As long as the connection stays up yes data gets fine across 
In pg_stat_activity I see the node ip address where tail -f piped into psql 
happens



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> On Mar 27, 2018, at 6:03 PM, Adrian Klaver <adrian.kla...@aklaver.com> wrote:
> 
>> On 03/27/2018 03:36 PM, armand pirvu wrote:
>> Hi all
>> I have a process of some data manipulation and ultimate transfer to a 
>> postgres database
>> A DML statement gest concoted with the transformed data and pusshed into a 
>> named pipe
>> The named pipe is tailed -f in the background like this
>> nohup $SHELL <<EOF &
>> tail -f /u1/sys_admin/dba/mypipe.fifo | psql -U csidba -d repdb -h rephost
>> EOF
>> All good BUT I do notice every say 10 min although I see the tail and psql 
>> processes in the ps output, looking in pg_stat_activity there is really 
>> nothing the host I run the nohuped tail
> 
> Could it be that pg_stat_activity shows nothing because the DML has completed 
> when you look?
> 
> Does the data find its way into the database?
> 
>> Any suggestions how to approach this/make it better/monitor ?
>> Thanks
>> -- Armand
> 
> 
> -- 
> Adrian Klaver
> adrian.kla...@aklaver.com

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