MariaDB acess denied mysql

i get this error
MySQL said: Access denied for user 'root'@'localhost' (using password: YES) i can not connect to database the password is correct database running. any help

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i update the passwor dbut nothing chnage and when i debuge i get this

Code:

-- Unit session-13.scope has begun starting up.
Aug 08 18:40:01 srv1.orbatatech.com CROND[5657]: (root) CMD (/usr/lib64/sa/sa1 1 1)
Aug 08 18:40:20 srv1.orbatatech.com kernel: Firewall: *TCP_IN Blocked* IN=eth0 OUT= MAC=f2:3c:91:e2:8b:95:50:87:89:40:a1:c1:08:00 SRC=182.180.124.242 DST=139.x.x.x LEN=44 TOS=0x08 PRE
Aug 08 18:40:25 srv1.orbatatech.com systemd[1]: mariadb.service start operation timed out. Terminating.
Aug 08 18:41:07 srv1.orbatatech.com systemd[1]: mariadb.service: main process exited, code=exited, status=1/FAILURE
Aug 08 18:41:07 srv1.orbatatech.com systemd[1]: Failed to start MariaDB database server.
-- Subject: Unit mariadb.service has failed
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Unit mariadb.service has failed.
--
-- The result is failed.
Aug 08 18:41:07 srv1.orbatatech.com systemd[1]: Unit mariadb.service entered failed state.
Aug 08 18:41:07 srv1.orbatatech.com systemd[1]: mariadb.service failed.
Aug 08 18:41:07 srv1.orbatatech.com polkitd[3215]: Unregistered Authentication Agent for unix-process:5392:118033 (system bus name :1.39, object path /org/freedesktop/PolicyKit1/Authentica
ESCOD
-- Subject: Unit session-12.scope has begun start-up
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Unit session-12.scope has begun starting up.
Aug 08 18:40:01 srv1.orbatatech.com systemd[1]: Started Session 13 of user root.
-- Subject: Unit session-13.scope has finished start-up
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 

i think its attack in mariadb server,honesty its the third time i get this with linode and specially with Frankfurt datacenter

 

Code:

- The result is failed.
Aug 08 18:41:07 srv1.orbatatech.com systemd[1]: Unit mariadb.service entered failed state.
Aug 08 18:41:07 srv1.orbatatech.com systemd[1]: mariadb.service failed.
Aug 08 18:41:07 srv1.orbatatech.com polkitd[3215]: Unregistered Authentication Agent for unix-process:5392:118033 (system bus name :1.39, object path /org/freedesktop/PolicyKit1/Authentica

 

fixed.
thank you for your help @eva2000 its was problem of process i kill it and restart and all ok.