Hi Charles,
Poked around a bit. Turns out that the Cassandra client seems to work a bit
differently than a JDBC client. From the JavaDoc page: "Session instances are
thread-safe and usually a single instance is enough per application." Given
this, you might be able to cache a single connection
Hi Charles,
Excellent question. The short answer is "no", but the longer answer is "we
should fix this so the answer is yes."
The reason the answer is "no" today is that Drill uses some odd magic to match
up scan batch creators with plugins. In particular, the class of the second
argument to
Hey Paul,
In looking through the storage plugins, it seems as if the scan batch creator
is virtually identical EXCEPT for arguments passed to the RecordReader class.
I'm wondering if that could be abstracted in the Base Storage PR as well.
-- C
Hi Paul,
I did take a look at the JDBC plugin and it appeared that the code to create
the actual connection was here:
Hi Charles,
I've seen nothing like this in my travels through Drill code. My guess is that
you'd have to create a connection pool. I'd also guess that connection pool
implementations exist that could be reused.
Drill is multi-threaded: any one Drillbit could be running many concurrent
arina-ielchiieva opened a new pull request #1956: DRILL-7467: Jdbc plugin
enhancements and fixes
URL: https://github.com/apache/drill/pull/1956
[DRILL-7467](https://issues.apache.org/jira/browse/DRILL-7467): Jdbc plugin
enhancements and fixes
## Description
1. Added logic to
Arina Ielchiieva created DRILL-7530:
---
Summary: Fix class names in loggers
Key: DRILL-7530
URL: https://issues.apache.org/jira/browse/DRILL-7530
Project: Apache Drill
Issue Type: Task
Sorry didn't notice that date is 24 Jan, all fine.
On Fri, Jan 17, 2020 at 4:18 PM Igor Guzenko
wrote:
> Hello Charles,
>
> Could you please move call to the next week, since Volodymyr may not be
> present?
>
> Thanks,
> Igor
>
>
> On Thu, Jan 16, 2020 at 5:58 PM wrote:
>
>> *This event has
Hello Charles,
Could you please move call to the next week, since Volodymyr may not be
present?
Thanks,
Igor
On Thu, Jan 16, 2020 at 5:58 PM wrote:
> *This event has been changed.*
> Drill Hangout
>
> *When*
> Fri Jan 24, 2020 9:30am – 10:30am Eastern Time - New York
> *Where*
> Google
Hello Drill Devs
I have a question for you. I'm working on a storage plugin for Apache
Cassandra. I've got the queries mostly working, but I have a question.
Connections to Cassandra are meant to be opened once and remain open and so
they are "heavy". It takes about 2 seconds to connect to
arina-ielchiieva commented on issue #1955: DRILL-7491: Incorrect count()
returned for complex types in parquet
URL: https://github.com/apache/drill/pull/1955#issuecomment-575580335
@paul-rogers Igor had addressed code review comments and left one comment
explaining the background of the
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