2016-09-22 16:20 GMT+02:00 Wido den Hollander <w...@42on.com>: > > > Op 22 september 2016 om 16:13 schreef Matteo Dacrema <mdacr...@enter.eu > >: > > > > > > To be more precise, the node with different OS are only the OSD nodes. > > > > I haven't seen real issues, but a few which I could think of which > *potentially* might be a problem: > > - Different tcmalloc version > - Different libc versions > - Different kernel behavior with TCP connections > > Now, again, I haven't seen any problems, but these are the ones I could > think of. > > The best thing is to make sure all the Ceph versions are identical. > > However, I could recommend to upgrade all machines to the same OS version > since it just makes administrating them a bit easier. > >
We have Ceph cluster with mixed tcmalloc and jemalloc OSD's running diferrent kernel versions. We don't see any problems. Throughput is quite big - 400k PUTs per hour. -- Jarek
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