Ok is it possible to release the lock? or it is just a warning messages only?
thanks
-----Original Message-----
From: Tatsuo Ishii [mailto:ishii@sraoss.co.jp]
Sent: 06 September 2017 10:31 AM
To: Vijay Chaudhery <vijay_c@hcl.com>
Cc: pgsql-general@postgresql.org
Subject: Re: [GENERAL] Postgres logs showing error after replication
> Ok thank you,
>
> I have promoted slave server as master in postgres streaming
> replication , howerver application is working fine after promotion ,
> but getting some error messages in the postgres log (slave which
> promoted to master)
>
> what does it mean?
>
> <tag>
>>ERROR: could not obtain lock on row in relation "main_instance"
> < 2017-09-05 13:08:45.434 UTC >STATEMENT: SELECT "main_instance"."id",
> "main_instance"."uuid", "main_instance"."hostname",
> "main_instance"."created", "main_instance"."modified",
> "main_instance"."version", "main_instance"."capacity" FROM
> "main_instance" LIMIT 1 FOR UPDATE NOWAIT
Your session (transction) tried to get a row lock on the row but other session (transaction) has already gotten the row
lockon the same row.
Best regards,
--
Tatsuo Ishii
SRA OSS, Inc. Japan
English: http://www.sraoss.co.jp/index_en.php
Japanese:http://www.sraoss.co.jp
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