Error in listener log

Posted by satish on Aug 24, 2021; 5:29am
URL: http://erman-arslan-s-oracle-forum.124.s1.nabble.com/Error-in-listener-log-tp10158.html

Hi erman,

Error in listener log.What may be the reasons for below error.some people say it is due to high load in server.Need your expertise.

msg>
<msg time='2021-08-24T09:49:20.054+05:30' org_id='oracle' comp_id='tnslsnr'
type='UNKNOWN' level='16' host_id='ttd-db01-new'
host_addr='fe80::e68e:d35b:2766:6ad5%ens192'>
<txt>TNS-12518: TNS:listener could not hand off client connection
TNS-12536: TNS:operation would block
  TNS-12560: TNS:protocol adapter error
   TNS-00506: Operation would block
    Linux Error: 11: Resource temporarily unavailable
</txt>


We are unable to open this https://access.redhat.com/solutions/417883


Rhel 7.3
DB 12.1.0.2.0

Thank you