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From Paul Rogers <par0...@yahoo.com.INVALID>
Subject Re: Apache Drill Support concurrent parallel Request
Date Wed, 08 Apr 2020 19:02:16 GMT
Hi Ramasamy,

Let's define some terms. By "parallel requests" do you mean multiple people submitting queries
at the same time? If so, then Drill handles this just fine: Drill is designed to run multiple
queries from multiple users concurrently.

There is a caveat. Many people run Drill in embedded mode when they get started. Embedded
mode is a single user, single-machine setup that is great for testing Drill, exploring small
data sets and so on. However, to support multiple concurrent queries, the proper way to run
Drill is as a service, preferably across multiple machines. Further, if you are running a
cluster of two or more machines, you need some kind of distributed file system: S3, Hadoop,

Once you start running concurrent queries, memory becomes an important consideration, especially
if your JSON files are large and you are doing memory-intensive operations such as sorting
and joins. The Drill documentation explains the correct configuration steps.

- Paul


    On Wednesday, April 8, 2020, 11:00:14 AM PDT, Ramasamy Javakar <ramasamy@ezeeinfosolutions.com>
 Hi, I did an analytics web application on drill, data set in json file.  We
are facing issues while getting multiple parallel requests. Does Apache
Drill support concurrent requests?. Please let me know

Thanks & Regards

Product Manager
EzeeInfo Cloud Solutions
+91 95000 07269
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