RE: BUG #16317: max_wal_size does not remove WAL files, cause "no space left"

>

>-----Original Message-----

>From: depesz(at)depesz(dot)com <depesz(at)depesz(dot)com>

>Sent: 2020年3月25日 23:05

>To: Fan Liu <fan(dot)liu(at)ericsson(dot)com>

>Cc: pgsql-bugs(at)lists(dot)postgresql(dot)org

>Subject: Re: BUG #16317: max_wal_size does not remove WAL files, cause "no space left"

>

>On Wed, Mar 25, 2020 at 12:26:22PM +0000, Fan Liu wrote:

>> >>postgres=# ps uwwxf | grep -C3 archive postgres-# \q ss7-db-pg-1:/ #

>> >>ps uwwxf | grep -C3 archive

>

>I asked for this ps/grep from shell of postgres. not from psql as postgres, and not from root shell.

>

>But it's not really important.

>

>can you show me:

>

>select pg_walfile_name( pg_current_wal_lsn());

>

>and then, as postgres:

>cd /var/lib/postgresql/data/pgdata/wal (or wherever wal is), and do:

>ls -l

>

>and show us the output (possiblky using some paste site).

>

>Best regards,

>

>depesz

>

Hi,

We are working on K8s. I can't connect to master node today, it start to circle reboot.

I can still connect to replica node, they are "no space left" and not working as well. But no circle reboot yet.

So, I can only provide the printout from replica node. But they should be same or close.

The part I am not understand is that WAL files are not cyclical with max_wal_size=1G, what kind of scenario will cause this?

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-rw------- 1 postgres postgres 16777216 Mar 4 14:56 000000A20000000000000005

