W dniu 02.06.2014 05:52, Liu Yuan pisze: [...] > Actually, this is a notorious memory dead-lock and can't be solved if you run > sbd and sheep on the same nodes. It is a problem similar to NFS that you have > NFS server and client in the same machine. > > Deadlock: > Suppose SBD has dirty pages to writeout to backend of sheep. But sheep itself > need some clean pages to hold this dirty data before do actually disk IOs and > wait kernel to clean some dirty pages, unfortunately those dirty pages need > sheep's help to writeout. > > Solution: > never run client SBD and sheep daemon on the same node.
Hi! It's a bad news. So iSCSI welcome back on the board:) Is it possible to disallow using such configuration in sbd? After such deadlock my test VDI was always broken. Check returns that all pieces was missing. Thanks Liu. Marcin -- sheepdog mailing list sheepdog@lists.wpkg.org http://lists.wpkg.org/mailman/listinfo/sheepdog
