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How to set query timeout when using Presto CLI?


How to set query timeout when using Presto CLI?

By : Jordan
Date : October 25 2020, 07:10 AM
With these it helps You can set query time limit using query_max_execution_time session property.
code :
SET SESSION query_max_execution_time = '30s';
presto-cli --session query_max_execution_time=30s ... 
$ presto-cli --session query_max_execution_time=15s \
    --execute "select count(distinct regexp_extract(comment, '([a-zA-Z ]+)+$')) from tpch.tiny.lineitem"

Query failed: Query exceeded the maximum execution time limit of 15.00s


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PRESTO + dose presto cordinator can manage 160 workers node?

PRESTO + dose presto cordinator can manage 160 workers node?


By : Jimmy Janisson
Date : March 29 2020, 07:55 AM
I wish this helpful for you TL;DR in general, coordinator can easily handle much more worker nodes than 160, but your milage may vary.
Longer version Presto coordinator can manage 1000 workers. However, you're asking for a coordinator with particular memory and CPU resources. The answer is -- it depends.
Sqoop Presto using Tetadata Presto Driver - ParseError

Sqoop Presto using Tetadata Presto Driver - ParseError


By : user5890936
Date : March 29 2020, 07:55 AM
wish of those help Hive connector supports only READ_UNCOMMITTED while it looks like sqoop is requesting READ_COMMITTED which cannot be supported. If could change sqoop to READ_UNCOMMITED then it should work.
Presto DB + what we can do in case of some presto workers are down + auto start

Presto DB + what we can do in case of some presto workers are down + auto start


By : Seth Paredis
Date : March 29 2020, 07:55 AM
wish helps you This is something we (Presto community) are currently working on, please follow: High Availability. We are also invite you to put your comments there, so we could verify if your use case will be covered.
Also, if you are using AWS for Presto you might to consider checking StarburstData offering for Presto Coordinator High Availability
Google DataProc Presto: how to write Presto query results to google cloud storage?

Google DataProc Presto: how to write Presto query results to google cloud storage?


By : user6018356
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further I have a DataProc cluster with Presto installed as an optional component. My data is stored in google cloud storage (GCS) and I'm able to query it with Presto. However, I didn't find a way to write the query result back to GCS. I can write to hdfs if I logged in to master node and run Presto commands from there, but it doesn't recognize any GCS location. , You need to create a Hive external table backed by GCS, for example:
code :
gcloud dataproc jobs submit hive \
    --cluster <cluster> \
    --execute "
        CREATE EXTERNAL TABLE my_table(id  INT, name  STRING)
        STORED AS PARQUET
        location 'gs://<bucket>/<dir>/';"
after modified the config files in /etc/presto/conf, how to restart presto-server

after modified the config files in /etc/presto/conf, how to restart presto-server


By : Jaime Oliver
Date : October 13 2020, 07:00 PM
will be helpful for those in need In aws emr, after modified the config file in /etc/presto/conf, how can we restart presto-server? Just on master node or on all nodes? , On EMR you can restart Presto with
code :
sudo stop presto
sudo start presto
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