
   8.

   We unanimously volunteered Sudheesh to work on the performance cluster.




On Tue, Oct 6, 2015 at 10:06 AM, Parth Chandra  wrote:

>
>
> Join us here:
>> https://plus.google.com/hangouts/_/event/ci4rdiju8bv04a64efj5fedd0lc
>>
>
>