cui2022 commented on issue #3142:
URL: https://github.com/apache/hugegraph/issues/3142#issuecomment-5238542865

   Thank you very much for your reply. I will handle this issue within this 
week.
   
   In addition, I have another question. Currently, I am conducting tests by 
simulating potential problems that may occur in a production environment.
   
   My current test scenario is as follows: I have 5 Store nodes, and each 
partition has 3 replicas. The service processes are running on the system 
disks, while the data is stored on separate data disks. I simulated a situation 
where the data disk of one Store node was suddenly disconnected, causing data 
loss, while the system disk remained intact.
   
   As a result, data queries may fail, but the node status still appears to be 
normal. After I stopped the damaged node, its status changed from UP to 
OFFLINE. However, I understand that there is a maximum waiting period (48 hours 
by default) before the system considers this node unavailable and triggers 
replica migration.
   
   My question is: Is there any way to manually trigger replica migration? Or 
is it possible to manually change the node status from OFFLINE to an 
invalid/unavailable state, or any other state that can trigger replica 
migration?
   
   My goal is to allow the replica migration to complete first, and then 
restart the damaged node afterward.
   
   I could not find any available APIs related to this operation.
   
   Alternatively, could you please advise whether there is a standard recovery 
procedure for handling a data disk failure scenario? For example, what is the 
recommended process to recover the cluster after a Store node loses its data 
disk?
   
   Thank you very much for your help.


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