https://www.mattallford.com/tags/buffer-space/Recent content in Buffer Space on Matt AllfordHugoenFri, 24 Mar 2017 01:04:49 +0000https://www.mattallford.com/esxi-agent-cant-send-heartbeats-no-buffer-space-available/Fri, 24 Mar 2017 01:04:49 +0000https://www.mattallford.com/esxi-agent-cant-send-heartbeats-no-buffer-space-available/<p>Quick post. The other day I saw an alert on an ESXi 6.0 host as follows:</p> <p>Agent can&rsquo;t send heartbeats: No buffer space available</p> <p><img loading="lazy" src="https://www.mattallford.com/wp-content/uploads/2017/03/Agent_HEartbeats.png"></p> <p>The host was responsive and connected to vCenter Server, and the VMs were running OK on the host. I checked the vmkernel / hostd / vpxa logs, and the only mention of this was a one liner in the vmkernel log which repeated the error message above.</p>