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From: Ron <ronljohnsonjr@gmail.com>
To: pgsql-admin@lists.postgresql.org
Subject: Re: pgdump slowness
Date: Thu, 12 Sep 2019 11:48:28 -0500
Message-ID: <d1f02b8c-292e-4ae1-3480-ebbc30ce8049@gmail.com> (raw)
In-Reply-To: <CAAj4MFFUk_JjCbK3yXrQGyMx0SqrOcytXitjTmKDL0ip=rm77Q@mail.gmail.com>
References: <CAAj4MFGc3voQYd850tRH5QeT=3MZ3tmz4QS2Riaz12cHU5RVWg@mail.gmail.com>
	<CAG1ps1yyxE9YfYsODe0oYCJ0Ovxmk=30Oeug=TL7vbGscRvw4A@mail.gmail.com>
	<CAAj4MFFUk_JjCbK3yXrQGyMx0SqrOcytXitjTmKDL0ip=rm77Q@mail.gmail.com>

IO load?  Slow disks, low channel bandwidth, etc?

Is this a VM on an over-subscribed host?

On 9/12/19 10:54 AM, Dhandapani Shanmugam wrote:
> Hi Nikhil,
>
> I don't see any resource issues on server. the cpu shows 90% idle and the 
> load of the server is very normal. I am using 6 parallel process.
>
> -D
>
> On Thu, Sep 12, 2019 at 9:22 PM nikhil raj <nikhilraj474@gmail.com 
> <mailto:nikhilraj474@gmail.com>> wrote:
>
>     Hi Dhandapani,
>
>     That is the system  configuration and version  and how many parallel
>     job you are running in the command.
>
>     Please let know the details.
>
>     On Thu, 12 Sep 2019, 9:05 pm Dhandapani Shanmugam,
>     <postgresql95@gmail.com <mailto:postgresql95@gmail.com>> wrote:
>
>         Hi Guys,
>
>         We are having wired issue. pg_dump taking more time to backup 320
>         GB of table,the table has bytea data type with TOAST table
>         associated it. Please let me know, if this is the expected
>         behavior of pg_dump or do i need to tune any of the parameters.  I
>         tried to run pg_dump with parallel -j option , still no
>         improvement and there is no lock on the table as well. any inputs
>         are welcome
>
>         -D
>

-- 
Angular momentum makes the world go 'round.

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