Re: cannot drop replication slot if server is running in single-user mode

On Tue, Mar 6, 2018 at 06:59:33PM +0530, tushar wrote:
> Hi,
>
> I found that if server is running in single-user mode , there we can create
> replication slot but cannot drop it .
>
> backend> SELECT * FROM pg_create_physical_replication_slot('p');
> 2018-03-06 13:20:03.441 GMT [14869] LOG:  statement: SELECT * FROM
> pg_create_physical_replication_slot('p');
>
>      1: slot_name    (typeid = 19, len = 64, typmod = -1, byval = f)
>      2: lsn    (typeid = 3220, len = 8, typmod = -1, byval = t)
>     ----
>      1: slot_name = "p"    (typeid = 19, len = 64, typmod = -1, byval = f)
>     ----
> backend> select pg_drop_replication_slot('p');
> 2018-03-06 13:20:24.390 GMT [14869] LOG:  statement: select
> pg_drop_replication_slot('p');
>
>      1: pg_drop_replication_slot    (typeid = 2278, len = 4, typmod = -1,
> byval = t)
>     ----
> 2018-03-06 13:20:24.391 GMT [14869] ERROR:  epoll_ctl() failed: Bad file
> descriptor
> 2018-03-06 13:20:24.391 GMT [14869] STATEMENT:  select
> pg_drop_replication_slot('p');

I can confirm this bug exists in single-user mode.

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Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://enterprisedb.com

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