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Rohit Yadav commented on CLOUDSTACK-7974: ----------------------------------------- [~jayapal] Since multiple nics/entries are not possible for the same host in a network I'm going to remove this line and test it. Can you comment if this will impact any other network topology? About dnsmasq I see there is a dnsmasq_edithosts.sh which looks like it should clean up old leases and restart dns service but it is using $DHCP_LEASES that is not defined anywhere, can you confirm if this actually works, if this $DHCP_LEASES is available from environment and if so does it go through /etc/hosts files to decide which entries to keep and which to purge? > deleted VM entries still exists in /etc/hosts and /etc/dhcphosts.txt files on > virtual router > -------------------------------------------------------------------------------------------- > > Key: CLOUDSTACK-7974 > URL: https://issues.apache.org/jira/browse/CLOUDSTACK-7974 > Project: CloudStack > Issue Type: Bug > Security Level: Public(Anyone can view this level - this is the > default.) > Components: Virtual Router > Affects Versions: 4.3.0 > Reporter: Yiping Zhang > Assignee: Rohit Yadav > Fix For: 4.5.0, 4.6.0, 4.4.2, 4.4.3, 4.3.2 > > > We have noticed that entries for hosts which have been destroyed for a long > time still exist in both /etc/dhcphosts.txt and /etc/hosts files on our > Virtual Routers. > To reproduce this bug, just create an instance, note down its MAC and IP > address, then destroy the instance from web UI. Now check virtual router, > and you will find that the entries still exist in /etc/dhcphosts.txt and > /etc/hosts files. > I did a bit more digging on virtual router, and immediately noticed the > following: > 1. /root/edithosts.sh script is only called when an instance is created, but > not when an instance is destroyed. > 2. After reading /root/edithosts.sh script, I am pretty certain that the > function of this script is to add info about newly created instances into > /etc/hosts and /etc/dhcphosts.txt files. So the script should really be > renamed as /root/addhosts.sh to reflect its true function. > 3. there is no script to properly delete entries from /etc/hosts and > /etc/dhcphosts.txt file when instances are destroyed -- This message was sent by Atlassian JIRA (v6.3.4#6332)