для очистки совести (моей), проверьте через psql что в выводе table pg_stat_archiver ; счетчик archived_count растет, а failed_count при этом стоит на месте
для вашего успокоения :)
postgres=# table pg_stat_archiver ;
archived_count | last_archived_wal | last_archived_time | failed_count | last_failed_wal | last_failed_time | stats_reset
----------------+--------------------------+-------------------------------+--------------+--------------------------+-------------------------------+-------------------------------
118 | 00000004000000FE000000FF | 2021-03-26 21:17:17.812528+03 | 102 | 00000004000000FE0000008A | 2021-03-26 21:10:34.319598+03 | 2021-03-26 20:36:11.753526+03
(1 row)
postgres=#
postgres=#
postgres=# table pg_stat_archiver ;
archived_count | last_archived_wal | last_archived_time | failed_count | last_failed_wal | last_failed_time | stats_reset
----------------+--------------------------+-------------------------------+--------------+--------------------------+-------------------------------+-------------------------------
119 | 00000004000000FF00000000 | 2021-03-26 21:17:20.369442+03 | 102 | 00000004000000FE0000008A | 2021-03-26 21:10:34.319598+03 | 2021-03-26 20:36:11.753526+03