Kubernetes/存储/问题记录/Ceph问题记录.md
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> 本文作者:丁辉
# Ceph问题记录
> 重启 Mon 后 `/opt/ceph-container/bin/entrypoint.sh: Existing mon, trying to rejoin cluster...`
- 该问题通过以下方式"解决" 在 Mon 持久化目录中 `rm -rf /var/lib/ceph/mon/<MONID>` , 其他 mon 将需要重复同样的修复方式。
- 修改启动文件修复
1. 将 mon 容器内的启动脚本复制到宿主机中。
```bash
docker cp ceph-mon:/opt/ceph-container/bin/start_mon.sh .
```
2. 修改启动脚本
```bash
# 找到如下代码,注释掉
v2v1=$(ceph-conf -c /etc/ceph/"${CLUSTER}".conf 'mon host' | tr ',' '\n' | grep -c "${MON_IP_NO_BRACKETS}")
# 替换为如下代码
v2v1=2
```
3. 将修改后的启动脚本再复制到容器中
```bash
docker cp start_mon.sh ceph-mon:/opt/ceph-container/bin/start_mon.sh
```
4. 重新启动 mon 容器
```bash
docker restart ceph-mon
```
5. 再重启其他两个 mon 节点即可恢复