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pgsql_tmp in PAGE-type backups #246

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@beremour

Description

@beremour

It is just a question: doing backup on test installation, I've noticed that one of PAGE backups with ID "QEVARD 2020-08-11 00:43" has abnormal size16GB.

pg_probackup-12 show     -B /backup/pgsql

BACKUP INSTANCE 'main'
======================================================================================================================================
 Instance  Version  ID      Recovery Time           Mode  WAL Mode  TLI    Time    Data   WAL  Zratio  Start LSN   Stop LSN    Status
======================================================================================================================================
 main      12       QEW83D  2020-08-11 12:38:28+03  PAGE  STREAM    1/1     34s  4102MB  32MB    1.00  1/52000028  1/531A4A50  OK
 main      12       QEW5BD  2020-08-11 11:38:30+03  PAGE  STREAM    1/1     31s  4115MB  32MB    1.00  1/4F000028  1/501A5740  OK
 main      12       QEW2JD  2020-08-11 10:38:30+03  PAGE  STREAM    1/1     33s  4102MB  32MB    1.00  1/4B000028  1/4C1A4DE8  OK
 main      12       QEVZRD  2020-08-11 09:39:00+03  PAGE  STREAM    1/1   1m:7s  8198MB  32MB    1.00  1/48000028  1/491A5AD0  OK
 main      12       QEVWZD  2020-08-11 08:38:55+03  PAGE  STREAM    1/1   1m:0s  8199MB  32MB    1.00  1/45000028  1/461A67D8  OK
 main      12       QEVU7D  2020-08-11 07:38:58+03  PAGE  STREAM    1/1     59s  8208MB  48MB    1.00  1/42000028  1/431A3E48  OK
 main      12       QEVRFD  2020-08-11 06:38:58+03  PAGE  STREAM    1/1   1m:7s  8199MB  32MB    1.00  1/3E000028  1/3F1A4B40  OK
 main      12       QEVOND  2020-08-11 05:38:39+03  PAGE  STREAM    1/1     39s  5126MB  32MB    1.00  1/3B000028  1/3C1A41B0  OK
 main      12       QEVLVD  2020-08-11 04:38:52+03  PAGE  STREAM    1/1     52s  8207MB  32MB    1.00  1/38000028  1/391A4ED0  OK
 main      12       QEVJ3D  2020-08-11 03:38:30+03  PAGE  STREAM    1/1     38s  4102MB  32MB    1.00  1/34000028  1/351A4540  OK
 main      12       QEVGBD  2020-08-11 02:38:31+03  PAGE  STREAM    1/1     39s  4102MB  32MB    1.00  1/31000028  1/321A5230  OK
 main      12       QEVDJD  2020-08-11 01:38:28+03  PAGE  STREAM    1/1     32s  4110MB  48MB    1.00  1/2E000028  1/2F1A5EE0  OK
 main      12       QEVARD  2020-08-11 00:43:33+03  PAGE  STREAM    1/1  5m:33s    16GB  32MB    1.00  1/2A000028  1/2B1A5620  OK
 main      12       QEV7ZD  2020-08-10 23:38:59+03  PAGE  STREAM    1/1   1m:1s  8207MB  32MB    1.00  1/27000028  1/281A6238  OK
 main      12       QEV57D  2020-08-10 22:39:00+03  PAGE  STREAM    1/1   1m:3s  8199MB  32MB    1.00  1/24000028  1/25A33EC0  OK
 main      12       QEV2FD  2020-08-10 21:38:55+03  PAGE  STREAM    1/1   1m:1s  8198MB  32MB    1.00  1/21000028  1/221A6888  OK
 main      12       QEUZND  2020-08-10 20:38:36+03  PAGE  STREAM    1/1     37s  5132MB  32MB    1.00  1/1E000028  1/1F1A7518  OK
 main      12       QEUWVD  2020-08-10 19:38:29+03  PAGE  STREAM    1/1     33s  4102MB  32MB    1.00  1/1A000028  1/1B1A6C20  OK
