I have checked the mysql limit and it's very high and usage is way below the limit using them. It's a very small deployment in the lab. 

Following is the docker container running that check 

(mariadb-clustercheck)[root@kolla-infra-1-2 /]# ps aux
USER         PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
root           1  0.0  0.0   2632   924 ?        Ss   Apr04   0:00 dumb-init --single-child -- kolla_start
root           7  0.0  0.0  10280  4760 ?        S    Apr04   8:19 socat -d -lf/var/log/kolla/mariadb/mariadb-clustercheck.log tcp-l:4569,fork,reuseaddr,bind=10.30.50.2 EXEC:clustercheck
root     2070140  0.0  0.0   7624  4240 pts/0    Ss   18:08   0:00 bash
root     2070999  0.0  0.0  10060  1596 pts/0    R+   18:09   0:00 ps aux

When i run manually i got successful reply 

(mariadb-clustercheck)[root@kolla-infra-1-2 /]# clustercheck
HTTP/1.1 200 OK
Content-Type: text/plain
Connection: close
Content-Length: 32

Galera cluster node is synced.

Everything looks ok so far. Not sure if I should ignore that error message or consider it bad. 


On Tue, Apr 11, 2023 at 11:07 PM Alvaro Soto <alsotoes@gmail.com> wrote:
Hey,
I don't have too much kolla hands-on experience, but it'll be nice if you can post SOCAT configurations, specific to the MySQL health check. 
Also, the number 8192 is the default maximum connection value; could you check if you are hitting that limit?

Cheers!

On Tue, Apr 11, 2023 at 8:49 PM Satish Patel <satish.txt@gmail.com> wrote:
Folks,

I am getting the following errors in logs constantly and continually. I have 3 node galera clusters. Everything looks good except this error making me nervous. I have deployed Zed release of kolla openstack. 

==> /var/log/kolla/mariadb/mariadb-clustercheck.log <==
2023/04/12 02:42:16 socat[1574755] W read(7, 0x5653c4a4c000, 8192): Connection reset by peer
2023/04/12 02:42:16 socat[1574761] W read(7, 0x5653c4a4c000, 8192): Connection reset by peer
2023/04/12 02:42:16 socat[1574755] W read(6, 0x5653c4a4c000, 8192): Connection reset by peer
2023/04/12 02:42:16 socat[1574761] W read(6, 0x5653c4a4c000, 8192): Connection reset by peer
2023/04/12 02:42:18 socat[1574767] W read(7, 0x5653c4a4c000, 8192): Connection reset by peer
2023/04/12 02:42:18 socat[1574767] W read(6, 0x5653c4a4c000, 8192): Connection reset by peer


--

Alvaro Soto 

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