Network services start before ethernet devices are up in Red Hat Enterprise Linux

转载于 2019-05-16 08:57:24 发布 · 261 阅读

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#NETWORKDELAY #rhel

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本文介绍了解决Red Hat Enterprise Linux 6中NetworkManager启动过快导致网络依赖服务如LDAP和autofs无法正常工作的问题。通过在/etc/sysconfig/network中添加NETWORKWAIT=yes配置，可以确保在所有接口获取到IP地址后再启动这些服务。

https://access.redhat.com/solutions/36223

SOLUTION 已验证 - 已更新 2014年三月4日18:26 -

English

环境

Red Hat Enterprise Linux 6
NetworkManager

问题

Network Manager gets started, but before the ethernet interfaces can get IP addresses, services that rely on a network connection are started. Problem seen with LDAP and autofs which relies on LDAP for the maps, so nothing gets automounted.
What's the equivalent NETWORKDELAY in RHEL 6

决议

Add "NETWORKWAIT=yes" to /etc/sysconfig/network to block until the interfaces have addresses for NetworkManager.

根源

As per /etc/init.d/NetworkManager

Raw

      if [ -n "${NETWORKWAIT}" ]; then
                [ -z "${LINKDELAY}" ] && LINKDELAY=10
                echo -n $"Waiting for network..."
                nm-online -q --timeout=$LINKDELAY || nm-online -q -x --timeout=30
                [ "$?" = "0" ] && success "network startup" || failure "network startup"
                echo
                [ -n "${NETWORKDELAY}" ] && /bin/sleep ${NETWORKDELAY}
        fi
        [ $RETVAL -eq 0 ] && touch /var/lock/subsys/$servicename
}