 main      12       QEUU3D  2020-08-10 18:38:29+03  PAGE  STREAM    1/1     33s  4108MB  32MB    1.00  1/17000028  1/181A7908  OK
 main      12       QEURBD  2020-08-10 17:38:30+03  PAGE  STREAM    1/1     34s  4102MB  48MB    1.00  1/14000028  1/151A8F40  OK
 main      12       QEUOJD  2020-08-10 16:38:33+03  PAGE  STREAM    1/1     33s  4107MB  32MB    1.00  1/11000028  1/121A3C40  OK
 main      12       QEULRD  2020-08-10 15:38:27+03  PAGE  STREAM    1/1     32s  4102MB  32MB    1.00  1/E000028   1/F1A32E8   OK
 main      12       QEUIZD  2020-08-10 14:39:01+03  PAGE  STREAM    1/1   1m:2s  8202MB  32MB    1.00  1/B000028   1/C1A4028   OK
 main      12       QEUG7D  2020-08-10 13:39:01+03  PAGE  STREAM    1/1   1m:2s  8201MB  32MB    1.00  1/8000028   1/91A5600   OK
 main      12       QEUDFD  2020-08-10 12:39:02+03  PAGE  STREAM    1/1   1m:4s  8200MB  32MB    1.00  1/5000028   1/61A4380   OK
 main      12       QEUAND  2020-08-10 11:38:58+03  PAGE  STREAM    1/1   1m:4s  8201MB  48MB    1.00  1/2000028   1/31A5070   OK
 main      12       QEU7VD  2020-08-10 10:38:31+03  PAGE  STREAM    1/1     32s  4106MB  32MB    1.00  0/FF000028  1/1A46D8    OK
 main      12       QEU53D  2020-08-10 09:38:58+03  PAGE  STREAM    1/1   1m:6s  8202MB  32MB    1.00  0/FC000028  0/FD1A5370  OK
 main      12       QEU2BD  2020-08-10 08:38:36+03  PAGE  STREAM    1/1     36s  4102MB  32MB    1.00  0/F9000028  0/FA1A49E0  OK
 main      12       QETZJD  2020-08-10 07:38:37+03  PAGE  STREAM    1/1     42s  4103MB  32MB    1.00  0/F6000028  0/F71A56D0  OK
 main      12       QETWRD  2020-08-10 06:38:59+03  PAGE  STREAM    1/1   1m:2s  8198MB  32MB    1.00  0/F3000028  0/F41A6C70  OK
 main      12       QETTZD  2020-08-10 05:38:31+03  PAGE  STREAM    1/1     33s  4105MB  32MB    1.00  0/F0000028  0/F11A5D58  OK
 main      12       QETR7D  2020-08-10 04:38:57+03  PAGE  STREAM    1/1     57s  8200MB  48MB    1.00  0/ED000028  0/EE1A6A98  OK
 main      12       QETOFD  2020-08-10 03:38:31+03  PAGE  STREAM    1/1     32s  4103MB  32MB    1.00  0/EA000028  0/EB1A60C0  OK
 main      12       QETLND  2020-08-10 02:38:33+03  PAGE  STREAM    1/1     33s  4102MB  32MB    1.00  0/E7000028  0/E81A6D68  OK
 main      12       QETIVD  2020-08-10 01:38:32+03  PAGE  STREAM    1/1     39s  4103MB  48MB    1.00  0/E4000028  0/E51A4448  OK
 main      12       QETG3D  2020-08-10 00:38:31+03  PAGE  STREAM    1/1     35s  4103MB  48MB    1.00  0/E1000028  0/E21A5130  OK
 main      12       QETDBE  2020-08-09 23:38:31+03  PAGE  STREAM    1/1     31s  4101MB  32MB    1.00  0/DE000028  0/DF1A66B8  OK
 main      12       QETBK1  2020-08-09 23:00:03+03  PAGE  STREAM    1/1      5s  2923kB  48MB    1.00  0/DB000028  0/DC0000B8  OK
 main      12       QETAJD  2020-08-09 22:38:27+03  PAGE  STREAM    1/1     32s  4098MB  32MB    1.00  0/D8000028  0/D91A5500  OK
 main      12       QET9XE  2020-08-09 22:25:56+03  PAGE  STREAM    1/1  1m:11s  8941MB  32MB    1.00  0/D5000028  0/D6001F60  OK
 main      12       QET9SV  2020-08-09 22:23:10+03  FULL  STREAM    1/0  1m:10s  7688MB  32MB    1.00  0/AD0000D8  0/AD000250  OK
-bash-4.2$

