On 05/24/2013 02:22 AM, Sage Weil wrote: > On Thu, 23 May 2013, Yan, Zheng wrote: >> From: "Yan, Zheng" <zheng.z.yan@xxxxxxxxx> >> >> Patch 1~21 are random fixes for MDS cluster. Patch 22~28 rework >> the backtrace handling. Patch 29 introduces lookup-by-ino helper. >> Path 30 uses the lookup-by-ino helper to fix issue #4850. >> >> This patch series are also in: >> git://github.com/ukernel/ceph.git wip-mds > > Awesome! I pushed this to wip-mds in ceph.git for now. Note that > gitbuilders are picking up a failure due to the encoding changes. For the > types and messages that change, can you mark them in the > ceph-object-corpus.git tree? Look for the forward_incompat/ dirs and > follow that example. > Could you be more specific. Change in patch 14 should only affect MExportDir and MExportCaps, object-corpus does not contain objects for these two messages. Patch 27 looks suspicious, does the incompatible change you mentioned cause the failure? > I reviewed up until the backtrace patch before I ran out of time (catching > a plane). If you can address the comments we can get at least that > much merged. I'll defer to Greg for now on the backtrace changes, though, > as he is more familiar with that original code. > > Can't wait to get the lookup-by-ino into tree... I think the ganesha guys > will be happy about that too. Do you have any stress tests for that? > There is a wip-cephfs branch (incomplete and not quite ready yet, but..) > branch that adds a handle-based API to libcephfs. Soon we should build > some tests for the ino lookup based on that (or something similar) so we > can hammer the mds cluster under various load/stress conditions. > The only test case I have is patch 30. My environment has 3 active MDS and 2 clients running fsstress and blogbench. I restart random MDS every 2 minutes. Each time MDS restarts, the lookup-by-ino function need open about 300 missing inodes. I have run the restart test more than 1000 passes. No unsolved bug in the lookup-by-ino function. I have updated all patches you have comments, re-push them to: https://github.com/ukernel/ceph.git wip-mds Regards Yan, Zheng -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
