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.