-rw------- 1 postgres postgres 6975 Mar 4 14:27 000000A2.history

-rw------- 1 postgres postgres 16777216 Mar 4 15:47 000000A30000000000000005

-rw------- 1 postgres postgres 7019 Mar 4 14:56 000000A3.history

-rw------- 1 postgres postgres 16777216 Mar 4 15:48 000000A40000000000000005

-rw------- 1 postgres postgres 7063 Mar 4 15:47 000000A4.history

-rw------- 1 postgres postgres 16777216 Mar 4 16:24 000000A50000000000000005

-rw------- 1 postgres postgres 7107 Mar 4 15:48 000000A5.history

-rw------- 1 postgres postgres 16777216 Mar 4 16:31 000000A60000000000000005

-rw------- 1 postgres postgres 7151 Mar 4 16:24 000000A6.history

-rw------- 1 postgres postgres 16777216 Mar 4 16:33 000000A70000000000000005

-rw------- 1 postgres postgres 7195 Mar 4 16:31 000000A7.history

-rw------- 1 postgres postgres 16777216 Mar 4 16:40 000000A80000000000000005

-rw------- 1 postgres postgres 7239 Mar 4 16:33 000000A8.history

-rw------- 1 postgres postgres 16777216 Mar 4 17:00 000000A90000000000000005

-rw------- 1 postgres postgres 7283 Mar 4 16:40 000000A9.history

-rw------- 1 postgres postgres 16777216 Mar 4 17:20 000000AA0000000000000005

-rw------- 1 postgres postgres 7327 Mar 4 17:00 000000AA.history

-rw------- 1 postgres postgres 16777216 Mar 4 17:47 000000AB0000000000000005

-rw------- 1 postgres postgres 7371 Mar 4 17:20 000000AB.history

-rw------- 1 postgres postgres 16777216 Mar 4 17:49 000000AC0000000000000005

-rw------- 1 postgres postgres 7415 Mar 4 17:47 000000AC.history

-rw------- 1 postgres postgres 16777216 Mar 4 17:55 000000AD0000000000000005

-rw------- 1 postgres postgres 7459 Mar 4 17:49 000000AD.history

-rw------- 1 postgres postgres 16777216 Mar 4 17:56 000000AE0000000000000005

-rw------- 1 postgres postgres 7503 Mar 4 17:55 000000AE.history

-rw------- 1 postgres postgres 16777216 Mar 4 17:59 000000AF0000000000000005

-rw------- 1 postgres postgres 7547 Mar 4 17:56 000000AF.history

-rw------- 1 postgres postgres 16777216 Mar 4 18:01 000000B00000000000000005

-rw------- 1 postgres postgres 7591 Mar 4 17:59 000000B0.history

-rw------- 1 postgres postgres 16777216 Mar 4 18:12 000000B10000000000000005

-rw------- 1 postgres postgres 7635 Mar 4 18:01 000000B1.history

-rw------- 1 postgres postgres 16777216 Mar 4 18:38 000000B20000000000000005

-rw------- 1 postgres postgres 7679 Mar 4 18:12 000000B2.history

-rw------- 1 postgres postgres 16777216 Mar 4 18:47 000000B30000000000000005

-rw------- 1 postgres postgres 7723 Mar 4 18:38 000000B3.history

-rw------- 1 postgres postgres 16777216 Mar 4 18:52 000000B40000000000000005

-rw------- 1 postgres postgres 7767 Mar 4 18:48 000000B4.history

-rw------- 1 postgres postgres 16777216 Mar 4 18:58 000000B50000000000000005

-rw------- 1 postgres postgres 7811 Mar 4 18:53 000000B5.history

-rw------- 1 postgres postgres 16777216 Mar 4 19:02 000000B60000000000000005

-rw------- 1 postgres postgres 7855 Mar 4 18:59 000000B6.history

-rw------- 1 postgres postgres 16777216 Mar 4 19:16 000000B70000000000000005

-rw------- 1 postgres postgres 7899 Mar 4 19:02 000000B7.history

-rw------- 1 postgres postgres 16777216 Mar 4 19:26 000000B80000000000000005

-rw------- 1 postgres postgres 7943 Mar 4 19:16 000000B8.history

-rw------- 1 postgres postgres 16777216 Mar 4 20:06 000000B90000000000000005

-rw------- 1 postgres postgres 7987 Mar 4 19:26 000000B9.history

-rw------- 1 postgres postgres 16777216 Mar 4 20:26 000000BA0000000000000005

-rw------- 1 postgres postgres 8031 Mar 4 20:06 000000BA.history

-rw------- 1 postgres postgres 16777216 Mar 5 15:06 000000BB0000000000000005

-rw------- 1 postgres postgres 8075 Mar 4 20:26 000000BB.history

-rw------- 1 postgres postgres 16777216 Mar 5 15:36 000000BC0000000000000005

-rw------- 1 postgres postgres 8119 Mar 5 15:06 000000BC.history

-rw------- 1 postgres postgres 16777216 Mar 5 16:25 000000BD0000000000000005

-rw------- 1 postgres postgres 8163 Mar 5 15:36 000000BD.history

-rw------- 1 postgres postgres 16777216 Mar 5 16:57 000000BE0000000000000005

-rw------- 1 postgres postgres 8207 Mar 5 16:25 000000BE.history

-rw------- 1 postgres postgres 16777216 Mar 5 17:25 000000BF0000000000000005

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-rw------- 1 postgres postgres 16777216 Mar 5 19:14 000000C00000000000000005

