Re: pg_wal keeps growing

From: Alex Balashov <abalashov(at)evaristesys(dot)com>
To: pgsql-admin(at)lists(dot)postgresql(dot)org
Subject: Re: pg_wal keeps growing
Date: 2021-02-03 16:00:17
Message-ID: BCAE1B1C-D694-4CE3-9EEF-ED610BD3F9B1@evaristesys.com
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Are you sure you don’t have a replication slot with no replication consumer connected to it?

Replication slots cause WALs to accumulate until someone connects to the slot and downloads them.


Sent from my iPad

> On Feb 3, 2021, at 10:53 AM, Yambu <hyambu(at)gmail(dot)com> wrote:
>
> 
> Hello
>
> My pg_wal directory keeps growing in size. Im using Pg v10
>
> Currently its at 53GB in size.
>
> Below are my settings
>
> select name,setting,unit from pg_settings where name ilike '%wal%';
> name | setting | unit
> ------------------------------+-----------+------
> max_wal_senders | 10 |
> max_wal_size | 1024 | MB
> min_wal_size | 80 | MB
> wal_block_size | 8192 |
> wal_buffers | 2048 | 8kB
> wal_compression | off |
> wal_consistency_checking | |
> wal_keep_segments | 0 |
> wal_level | replica |
> wal_log_hints | off |
> wal_receiver_status_interval | 10 | s
> wal_receiver_timeout | 60000 | ms
> wal_retrieve_retry_interval | 5000 | ms
> wal_segment_size | 2048 | 8kB
> wal_sender_timeout | 60000 | ms
> wal_sync_method | fdatasync |
> wal_writer_delay | 200 | ms
> wal_writer_flush_after | 128 | 8kB
> (18 rows)

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