Directory with backup ..../QEVARD/database/base/pgsql_tmp contains large "pgsql_tmp" subdir.

ls -lh /vol/pgsql/backups/main/QEVARD/database/base/pgsql_tmp/*
-rw-------. 1 postgres postgres 1.0G Aug 11 00:38 /vol/pgsql/backups/main/QEVARD/database/base/pgsql_tmp/pgsql_tmp19299.0
-rw-------. 1 postgres postgres 1.0G Aug 11 00:38 /vol/pgsql/backups/main/QEVARD/database/base/pgsql_tmp/pgsql_tmp19299.1
-rw-------. 1 postgres postgres 1.0G Aug 11 00:41 /vol/pgsql/backups/main/QEVARD/database/base/pgsql_tmp/pgsql_tmp19299.10
-rw-------. 1 postgres postgres 1.0G Aug 11 00:41 /vol/pgsql/backups/main/QEVARD/database/base/pgsql_tmp/pgsql_tmp19299.11
-rw-------. 1 postgres postgres 1.0G Aug 11 00:42 /vol/pgsql/backups/main/QEVARD/database/base/pgsql_tmp/pgsql_tmp19299.12
-rw-------. 1 postgres postgres 1.0G Aug 11 00:42 /vol/pgsql/backups/main/QEVARD/database/base/pgsql_tmp/pgsql_tmp19299.13
-rw-------. 1 postgres postgres 1.0G Aug 11 00:42 /vol/pgsql/backups/main/QEVARD/database/base/pgsql_tmp/pgsql_tmp19299.14
-rw-------. 1 postgres postgres 1.0G Aug 11 00:43 /vol/pgsql/backups/main/QEVARD/database/base/pgsql_tmp/pgsql_tmp19299.15
-rw-------. 1 postgres postgres 1.1M Aug 11 00:38 /vol/pgsql/backups/main/QEVARD/database/base/pgsql_tmp/pgsql_tmp19299.16
-rw-------. 1 postgres postgres 1.0G Aug 11 00:42 /vol/pgsql/backups/main/QEVARD/database/base/pgsql_tmp/pgsql_tmp19299.2
-rw-------. 1 postgres postgres 1.0G Aug 11 00:42 /vol/pgsql/backups/main/QEVARD/database/base/pgsql_tmp/pgsql_tmp19299.3
-rw-------. 1 postgres postgres 1.0G Aug 11 00:39 /vol/pgsql/backups/main/QEVARD/database/base/pgsql_tmp/pgsql_tmp19299.4
-rw-------. 1 postgres postgres 1.0G Aug 11 00:43 /vol/pgsql/backups/main/QEVARD/database/base/pgsql_tmp/pgsql_tmp19299.5
-rw-------. 1 postgres postgres 1.0G Aug 11 00:39 /vol/pgsql/backups/main/QEVARD/database/base/pgsql_tmp/pgsql_tmp19299.6
-rw-------. 1 postgres postgres 1.0G Aug 11 00:40 /vol/pgsql/backups/main/QEVARD/database/base/pgsql_tmp/pgsql_tmp19299.7
-rw-------. 1 postgres postgres 1.0G Aug 11 00:41 /vol/pgsql/backups/main/QEVARD/database/base/pgsql_tmp/pgsql_tmp19299.8
-rw-------. 1 postgres postgres 1.0G Aug 11 00:42 /vol/pgsql/backups/main/QEVARD/database/base/pgsql_tmp/pgsql_tmp19299.9
Press any key to continue...

Is it OK, that "pgsql_tmp*" files goes to PAGE backup ?

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