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* pg_basebackup state?
@ 2015-07-02 16:39 Ray Stell <stellr@vt.edu>
0 siblings, 3 replies; 5+ messages in thread
From: Ray Stell @ 2015-07-02 16:39 UTC (permalink / raw)
To: pgsql-admin
I need help determining the state of the pg_basebackup command. This
works command works on other hosts and I make a connection as recorded
in the postmaster log:
2015-07-02 12:10:53 EDT,0,authentication LOG: replication connection
authorized: user=rep
the process is running:
> ps -ef | grep pg_base
pg 32600 11558 0 12:10 pts/1 00:00:00 pg_basebackup -D
basebackup/ --xlog --format=t -P -U rep
pg 32601 1473 0 12:10 ? 00:00:00 postgres: wal sender
process rep [local] sending backup "pg_basebackup base backup"
but no data is written. Looks like wal sender is hurt. max_wal_senders
= 3, I wonder if this is the reason for the stall. How to eval if this
is set to low? Thanks.
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^ permalink raw reply [nested|flat] 5+ messages in thread
* Re: pg_basebackup state?
@ 2015-07-02 16:44 Ray Stell <stellr@vt.edu>
parent: Ray Stell <stellr@vt.edu>
2 siblings, 0 replies; 5+ messages in thread
From: Ray Stell @ 2015-07-02 16:44 UTC (permalink / raw)
To: pgsql-admin
On 7/2/15 12:39 PM, Ray Stell wrote:
> I need help determining the state of the pg_basebackup command. This
> works command works on other hosts and I make a connection as recorded
> in the postmaster log:
>
> 2015-07-02 12:10:53 EDT,0,authentication LOG: replication connection
> authorized: user=rep
>
> the process is running:
> > ps -ef | grep pg_base
> pg 32600 11558 0 12:10 pts/1 00:00:00 pg_basebackup -D
> basebackup/ --xlog --format=t -P -U rep
> pg 32601 1473 0 12:10 ? 00:00:00 postgres: wal sender
> process rep [local] sending backup "pg_basebackup base backup"
>
> but no data is written. Looks like wal sender is hurt.
> max_wal_senders = 3, I wonder if this is the reason for the stall. How
> to eval if this is set to low? Thanks.
v 9.4.4, I meant to include.
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^ permalink raw reply [nested|flat] 5+ messages in thread
* Re: pg_basebackup state?
@ 2015-07-02 16:50 Joshua D. Drake <jd@commandprompt.com>
parent: Ray Stell <stellr@vt.edu>
2 siblings, 1 reply; 5+ messages in thread
From: Joshua D. Drake @ 2015-07-02 16:50 UTC (permalink / raw)
To: Ray Stell <stellr@vt.edu>; pgsql-admin
On 07/02/2015 09:39 AM, Ray Stell wrote:
>
> I need help determining the state of the pg_basebackup command. This
> works command works on other hosts and I make a connection as recorded
> in the postmaster log:
>
> 2015-07-02 12:10:53 EDT,0,authentication LOG: replication connection
> authorized: user=rep
>
> the process is running:
> > ps -ef | grep pg_base
> pg 32600 11558 0 12:10 pts/1 00:00:00 pg_basebackup -D
> basebackup/ --xlog --format=t -P -U rep
> pg 32601 1473 0 12:10 ? 00:00:00 postgres: wal sender
> process rep [local] sending backup "pg_basebackup base backup"
>
> but no data is written. Looks like wal sender is hurt. max_wal_senders
> = 3, I wonder if this is the reason for the stall. How to eval if this
> is set to low? Thanks.
It may be that pg_basebackup is waiting for a checkpoint to complete.
Try adding -cfast.
JD
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^ permalink raw reply [nested|flat] 5+ messages in thread
* Re: pg_basebackup state?
@ 2015-07-02 16:59 Guillaume Lelarge <guillaume@lelarge.info>
parent: Ray Stell <stellr@vt.edu>
2 siblings, 0 replies; 5+ messages in thread
From: Guillaume Lelarge @ 2015-07-02 16:59 UTC (permalink / raw)
To: Ray Stell <stellr@vt.edu>; +Cc: pgsql-admin
Le 2 juil. 2015 6:41 PM, "Ray Stell" <stellr@vt.edu> a écrit :
>
> I need help determining the state of the pg_basebackup command. This
works command works on other hosts and I make a connection as recorded in
the postmaster log:
>
> 2015-07-02 12:10:53 EDT,0,authentication LOG: replication connection
authorized: user=rep
>
> the process is running:
> > ps -ef | grep pg_base
> pg 32600 11558 0 12:10 pts/1 00:00:00 pg_basebackup -D
basebackup/ --xlog --format=t -P -U rep
> pg 32601 1473 0 12:10 ? 00:00:00 postgres: wal sender
process rep [local] sending backup "pg_basebackup base backup"
>
> but no data is written. Looks like wal sender is hurt. max_wal_senders =
3, I wonder if this is the reason for the stall. How to eval if this is set
to low? Thanks.
>
You wouldn't have the wal sender if it was too low.
^ permalink raw reply [nested|flat] 5+ messages in thread
* Re: pg_basebackup state?
@ 2015-07-02 17:01 Ray Stell <stellr@vt.edu>
parent: Joshua D. Drake <jd@commandprompt.com>
0 siblings, 0 replies; 5+ messages in thread
From: Ray Stell @ 2015-07-02 17:01 UTC (permalink / raw)
To: Joshua D. Drake <jd@commandprompt.com>; pgsql-admin
On 7/2/15 12:50 PM, Joshua D. Drake wrote:
>
> On 07/02/2015 09:39 AM, Ray Stell wrote:
>>
>> I need help determining the state of the pg_basebackup command. This
>> works command works on other hosts and I make a connection as recorded
>> in the postmaster log:
>>
>> 2015-07-02 12:10:53 EDT,0,authentication LOG: replication connection
>> authorized: user=rep
>>
>> the process is running:
>> > ps -ef | grep pg_base
>> pg 32600 11558 0 12:10 pts/1 00:00:00 pg_basebackup -D
>> basebackup/ --xlog --format=t -P -U rep
>> pg 32601 1473 0 12:10 ? 00:00:00 postgres: wal sender
>> process rep [local] sending backup "pg_basebackup base backup"
>>
>> but no data is written. Looks like wal sender is hurt. max_wal_senders
>> = 3, I wonder if this is the reason for the stall. How to eval if this
>> is set to low? Thanks.
>
> It may be that pg_basebackup is waiting for a checkpoint to complete.
> Try adding -cfast.
>
> JD
yep, that got it. thanks.
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^ permalink raw reply [nested|flat] 5+ messages in thread
end of thread, other threads:[~2015-07-02 17:01 UTC | newest]
Thread overview: 5+ messages (download: mbox mbox.gz follow: Atom feed)
-- links below jump to the message on this page --
2015-07-02 16:39 pg_basebackup state? Ray Stell <stellr@vt.edu>
2015-07-02 16:44 ` Ray Stell <stellr@vt.edu>
2015-07-02 16:50 ` Joshua D. Drake <jd@commandprompt.com>
2015-07-02 17:01 ` Ray Stell <stellr@vt.edu>
2015-07-02 16:59 ` Guillaume Lelarge <guillaume@lelarge.info>
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