somejfn commented on issue #2890: KVMHAMonitor thread blocks indefinitely while 
NFS not available
URL: https://github.com/apache/cloudstack/issues/2890#issuecomment-434282030
 
 
   If you just shutdown the NFS server,  the NFS client will get immediate
   response (TCP reset) so this is not the same as blocking the NFS server IP
   with iptables and DROP rules like I do for testing the network outage:
   
   *iptables -I INPUT -s nfs_server_ip -j DROP ; iptables -I OUTPUT -d
   nfs_server_ip -j DROP*
   
   It may take more than one attempt to see the tread pool block.
   
   
   
   On Tue, Oct 30, 2018 at 4:47 AM Rohit Yadav <[email protected]>
   wrote:
   
   > Based on the triaging exercise, I've moved this to 4.11.3.0 as further
   > discussion is pending. I've taken the least risk approach to revert part of
   > the change in behaviour and submitted - #2984
   > <https://github.com/apache/cloudstack/pull/2984>
   >
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