ceph 分布式存储mon服务无法正常启动急救过程
首先收集mon信息创建一个mon临时文件夹收集信息（在第一个节点上）
cephadm bootstrap --mon-ip 10.12.1.2 --fsid ce68aab8-8f46-11ed-88c0-ac1f6b3a30b9--allow-overwrite
Verifying podman|docker is present...
Verifying lvm2 is present...
Verifying time synchronization is in place...
Unit chronyd.service is enabled and running
Repeating the final host check...
podman|docker (/usr/bin/podman) is present
systemctl is present
lvcreate is present
Unit chronyd.service is enabled and running
Host looks OK
Cluster fsid: ce68aab8-8f46-11ed-88c0-ac1f6b3a30b9
Verifying IP 10.12.1.2 port 3300 ...
Verifying IP 10.12.1.2 port 6789 ...
Mon IP 10.12.1.2 is in CIDR network 10.12.0.0/15
Pulling container image quay.io/ceph/ceph:v15...
Extracting ceph user uid/gid from container image...
Creating initial keys...
Creating initial monmap...
Creating mon...
Waiting for mon to start...
Waiting for mon...
/usr/bin/ceph: timeout after 60 seconds
Non-zero exit code -9 from /usr/bin/podman run --rm --ipc=host --net=host --entrypoint /usr/bin/ceph -e CONTAINER_IMAGE=quay.io/ceph/ceph:v15 -e NODE_NAME=gm268-1 -v /var/lib/ceph/ce68aab8-8f46-11ed-88c0-ac1f6b3a30b9/mon.gm268-1:/var/lib/ceph/mon/ceph-gm268-1:z -v /tmp/ceph-tmp0_riv0ag:/etc/ceph/ceph.client.admin.keyring:z -v /tmp/ceph-tmpas_60296:/etc/ceph/ceph.conf:z quay.io/ceph/ceph:v15 status
mon not available, waiting (1/10)...
/usr/bin/ceph: timeout after 60 seconds
Non-zero exit code -9 from /usr/bin/podman run --rm --ipc=host --net=host --entrypoint /usr/bin/ceph -e CONTAINER_IMAGE=quay.io/ceph/ceph:v15 -e NODE_NAME=gm268-1 -v /var/lib/ceph/ce68aab8-8f46-11ed-88c0-ac1f6b3a30b9/mon.gm268-1:/var/lib/ceph/mon/ceph-gm268-1:z -v /tmp/ceph-tmp0_riv0ag:/etc/ceph/ceph.client.admin.keyring:z -v /tmp/ceph-tmpas_60296:/etc/ceph/ceph.conf:z quay.io/ceph/ceph:v15 status
mon not available, waiting (2/10)...
这个方法危险系数比较大，慎用。最好采用https://www.bbs168x.cn/forum.php?mod=viewthread&tid=2944#lastpost最好采用这个里面的方法去做安全点。至少不会出现丢数据的情况。
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