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Re: [Linux-cluster] q about post_fail_delay



On 05/16/2011 06:03 PM, Alvaro Jose Fernandez wrote:
> Hi,
> 
> Do using a post_fail_delay > 0, when triggered, blocks running resources
> on the node, if one is not using GFS? . For example, if one only uses a
> couple of fs resources locally mounted in HA configuration, not shared
> filesystems at all.
> 
> Regards,
> 
> alvaro

I believe that all IO blocks because the cluster is not able to ensure
that messages arrived to all nodes in the same order, as the
silent/failed node stopped responding. This is a trait called "virtual
synchrony".

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