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* Reg: connection is getting closed when doing select count(*)
@ 2020-03-03 09:49 Raj kumar <rajkumar820999@gmail.com>
2020-03-03 14:43 ` Re: Reg: connection is getting closed when doing select count(*) Tom Lane <tgl@sss.pgh.pa.us>
0 siblings, 1 reply; 3+ messages in thread
From: Raj kumar @ 2020-03-03 09:49 UTC (permalink / raw)
To: pgsql-admin@lists.postgresql.org
*I have installed Postgres12 in my Macbook. I have loaded data into the
database using pgbench. When I try to execute the command below, I am not
getting the output. Instead, connection is getting closed. Command and
errors are written below.*
*More Information:*
*I am the only one using the database with default parameters in
postgresql.conf.*
*Command:*
(base) FVFZF06NNY1J:data rkuma803$ psql -U rkuma803 -d postgres
psql (12.2)
Type "help" for help.
postgres=# \c pgbench
You are now connected to database "pgbench" as user "rkuma803".
pgbench=# *select count(*) from pgbench_accounts; *
server closed the connection
unexpectedly
This probably means the server terminated abnormally
before or while processing the request.
The connection to the server was lost. Attempting reset: Failed.
!>
!> ^D\q
(base)
*Error from DB logs,*
2020-03-03 14:59:20.868 IST [51374] STATEMENT: select count(*) from
pgbench_accounts;
2020-03-03 14:59:25.852 IST [51363] LOG: server process (PID 51386) was
terminated by signal 9: Killed: 9
2020-03-03 14:59:25.852 IST [51363] DETAIL: Failed process was running:
select count(*) from pgbench_accounts;
2020-03-03 14:59:25.852 IST [51363] LOG: terminating any other active
server processes
2020-03-03 14:59:25.854 IST [51369] WARNING: terminating connection
because of crash of another server process
2020-03-03 14:59:25.854 IST [51369] DETAIL: The postmaster has commanded
this server process to roll back the current transaction and exit, because
another server process exited abnormally and possibly corrupted shared
memory.
2020-03-03 14:59:25.854 IST [51369] HINT: In a moment you should be able
to reconnect to the database and repeat your command.
^ permalink raw reply [nested|flat] 3+ messages in thread
* Re: Reg: connection is getting closed when doing select count(*)
2020-03-03 09:49 Reg: connection is getting closed when doing select count(*) Raj kumar <rajkumar820999@gmail.com>
@ 2020-03-03 14:43 ` Tom Lane <tgl@sss.pgh.pa.us>
2020-03-03 19:37 ` Re: Reg: connection is getting closed when doing select count(*) Raj kumar <rajkumar820999@gmail.com>
0 siblings, 1 reply; 3+ messages in thread
From: Tom Lane @ 2020-03-03 14:43 UTC (permalink / raw)
To: Raj kumar <rajkumar820999@gmail.com>; +Cc: pgsql-admin@lists.postgresql.org
Raj kumar <rajkumar820999@gmail.com> writes:
> *I have installed Postgres12 in my Macbook. I have loaded data into the
> database using pgbench. When I try to execute the command below, I am not
> getting the output. Instead, connection is getting closed. Command and
> errors are written below.*
> 2020-03-03 14:59:20.868 IST [51374] STATEMENT: select count(*) from
> pgbench_accounts;
> 2020-03-03 14:59:25.852 IST [51363] LOG: server process (PID 51386) was
> terminated by signal 9: Killed: 9
Signal 9 is pretty unusual. I'm going to guess that you used EDB's
installer and the problem is with JIT compilation ... does
"set jit = off" fix it? If so, that's a known bug that's being
worked on, see
https://www.postgresql.org/message-id/CA%2BOCxoz0bWi%2BR2WpocfkD20Lgrg69z1jQ_SZd-zmdzHW0zt%2Bbg%40ma...
regards, tom lane
^ permalink raw reply [nested|flat] 3+ messages in thread
* Re: Reg: connection is getting closed when doing select count(*)
2020-03-03 09:49 Reg: connection is getting closed when doing select count(*) Raj kumar <rajkumar820999@gmail.com>
2020-03-03 14:43 ` Re: Reg: connection is getting closed when doing select count(*) Tom Lane <tgl@sss.pgh.pa.us>
@ 2020-03-03 19:37 ` Raj kumar <rajkumar820999@gmail.com>
0 siblings, 0 replies; 3+ messages in thread
From: Raj kumar @ 2020-03-03 19:37 UTC (permalink / raw)
To: Tom Lane <tgl@sss.pgh.pa.us>; +Cc: pgsql-admin@lists.postgresql.org
Hi Tom,
Your guess is correct. I did installation using EDB's installer. *After
turning off JIT, the query works as expected,* attached the screenshot.
Can I expect same issue if I run on Linux server or with other installation
methods? Any suggestions would be great.
Thanks for troubleshooting.
Thanks ,
Raj
On Tue, Mar 3, 2020 at 8:13 PM Tom Lane <tgl@sss.pgh.pa.us> wrote:
> Raj kumar <rajkumar820999@gmail.com> writes:
> > *I have installed Postgres12 in my Macbook. I have loaded data into the
> > database using pgbench. When I try to execute the command below, I am not
> > getting the output. Instead, connection is getting closed. Command and
> > errors are written below.*
>
> > 2020-03-03 14:59:20.868 IST [51374] STATEMENT: select count(*) from
> > pgbench_accounts;
> > 2020-03-03 14:59:25.852 IST [51363] LOG: server process (PID 51386) was
> > terminated by signal 9: Killed: 9
>
> Signal 9 is pretty unusual. I'm going to guess that you used EDB's
> installer and the problem is with JIT compilation ... does
> "set jit = off" fix it? If so, that's a known bug that's being
> worked on, see
>
>
> https://www.postgresql.org/message-id/CA%2BOCxoz0bWi%2BR2WpocfkD20Lgrg69z1jQ_SZd-zmdzHW0zt%2Bbg%40ma...
>
> regards, tom lane
>
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2020-03-03 09:49 Reg: connection is getting closed when doing select count(*) Raj kumar <rajkumar820999@gmail.com>
2020-03-03 14:43 ` Tom Lane <tgl@sss.pgh.pa.us>
2020-03-03 19:37 ` Raj kumar <rajkumar820999@gmail.com>
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