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Re: Perfomance issue. statement in the log file..

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On 02/23/2016 11:57 AM, Bala Venkat wrote:
Dear All -

        We are seeing lot of these statements in the log file. We have 2
functions .  Submit and update .  Between submit and update which will
int the process, the messages are appearning. The process is very slow.
We don't know if this the main reason for the performance issue

Can you please help ? if any one has come across  this issue and
resolved. Appreciate your time.

Help will require more information. For future reference you may want to take a look at:

https://wiki.postgresql.org/wiki/Guide_to_reporting_problems

In mean time and as a starting point:

What version of OS and Postgres?

What client is generating the queries?

Define slow and how are you determining it?

Can you show the contents of the two functions?


2016-02-23 18:11:24 GMT IpAddress(33946)  user=UserName , db=testLOG:
execute <unnamed>: SELECT 1  FROM pg_catalog.pg_attrdef  WHERE adrelid =
$1 AND adn
um = $2   AND pg_catalog.pg_get_expr(adbin, adrelid)       LIKE '%nextval(%'
2016-02-23 18:11:24 GMT IpAddress(33946)  user=UserName ,
db=testDETAIL:  parameters: $1 = '3003958', $2 = '1'
2016-02-23 18:11:24 GMT IpAddress(33946)  user=UserName , db=testLOG:
duration: 0.059 ms
2016-02-23 18:11:24 GMT IpAddress(33946)  user=UserName , db=testLOG:
duration: 0.117 ms
2016-02-23 18:11:24 GMT IpAddress(33946)  user=UserName , db=testLOG:
duration: 1.087 ms
2016-02-23 18:11:24 GMT IpAddress(33946)  user=UserName , db=testLOG:
execute <unnamed>: SELECT attnotnull FROM pg_catalog.pg_attribute WHERE
attrelid =
$1 AND attnum = $2
2016-02-23 18:11:24 GMT IpAddress(33946)  user=UserName ,
db=testDETAIL:  parameters: $1 = '3003958', $2 = '1'
2016-02-23 18:11:24 GMT IpAddress(33946)  user=UserName , db=testLOG:
duration: 0.037 ms
2016-02-23 18:11:24 GMT IpAddress(33946)  user=UserName , db=testLOG:
duration: 0.081 ms
2016-02-23 18:11:24 GMT IpAddress(33946)  user=UserName , db=testLOG:
duration: 0.120 ms
2016-02-23 18:11:24 GMT IpAddress(33946)  user=UserName , db=testLOG:
execute <unnamed>: SELECT 1  FROM pg_catalog.pg_attrdef  WHERE adrelid =
$1 AND adn
um = $2   AND pg_catalog.pg_get_expr(adbin, adrelid)       LIKE '%nextval(%'
2016-02-23 18:11:24 GMT IpAddress(33946)  user=UserName ,
db=testDETAIL:  parameters: $1 = '3003958', $2 = '2'
2016-02-23 18:11:24 GMT IpAddress(33946)  user=UserName , db=testLOG:
duration: 0.028 ms
2016-02-23 18:11:24 GMT IpAddress(33946)  user=UserName , db=testLOG:
duration: 0.058 ms
2016-02-23 18:11:24 GMT IpAddress(33946)  user=UserName , db=testLOG:
duration: 0.163 ms
2016-02-23 18:11:24 GMT IpAddress(33946)  user=UserName , db=testLOG:
execute <unnamed>: SELECT attnotnull FROM pg_catalog.pg_attribute WHERE
attrelid =
$1 AND attnum = $2
2016-02-23 18:11:24 GMT IpAddress(33946)  user=UserName ,
db=testDETAIL:  parameters: $1 = '3003958', $2 = '2'
2016-02-23 18:11:24 GMT IpAddress(33946)  user=UserName , db=testLOG:
duration: 0.032 ms
2016-02-23 18:11:24 GMT IpAddress(33946)  user=UserName , db=testLOG:
duration: 0.074 ms
2016-02-23 18:11:24 GMT IpAddress(33946)  user=UserName , db=testLOG:
duration: 0.118 ms
2016-02-23 18:11:24 GMT IpAddress(33946)  user=UserName , db=testLOG:
execute <unnamed>: SELECT 1  FROM pg_catalog.pg_attrdef  WHERE adrelid =
$1 AND adn
um = $2   AND pg_catalog.pg_get_expr(adbin, adrelid)       LIKE '%nextval(%'
2016-02-23 18:11:24 GMT IpAddress(33946)  user=UserName ,
db=testDETAIL:  parameters: $1 = '3003958', $2 = '3'
2016-02-23 18:11:24 GMT IpAddress(33946)  user=UserName , db=testLOG:
duration: 0.027 ms
2016-02-23 18:11:24 GMT IpAddress(33946)  user=UserName , db=testLOG:
duration: 0.058 ms
2016-02-23 18:11:24 GMT IpAddress(33946)  user=UserName , db=testLOG:
duration: 0.161 ms
2016-02-23 18:11:24 GMT IpAddress(33946)  user=UserName , db=testLOG:
execute <unnamed>: SELECT attnotnull FROM pg_catalog.pg_attribute WHERE
attrelid =
$1 AND attnum = $2
2016-02-23 18:11:24 GMT IpAddress(33946)  user=UserName ,
db=testDETAIL:  parameters: $1 = '3003958', $2 = '3'
2016-02-23 18:11:24 GMT IpAddress(33946)  user=UserName , db=testLOG:
duration: 0.032 ms
2016-02-23 18:11:24 GMT 172.26.22.145(52330)  user=postgres ,
db=testLOG:  duration: 1210.331 ms
2016-02-23 18:11:24 GMT IpAddress(33946)  user=UserName , db=testLOG:
duration: 1.230 ms
2016-02-23 18:11:24 GMT IpAddress(33946)  user=UserName , db=testLOG:
duration: 0.083 ms


--
Adrian Klaver
adrian.klaver@xxxxxxxxxxx


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