MySQL NDB集群备份中止失败且无法启动新备份问题求助

我现在碰到了NDB集群备份的棘手问题，想向大家求助。

我尝试用以下命令中止一个备份任务：

ndb_mgm> abort backup 2304081512

Abort of backup 2304081512 ordered

执行后虽然提示已经下达中止指令，但备份状态完全没变化，看起来像是卡住了：

ndb_mgm> all report backup

Node 2: Backup not started

Node 3: Local backup status: backup 2304081512 started from node 12

#Records: 1950 #LogRecords: 8705

Data: 635312 bytes Log: 2676612 bytes

Node 4: Local backup status: backup 2304081512 started from node 12

#Records: 1768 #LogRecords: 7211

Data: 522256 bytes Log: 2133088 bytes

更麻烦的是，当我尝试启动新的备份任务时，直接报错说已有备份在运行：

ndb_mgm> start backup 2304091121 snapshotstart

Connected to Management Server at: 192.168.169.40:1186

Waiting for completed, this may take several minutes

Node 3: Backup request from 12 failed to start. Error: 1302

Backup failed

*  3001: Could not start backup

*        A backup is already running: Permanent error: Application error

另外，除了备份问题，Node 2的NDB引擎日志里还有一条告警信息，不知道和当前问题有没有关联：

2023-04-07 10:31:57 [ndbd] ALERT -- Node 2: Forced node shutdown completed. Caused by error 2315: 'Node declared dead. See error log for details(Arbitration error). Temporary error, restart node'.

现在我完全不知道该怎么解决这个困境，希望有相关经验的朋友能给我一些建议，谢谢大家！

备注：内容来源于stack exchange，提问作者Julien