Shulou(Shulou.com)06/01 Report--

The oracle 11g rac listener appears the listening process offline after adjusting the network, and frequently switches between the two nodes. Check the log / var/log/message and find that there are frequent registration revocation actions.

Monitoring log / u01/app/oracle/diag/tnslsnr/rac1/listener/trace/listener.log

Listening for files / u01/app/11.2.0/grid/network/admin/listener.ora

Oracle error Log / u01/app/oracle/diag/rdbms/oaorcl/oaorcl/trace/alert

Rac process log / u01/app/11.2.0/grid/log/rac/crsd/crsd.log

?? / u03/oracle/app/11.2.0/grid/log/orajdcpt*/alertorajdcpt*.log

?? / u03/oracle/app/11.2.0/grid/log/orajdcpt*/cssd/ocssd.log

/ u01/app/11.2.0/grid/log/rac1/agent/crsd/oraagent_grid/oraagent_grid.log

It is found that there are ip fluctuations.

Solution:

Add in / etc/sysctl.conf

Net.ipv4.conf.default.arp_ignore = 1

Meaning: determine the different ways to send the response to receive the ARP protocol request 0-(default) represents the destination IP address anywhere, configure any interface. 1-reply only if the destination IP address is the local address configured on the incoming interface.

Meaning of net.ipv4.conf.all.arp_ignore = 1: ditto

Then sysctl-p

And add the mac address to the / etc/sysconfig/network-scripts/ifcfg-eth file, which can be viewed with ifconfig

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