jnturton commented on issue #2790:
URL: https://github.com/apache/drill/issues/2790#issuecomment-1500890060

   Here's a relevant discussion from the Drill mailing list. Also consider a 
single-node Drill cluster (with a ZooKeeper) using [the distributed mode Docker 
Compose scripts 
here](https://github.com/apache/drill/tree/master/distribution/docker-cluster-mode).
   
   Subject:
   Re: Running drill in background in embedded mode
   From:
   James Turton <dz...@apache.org>
   Date:
   2022/07/19, 07:28
   To:
   u...@drill.apache.org, Prabhakar Bhosale <bhosale....@gmail.com>
   
   Well if we're playing with hacks... 😄
   
   nohup drill-embedded -f <(sleep infinity) > /dev/null
   
   That needs a shell smart enough to do process substitution and avoids what I 
guess was busy wait loop in sqlline's input reader that you ran into.
   
   Back to being boring and responsible: are you sure you want to run Drill 
this way? It would be a lot more natural to launch a standalone Drillbit with 
drillbit.sh, having started a ZooKeeper somewhere beforehand.
   
   On 2022/07/19 05:30, Prabhakar Bhosale wrote:
   > Hi Luoc,
   > When I run the drill in embedded mode as foreground process, the %CPU does
   > not go beyond 1%.  for java process. Please let me know if you need any
   > additional information. thx
   >
   > Regards
   > Prabhakar
   >
   > On Tue, Jul 19, 2022 at 6:57 AM luoc <l...@apache.org> wrote:
   >
   >> Hi,
   >>
   >> What is the cost of the CPU if you are running in a front process?
   >>
   >>> On Jul 18, 2022, at 14:51, Prabhakar Bhosale <bhosale....@gmail.com>
   >> wrote:
   >>> Hi Team,
   >>> I am trying to run drill in embedded mode as background process with
   >> below
   >>> command
   >>> nohup sh drill-embedded >/dev/null 2>&1 &
   >>>
   >>> My observation is that it takes too much CPU. After starting drill by
   >> above
   >>> command the output of top command against java process shows %CPU
   >> anything
   >>> between 150 to 175%.
   >>>
   >>> So any recommended way to run drill in embedded mode in background?
   >> thanks
   >>> REgards
   >>> Prabhakar
   >>


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