-rw------- 1 postgres postgres 8295 Mar 5 17:25 000000C0.history

-rw------- 1 postgres postgres 16777216 Mar 5 19:41 000000C10000000000000005

-rw------- 1 postgres postgres 8339 Mar 5 19:14 000000C1.history

-rw------- 1 postgres postgres 16777216 Mar 7 09:42 000000C20000000000000005

-rw------- 1 postgres postgres 8383 Mar 5 19:41 000000C2.history

-rw------- 1 postgres postgres 16777216 Mar 11 13:44 000000C30000000000000005

-rw------- 1 postgres postgres 8427 Mar 7 09:42 000000C3.history

-rw------- 1 postgres postgres 16777216 Mar 11 18:54 000000C40000000000000005

-rw------- 1 postgres postgres 8471 Mar 11 13:44 000000C4.history

-rw------- 1 postgres postgres 16777216 Mar 11 18:55 000000C50000000000000005

-rw------- 1 postgres postgres 8515 Mar 11 18:55 000000C5.history

-rw------- 1 postgres postgres 16777216 Mar 22 19:26 000000C60000000000000005

-rw------- 1 postgres postgres 8559 Mar 20 08:10 000000C6.history

-rw------- 1 postgres postgres 16777216 Mar 22 19:29 000000C70000000000000005

-rw------- 1 postgres postgres 8603 Mar 22 19:26 000000C7.history

-rw------- 1 postgres postgres 16777216 Mar 22 23:29 000000C80000000000000005

-rw------- 1 postgres postgres 8647 Mar 22 19:29 000000C8.history

-rw------- 1 postgres postgres 16777216 Mar 22 23:41 000000C90000000000000005

-rw------- 1 postgres postgres 8691 Mar 22 23:29 000000C9.history

-rw------- 1 postgres postgres 16777216 Mar 23 00:46 000000CA0000000000000005

-rw------- 1 postgres postgres 8735 Mar 22 23:41 000000CA.history

-rw------- 1 postgres postgres 16777216 Mar 23 02:14 000000CB0000000000000005

-rw------- 1 postgres postgres 8779 Mar 23 00:46 000000CB.history

-rw------- 1 postgres postgres 16777216 Mar 23 02:52 000000CC0000000000000005

-rw------- 1 postgres postgres 8823 Mar 23 02:14 000000CC.history

-rw------- 1 postgres postgres 16777216 Mar 23 10:24 000000CD0000000000000005

-rw------- 1 postgres postgres 8867 Mar 23 02:52 000000CD.history

-rw------- 1 postgres postgres 16777216 Mar 23 11:15 000000CE0000000000000005

-rw------- 1 postgres postgres 8911 Mar 23 10:24 000000CE.history

-rw------- 1 postgres postgres 16777216 Mar 23 13:06 000000CF0000000000000005

-rw------- 1 postgres postgres 8955 Mar 23 11:15 000000CF.history

-rw------- 1 postgres postgres 16777216 Mar 23 13:16 000000D00000000000000005

-rw------- 1 postgres postgres 8999 Mar 23 13:06 000000D0.history

-rw------- 1 postgres postgres 16777216 Mar 23 15:23 000000D10000000000000005

-rw------- 1 postgres postgres 9043 Mar 23 13:16 000000D1.history

-rw------- 1 postgres postgres 16777216 Mar 23 21:33 000000D20000000000000005

-rw------- 1 postgres postgres 9087 Mar 23 15:23 000000D2.history

-rw------- 1 postgres postgres 16777216 Mar 23 21:43 000000D30000000000000005

-rw------- 1 postgres postgres 9131 Mar 23 21:33 000000D3.history

-rw------- 1 postgres postgres 16777216 Mar 24 03:06 000000D40000000000000005

-rw------- 1 postgres postgres 9175 Mar 23 21:43 000000D4.history

-rw------- 1 postgres postgres 16777216 Mar 24 03:16 000000D50000000000000005

-rw------- 1 postgres postgres 9219 Mar 24 03:06 000000D5.history

-rw------- 1 postgres postgres 16777216 Mar 24 04:25 000000D60000000000000005

-rw------- 1 postgres postgres 9263 Mar 24 03:16 000000D6.history

-rw------- 1 postgres postgres 16777216 Mar 24 04:34 000000D70000000000000005

-rw------- 1 postgres postgres 9307 Mar 24 04:25 000000D7.history

-rw------- 1 postgres postgres 16777216 Mar 24 08:24 000000D80000000000000005

-rw------- 1 postgres postgres 9351 Mar 24 04:34 000000D8.history

-rw------- 1 postgres postgres 16777216 Mar 24 08:59 000000D90000000000000005

