Alanxtl commented on issue #2981:
URL: https://github.com/apache/dubbo-go/issues/2981#issuecomment-3531198749

   hi @drama10096 @vipyxc-byte 
   this bug is fixed in https://github.com/apache/dubbo-go/pull/3071, try this
   
   
   
   this bug was introduced in https://github.com/apache/dubbo-go/pull/2726, the 
operation of `bi.url` set to nil and the access of url in 
`cluster/cluster/failover/cluster_invoker.go: 86` may happen concurrently, thus 
cause nil pointer access
   ```
   func (bi *BaseInvoker) Destroy() {
        logger.Infof("Destroy invoker: %s", bi.GetURL())
        bi.destroyed.Store(true)
        bi.available.Store(false)
        bi.url = nil
   }
   ```


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