Parallelize LUQueryInstanceData
Parallelize LUQueryInstanceData

Reviewed-by: iustinp


onponomarev/ganeti,yiannist/ganeti,ganeti/ganeti,leshchevds/ganeti,apyrgio/snf-ganeti,dimara/ganeti,leshchevds/ganeti,andir/ganeti,andir/ganeti,ganeti/ganeti,mbakke/ganeti,yiannist/ganeti,bitemyapp/ganeti,dimara/ganeti,ganeti/ganeti,apyrgio/ganeti,onponomarev/ganeti,apyrgio/snf-ganeti,ganeti-github-testing/ganeti-test-1,mbakke/ganeti,grnet/snf-ganeti,bitemyapp/ganeti,apyrgio/ganeti,mbakke/ganeti,yiannist/ganeti,leshchevds/ganeti,ganeti-github-testing/ganeti-test-1,grnet/snf-ganeti,andir/ganeti