MariaDB 10.4.12, gcache is created after every restart.

2020-06-27 18:29:11 28 [Note] WSREP: Server status change joined -> synced
2020-06-27 18:29:11 28 [Note] WSREP: Synchronized with group, ready for connections
2020-06-27 18:29:11 28 [Note] WSREP: wsrep_notify_cmd is not defined, skipping notification.
2020-06-27 18:29:21 0 [Note] WSREP: Deleted page /var/lib/mysql/gcache.page.000000
2020-06-27 18:29:24 0 [Note] InnoDB: Buffer pool(s) load completed at 200627 18:29:24
2020-06-27 18:29:24 0 [Note] WSREP: Created page /var/lib/mysql/gcache.page.000001 of size 268435456 bytes
2020-06-27 18:29:25 0 [Note] WSREP: Deleted page /var/lib/mysql/gcache.page.000001
2020-06-27 18:29:27 0 [Note] WSREP: Created page /var/lib/mysql/gcache.page.000002 of size 268435456 bytes

When the server is restarted once more and gcache creation is gone. Basically I have to restart it twice or after the first start, I have to restart it once more.

Settings for the gcache are:

gcache.dir = /var/lib/mysql/; gcache.keep_pages_size = 4; gcache.mem_size = 0; gcache.name = galera.cache; gcache.page_size = 256M; gcache.recover = yes; gcache.size = 4G;