check the logs /var/log/vdsm/import//xxxxx by loging into specific host where the vm
import getting, if there is a vcenter time out happened, follow this
https://bugzilla.redhat.com/show_bug.cgi?id=1848862
It looks like virt-v2v creates too many HTTP sessions to the VCenter and it results in 503
error in VMware's VCenter services.
* Workaround for the HTTP method *
I found a workaround to allow VCenter to accept as many sessions as possible you can
change the file /etc/vmware-vpx/vpxd.cfg on the VCenter's server
and add inside the <vmacore> XML tag the following XML:
"
<soap>
<maxSessionCount>0</maxSessionCount>
</soap>
"
You shouldn't replace all the <vmacore> contents, just add the above lines
inside.
It will look something like that:
"
<vmacore>
<cacheProperties>true</cacheProperties>
<soap>
<maxSessionCount>0</maxSessionCount>
</soap>
<ssl/>
<threadPool>
<TaskMax>90</TaskMax>
<threadNamePrefix>vpxd</threadNamePrefix>
</threadPool>
</vmacore>
"