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[Xen-API] Frequent I/O error of HTTP server and memory error on XenServe

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Subject: [Xen-API] Frequent I/O error of HTTP server and memory error on XenServer5.6 FP1
From: Frank <frank@xxxxxxxxx>
Date: Thu, 13 Jan 2011 14:13:54 -0800
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I am using XenServer5.6 FP1 GA release with openvswitch as network backend. When I create VM through xapi, "apache.xmlrpc.XmlRpcException: I/O error" happens very frequently. At meanwhile my xencenter lost connection to hosts. Another thing is when I tried to kill VMs from xencenter, it complains "Internal error:Sys_error("Thread.create: Cannot allocate memory")", see attached picture.
    does anyone meet similar errors?
    Thank you.

Attachment: memory-error.JPG
Description: JPEG image

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