RE: Index Gin Creation is taking long time.. - Mailing list pgsql-general

From Steven Winfield
Subject RE: Index Gin Creation is taking long time..
Date
Msg-id E9FA92C2921F31408041863B74EE4C2001AEFC4C49@CCPMAILDAG03.cantab.local
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In response to Index Gin Creation is taking long time..  (Anto Aravinth <anto.aravinth.cse@gmail.com>)
List pgsql-general

 

From: Anto Aravinth [mailto:anto.aravinth.cse@gmail.com]
Sent: 28 June 2018 11:34
To: pgsql-generallists.postgresql.org
Subject: Index Gin Creation is taking long time..

 

Hello, 

 

I'm trying to create an index:

 

create index search_idx on so2 using gin (to_tsvector('english',posts));

 

Looks like its running atleast for 8hours :( Totally I have 47M records in so2. Not sure why its taking so long time. 

 

Any idea or tips to debug while the index creation is going on?

 

Thanks, 

Anto. 

 

 

·         Try increasing maintenance_work_mem and restarting? https://www.postgresql.org/docs/10/static/gin-tips.html

·         “top -p <pid>” can show you if you are CPU or I/O bound.

·         “perf top -p <pid>” on the backend that is doing the index creation is a good way to see where it is spending time.

 

Good luck!

 

Steven.



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