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裂脑恢复文件系统未安装后

tag-icon • tag-icon cluster failover high-availability drbd pacemaker
裂脑恢复文件系统未安装后

我有一个带有起搏器+裂脑的主动/被动高可用性集群。裂脑情况发生后，我使用自动裂脑恢复来恢复我的系统。

问题是由于文件系统资源由 CRM 管理，因此在裂脑恢复后不会安装。裂脑恢复后什么都没有安装！

看来我应该使用 stonith 设备，但我的老板要求我在不使用任何额外设备的情况下解决这个问题！我如何才能将裂脑情况通知给 Pacemaker，以便它重新挂载文件系统资源？

编辑：我的 crm 配置

node drbd3
node drbd4
primitive apache ocf:heartbeat:apache \
        params configfile="/etc/apache2/apache2.conf" httpd="/usr/sbin/apache2" \
        op monitor interval="5s"
primitive drbd_disk ocf:linbit:drbd \
        params drbd_resource="r0" \
        op monitor interval="15s"
primitive fs_drbd ocf:heartbeat:Filesystem \
        params device="/dev/drbd/by-res/r0" directory="/mnt" fstype="ext4"
primitive ip1 ocf:heartbeat:IPaddr2 \
        params ip="10.8.0.95" nic="eth0"
group group1 ip1 apache
ms ms_drbd drbd_disk \
        meta master-max="1" master-node-max="1" clone-max="2" clone-node-max="1" notify="true"
colocation mnt_on_master inf: fs_drbd ms_drbd:Master
order apache_after_ip inf: ip1:start apache:start
order mount_after_drbd inf: ms_drbd:promote fs_drbd:start
property $id="cib-bootstrap-options" \
        dc-version="1.0.8-042548a451fce8400660f6031f4da6f0223dd5dd" \
        cluster-infrastructure="openais" \
        expected-quorum-votes="2" \
        stonith-enabled="false" \
        no-quorum-policy="ignore"

和我的 drdb 配置：

global { usage-count no; }
common { syncer { rate 100M; } }
resource r0 {
        protocol C;
        startup {
                wfc-timeout  1;
                degr-wfc-timeout 1;
        }
#       disk{
#               fencing resource-only;
#       }
        handlers {
                #split-brain "/usr/lib/drbd/notify-split-brain.sh root";
#                fence-peer "/usr/lib/drbd/crm-fence-peer.sh";
#                after-resync-target "/usr/lib/drbd/crm-unfence-peer.sh";

        }

        net {
                cram-hmac-alg sha1;
                shared-secret "test";
               # allow-two-primaries;
                after-sb-0pri discard-zero-changes;
                after-sb-1pri discard-secondary;
                after-sb-2pri call-pri-lost-after-sb;
        }
        on drbd3 {
                device /dev/drbd0;
                disk /dev/sda1;
                address 10.8.0.93:7788;
                meta-disk internal;
        }
        on drbd4 {
                device /dev/drbd0;
                disk /dev/sda1;
                address 10.8.0.94:7788;
                meta-disk internal;
        }
}
#include "drbd.d/global_common.conf";
#include "drbd.d/*.res";
~

答案1

对于上述情况，您可以添加以下几行来/etc/rc.local解决问题 -

#drbdadm secondary resource-name<resource> 
#drbdadm disconnect resource-name<resource>
#drbdadm -- --discard-my-data connect resource-name<resource>

将上述命令添加到 NODE-1[主/活动节点]/etc/rc.local文件

drbdadm connect resource-name<resource>

将上述命令添加到 NODE-2[辅助/被动节点]/etc/rc.local文件

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