Monthly Archives: September 2016

xend Error: Acquire running lock failed: 256

Recently I encountered this issue in OVMM 3.2.9  while starting a vm with xm create <vm.cfg path> The reason behind this found was : the vm was not shutdown properly  and the lock file is still there even if VM … Continue reading

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xend issue : Xend has probably crashed! Invalid or missing HTTP status code.

I recently found  some VMs of one OVS node( from 30+ nodes)  went down and not able to start with this error : Xend has probably crashed!  Invalid or missing HTTP status code. There are many reasons behind this. And … Continue reading

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Python : Inplace update json and maintain proper order

Some time we have to read one existing json property file and  update some values inplace. If we don’t use proper approach, the update may lead to breaking the json structure in the file. We have to hook the json … Continue reading

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