-rw------- 1 postgres postgres 9395 Mar 24 08:24 000000D9.history

-rw------- 1 postgres postgres 16777216 Mar 24 09:09 000000DA0000000000000005

-rw------- 1 postgres postgres 9439 Mar 24 08:59 000000DA.history

-rw------- 1 postgres postgres 16777216 Mar 24 11:06 000000DB0000000000000005

-rw------- 1 postgres postgres 9483 Mar 24 09:09 000000DB.history

-rw------- 1 postgres postgres 16777216 Mar 24 11:14 000000DC0000000000000005

-rw------- 1 postgres postgres 9527 Mar 24 11:06 000000DC.history

-rw------- 1 postgres postgres 16777216 Mar 24 15:33 000000DD0000000000000005

-rw------- 1 postgres postgres 9571 Mar 24 11:14 000000DD.history

-rw------- 1 postgres postgres 16777216 Mar 24 16:33 000000DE0000000000000005

-rw------- 1 postgres postgres 9615 Mar 24 15:33 000000DE.history

-rw------- 1 postgres postgres 16777216 Mar 24 19:37 000000DF0000000000000005

-rw------- 1 postgres postgres 9659 Mar 24 16:33 000000DF.history

-rw------- 1 postgres postgres 16777216 Mar 24 19:54 000000E00000000000000005

-rw------- 1 postgres postgres 9703 Mar 24 19:37 000000E0.history

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-rw------- 1 postgres postgres 9747 Mar 24 19:54 000000E1.history

-rw------- 1 postgres postgres 16777216 Mar 25 06:31 000000E20000000000000005

-rw------- 1 postgres postgres 9791 Mar 24 22:02 000000E2.history

-rw------- 1 postgres postgres 16777216 Mar 25 07:08 000000E30000000000000005

-rw------- 1 postgres postgres 9835 Mar 25 06:31 000000E3.history

-rw------- 1 postgres postgres 16777216 Mar 25 08:44 000000E40000000000000005

-rw------- 1 postgres postgres 9879 Mar 25 07:08 000000E4.history

-rw------- 1 postgres postgres 16777216 Mar 25 09:13 000000E50000000000000005

-rw------- 1 postgres postgres 9923 Mar 25 08:44 000000E5.history

-rw------- 1 postgres postgres 16777216 Mar 25 09:29 000000E60000000000000005

-rw------- 1 postgres postgres 9967 Mar 25 09:13 000000E6.history

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-rw------- 1 postgres postgres 16777216 Mar 25 10:37 000000E80000000000000005

-rw------- 1 postgres postgres 10055 Mar 25 09:54 000000E8.history

-rw------- 1 postgres postgres 16777216 Mar 25 13:43 000000E90000000000000005

-rw------- 1 postgres postgres 10099 Mar 25 10:37 000000E9.history

-rw------- 1 postgres postgres 16777216 Mar 25 13:52 000000EA0000000000000005

-rw------- 1 postgres postgres 10143 Mar 25 13:43 000000EA.history

-rw------- 1 postgres postgres 16777216 Mar 25 14:15 000000EB0000000000000005

-rw------- 1 postgres postgres 10187 Mar 25 13:52 000000EB.history

-rw------- 1 postgres postgres 16777216 Mar 25 14:29 000000EC0000000000000005

-rw------- 1 postgres postgres 10231 Mar 25 14:15 000000EC.history

-rw------- 1 postgres postgres 16777216 Mar 25 15:03 000000ED0000000000000005

-rw------- 1 postgres postgres 10275 Mar 25 14:29 000000ED.history

-rw------- 1 postgres postgres 16777216 Mar 25 16:42 000000EE0000000000000005

-rw------- 1 postgres postgres 10319 Mar 25 15:03 000000EE.history

-rw------- 1 postgres postgres 16777216 Mar 25 18:34 000000EF0000000000000005

-rw------- 1 postgres postgres 10363 Mar 25 16:42 000000EF.history

-rw------- 1 postgres postgres 16777216 Mar 25 19:23 000000F00000000000000005

-rw------- 1 postgres postgres 10407 Mar 25 18:34 000000F0.history

-rw------- 1 postgres postgres 16777216 Mar 25 22:20 000000F10000000000000005

-rw------- 1 postgres postgres 10451 Mar 25 19:23 000000F1.history

drwx------ 2 postgres postgres 12288 Mar 25 19:23 archive_status

ss7-db-pg-0:/ # psql -U postgres

psql (10.10)

Type "help" for help.

postgres=# ps uwwxf | grep -C3 archive

postgres-#

BRs

Fan Liu