Am 2012-06-07 12:07, schrieb Yibin Shen: > On Thu, Jun 7, 2012 at 5:38 PM, Liu Yuan <namei.unix at gmail.com> > wrote: >> Maybe you refer to object cache? Yes, sorry, mixed that two... >> Without object cache, the answer is NO, the data will be known to >> the >> cluster as soon as the request is completely. >> >> With object cache enabled, probably 'nope' again, but I am not 100% >> sure, live migration mechanism from QEMU will issue a flush request >> to >> sheep and block for it, then will migrate memory to other machine. >> For >> the last try with live migration, it did the right thing for me, but >> you'd better test it with your own. When I have time, I'll try it >> again >> and give you a solid answer.so > qemu will call sync operation before live migration,(nearly) all > dirty > objects will be > flushed to sheepdog cluster. Thanks for your infos. I am using libvirt with virt-manager on top to manage my virtual machines. With sheepdog 0.2.4 live migration works without problems for month. If the current sheepdog version will work for me, I make some more migration tests and give a feedback. Cheers Bastian |