Hi!
Errors in pg_wal directory seems not to occur in patched version. Errors in pg_stat_tmp still occur. Yesterdays log introduces new error message
using stale statistics instead of current ones because stats collector is not responding
2021-03-21 03:02:23 EET stats collector LOG: could not rename temporary statistics file "pg_stat_tmp/global.tmp" to "pg_stat_tmp/global.stat": Permission denied
2021-03-21 13:31:00 EET stats collector LOG: could not rename temporary statistics file "pg_stat_tmp/global.tmp" to "pg_stat_tmp/global.stat": Permission denied
2021-03-21 15:15:52 EET stats collector LOG: could not rename temporary statistics file "pg_stat_tmp/global.tmp" to "pg_stat_tmp/global.stat": Permission denied
2021-03-21 23:51:20 EET stats collector LOG: could not rename temporary statistics file "pg_stat_tmp/global.tmp" to "pg_stat_tmp/global.stat": Permission denied
2021-03-21 23:51:25 EET autovacuum worker LOG: using stale statistics instead of current ones because stats collector is not responding
Andrus.